Data Versions
This page provides details of the processing and algorithm history for all versions of SMAP data sets. For an explanation of terminology and version naming conventions, refer to the Naming Conventions section of this page.
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SMAP On-Orbit Events List for Instrument Data Users
Master List of Bad and Missing Data
Level 1 (L1) SMAP Data
SMAP L1A Radiometer Time-Ordered Parsed Telemetry (SPL1AP)
Major Version | Temporal Coverage | Version Changes | Maturity State | Composite Release ID (CRID) | Date Implemented |
---|---|---|---|---|---|
Version 1 |
2015-03-31 (16:28) to 2015-09-09 (21:04) | First public data release | Beta | R11850 | 2015-07-31 |
Version 1 |
2015-08-02 (17:17) to 2015-10-26 (18:49) | No science change. CRID incremented to coincide with release of SPL2SMP V1 Beta and V1 SPL3SMP Beta data. | Beta | R11920 | 2015-09-09 |
Version 2 |
2015-03-31 (16:28) to 2015-11-19 (00:46) |
Changes to this version include:
|
Validated-Stage 2 | R12170 | 2015-10-30 |
Version 2 |
2015-12-17 (18:52) to 2016-02-19 (00:41) | No science change. CRID incremented to coincide with changes made for radar and SPL2SMP processing. | Validated-Stage 2 | R12240 | 2015-12-16 |
Version 2 |
2016-02-19 (00:41) to 2016-04-21 (05:16) | No science change. CRID incremented to coincide with changes made to the radiometer reflector table for SPL1BTB V2 and SPL1CTB V2. | Validated-Stage 2 | R12241 | 2016-01-06 |
Version 2 | 2015-11-18 (23:53) to 2016-12-07 (10:36) | No science change. CRID incremented to coincide with the Version 3 release of L1B through L3 products. | Validated-Stage 2 | R13080 | 2016-04-21 |
2016-12-07 (10:31) to 2017-04-24 (11:00) |
No science change. CRID incremented to coincide with the release of the following: enhanced products, including SPL1CTB_E, SPL2SMP_E, SPL3SMP_E, SPL3FTP_E (Version 1); SPL3FTP (Version 1); and SPL2SMP, SPL3SMP (Version 4). | Validated-Stage 2 | R14010 | 2016-12-07 | |
2017-04-24 (10:56) to 2017-09-06 (16:52) |
Changes to this version include:
|
Validated-Stage 2 | R15060 | 2017-04-24 | |
Version 2 |
2017-09-03 (21:36) to 2017-11-14 (23:14) |
Changes to this version include:
|
Validated-Stage 2 | R15152 | 2017-09-03 |
Version 2 | 2017-10-26 (12:22) to 2018-01-09 (21:35) | No science change. CRID incremented to coincide with release of the new SMAP/Sentinel-1 L2 Radiometer/Radar 30-Second Scene 3 km EASE-Grid Soil Moisture (SPL2SMAP_S) product. | Validated-Stage 2 | R15180 | 2017-10-26 |
2017-12-10 (17:54) to 2018-03-14 (19:57) |
No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January and February 2018. | Validated-Stage 2 | R15181 | 2018-01-09 | |
Version 2 |
2018-03-14 (15:51) to 2018-06-03 (23:50) |
No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2018. | Validated-Stage 2 |
R15182 |
2018-03-14 |
Version 2 | 2018-06-01 (16:52) to 2018-06-14 (15:50) | No science change. CRID incremented to coincide with major version update for all L1-L3 SMAP radiometer products with the exception of SPL2SMAP_S. | Validated-Stage 2 | R16000 | 2018-06-01 |
Version 2 | 2015-03-31 (16:28) to 2018-11-07 (17:54) | No science change. CRID incremented to coincide with updates to L1-L3 radiometer products. | Validated-Stage 2 | R16010 | 2018-06-06 |
Version 2 | 2018-11-06 (23:50) to 2018-12-31 (20:46) | No science change. CRID incremented to coincide with TB and half-orbit correction for SPL3SMP, SPL2SMP_E, and SPL3SMP_E products. | Validated-Stage 2 | R16020 | 2018-11-09 |
Version 2 | 2018-12-31 (00:15) to 2019-08-13 (23:05) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2019. | Validated-Stage 2 | R16022 | 2018-12-31 |
Version 2 | 2019-08-11 (07:50) to 2019-12-23 (21:26) | No science change. CRID incremented to coincide with the release of SPL2SMP V6, SPL2SMP_E V3, SPL3SMP V6, and SPL3SMP_E V3. | Validated-Stage 2 | R16510 |
2019-08-15 |
Version 2 |
2019-12-21 (11:56) to 2020-08-27 (21:26) |
No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2020. | Validated-Stage 2 | R16515 | 2019-12-23 |
Version 2 | 2020-08-27 (21:22) to present | No science change. CRID incremented to coincide with the release of new versions of L1B-L3 data sets. | Validated-Stage 2 | R17000 | 2020-09-01 |
SMAP L1B Radiometer Half-Orbit Time-Ordered Brightness Temperatures (SPL1BTB)
Major Version | Temporal Coverage | Version Changes | Maturity State | Composite Release ID (CRID) | Date Implemented |
---|---|---|---|---|---|
Version 1 | 2015-03-31 (16:28) to 2015-09-09 (06:18) | First public data release | Beta (Report![]() |
R11850 | 2015-07-31 |
Version 1 |
2015-09-09 (21:00) to 2015-10-26 (15:32) | No science change. CRID incremented to coincide with release of SPL2SMP Beta and SPL3SMP Beta data. | Beta (Report![]() |
R11920 | 2015-09-09 |
Version 2 | 2015-10-26 (22:03) to 2015-10-27 (21:54) | No science change. CRID incremented to coincide with DOI correction for SPL2SMP and SPL3SMP. | Validated-Stage 1 (Report![]() |
R12160 | 2015-10-26 |
Version 2 |
2015-03-31 (16:28) to 2015-12-15 (03:37) |
Changes to this version include:
|
Validated-Stage 1 (Report![]() |
R12170 | 2015-10-30 |
Version 2 |
2015-12-17 (18:52) to 2015-12-31 (23:18) | No science change. CRID incremented to coincide with changes made for radar and SPL2SMP processing. | Validated-Stage 2 (Report![]() |
R12240 | 2015-12-16 |
Version 2 |
2015-12-31 (23:14) to 2016-04-21 (06:02) | Updated the radiometer reflector table to include the expected temperatures for the radome and reflector for 2016. | Validated-Stage 2 (Report![]() |
R12241 | 2016-01-06 |
Version 3 |
2015-03-31 (16:28) to 2016-12-07 (10:36) | Changes to this version include:
|
Validated-Stage 2 (Report![]() |
R13080 | 2016-04-21 |
Version 3 |
2016-12-07 (10:31) to 2017-04-24 (08:32) |
No science change. CRID incremented to coincide with the release of the following: enhanced products, including SPL1CTB_E, SPL2SMP_E, SPL3SMP_E, SPL3FTP_E (Version 1); SPL3FTP (Version 1); and SPL2SMP, SPL3SMP (Version 4). | Validated-Stage 2 (Report![]() |
R14010 | 2016-12-07 |
Version 3 |
2017-04-24 (08:28) to 2017-09-06 (16:52) |
Changes to this version include:
|
Validated-Stage 2 (Report![]() |
R15060 | 2017-04-24 |
Version 3 |
2017-09-03 (21:36) to 2017-11-14 (23:14) |
Changes to this version include:
|
Validated-Stage 2 (Report![]() |
R15152 | 2017-09-03 |
Version 3 | 2017-10-26 (00:04) to
2018-01-09 (21:35) |
No science change. CRID incremented to coincide with release of the new SMAP/Sentinel-1 L2 Radiometer/Radar 30-Second Scene 3 km EASE-Grid Soil Moisture (SPL2SMAP_S) product. | Validated-Stage 2 (Report![]() |
R15180 | 2017-10-26 |
Version 3 |
2017-12-10 (17:54) to 2018-03-14 (19:57) |
No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January and February 2018. | Validated-Stage 2 (Report![]() |
R15181 | 2018-01-09 |
Version 3 |
2018-03-14 (15:51) to 2018-06-04 (17:04) |
No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2018. | Validated-Stage 2 (Report![]() |
R15182 |
2018-03-14 |
Version 4 | 2015-03-31 (16:28) to
2018-06-14 (15:50) |
Changes to this version include:
|
Validated-Stage 2 (Report![]() |
R16000 | 2018-06-01 |
Version 4 | 2015-03-31 (16:28) to 2018-11-07 (17:54) | No science change. CRID incremented to coincide with updates to L1-L3 radiometer products. | Validated-Stage 2 (Report![]() |
R16010 | 2018-06-06 |
Version 4 | 2016-11-06 (23:50) to 2018-12-31 (20:46) | No science change. CRID incremented to coincide with TB and half-orbit correction for SPL3SMP, SPL2SMP_E, and SPL3SMP_E products. | Validated-Stage 2 (Report![]() |
R16020 | 2018-11-09 |
Version 4 | 2018-12-22 (00:00) to 2019-08-13 (23:05) |
On 2019-02-07, data files from 2018-12-22 to 2019-01-22 were reprocessed to include input sea surface temperature ancillary data that were inaccessible during the US government shutdown. Note that the lack of this input data had a minimal impact on brightness temperatures over the ocean. On 2018-12-31, data files from 2019-01-01 to present experienced no science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2019. |
Validated-Stage 2 (Report![]() |
R16022 | 2019-02-07 |
Version 4 | 2019-08-11 (07:50) to 2019-12-23 (21:26) | No science change. CRID incremented to coincide with the release of SPL2SMP V6, SPL2SMP_E V3, SPL3SMP V6, and SPL3SMP_E V3. | Validated-Stage 2 (Report![]() |
R16510 | 2019-08-15 |
Version 4 | 2019-12-21 (11:56) to 2020-08-27 (21:26) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2020. | Validated-Stage 2 (Report![]() |
R16515 | 2019-12-23 |
Version 5 | 2015-03-31 (16:28) to present |
Changes to this version include:
|
Validated-Stage 2 (Report![]() |
R17000 | 2020-09-01 |
SMAP L1C Radiometer Half-Orbit 36 km EASE-Grid Brightness Temperatures (SPL1CTB)
Major Version | Temporal Coverage | Version Changes | Maturity State | Composite Release ID (CRID) | Date Implemented |
---|---|---|---|---|---|
Version 1 |
2015-03-31 (16:29) to 2015-09-09 (21:04) | First public data release | Beta (Report![]() |
R11850 | 2015-07-31 |
Version 1 |
2015-08-02 (21:00) to 2015-10-26 (15:32) | No science change. CRID incremented to coincide with release of SPL2SMP V1 Beta and SPL3SMP V1 Beta data. | Beta (Report![]() |
R11920 | 2015-09-09 |
Version 2 | 2015-10-27 (07:04) to 2015-10-27 (21:54) | No science change. CRID incremented to coincide with DOI correction for SPL2SMP and SPL3SMP. | Validated-Stage 2 (Report![]() |
R12160 | 2015-10-27 |
Version 2 |
2015-03-31 (16:29) to 2015-12-15 (03:37) |
Changes to this version include:
|
Validated-Stage 2 (Report![]() |
R12170 | 2015-10-30 |
Version 2 |
2015-04-13 (00:41) to 2015-12-31 (23:18) | No science change. CRID incremented to coincide with changes made for radar and SPL2SMP processing. | Validated-Stage 2 (Report![]() |
R12240 | 2015-12-16 |
Version 2 |
2015-12-31 (23:14) to 2016-04-21 (06:02) | Updated the radiometer reflector table to include the expected temperatures for the radome and reflector for 2016. | Validated-Stage 2 (Report![]() |
R12241 | 2016-01-06 |
Version 3 |
2015-03-31 (16:28) to 2016-12-07 (00:45) | Changes to this version include:
|
Validated-Stage 2 (Report![]() |
R13080 | 2016-04-21 |
2015-03-31 (16:28) to 2017-04-23 (00:32) |
No science change. CRID incremented to coincide with the release of the following: enhanced products, including SPL1CTB_E, SPL2SMP_E, SPL3SMP_E, SPL3FTP_E (Version 1); SPL3FTP (Version 1); and SPL2SMP, SPL3SMP (Version 4). | Validated-Stage 2 (Report![]() |
R14010 | 2016-12-07 | |
2017-04-23 (00:28) to 2017-09-06 (16:52) |
Changes to this version include:
|
Validated-Stage 2 (Report![]() |
R15060 | 2017-04-24 | |
Version 3 |
2017-09-03 (21:36) to 2017-11-14 (23:14) |
Changes to this version include:
|
Validated-Stage 2 (Report![]() |
R15152 |
2017-09-03 |
Version 3 | 2017-10-26 (00:04) to 2018-01-08 (23:26) | No science change. CRID incremented to coincide with release of the new SMAP/Sentinel-1 L2 Radiometer/Radar 30-Second Scene 3 km EASE-Grid Soil Moisture (SPL2SMAP_S) product. | Validated-Stage 2 (Report![]() |
R15180 | 2017-10-26 |
Version 3 | 2017-12-10 (17:54) to 2018-03-14 (19:57) |
No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January and February 2018. |
Validated-Stage 2 (Report![]() |
R15181 | 2018-01-09 |
Version 3 | 2018-03-14 (15:58) to
2018-06-04 (17:04) |
No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2018. | Validated-Stage 2 (Report![]() |
R15182 | 2018-03-14 |
Version 4 | 2015-03-31 (16:28) to
2018-06-14 (15:50) |
Updated input SPL1BTB product with water correction applied, resulting in warmer TBs over land and cooler TBs over water. | Validated-Stage 2 (Report![]() |
R16000 | 2018-06-01 |
Version 4 | 2015-03-31 (16:28) to 2018-11-07 (17:54) | No science change. CRID incremented to coincide with updates to L1-L3 radiometer products. | Validated-Stage 2 (Report![]() |
R16010 | 2018-06-06 |
Version 4 | 2018-11-06 (23:50) to 2018-12-31 (20:46) | No science change. CRID incremented to coincide with TB and half-orbit correction for SPL3SMP, SPL2SMP_E, and SPL3SMP_E products. | Validated-Stage 2 (Report![]() |
R16020 | 2018-11-09 |
Version 4 | 2018-12-22 (00:00) to 2019-08-13 (00:07) |
On 2019-02-07, data files from 2018-12-22 to 2019-01-22 were reprocessed to include input sea surface temperature ancillary data that were inaccessible during the US government shutdown. Note that the lack of this input data had a minimal impact on brightness temperatures over the ocean. On 2018-12-31, data files from 2019-01-01 to present experienced no science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2019. |
Validated-Stage 2 (Report![]() |
R16022 | 2019-02-07 |
Version 4 | 2019-08-11 (07:50) to 2019-12-23 (21:26) | No science change. CRID incremented to coincide with the release of SPL2SMP V6, SPL2SMP_E V3, SPL3SMP V6, and SPL3SMP_E V3. | Validated-Stage 2 (Report![]() |
R16510 | 2019-08-15 |
Version 4 | 2019-12-21 (11:56) to 2020-08-27 (21:26) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2020. | Validated-Stage 2 (Report![]() |
R16515 | 2019-12-23 |
Version 5 | 2015-03-31 (16:28) to present |
Changes to this version include:
|
Validated-Stage 2 (Report![]() |
R17000 | 2020-09-01 |
SMAP Enhanced L1C Radiometer Half-Orbit 9 km EASE-Grid Brightness Temperatures (SPL1CTB_E)
Major Version | Temporal Coverage | Version Changes | Maturity State | Composite Release ID (CRID) | Date Implemented |
---|---|---|---|---|---|
2015-03-31 (16:28) to 2017-04-24 (00:20) |
First public data release | Validated-Stage1 (Report![]() |
R14010 |
2016-12-07 |
|
2017-04-24 (00:16) to 2017-09-06 (16:52) |
Changes to this version include:
|
Validated-Stage1 (Report![]() |
R15060 |
2017-04-24 |
|
Version 1 |
2017-09-03 (21:36) to 2017-11-14 (23:14) |
Changes to this version include:
|
Validated-Stage1 (Report![]() |
R15152 | 2017-09-03 |
Version 1 | 2017-10-26 (00:04) to
2018-01-08 (23:26) |
No science change. CRID incremented to coincide with release of the new SMAP/Sentinel-1 L2 Radiometer/Radar 30-Second Scene 3 km EASE-Grid Soil Moisture (SPL2SMAP_S) product. | Validated-Stage1 (Report![]() |
R15180 |
2017-10-26 |
Version 1 | 2017-12-10 (17:54) to 2018-03-14 (19:57) |
No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January and February 2018. |
Validated-Stage1 (Report![]() |
R15181 | 2018-01-09 |
Version 1 | 2018-03-14 (15:58) to
2018-06-04 (17:04) |
No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2018. | Validated-Stage1 (Report![]() |
R15182 | 2018-03-14 |
Version 2 |
2015-03-31 (16:28) to 2018-06-14 (13:22) |
Updated input SPL1BTB product with water correction applied, resulting in warmer TBs over land and cooler TBs over water. | Validated-Stage1 (Report![]() |
R16000 | 2018-06-01 |
Version 2 | 2015-03-31 (16:28) to 2018-11-07 (17:04) | No science change. CRID incremented to coincide with updates to L1-L3 radiometer products. | Validated-Stage1 (Report![]() |
R16010 | 2018-06-06 |
Version 2 | 2018-11-06 (23:50) to 2018-12-31 (20:46) | No science change. CRID incremented to coincide with TB and half-orbit correction for SPL3SMP, SPL2SMP_E, and SPL3SMP_E products. | Validated-Stage1 (Report![]() |
R16020 | 2018-11-09 |
Version 2 | 2018-12-22 (00:00) to 2019-08-13 (00:07) |
On 2019-02-07, data files from 2018-12-22 to 2019-01-22 were reprocessed to include input sea surface temperature ancillary data that were inaccessible during the US government shutdown. Note that the lack of this input data had a minimal impact on brightness temperatures over the ocean. On 2018-12-31, data files from 2019-01-01 to present experienced no science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2019. |
Validated-Stage1 (Report![]() |
R16022 | 2019-02-07 |
Version 2 | 2019-08-11 (07:50) to 2019-12-23 (21:26) | No science change. CRID incremented to coincide with the release of SPL2SMP V6, SPL2SMP_E V3, SPL3SMP V6, and SPL3SMP_E V3. | Validated-Stage1 (Report![]() |
R16510 | 2019-08-15 |
Version 2 | 2019-12-21 (11:56) to 2020-08-27 (21:26) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2020. | Validated-Stage1 (Report![]() |
R16515 | 2019-12-23 |
Version 3 | 2015-03-31 (16:28) to present |
Changes to this version include:
|
Validated-Stage1 (Report![]() |
R17000 | 2020-09-01 |
Level 2 (L2) SMAP Data
SMAP L2 Radiometer Half-Orbit 36 km EASE-Grid Soil Moisture (SPL2SMP)
Major Version | Temporal Coverage | Version Changes | Maturity State | Composite Release ID (CRID) | Date Implemented |
---|---|---|---|---|---|
Version 1 |
2015-09-09 (21:49) to 2015-10-25 (18:12) | First public data release | Beta (Report![]() |
R11920 | 2015-09-09 |
Version 2 |
2015-03-31 (17:18) to 2015-12-15 (03:37) |
Changes to this version include:
|
Beta (Report![]() |
R12170 | 2015-10-30 |
Version 2 |
2015-04-13 (00:41) to 2015-12-31 (23:18) |
Changes to input data processing to use the previous day's snow file if the current day is not available. | Beta (Report![]() |
R12240 | 2015-12-16 |
Version 2 |
2015-08-11 (00:03) to 2016-04-21 (03:38) | No science change. CRID incremented to coincide with an update to the radiometer reflector table SPL1BTB V2 and SPL1CTB V2. | Beta (Report![]() |
R12241 | 2016-01-06 |
Version 3 |
2015-03-31 (16:28) to 2016-12-07 (05:40) |
Changes to this version include:
|
Validated-Stage 2 (Report ![]() |
R13080 | 2016-04-21 |
Version 4 |
2015-03-31 (16:28) to 2017-04-23 (00:32) |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R14010 | 2016-12-07 |
Version 4 |
2017-04-23 (00:28) to 2017-09-01 (23:39) |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R15060 | 2017-04-24 |
Version 4 |
2017-09-02 (00:28) to 2017-10-25 (23:14) |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R15152 |
2017-09-02 |
Version 4 | 2017-10-26 (00:04) to
2018-01-08 (23:26) |
No science change. CRID incremented to coincide with release of the new SMAP/Sentinel-1 L2 Radiometer/Radar 30-Second Scene 3 km EASE-Grid Soil Moisture (SPL2SMAP_S) product. | Validated-Stage 3 (Report![]() |
R15180 | 2017-10-26 |
Version 4 | 2017-12-10 (17:54) to 2018-03-14 (07:39) |
No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January and February 2018. |
Validated-Stage 3 (Report![]() |
R15181 | 2018-01-09 |
Version 4 | 2018-03-14 (15:58) to 2018-06-04 (13:47) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2018. | Validated-Stage 3 (Report![]() |
R15182 | 2018-03-14 |
Version 5 | 2015-03-31 (16:28) to
2018-06-14 (07:38) |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R16000 | 2018-06-01 |
Version 5 | 2015-03-31 (16:28) to 2018-11-07 (15:26) | No science change. CRID incremented to coincide with updates to L1-L3 radiometer products. | Validated-Stage 3 (Report![]() |
R16010 | 2018-06-06 |
Version 5 | 2018-11-07 (23:50) to 2018-12-31 (07:38) | No science change. CRID incremented to coincide with TB and half-orbit correction for SPL3SMP, SPL2SMP_E, and SPL3SMP_E products. | Validated-Stage 3 (Report![]() |
R16020 | 2018-11-09 |
Version 5 | 2018-12-31 (00:15) to 2019-08-13 (14:43) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2019. | Validated-Stage 3 (Report![]() |
R16022 | 2018-12-31 |
Version 6 | 2015-03-31 (16:28) to 2019-12-23 (14:52) | Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R16510 | 2019-08-15 |
Version 6 | 2019-12-21 (11:56) to 2020-08-27 (08:18) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2020. | Validated-Stage 3 (Report![]() |
R16515 | 2019-12-23 |
Version 7 | 2015-03-31 (16:28) to 2020-11-30 (8:30:13) |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R17000 | 2020-09-01 |
SMAP Enhanced L2 Radiometer Half-Orbit 9 km EASE-Grid Soil Moisture (SPL2SMP_E)
Major Version | Temporal Coverage | Version Changes | Maturity State | Composite Release ID (CRID) | Date Implemented |
---|---|---|---|---|---|
2015-03-31 (16:28) to 2017-04-22 (23:43) |
First public data release | Validated-Stage 3 (Report![]() |
R14010 | 2016-12-07 | |
2017-04-22 (23:39) to 2017-09-05 (23:39) |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R15060 |
2017-04-24 |
|
Version 1 |
2017-09-03 (00:16) to 2017-10-25 (23:14) |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R15152 |
2017-09-03 |
Version 1 | 2017-10-26 (00:04) to 2018-01-08 (23:26) | No science change. CRID incremented to coincide with release of the new SMAP/Sentinel-1 L2 Radiometer/Radar 30-Second Scene 3 km EASE-Grid Soil Moisture (SPL2SMAP_S) product. | Validated-Stage 3 (Report![]() |
R15180 | 2017-10-26 |
Version 1 | 2017-12-10 (17:54) to 2018-03-14 (07:39) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January and February 2018. | Validated-Stage 3 (Report![]() |
R15181 | 2018-01-09 |
Version 1 | 2018-03-14 (15:58) to
2018-06-04 (13:47) |
No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2018. | Validated-Stage 3 (Report![]() |
R15182 | 2018-03-14 |
Version 2 |
2015-03-31 (16:28) to 2018-06-14 (07:38) |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R16000 | 2018-06-01 |
Version 2 | 2015-03-31 (16:28) to 2018-11-07 (07:14) | No science change. CRID incremented to coincide with updates to L1-L3 radiometer products. | Validated-Stage 3 (Report![]() |
R16010 | 2018-06-06 |
Version 2 | 2015-03-31 (16:28) to 2018-12-31 (07:38) | Corrects an issue that occurred during cold-sky maneuvers, when the spacecraft nadir angle changed beyond normal ranges, causing data processing to fail for approximately 30 half-orbits. Half-orbits were reprocessed using the Earth incidence angles of the footprints and by setting a threshold beyond which data are ignored. | Validated-Stage 3 (Report![]() |
R16020 | 2018-11-09 |
Version 2 | 2018-12-31 (00:15) to 2019-08-13 (14:43) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2019. | Validated-Stage 3 (Report![]() |
R16022 | 2018-12-31 |
Version 3 | 2015-03-31 (16:28) to 2019-12-23 (14:52) | Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R16510 | 2019-08-15 |
Version 3 | 2019-12-21 (11:56) to 2020-08-27 (08:18) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2020. | Validated-Stage 3 (Report![]() |
R16515 | 2019-12-23 |
Version 4 | 2015-03-31 (16:28) to present |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R17000 | 2020-09-01 |
SMAP L2 Radar Half-Orbit 3 km EASE-Grid Soil Moisture (SPL2SMA)
Major Version | Temporal Coverage | Version Changes | Maturity State | Composite Release ID (CRID) | Date Implemented |
---|---|---|---|---|---|
Version 2 |
2015-04-24 (17:19) to 2015-07-08 (00:19) | First public data release | Beta (Report![]() |
R12170 | 2015-11-03 |
Version 2 |
2015-04-13 (00:42) to 2015-04-24 (16:32) |
This version incorporates a radar calibration update to process data for 13-23 April 2015. |
Beta (Report![]() |
R12240 | 2016-01-13 |
Version 3 |
2015-04-13 (18:45) to 2015-07-07 (20:11) | Changes to this version include:
|
Validated-Stage 1 (Report![]() |
R13080 |
2016-04-21 |
SMAP L2 Radar/Radiometer Half-Orbit 9 km EASE-Grid Soil Moisture (SPL2SMAP)
Major Version | Temporal Coverage | Version Changes | Maturity State | Composite Release ID (CRID) | Date Implemented |
---|---|---|---|---|---|
Version 2 |
2015-04-24 (17:18) to 2015-07-07 (00:20) | First public data release | Beta (Report![]() |
R12170 | 2015-11-03 |
Version 2 |
2015-04-13 (00:41) to 2015-04-24 (16:33) |
This version incorporates a radar calibration update to process data for 13-23 April 2015 |
Beta (Report![]() |
R12240 | 2016-01-13 |
Version 2 | 2015-04-29 (03:58) to 2015-04-29 (04:51) | No science change. CRID incremented to coincide with an update to the radiometer reflector table SPL1BTB V2 and SPL1CTB V2. | Beta (Report![]() |
R12241 | 2016-04-29 |
Version 3 |
2015-04-13 (18:44) to 2015-07-07 (20:10) | Changes to this version include:
|
Validated-Stage 2 (Report![]() |
R13080 |
2016-04-21 |
SMAP/Sentinel-1 L2 Radiometer/Radar 30-Second Scene 3 km EASE-Grid Soil Moisture (SPL2SMAP_S)
Major Version | Temporal Coverage | Version Changes | Maturity State | Composite Release ID (CRID) | Date Implemented |
---|---|---|---|---|---|
Version 1 |
2015-04-01 (00:00) to 2018-01-08 (00:00) | First public data release | Beta (Report![]() |
R15180 | 2017-10-27 |
Version 1 | 2017-12-28 (00:00) to 2018-03-13 (00:00) |
No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January and February 2018. |
Beta (Report![]() |
R15181 | 2018-01-09 |
Version 1 | 2018-03-13 (00:00) to
2018-06-03 (00:00) |
No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2018. | Beta (Report![]() |
R15182 | 2018-03-14 |
Version 2 | 2015-04-01 (00:00) to 2018-11-06 (00:00) |
Changes to this version include:
|
Beta (Report![]() |
R16010 | 2018-06-18 |
Version 2 | 2018-11-04 (00:00) to 2018-12-30 (00:00) | No science change. CRID incremented to coincide with TB and half-orbit correction for SPL3SMP, SPL2SMP_E, and SPL3SMP_E products. | Beta (Report![]() |
R16020 | 2018-11-09 |
Version 2 | 2018-12-19 (00:00) to 2019-08-12 (22:54) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2019. | Beta (Report![]() |
R16022 | 2018-12-31 |
Version 2 | 2018-12-31 (01:24) to 2019-12-20 (23:30) | No science change. CRID incremented to coincide with the release of SPL2SMP V6, SPL2SMP_E V3, SPL3SMP V6, and SPL3SMP_E V3. | Beta (Report![]() |
R16510 | 2019-08-15 |
Version 2 | 2017-01-02 (03:03) to 2020-08-26 (07:10) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2020. | Beta (Report![]() |
R16515 | 2019-12-23 |
Version 3 | 2015-04-01 (00:00) to present |
Changes to this version include:
|
Beta (Report![]() |
R17000 | 2020-09-01 |
Level 3 (L3) SMAP Data
SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture (SPL3SMP)
Major Version | Temporal Coverage | Version Changes | Maturity State | Composite Release ID (CRID) | Date Implemented |
---|---|---|---|---|---|
Version 1 |
2015-09-10 (00:00) to 2015-10-24 (23:59) | First public data release | Beta (Report![]() |
R11920 | 2015-09-09 |
Version 2 |
2015-03-31 (00:00) to 2015-12-15 (23:59) |
Changes to this version include:
|
Beta (Report![]() |
R12170 | 2015-10-30 |
Version 2 |
2015-04-13 (00:00) to 2015-12-31 (23:59) | Change to the SPL2SMP V2 input data to use the previous day's snow file if the current day is not available. | Beta (Report![]() |
R12240 | 2015-12-16 |
Version 2 |
2016-01-01 (00:00) to 2016-04-20 (23:59) | No science change. CRID incremented to coincide with an update to the radiometer reflector table SPL1BTB V2 and SPL1CTB V2. | Beta (Report![]() |
R12241 | 2015-01-06 |
Version 3 |
2015-03-31 (00:00) to 2016-12-06 (23:59) | Changes to this version include:
|
Validated-Stage 2 (Report ![]() |
R13080 | 2016-04-21 |
Version 4 |
2015-03-31 (00:00) to 2017-04-23 (23:59) |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R14010 | 2016-12-07 |
2017-04-23 (00:00) to 2017-09-04 (00:00) |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R15060 | 2017-04-24 | |
Version 4 |
2017-09-02 (00:00) to 2017-10-25 (00:00) |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R15152 | 2017-09-02 |
Version 4 | 2017-10-26 (00:00) to
2018-01-08 (00:00) |
No science change. CRID incremented to coincide with release of the new SMAP/Sentinel-1 L2 Radiometer/Radar 30-Second Scene 3 km EASE-Grid Soil Moisture (SPL2SMAP_S) product. | Validated-Stage 3 (Report![]() |
R15180 | 2017-10-26 |
Version 4 | 2018-01-09 (00:00) to 2018-03-13 (00:00) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January and February 2018. | Validated-Stage 3 (Report![]() |
R15181 | 2018-01-09 |
Version 4 | 2018-03-13 (00:00) to
2018-06-03 (00:00) |
No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2018. | Validated-Stage 3 (Report![]() |
R15182 | 2018-03-14 |
Version 5 | 2015-03-31 (00:00) to
2018-06-13 (00:00) |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R16000 | 2018-06-01 |
Version 5 | 2015-03-31 (00:00) to 2018-11-06 (00:00) | No science change. CRID incremented to coincide with updates to L1-L3 radiometer products. | Validated-Stage 3 (Report![]() |
R16010 | 2018-06-06 |
Version 5 | 2015-03-31 (00:00) to 2018-12-31 (00:00) | Changes to this version constitute a bug fix. The surface-uncorrected horizontally polarized brightness temperature data value was inadvertently assigned to the surface-uncorrected vertically polarized brightness temperature data field. This has been corrected. | Validated-Stage 3 (Report![]() |
R16020 | 2018-11-09 |
Version 5 | 2018-12-31 (00:00) to 2019-08-12 (23:59) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2019. | Validated-Stage 3 (Report![]() |
R16022 | 2018-12-31 |
Version 6 | 2015-03-31 (00:00) to 2019-12-21 (23:59) | Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R16510 | 2019-08-15 |
Version 6 | 2019-12-21 (00:00) to 2020-08-27 (00:00) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2020. | Validated-Stage 3 (Report![]() |
R16515 | 2019-12-23 |
Version 7 | 2015-03-31 (00:00) to present |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R17000 | 2020-09-01 |
SMAP Enhanced L3 Radiometer Global Daily 9 km EASE-Grid Soil Moisture (SPL3SMP_E)
Major Version | Temporal Coverage | Version Changes | Maturity State | Composite Release ID (CRID) | Date Implemented |
---|---|---|---|---|---|
2015-03-31 (00:00) to 2017-04-22 (23:59) |
First public data release | Validated-Stage 3 (Report![]() |
R14010 | 2016-12-07 | |
2017-04-23 (00:00) to 2017-09-05 (00:00) |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R15060 | 2017-04-24 | |
Version 1 |
2017-09-03 (00:00) to 2017-10-25 (00:00) |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R15152 |
2017-09-03 |
Version 1 | 2017-10-26 (00:00) to 2018-01-08 (00:00) | No science change. CRID incremented to coincide with release of the new SMAP/Sentinel-1 L2 Radiometer/Radar 30-Second Scene 3 km EASE-Grid Soil Moisture (SPL2SMAP_S) product. | Validated-Stage 3 (Report![]() |
R15180 | 2017-10-26 |
Version 1 |
2018-01-09 (00:00) to 2018-03-13 (00:00) |
No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January and February 2018. |
Validated-Stage 3 (Report![]() |
R15181 | 2018-01-09 |
Version 1 | 2018-03-13 (00:00) to 2018-06-03 (00:00) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2018. | Validated-Stage 3 (Report![]() |
R15182 | 2018-03-14 |
Version 2 | 2015-03-31 (00:00) to
2018-06-13 (00:00) |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R16000 | 2018-06-01 |
Version 2 | 2015-03-31 (00:00) to 2018-11-06 (00:00) | No science change. CRID incremented to coincide with updates to L1-L3 radiometer products. | Validated-Stage 3 (Report![]() |
R16010 | 2018-06-06 |
Version 2 | 2015-03-31 (00:00) to 2018-12-30 (00:00) |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R16020 | 2018-11-09 |
Version 2 | 2018-12-31 (00:00) to 2019-08-12 (23:59) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2019. | Validated-Stage 3 (Report![]() |
R16022 | 2018-12-31 |
Version 3 | 2015-03-31 (00:00) to 2019-12-21 (23:59) | Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R16510 | 2019-08-15 |
Version 3 | 2019-12-21 (00:00) to 2020-08-27 (00:00) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2020. | Validated-Stage 3 (Report![]() |
R16515 | 2019-12-23 |
Version 4 | 2015-03-31 (00:00) to present |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R17000 | 2020-09-01 |
SMAP L3 Radar Global Daily 3 km EASE-Grid Soil Moisture (SPL3SMA)
Major Version | Temporal Coverage | Version Changes | Maturity State | Composite Release ID (CRID) | Date Implemented |
---|---|---|---|---|---|
Version 2 |
2015-04-25 (00:00) to 2015-07-07 (23:59) | First public data release | Beta (Report![]() |
R12170 | 2015-11-03 |
Version 2 |
2015-04-13 (00:00) to 2015-04-24 (23:59) |
This version incorporates a radar calibration update to process data for 13-23 April 2015. |
Beta (Report![]() |
R12240 | 2016-01-13 |
Version 3 |
2015-04-13 (00:00) to present | Changes to this version include:
|
Validated-Stage 1 (Report![]() |
R13080 | 2016-04-21 |
SMAP L3 Radar/Radiometer Global Daily 9 km EASE-Grid Soil Moisture (SPL3SMAP)
Major Version | Temporal Coverage | Version Changes | Maturity State | Composite Release ID (CRID) | Date Implemented |
---|---|---|---|---|---|
Version 2 |
2015-04-25 (00:00) to 2015-07-07 (23:59) | First public data release | Beta (Report![]() |
R12170 | 2015-11-03 |
Version 2 |
2015-04-13 (00:00) to 2015-04-24 (23:59) |
This version incorporates a radar calibration update to process data for 13-23 April 2015. |
Beta (Report![]() |
R12240 | 2016-01-13 |
Version 2 | 2015-04-29 (03:58) to 2015-04-29 (04:51) | No science change. CRID incremented to coincide with an update to the radiometer reflector table SPL1BTB V2 and SPL1CTB V2. | Beta (Report![]() |
R12241 | 2015-04-29 |
Version 3 |
2015-04-13 (00:00) to present | Changes to this version include:
|
Validated-Stage 2 (Report![]() |
R13080 |
2016-04-21 |
SMAP L3 Radar Northern Hemisphere Daily 3 km EASE-Grid Freeze/Thaw State (SPL3FTA)
Major Version | Temporal Coverage | Version Changes | Maturity State | Composite Release ID (CRID) | Date Implemented |
---|---|---|---|---|---|
Version 2 |
2015-04-25 (00:00) to 2015-07-07 (23:59) | First public data release | Beta (Report![]() |
R12170 | 2015-11-03 |
Version 2 |
2015-04-13 (00:00) to 2015-04-24 (23:59) |
This version incorporates a radar calibration update to process data for 13-23 April 2015. |
Beta (Report![]() |
R12240 | 2016-01-13 |
Version 3 |
2015-04-13 (00:00) to
2015-07-07 (00:00) |
Changes to this version include:
|
Validated-Stage 2 (Report ![]() |
R13080 | 2016-04-21 |
SMAP L3 Radiometer Northern Hemisphere Daily 36 km EASE-Grid Freeze/Thaw State (SPL3FTP)
Major Version | Temporal Coverage | Version Changes | Maturity State | Composite Release ID (CRID) | Date Implemented |
---|---|---|---|---|---|
Version 1 |
2015-03-31 (00:00) to
2017-04-22 (23:59) |
First public data release | Validated-Stage 3 (Report![]() |
R14010 | 2016-12-07 |
Version 1 |
2017-04-23 (00:00) to 2017-09-05 (00:00) |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R15060 | 2017-04-24 |
Version 1 |
2017-09-06 (00:00) to 2017-10-25 (00:00) |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R15152 | 2017-09-06 |
Version 1 | 2017-10-26 (00:00) to 2018-01-08 (00:00) | No science change. CRID incremented to coincide with release of the new SMAP/Sentinel-1 L2 Radiometer/Radar 30-Second Scene 3 km EASE-Grid Soil Moisture (SPL2SMAP_S) product. | Validated-Stage 3 (Report![]() |
R15180 | 2017-10-26 |
Version 1 |
2018-01-09 (00:00) to 2018-03-13 (00:00) |
No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January and February 2018. |
Validated-Stage 3 (Report![]() |
R15181 | 2018-01-09 |
Version 1 | 2018-03-13 (00:00) to
2018-06-03 (00:00) |
No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2018. | Validated-Stage 3 (Report![]() |
R15182 | 2018-03-14 |
Version 2 | 2015-03-31 (00:00) to 2018-06-13 (00:00) |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R16000 | 2018-06-01 |
Version 2 | 2015-03-31 (00:00) to 2018-11-06 (00:00) |
No science change. CRID incremented to coincide with updates to L1-L3 radiometer products. In addition, /Metadata/GridSpatialRepresentation and /Metadata/Extent structures modified to include definitions for both Polar and Global grid metadata parameters. |
Validated-Stage 3 (Report![]() |
R16010 | 2018-06-06 |
Version 2 | 2018-11-03 (00:00) to 2018-12-30 (00:00) | No science change. CRID incremented to coincide with TB and half-orbit correction for SPL3SMP, SPL2SMP_E, and SPL3SMP_E products. | Validated-Stage 3 (Report![]() |
R16020 | 2018-11-09 |
Version 2 | 2018-12-31 (00:00) to 2019-08-12 (23:59) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2019. | Validated-Stage 3 (Report![]() |
R16022 | 2018-12-31 |
Version 2 | 2019-08-13 (00:00) to 2019-12-21 (23:59) |
No science change. CRID incremented to coincide with the release of SPL2SMP V6, SPL2SMP_E V3, SPL3SMP V6, and SPL3SMP_E V3. |
Validated-Stage 3 (Report![]() |
R16510 | 2019-08-15 |
Version 2 | 2019-12-21 (00:00) to 2020-08-27 (08:18) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2020. | Validated-Stage 3 (Report![]() |
R16515 | 2019-12-23 |
Version 3 | 2015-03-31 (00:00) to present |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R17000 | 2020-09-01 |
SMAP Enhanced L3 Radiometer Northern Hemisphere Daily 9 km EASE-Grid Freeze/Thaw State (SPL3FTP_E)
Major Version | Temporal Coverage | Version Changes | Maturity State | Composite Release ID (CRID) | Date Implemented |
---|---|---|---|---|---|
Version 1 | 2015-03-31 (00:00) to 2017-04-23 (23:59) | First public data release |
Validated-Stage 3 (Report |
R14010 | 2016-12-07 |
Version 1 | 2017-04-24 (00:00) to
2017-09-05 (00:00) |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R15060 | 2017-04-24 |
Version 1 |
2017-09-06 (00:00) to 2017-10-25 (00:00) |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R15152 | 2017-09-06 |
Version 1 | 2017-10-26 (00:00) to 2018-01-08 (00:00) | No science change. CRID incremented to coincide with release of the new SMAP/Sentinel-1 L2 Radiometer/Radar 30-Second Scene 3 km EASE-Grid Soil Moisture (SPL2SMAP_S) product. | Validated-Stage 3 (Report![]() |
R15180 | 2017-10-26 |
Version 1 |
2018-01-09 (00:00) to 2018-03-13 (00:00) |
No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January and February 2018. |
Validated-Stage 3 (Report![]() |
R15181 | 2018-01-09 |
Version 1 | 2018-03-13 (00:00) to 2018-06-03 (00:00) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2018. | Validated-Stage 3 (Report![]() |
R15182 | 2018-03-14 |
Version 2 | 2015-03-31 (00:00) to 2018-06-13 (00:00) |
Changes to this version include:
|
Validated-Stage 3 (Report![]() |
R16000 | 2018-06-01 |
Version 2 | 2015-03-31 (00:00) to 2018-11-06 (00:00) | No science change. CRID incremented to coincide with updates to L1-L3 radiometer products. In addition, /Metadata/GridSpatialRepresentation and /Metadata/Extent structures modified to include definitions for both Polar and Global grid metadata parameters. | Validated-Stage 3 (Report![]() |
R16010 | 2018-06-06 |
Version 2 | 2018-11-03 (00:00) to 2018-12-30 (00:00) | No science change. CRID incremented to coincide with TB and half-orbit correction for SPL3SMP, SPL2SMP_E, and SPL3SMP_E products. | Validated-Stage 3 (Report![]() |
R16020 | 2018-11-09 |
Version 2 | 2018-12-31 (00:00) to 2019-08-12 (23:59) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2019. | Validated-Stage 3 (Report![]() |
R16022 | 2018-12-31 |
Version 2 | 2019-08-13 (00:00) to 2019-12-21 (23:59) |
No science change. CRID incremented to coincide with the release of SPL2SMP V6, SPL2SMP_E V3, SPL3SMP V6, and SPL3SMP_E V3. |
Validated-Stage 3 (Report![]() |
R16510 | 2019-08-15 |
Version 2 | 2019-12-22 (00:00) to 2020-08-27 (00:00) | No science change. CRID incremented to coincide with an update to the radiometer reflector ancillary file for January through December 2020. | Validated-Stage 3 (Report![]() |
R16515 | 2019-12-23 |
Version 3 | 2015-03-31 (00:00) to present |
Changes to this version include:
|
Validated-Stage 3 | R17000 | 2020-09-01 |
Level 4 (L4) SMAP Data
SMAP L4 Global 3-hourly 9 km Surface and Rootzone Soil Moisture Analysis Update (SPL4SMAU)
Major Version | Temporal Coverage | Version Changes | Maturity State | Science Version ID | Date Implemented |
---|---|---|---|---|---|
Version 1 |
2015-03-31 (01:30) to 2015-10-26 (01:30) | First public data release | Beta (Report![]() |
Vb1010 | 2015-10-30 |
Version 1 |
2015-10-26 (01:30) to 2016-04-22 (01:30) |
Input data source changed from SPL1CTB V1 Beta data to SPL1CTB V2 Validated-Stage 1 data. |
Beta (Report![]() |
Vb1012 | 2015-10-30 |
Version 2 |
2015-03-31 (01:30) to 2016-12-07 (10:31) | Changes to this version include:
|
Validated-Stage 2 (Report ![]() |
Vv2010 |
2016-04-21 |
Version 2 | 2015-03-31 (01:30) to 2017-07-15 (01:30) | No science change. CRID incremented to coincide with the release of the following: enhanced products, including SPL1CTB_E, SPL2SMP_E, SPL3SMP_E, SPL3FTP_E (Version 1); SPL3FTP (Version 1); and SPL2SMP, SPL3SMP (Version 4). | Validated-Stage 2 (Report ![]() |
Vv2030 | 2016-12-07 |
Version 3 | 2015-03-31 (01:30) to
2018-06-04 (22:30) |
Changes to this version include:
|
Validated-Stage 2 (Report ![]() |
Vv3030 | 2017-07-17 |
Version 4 | 2018-06-05 (01:30) to 2018-10-13 (00:00) |
Changes to this version include:
|
Validated-Stage 2 (Report ![]() |
Vv4010 | 2018-06-14 |
Version 4 | 2015-03-31 (01:30) to 2018-06-05 (00:00) | Reprocessed data from 2015-03-31 through 2018-06-05 using OASIS Level-1C data as input. OASIS data are processed by the Science Data System (SDS) on the Offline Algorithm Staging and Input System (OASIS). | Validated-Stage 2 (Report ![]() |
Vv4011 | 2018-06-14 |
Version 4 | 2015-03-31 (01:30) to
2020-08-27 (01:30:00) |
Reprocessed data from 2015-03-31 using published Version 4 Radiometer Brightness Temperatures (SPL1CTB) as input.
Continued as forward-processing stream from 2018-06-05 (01:30). |
Validated-Stage 2 (Report ![]() |
Vv4030 | 2018-10-03 |
Version 5 | 2015-03-31 (01:30) to 2020-08-26 (01:30) | Reprocessed data from 2015-03-31 through 2020-08-26 using OASIS Level-1C data as input. OASIS data are processed by the Science Data System (SDS) on the Offline Algorithm Staging and Input System (OASIS). See Vv5014 for Version 5 change log. | Validated-Stage 3 | Vv5012 | 2020-09-01 |
Version 5 | 2020-08-27 (01:30) to present |
Forward-processing data using published Version 5 (“R17”) Radiometer Brightness Temperatures (SPL1CTB) as input. Otherwise, seamless continuation of Vv5012. Changes to this and Vv5012 include:
|
Validated-Stage 3 | Vv5014 | 2020-09-01 |
Version 5 | 2015-03-31 (01:30) to present |
Reprocessed data from 2015-03-31 using published Version 5 ("R17") Radiometer Brightness Temperatures (SPLCTB) as input. Changes to this version include:
|
Validated - Stage 3 | Vv5030 | 2020-01-06 |
SMAP L4 Global 3-hourly 9 km Surface and Rootzone Soil Moisture Geophysical Data (SPL4SMGP)
Major Version | Temporal Coverage | Version Changes | Maturity State | Science Version ID | Date Implemented |
---|---|---|---|---|---|
Version 1 |
2015-03-31 (00:00) to 2015-10-26 (00:00) | First public data release | Beta (Report![]() |
Vv1010 | 2015-10-30 |
Version 1 |
2015-10-26 (00:00) to 2016-04-22 (00:00) |
Input data source changed from SPL1CTB V1 Beta data to SPL1CTB V2 Validated-Stage 1 data. |
Beta (Report![]() |
Vv1012 | 2015-10-30 |
Version 2 |
2015-03-31 (00:00) to 2016-12-07 (10:31) | Changes to this version include:
|
Validated-Stage 2 (Report ![]() |
Vv2010 | 2016-04-21 |
Version 2 | 2015-03-31 (00:00) to 2017-07-15 (00:00) |
No science change. CRID incremented to coincide with the release of the following: enhanced products, including SPL1CTB_E, SPL2SMP_E, SPL3SMP_E, SPL3FTP_E (Version 1); SPL3FTP (Version 1); and SPL2SMP, SPL3SMP (Version 4). |
Validated-Stage 2 |
Vv2030 |
2016-12-07 |
2015-03-31 (00:00) to 2018-06-04 (21:00) |
Changes to this version include:
|
Validated-Stage 2 (Report ![]() |
Vv3030 | 2017-07-17 | |
Version 4 | 2018-06-05 (00:00) to 2018-10-12 (22:30) |
Changes to this version include:
|
Validated-Stage 2 (Report ![]() |
Vv4010 | 2018-06-14 |
Version 4 | 2015-03-31 (00:00) to 2018-06-04 (22:30) | Reprocessed data from 2015-03-31 through 2018-06-04 using OASIS Level-1C data as input. OASIS data are processed by the Science Data System (SDS) on the Offline Algorithm Staging and Input System (OASIS). | Validated-Stage 2 (Report ![]() |
Vv4011 | 2018-06-14 |
Version 4 | 2015-03-31 (00:00) to 27 August 2020 | Reprocessed data from 2015-03-31 using published Version 4 Radiometer Brightness Temperatures (SPL1CTB) as input.
Continued as forward-processing stream from 2018-06-05 (01:30) |
Validated-Stage 2 (Report ![]() |
Vv4030 | 2018-10-03 |
Version 5 | 2015-03-31 (00:00) to 2020-08-26 (23:59) | Reprocessed data from 2015-03-31 through 2020-08-26 using OASIS Level-1C data as input. OASIS data are processed by the Science Data System (SDS) on the Offline Algorithm Staging and Input System (OASIS). | Validated-Stage 3 | Vv5012 | 2020-09-01 |
Version 5 | 2020-08-27 (00:00) to present |
Forward-processing data using published Version 5 (“R17”) Radiometer Brightness Temperatures (SPL1CTB) as input. Otherwise, seamless continuation of Vv5012. Changes to this version include:
|
Validated-Stage 3 | Vv5014 | 2020-09-01 |
2015-03-31 (01:30) to present |
Reprocessed data from 2015-03-31 using published Version 5 ("R17") Radiometer Brightness Temperatures (SPLCTB) as input. Changes to this version include:
|
Validated - Stage 3 |
Vv5030 |
2020-01-06 |
SMAP L4 Global 9 km Surface and Rootzone Soil Moisture Land Model Constants (SPL4SMLM)
Major Version | Temporal Coverage | Version Changes | Maturity State | Science Version ID | Date Implemented |
---|---|---|---|---|---|
Version 1 |
2015-03-31 (00:00) to 2015-10-26 (00:00) | First public data release | Beta (Report![]() |
Vb1010 | 2015-10-30 |
Version 1 |
2015-10-26 (00:00) to 2016-04-22 (00:00) |
Input data source changed from SPL1CTB V1 Beta data to SPL1CTB V2 Validated-Stage 1 data. |
Beta (Report![]() |
Vb1012 | 2015-10-30 |
Version 2 |
2015-03-31 (00:00) to 2016-12-07 (10:31) | Updated to coincide changes to SPL4SMAU V1 and SPL4SMGP V1. | Validated-Stage 2 (Report ![]() |
Vv2010 | 2016-04-21 |
Version 2 | 2015-03-31 (00:00) to 2017-07-15 (00:00) | No science change. CRID incremented to coincide with the release of the following: enhanced products, including SPL1CTB_E, SPL2SMP_E, SPL3SMP_E, SPL3FTP_E (Version 1); SPL3FTP (Version 1); and SPL2SMP, SPL3SMP (Version 4). | Validated-Stage 2 (Report ![]() |
Vv2030 | 2016-12-07 |
Version 3 | 2015-03-31 (00:00) to 2018-06-04 (21:00) |
Changes to this version include:
|
Validated-Stage 2 (Report ![]() |
Vv3030 | 2017-07-17 |
Version 4 | 2015-06-05 (00:00) to 2018-10-13 (00:00) |
Changes to this version include:
|
Validated-Stage 2 (Report ![]() |
Vv4010 | 2018-06-14 |
Version 4 | 2015-03-31 (00:00) to 2018-06-05 (00:00) | Reprocessed data from 2015-03-31 through 2018-06-05 using OASIS Level-1C data as input. OASIS data are processed by the Science Data System (SDS) on the Offline Algorithm Staging and Input System (OASIS). | Validated-Stage 2 (Report ![]() |
Vv4011 | 2018-06-14 |
Version 4 | 2015-03-31 (00:00) to 27 August 2020 | Reprocessed data from 2015-03-31 using published Version 4 Radiometer Brightness Temperatures (SPL1CTB) as input.
Continued as forward-processing stream from 2018-06-05 (01:30) |
Validated-Stage 2 (Report ![]() |
Vv4030 | 2018-10-03 |
Version 5 | 2015-03-31 (00:00) to 2020-08-26 (23:59) | Reprocessed data from 2015-03-31 through 2020-08-26 using OASIS Level-1C data as input. OASIS data are processed by the Science Data System (SDS) on the Offline Algorithm Staging and Input System (OASIS). | Validated-Stage 3 | Vv5012 | 2020-09-01 |
Version 5 | 2020-08-27 (00:00) to present (time-invariant) |
Forward-processing data using published Version 5 (“R17”) Radiometer Brightness Temperatures (SPL1CTB) as input. Otherwise, seamless continuation of Vv5012. Changes to this version include:
|
Validated-Stage 3 | Vv5014 | 2020-09-01 |
2015-03-31 (01:30) to present |
Reprocessed data from 2015-03-31 using published Version 5 ("R17") Radiometer Brightness Temperatures (SPLCTB) as input. Changes to this version include:
|
Validated - Stage 3 |
Vv5030 |
2020-01-06 |
SMAP L4 Global Daily 9 km Carbon Net Ecosystem Exchange (SPL4CMDL)
Major Version | Temporal Coverage | Version Changes | Maturity State | Science Version ID | Date Implemented |
---|---|---|---|---|---|
Version 1 | 2015-04-13 (00:00) to 2016-04-21 (00:00) | First public data release | Beta (Report![]() |
Vb1010 | 2015-10-30 |
Version 2 |
2015-03-31 (00:00) to 2016-01-16 (23:59) |
Changes to this version include:
|
Validated-Stage 2 (Report ![]() |
Vv2010 | 2016-04-21 |
Version 2 | 2015-03-31 (00:00) to 2016-03-29 (00:00) | No science change. CRID incremented to coincide with the release of the following: enhanced products, including SPL1CTB_E, SPL2SMP_E, SPL3SMP_E, SPL3FTP_E (Version 1); SPL3FTP (Version 1); and SPL2SMP, SPL3SMP (Version 4). | Validated-Stage 2 (Report ![]() |
Vv2040 | 2016-12-07 |
Version 2 | 2015-03-31 (00:00) to 2017-07-11 (00:00) | Change involves modification to the L4C preprocessor to allow for ingest of MODIS Collection 6 fPAR inputs in response to planned termination of the MODIS Collection 5 stream from the LPDAAC. | Validated-Stage 2 (Report ![]() |
Vv2043 | 2017-03-30 |
Version 3 | 2015-03-31 (00:00) to
2018-06-04 (00:00) |
Changes to this version include:
|
Validated-Stage 2 (Report ![]() |
Vv3040 | 2017-07-17 |
Version 4 | 2015-03-31 (00:00) to 2018-10-12 (00:00) |
Changes to this version largely affect model inputs and ancillary files rather than changes to the internal model structure or code. Note that Version 4 is slightly better than Version 3 in RMSE terms, with improvement generally larger for drier sites. Specific changes include:
|
Validated-Stage 2 (Report ![]() |
Vv4020 | 2018-06-14 |
Version 4 | 2015-03-31 (00:00) to 2018-06-04 (00:00) | Reprocessed data from 2015-03-31 using Version 4 (Vv4011) SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data (SPL4SMGP) as input. | Validated-Stage 2 (Report ![]() |
Vv4021 | 2018-06-14 |
Version 4 | 2015-03-31 (00:00) to 2020-08-27 (00:00) |
Reprocessed data from 2015-03-31 using Version 4 (Vv4030) SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data (SPL4SMGP) as input. Continued as forward-processing stream from 2018-06-05 (01:30) Changes to this version include:
|
Validated-Stage 2 (Report ![]() |
Vv4040 | 2018-11-05 |
Version 5 | 2015-03-31 (00:00) to 2020-08-26 (23:59) | Reprocessed data from 2015-03-31 to 2020-08-26 using Version 5 (Vv5012) SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data (SPL4SMGP) as input | Validated-Stage 3 | Vv5022 | 2020-09-01 |
Version 5 | 2020-08-27 (00:00) to present |
Forward-processing data using published Version 5 (Vv5014) SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data (SPL4SMGP) as input. Otherwise, seamless continuation of Vv5022. Changes to this version primarily represent changes to the model inputs and model Biome Properties Look-up Table (BPLUT) calibration rather than changes to the internal model structure or code. The Version 5 product accuracy and performance is largely consistent with Version 4. Specific changes include:
|
Validated-Stage 3 | Vv5024 | 2020-09-01 |
2015-03-31 (01:30) to present |
Reprocessed data from 2015-03-31 using published Version 5 (Vv5030) SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data (SPL4SMGP) as input. Changes to this version include:
|
Validated - Stage 3 |
Vv5040 |
2020-01-06 |
Naming Conventions
Major Version
Major versions indicate the Series- or Collection-level major version of SMAP data products. Major versions signify that one or more changes have been made that caused a scientific change in the data, including:
- Change of input data used
- Change to algorithm or processing software
- Significant change to file-level metadata
Major version changes typically result in a reprocessing of the entire time series. As shown in Figure 1, the major version ID is located in SMAP HDF5 (.h5) data files within the DatasetIdentification group.
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To find the major version of a SMAP data product, navigate to DatasetIdentification within the Metadata group of any SMAP HDF5 (.h5) data file. The ECSVersionID = 004 indicates that these are Version 4 data.
Composite Release IDs (CRIDs)
SMAP Level-1 through Level-3 data file names include a Composite Release ID (CRID) that represents changes to any data processing condition that might impact SMAP products. The CRID incorporates algorithm, software, and other parameters involved in data processing. Note: The major version does not necessarily coincide with the CRID major version.
Files are named according to the following convention, with the CRID shown in bold:
SMAP_L1A_RADIOMETER_[Orbit#]_[A/D]_yyyymmddThhmmss_RLVvvv_NNN.[ext]
Where:
Variable | Description |
---|---|
R | Release |
L | Launch Indicator (1: SMAP Standard Data) |
V | 1-Digit CRID Major Version Number |
vvv | 3-Digit CRID Minor Version Number |
Science Version IDs
SMAP Level-4 data file names include a Science Version ID that, like the Composite Release ID for Level-1 through -3 data, represents changes to any data processing condition that might impact SMAP product results.
Files are named similar to the following convention, with the Science Version ID shown in bold:
SMAP_L4_C_MDL_yyyymmddThhmmss_VLMmmm_NNN.[ext]
Where:
Variable | Description |
---|---|
V | Science Version |
L | Launch Indicator (b: Beta-quality data, v: Validated data) |
M | 1-Digit Major Science Version Number |
mmm | 3-Digit Minor Science Version Number |
Maturity States
- Beta — Indicates data sets using a developing algorithm with updates anticipated.
- Validated — Data sets are upgraded to Validated once the Beta algorithm is verified by the algorithm team and validated by the validation team.
Validation Stages
Additionally, a stage (1, 2, or 3) may be appended to Validated product maturity codes. The following table describes the validation stages.
Validation Stage | Description |
---|---|
Stage 1 | Product accuracy is estimated using a small number of independent measurements obtained from selected locations, time periods, and ground-truth/field program efforts. |
Stage 2 | Product accuracy is assessed over a widely distributed set of locations and time periods via several ground-truth and validation efforts. |
Stage 3 | Product accuracy is assessed, and the uncertainties in the product are well established via independent measurements made in a systematic and statistically robust way that represents global conditions. |
Temporal Coverage
Dates
All dates on this page are listed as four-digit year followed by two-digit month and two-digit day, such as 2015-12-31.
Times
Times are listed as two-digit hour followed by two-digit minute , such as 17:24. Times are in Coordinated Universal Time (UTC), which is also known as Greenwich Mean Time (GMT) and/or "Z" or "Zulu Time."