Near-Real-Time DMSP SSM/I-SSMIS Daily Polar Gridded Sea Ice Concentrations  View Catalog Page
Metadata Entity Set Information:
Language:
eng; usa
Character Set:
Value: UTF8
CodeList: MD_CharacterSetCode
Hierarchy Level:
Value: dataset
CodeList: MD_ScopeCode
Hierarchy Level Name:
Near-Real-Time DMSP SSM/I-SSMIS Daily Polar Gridded Sea Ice Concentrations
Contact:
Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199 x
Contact Address:
Delivery Point: CIRES, 449 UCB
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org
Contact Role:
Value: pointOfContact
CodeList: CI_RoleCode
Date Stamp:
2013-05-06
Metadata Standard Name:
ISO 19115 Geographic Information - Metadata First Edition
Metadata Standard Version:
ISO 19115:2003
Dataset URI:
http://nsidc.org/data/nsidc-0081.html
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Data Identification Information:
Citation:
Citation Information:
Title: Near-Real-Time DMSP SSM/I-SSMIS Daily Polar Gridded Sea Ice Concentrations
Date:
Date: 1999
Date Type:
Value: publication
CodeList: CI_DateTypeCode
Edition Date: 1999-01-01
Identifier: NSIDC-0081
Cited Responsible Party: Responsible Party:
Individual Name: NSIDC DAAC User Services
Organization Name: NASA DAAC at the National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org/daac/index.html
Contact Role:
Value: custodian
CodeList: CI_RoleCode
Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org
Contact Role:
Value: custodian
CodeList: CI_RoleCode
Abstract:
This data set provides a near-real-time (NRT) map of sea ice concentrations for both the Northern and Southern Hemispheres. The near-real-time passive microwave brightness temperature data are acquired with the Special Sensor Microwave Imager/Sounder (SSMIS) on board the Defense Meteorological Satellite Program (DMSP) F17 satellite. The SSMIS instrument is the next generation Special Sensor Microwave/Imager (SSM/I) instrument. SSMIS data are received daily from the Comprehensive Large Array-data Stewardship System (CLASS) at the National Oceanic and Atmospheric Administration (NOAA) and are gridded onto a polar stereographic grid. Investigators generate sea ice concentrations from these data using the NASA Team algorithm.
These data are stored as one-byte flat scaled binary arrays with one byte per pixel, at a resolution of 25 km. For each data file, a corresponding PNG image file is provided. These data are available via FTP for the most recent three to six months and are retained on the FTP site until NSIDC's Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I Passive Microwave Data (preliminary data) become available for the same time period.
These data are primarily meant to provide a best estimate of current ice and snow conditions based on information and algorithms available at the time the data are acquired. Near-real-time products are not intended for operational use in assessing sea ice conditions for navigation and should be used with caution in extending the sea ice time series in NSIDC's Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I Passive Microwave Data.
Purpose:
Scientific Research
Credit:
The following example shows how to cite the use of this data set in a publication. For more information, see our Use and Copyright Web page.
Jim Maslanik. 1999, updated daily. Near-Real-Time DMSP SSM/I-SSMIS Daily Polar Gridded Sea Ice Concentrations. [indicate subset used]. Boulder, Colorado USA: National Snow and Ice Data Center.
Status:
Value: underDevelopment
CodeList: MD_ProgressCode
Point of Contact:
Responsible Party:
Individual Name: Jim Maslanik
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309
Country: USA
Email: nsidc@kryos.colorado.edu
Contact Role:
Value: principalInvestigator
CodeList: CI_RoleCode
Responsible Party:
Individual Name: Julienne Stroeve
Organization Name: CIRES
Contact:
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309
Country: USA
Email: stroeve@nsidc.org
Contact Role:
Value: principalInvestigator
CodeList: CI_RoleCode
Responsible Party:
Individual Name: Kenneth Knowles
Organization Name: National Snow and Ice Data Center
Contact:
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Contact Role:
Value: principalInvestigator
CodeList: CI_RoleCode
Responsible Party:
Individual Name: Walt Meier
Organization Name: CIRES
Contact:
Contact Address:
Delivery Point: 449 UCB
City: Boulder
Administrative Area: CO
Postal Code: 80309
Country: USA
Email: walt@nsidc.org
Contact Role:
Value: principalInvestigator
CodeList: CI_RoleCode
Responsible Party:
Individual Name: Donald J. Cavalieri
Organization Name: NASA Goddard Space Flight Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 301 614-5901 x
Contact Address:
Delivery Point: NASA/GSFC
City: Greenbelt
Administrative Area: MD
Postal Code: 20771
Country: USA
Email: Donald.J.Cavalieri@nasa.gov
Contact Role:
Value: principalInvestigator
CodeList: CI_RoleCode
Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199 x
Contact Address:
Delivery Point: CIRES, 449 UCB
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Role:
Value: pointOfContact
CodeList: CI_RoleCode
Maintenance Information:
Maintenance and Update Frequency:
Value: asNeeded
CodeList: MD_MaintenanceFrequencyCode
Update Scope:
Value: dataset
CodeList: MD_ScopeCode
Value: series
CodeList: MD_ScopeCode
Value: attribute
CodeList: MD_ScopeCode
Contact:
Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199 x
Contact Address:
Delivery Point: CIRES, 449 UCB
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org
Contact Role:
Value: pointOfContact
CodeList: CI_RoleCode
Browse Graphic:
Image File: http://nsidc.org/data/seaice/images/yesterday_nhem.png
File Description: Most recent sea ice concentration data for the Northern Hemisphere. Sea ice concentration refers to the fraction of ice within each image pixel. This image is color-coded to show varying levels of ice concentration for the Northern Hemisphere. Grey represents land. Pixels with at least 15 percent concentration are classified as sea ice. Pixels with less than 15 percent ice concentration are classified as water.
Descriptive Keywords:
Keywords
Keyword: Continent > Antarctica
Keyword: Geographic Region > Arctic
Keyword: Geographic Region > Polar
Keyword Type:
Value: place
CodeList: MD_KeywordTypeCode
Keyword Thesaurus: Citation Information:
Title: NASA / GCMD Location Keywords
Date:
Date: 2008-02-05
Date Type:
Value: revision
CodeList: CI_DateTypeCode
Keywords
Keyword: EARTH SCIENCE > Cryosphere > Sea Ice > Sea Ice Concentration
Keyword: EARTH SCIENCE > Cryosphere > Sea Ice > Sea Ice Concentration
Keyword: EARTH SCIENCE > Oceans > Sea Ice > Sea Ice Concentration
Keyword: EARTH SCIENCE > Oceans > Sea Ice > Sea Ice Concentration
Keyword Type:
Value: discipline
CodeList: MD_KeywordTypeCode
Keyword Thesaurus: Citation Information:
Title: NASA / GCMD Science Keywords
Date:
Date: 2008-02-05
Date Type:
Value: revision
CodeList: CI_DateTypeCode
Keywords
Keyword: EOSDIS > Earth Observing System Data Information System
Keyword: ESIP > Earth Science Information Partners Program
Keyword Type:
Value: theme
CodeList: MD_KeywordTypeCode
Keyword Thesaurus: Citation Information:
Title: NASA / GCMD Project Keywords
Date:
Date: 2008-01-24
Date Type:
Value: revision
CodeList: CI_DateTypeCode
Keywords
Keyword: Antarctic
Keyword: Arctic
Keyword: DMSP
Keyword: Gridded Data
Keyword: Ice
Keyword: Ice Concentration
Keyword: Near Real-time
Keyword: Passive Microwave
Keyword: Polar
Keyword: Polar Stereographic
Keyword: Remote Sensing
Keyword: Sea Ice
Keyword: Sea Ice Concentration
Keyword: SMMR
Keyword: Special Sensor Microwave Imager/Sounder
Keyword: SSM/I
Keyword: SSMIS
Keyword Type:
Value: theme
CodeList: MD_KeywordTypeCode
Dataset Constraints:
Legal Constraints:
Access Constraints:
Value: otherRestrictions
CodeList: MD_RestrictionCode
Use Constraints:
Value: otherRestrictions
CodeList: MD_RestrictionCode
Other Constraints:
Access Constraints : none
These data are intended to facilitate time-sensitive research dependent upon precise detection of seasonal polar sea ice formation and break up. These data are primarily meant to provide a best estimate of current ice and snow conditions based on information and algorithms available at the time the data are acquired. Near-real-time products are not intended for operational use in assessing sea ice conditions for navigation and should be used with caution in extending the sea ice time series. For historical SMMR and SSM/I sea ice concentration data, please see Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I Passive Microwave Data.
Language:
eng; usa
Character Set:
Value: UTF8
CodeList: MD_CharacterSetCode
Topic Category:
Value: climatologyMeteorologyAtmosphere
CodeList: MD_topicCategoryCode
Topic Category:
Value: oceans
CodeList: MD_topicCategoryCode
Extent Information:
Spatial Temporal Extent:
Geographic Element:
Bounding Coordinates:
Westbound Longitude: -180
Eastbound Longitude: 180
Southbound Latitude: -90
Northbound Latitude: 90
Temporal Element:
Time Period:
Begin Position: 20120101
End Position: 20130504
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Distribution Information:
Distributor Information:
Distributor Contact:
Responsible Party:
Individual Name: NSIDC DAAC User Services
Organization Name: NASA DAAC at the National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org/daac/index.html
Contact Role:
Value: custodian
CodeList: CI_RoleCode
Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org
Contact Role:
Value: custodian
CodeList: CI_RoleCode
Distribution Format(s):
Data File Format:
Name: PNG
Specification: FTP
Data File Format:
Name: Binary
Specification: FTP 102.7 KB
Data File Format:
Name: Binary
Specification: FTP 133.3 KB
Digital Transfer Options:
Online Transfer Options:
Online Resources:
Linkage: ftp://sidads.colorado.edu/pub/DATASETS/nsidc0081_nrt_nasateam_seaice/
Description: Data Access URL
Function:
Value: download
CodeList: CI_OnLineFunctionCode
Function:
Value:
CodeList: CI_OnLineFunctionCode
Linkage: http://nsidc.org/data/docs/daac/nsidc0081_ssmi_nrt_seaice.gd.html
Description: Documentation URL
Function:
Value: information
CodeList: CI_OnLineFunctionCode
Offline Transfer Options:
Offline Resources:
Name:
Value: onLine
CodeList: MD_MediumNameCode
Medium Name: FTP
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Data Acquisition Information:
Instrument Information:
Instrument:
Name: SSM/I > Special Sensor Microwave/Imager
Type: sensor
Instrument:
Name: SSMIS > Special Sensor Microwave Imager/Sounder
Type: sensor
Platform Information:
Platform:
Name: DMSP 5D-2/F13 > Defense Meteorological Satellite Program-F13
Description: satellite
Instrument: N/A
Platform:
Name: DMSP 5D-2/F15 > Defense Meteorological Satellite Program-F15
Description: satellite
Instrument: N/A
Platform:
Name: DMSP 5D-3/F17 > Defense Meteorological Satellite Program-F17
Description: satellite
Instrument: N/A
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