Greenland Ice Sheet Melt Characteristics Derived from Passive Microwave Data  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:
Greenland Ice Sheet Melt Characteristics Derived from Passive Microwave Data
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:
2013-05-07
Metadata Standard Name:
ISO 19115 Geographic Information - Metadata First Edition
Metadata Standard Version:
ISO 19115:2003
Dataset URI:
http://nsidc.org/data/nsidc-0218.html
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Data Identification Information:
Citation:
Citation Information:
Title: Greenland Ice Sheet Melt Characteristics Derived from Passive Microwave Data
Date:
Date: 2008
Date Type:
Value: publication
CodeList: CI_DateTypeCode
Edition Date: 2008-02-25
Identifier: NSIDC-0218
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:
The Greenland ice sheet melt extent data, acquired as part of the NASA Program for Arctic Regional Climate Assessment (PARCA), is a daily (or every other day, prior to August 1987) estimate of the spatial extent of wet snow on the Greenland ice sheet since 1979. It is derived from passive microwave satellite brightness temperature characteristics using the Cross-Polarized Gradient Ratio (XPGR) of Abdalati and Steffen (1997). It is physically based on the changes in microwave emission characteristics observable in data from the Scanning Multi-channel Microwave Radiometer (SMMR) and the Special Sensor Microwave/Imager (SSM/I) instruments when surface snow melts. It is not a direct measure of the snow wetness but rather is a binary indicator of the state of melt of each SMMR and SSM/I pixel on the ice sheet for each day of observation. It is, however, a useful proxy for the amount of melt that occurs on the Greenland ice sheet. The data are provided in a variety of formats including raw data in ASCII format, gridded daily data in binary format, and annual and complete time series climatologies in gridded binary and GeoTIFF format. All data are in a 60 x 109 pixel subset of the standard Northern Hemisphere polar stereographic grid with a 25 km resolution and are available via FTP.
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.
Waleed Abdalati. 2008. Greenland Ice Sheet Melt Characteristics Derived from Passive Microwave Data. [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: Waleed Abdalati
Organization Name: University of Colorado-Boulder/ CIRES
Contact:
Contact Address:
City: Boulder
Administrative Area: CO
Postal Code: 80309
Country: USA
Email: waleed.abdalati@colorado.edu
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
Descriptive Keywords:
Keywords
Keyword: Continent > North America > Greenland
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 > Snow/Ice > Snow Melt
Keyword: EARTH SCIENCE > Cryosphere > Snow/Ice > Snow Melt
Keyword: EARTH SCIENCE > Terrestrial Hydrosphere > Snow/Ice > Snow Melt
Keyword: EARTH SCIENCE > Terrestrial Hydrosphere > Snow/Ice > Snow Melt
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: PARCA > Program in Arctic Regional Climate Assessment
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: Greenland
Keyword: Ice Sheet
Keyword: PARCA
Keyword: Passive Microwave
Keyword: Passive Microwave Data
Keyword: Polar Stereographic
Keyword: SMMR
Keyword: Snow Melt
Keyword: SSM/I
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
Use Constraints : none
Language:
eng; usa
Character Set:
Value: UTF8
CodeList: MD_CharacterSetCode
Topic Category:
Value: geoscientificInformation
CodeList: MD_topicCategoryCode
Topic Category:
Value: imageryBaseMapsEarthCover
CodeList: MD_topicCategoryCode
Extent Information:
Spatial Temporal Extent:
Geographic Element:
Bounding Coordinates:
Westbound Longitude: -73
Eastbound Longitude: -10
Southbound Latitude: 60
Northbound Latitude: 84
Temporal Element:
Time Period:
Begin Position: 19790402
End Position: 20071231
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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: ASCII Text
Specification: FTP 0 - 16 KB
Data File Format:
Name: Binary
Specification: FTP 13 KB
Data File Format:
Name: GeoTIFF
Specification: FTP 2 - 4 KB
Digital Transfer Options:
Online Transfer Options:
Online Resources:
Linkage: ftp://sidads.colorado.edu/pub/DATASETS/parca/nsidc0218_melt/
Description: Data Access URL
Function:
Value: download
CodeList: CI_OnLineFunctionCode
Function:
Value:
CodeList: CI_OnLineFunctionCode
Linkage: http://nsidc.org/data/docs/daac/parca/nsidc0218_greenland_melt_pm/
Description: Documentation URL
Function:
Value: information
CodeList: CI_OnLineFunctionCode
Offline Transfer Options:
Offline Resources:
Name:
Value: onLine
CodeList: MD_MediumNameCode
Density: 0
Density Units: KB
Medium Name: FTP
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Data Acquisition Information:
Instrument Information:
Instrument:
Name: SMMR > Scanning Multichannel Microwave Radiometer
Type: sensor
Instrument:
Name: SSM/I > Special Sensor Microwave/Imager
Type: sensor
Platform Information:
Platform:
Name: DMSP 5D-2/F11 > Defense Meteorological Satellite Program-F11
Description: satellite
Instrument: N/A
Platform:
Name: DMSP 5D-2/F13 > Defense Meteorological Satellite Program-F13
Description: satellite
Instrument: N/A
Platform:
Name: DMSP 5D-2/F8 > Defense Meteorological Satellite Program-F8
Description: satellite
Instrument: N/A
Platform:
Name: NIMBUS-7
Description: satellite
Instrument: N/A
Platform:
Name: SATELLITES
Description: satellite
Instrument: N/A
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