AVHRR Polar Pathfinder Twice-Daily 25 km EASE-Grid Composites  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:
AVHRR Polar Pathfinder Twice-Daily 25 km EASE-Grid Composites
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:
2013-05-18
Metadata Standard Name:
ISO 19115 Geographic Information - Metadata First Edition
Metadata Standard Version:
ISO 19115:2003
Dataset URI:
http://nsidc.org/data/nsidc-0094.html
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Data Identification Information:
Citation:
Citation Information:
Title: AVHRR Polar Pathfinder Twice-Daily 25 km EASE-Grid Composites
Date:
Date: 2002
Date Type:
Value: publication
CodeList: CI_DateTypeCode
Edition Date: 2002-01-01
Identifier: NSIDC-0094
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:
<font color="#FF0000">This data set is no longer available for use because of errors in the data. However, replacement data are expected by the end of 2012. If you need information pertaining to the data errors, please see the <a href="http://nsidc.org/data/docs/daac/nsidc0094_avhrr_25km_abstract.gd.html#errorsource">Error Sources Section of the guide documentation</a>. If you have further questions, contact NSIDC User Services by e-mail: <a href="mailto:nsidc@nsidc.org">nsidc@nsidc.org</a> or by telephone +1 303.492.6199.</font>
The AVHRR Polar Pathfinder Twice-Daily 25 km EASE-Grid Composites are a collection of products for both poles, consisting of twice-daily gridded and calibrated satellite channel data and derived parameters. Data include five Advanced Very High Resolution Radiometer (AVHRR) channels, clear sky surface broadband albedo and skin temperature, average albedo and temperature, valid fraction file, solar zenith angle, satellite elevation angle, sun-satellite relative azimuth angle, surface type mask, cloud mask, cloud fraction files, and Universal Coordinated Time (UTC) of acquisition. The 25 km data are derived from the AVHRR Polar Pathfinder Twice-Daily 5 km EASE-Grid Composites, and extend poleward from 48.4 degrees north and 53.2 degrees south latitudes, spanning July 1981 through December 2000. Data are in 1-byte and 2-byte integer grid format and are available by FTP.
Note: NSIDC reccommends the use of the Extended AVHRR Polar Pathfinder (APP-x) Product instead of our AVHRR Polar Pathfinder Twice-Daily 25 km EASE-Grid Composites. The APP-x 25 km product has albedo and temperature calculations for all sky conditions. Cloud properties are modeled to estimate the albedo and temperature under the clouds. An improved cloud detection algorithm is also used in the APP-x product.
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.
C. Fowler, J. Maslanik, T. Haran, T. Scambos, J. Key, and W. Emery.. 2002. AVHRR Polar Pathfinder Twice-Daily 25 km EASE-Grid Composites. [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: Chuck Fowler
Contact:
Contact Address:
Delivery Point: Colorado Center for Astrodynamics Research
City: Boulder
Administrative Area: CO
Postal Code: 80309-0431
Country: USA
Contact Role:
Value: principalInvestigator
CodeList: CI_RoleCode
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: Terry Haran
Organization Name: National Snow and Ice Data Center
Contact:
Contact Address:
Delivery Point: CIRES, 449 UCB
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Contact Role:
Value: principalInvestigator
CodeList: CI_RoleCode
Responsible Party:
Individual Name: Ted Scambos
Organization Name: University of Colorado
Contact:
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: scambos@nsidc.org
Contact Role:
Value: principalInvestigator
CodeList: CI_RoleCode
Responsible Party:
Individual Name: Jeffrey Key
Contact:
Contact Address:
Delivery Point: Space Science and Engineering Center
City: Madison
Administrative Area: WI
Postal Code: 53706
Country: USA
Contact Role:
Value: principalInvestigator
CodeList: CI_RoleCode
Responsible Party:
Individual Name: William Emery
Contact:
Contact Address:
Delivery Point: Colorado Center for Astrodynamics Research
City: Boulder
Administrative Area: CO
Postal Code: 80309-0431
Country: USA
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
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Update Scope:
Value: dataset
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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 > 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 > Atmosphere > Atmospheric Radiation > Albedo
Keyword: EARTH SCIENCE > Atmosphere > Clouds > Cloud Amount/Frequency
Keyword: EARTH SCIENCE > Cryosphere > Snow/Ice > Albedo
Keyword: EARTH SCIENCE > Land Surface > Land Temperature > Land Surface Temperature
Keyword: EARTH SCIENCE > Land Surface > Land Temperature > Skin Temperature
Keyword: EARTH SCIENCE > Land Surface > Surface Radiative Properties > Albedo
Keyword: EARTH SCIENCE > Land Surface > Surface Radiative Properties > Thermal Properties
Keyword: EARTH SCIENCE > Spectral/Engineering > Infrared Wavelengths > Infrared Radiance
Keyword: EARTH SCIENCE > Spectral/Engineering > Infrared Wavelengths > Thermal Infrared
Keyword: EARTH SCIENCE > Spectral/Engineering > Platform Characteristics > Viewing Geometry
Keyword: EARTH SCIENCE > Spectral/Engineering > Visible Wavelengths > Visible Radiance
Keyword: EARTH SCIENCE > Terrestrial Hydrosphere > Snow/Ice > Albedo
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: NOAA/NASA PATHFINDER > NOAA/NASA Pathfinder 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: AVHRR
Keyword: Cryosphere
Keyword: DAAC
Keyword: EOSDIS
Keyword: NASA
Keyword: NOAA
Keyword: NSIDC
Keyword: Pathfinder
Keyword: Polar
Keyword: Radiance
Keyword: Remote Sensing
Keyword: Satellite
Keyword Type:
Value: theme
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Dataset Constraints:
Legal Constraints:
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CodeList: MD_RestrictionCode
Use Constraints:
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CodeList: MD_RestrictionCode
Other Constraints:
Access Constraints : none
Use Constraints : none
Language:
eng; usa
Character Set:
Value: UTF8
CodeList: MD_CharacterSetCode
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: 19810724
End Position: 20001231
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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: Binary
Specification: FTP 127.3 KB
Data File Format:
Name: Binary
Specification: FTP 225.2 KB
Digital Transfer Options:
Online Transfer Options:
Online Resources:
Linkage: http://nsidc.org/data/docs/daac/nsidc0094_avhrr_25km_abstract.gd.html
Description: Documentation URL
Function:
Value: information
CodeList: CI_OnLineFunctionCode
Offline Transfer Options:
Offline Resources:
Name:
Value: onLine
CodeList: MD_MediumNameCode
Density: 127.3
Density Units: B
Medium Name: FTP
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Data Acquisition Information:
Instrument Information:
Instrument:
Name: AVHRR > Advanced Very High Resolution Radiometer
Type: sensor
Instrument:
Name: RADIOMETERS
Type: sensor
Platform Information:
Platform:
Name: NOAA-11 > National Oceanic & Atmospheric Administration-11
Description: satellite
Instrument: N/A
Platform:
Name: NOAA-14 > National Oceanic & Atmospheric Administration-14
Description: satellite
Instrument: N/A
Platform:
Name: NOAA-7 > National Oceanic & Atmospheric Administration-7
Description: satellite
Instrument: N/A
Platform:
Name: NOAA-9 > National Oceanic & Atmospheric Administration-9
Description: satellite
Instrument: N/A
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