org.nsidc:G02130 Allan Frei and David A. Robinson 20020101 Reconstructed North American Snow Extent, 1900-1993 Boulder, CO National Snow and Ice Data Center (NSIDC) http://nsidc.org/data/G02130.html This data set contains reconstructed monthly North American snow extent values for November through March, 1900-1993. Investigators used a combination of satellite and station observations and based the reconstruction on linear regressions between the two types of observations. The data also includes standard errors of estimates as well as the observed values upon which the regressions were based. Station-based snow observations are available for dates since the early twentieth century but lack comprehensive spatial coverage. A remotely sensed product based on visible-band imagery provides more complete spatial coverage but has only been available since the early 1970s. Since the reconstructed values are based on regression, variability is underestimated and therefore the magnitude of some extreme values is underestimated. Data are available via FTP. scientific research Allan Frei and David A. Robinson 20020101 Reconstructed North American Snow Extent, 1900-1993 Boulder, CO National Snow and Ice Data Center (NSIDC) http://nsidc.org/data/docs/noaa/g02130_frei_snow_cover/index.html 190012 199303 publication date Complete Unknown -125 -60 49 35 NASA Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > Cryosphere > Snow/Ice > Snow Cover > Snow Extent EARTH SCIENCE > Terrestrial Hydrosphere > Snow/Ice > Snow Cover > Snow Extent NASA Global Change Master Directory (GCMD) Instrument Keywords AVHRR > Advanced Very High Resolution Radiometer VHRR > Very High Resolution Radiometer NASA Global Change Master Directory (GCMD) Platform Keywords GROUND STATIONS SATELLITES ISO 19115 Topic Categories climatologyMeteorologyAtmosphere None HDCD Historical Daily Climate Dataset linear regression analysis North American snow extent reconstructed Snow Snow Extent NASA Global Change Master Directory (GCMD) Location Keywords Continent > North America 2 NASA Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > Cryosphere > Snow/Ice > Snow Cover > Snow Extent NASA Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > Terrestrial Hydrosphere > Snow/Ice > Snow Cover > Snow Extent None None NSIDC USER SERVICES mailing
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National Snow and Ice Data Center
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National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder CO 80309-0449 USA +1 (303) 492-6199 +1 (303) 492-2468 nsidc@nsidc.org G02130 NSIDC cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NSIDC makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. ASCII text file ftp://sidads.colorado.edu/DATASETS/NOAA/G02130 None 20070822 NSIDC NOAA USER SERVICES National Oceanic and Atmospheric Administration mailing
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder CO 80309-0449 USA +1 (303) 492-6199 +1 (303) 492-2468 nsidc@nsidc.org FGDC Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata FGDC-STD-012-2002