AVHRR Polar Pathfinder Twice-Daily 25 km EASE-Grid Composites, Version 1
Data set id:
NSIDC-0094
DOI: 10.5067/HQ0AYEDLYUYJ
This data set has been retired.

Overview

NOTE: This data set is retired and no longer available for download, due to errors in the data. It has been superseded by the Extended AVHRR Polar Pathfinder (APP-x) data set available at:https://nsidc.org/data/nsidc-0746The following information is provided for provenance: The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.
Parameter(s):
ALBEDOCLOUD AMOUNT/FREQUENCYINFRARED RADIANCELAND SURFACE TEMPERATURESKIN TEMPERATURETHERMAL INFRAREDTHERMAL PROPERTIESVIEWING GEOMETRYVISIBLE RADIANCE
Platform(s):
NOAA-11, NOAA-14, NOAA-7, NOAA-9
Sensor(s):
AVHRR
Data Format(s):
Binary, Binary
Temporal Coverage:
24 July 1981 to 31 December 2000
Temporal Resolution:
  • 12 hour
Spatial Resolution:
  • Not Specified
Spatial Coverage:
N:
90
S:
48.4
E:
180
W:
-180
N:
-53.2
S:
-90
E:
180
W:
-180
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.

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