DMSP SSM/I-SSMIS Daily Polar Gridded Brightness Temperatures, Version 6 (NSIDC-0001)
Data set:
NSIDC-0001
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This is the most recent version of these data.
Version Summary
This version contains the following changes:
- Data set was converted from binary to NetCDF format.
- Daily files now contain data from all available sensors for a particular day.

Overview

This data set provides daily gridded brightness temperatures derived from passive microwave sensors and distributed in a polar stereographic projection. NSIDC produces daily gridded brightness temperatures from orbital swath data generated by the Special Sensor Microwave/Imager (SSM/I) aboard the Defense Meteorological Satellite Program (DMSP) F8, F11, and F13 platforms and the Special Sensor Microwave Imager/Sounder (SSMIS) aboard DMSP F17 and F18. The SSM/I and SSMIS channels used to calculate brightness temperatures include 19.3 GHz vertical and horizontal, 22.2 GHz vertical, 37.0 GHz vertical and horizontal, 85.5 GHz vertical and horizontal (on SSM/I), and 91.7 GHz vertical and horizontal (on SSMIS). Data at 85.5 GHz and 91.7 GHz are gridded at a resolution of 12.5 km, with all other frequencies at a resolution of 25 km. Orbital data for each 24-hour period are mapped to respective grid cells using a simple sum-and-average method, also known as the drop-in-the-bucket method.
Parameter(s):
BRIGHTNESS TEMPERATURE
Platform(s):
DMSP 5D-2/F11, DMSP 5D-2/F13, DMSP 5D-2/F8, DMSP 5D-3/F17, DMSP 5D-3/F18
Sensor(s):
SSM/I, SSMIS
Data Format(s):
NetCDF
Temporal Coverage:
9 July 1987 to 5 October 2022
Temporal Resolution:
1 day, 1 day
Spatial Resolution:
25 km
25 km
,
12.5 km
12.5 km
Spatial Coverage:
N:
90
S:
30
E:
180
W:
-180
N:
-39
S:
-90
E:
180
W:
-180

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