AMSR-E/AMSR2 Unified L3 Daily 25 km Brightness Temperatures & Sea Ice Concentration Polar Grids, Version 1

Data set id:

AU_SI25

DOI: 10.5067/TRUIAL3WPAUP

This is the most recent version of these data.
Version Summary

Initial release

Overview

This data set reports average daily horizontally and vertically polarized brightness temperatures and sea ice concentrations on 25 km resolution north and south polar stereographic grids. The data are derived from observations acquired by the Advanced Microwave Scanning Radiometer (AMSR) for EOS (AMSR-E) and AMSR2 instruments that have been spatially resampled by the Japan Aerospace Exploration Agency (JAXA) to unify the AMSR-E and AMSR2 missions. Brightness temperatures are available at 6.9 GHz, 10.7 GHz, 18.7 GHz, 23.8 GHz, 36.5 GHz and 89.0 GHz for ascending and descending orbits, and as a single daily average. Sea ice concentrations are generated with the Enhanced NASA Team (NT2) algorithm; a separate variable reports the daily sea ice concentration difference between the legacy AMSR Basic Bootstrap Algorithm (ABA) and the NT2.

Parameter(s):

BRIGHTNESS TEMPERATURE

SEA ICE CONCENTRATION

Platform(s):

Aqua

GCOM-W1

Sensor(s):

AMSR-E

AMSR2

Data Format(s):

HDF-EOS5

Temporal Coverage:

1 June 2002 to 4 October 2011
2 July 2012 to present

Temporal Resolution:

1 day

Spatial Resolution:

25 km

25 km

Spatial Reference System(s):

NSIDC Sea Ice Polar Stereographic North
EPSG:3411
NSIDC Sea Ice Polar Stereographic South
EPSG:3412

Spatial Coverage:

N:
89.24
S:
30.98
E:
180
W:
-180
N:
-39.23
S:
-89.24
E:
180
W:
-180

Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.

View Metadata Record

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Documentation

User Guide

AMSR-E/AMSR2 Unified L3 Daily 25 km Brightness Temperatures & Sea Ice Concentration Polar Grids, Version 1 User Guide

ATBDs

AMSR2 Sea Ice Algorithm Theoretical Basis Document

The AMSR-E NT2 Sea Ice Concentration Algorithm: its Basis and Implementation

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