AMSR-E/AMSR2 Unified L3 Daily 25 km Brightness Temperatures & Sea Ice Concentration Polar Grids V001

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.

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Additional Info

Field	Value
Maintainer	NSIDC Services
Last Updated	March 31, 2025, 14:44 (UTC)
Created	March 31, 2025, 14:44 (UTC)
accessLevel	public
bureauCode	{026:00}
catalog_@context	https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id	https://data.nasa.gov/data.json
catalog_conformsTo	https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy	https://project-open-data.cio.gov/v1.1/schema/catalog.json
citation	AMSR-E/AMSR2 Unified L3 Daily 25 km Brightness Temperatures & Sea Ice Concentration Polar Grids V001. Version 1. Archived by National Aeronautics and Space Administration, U.S. Government, NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/TRUIAL3WPAUP.
graphic-preview-description	This application allows you to interactively browse global satellite imagery within hours of it being acquired. You can also save it, share it, and download the underlying data.
graphic-preview-file	https://worldview.earthdata.nasa.gov/?v=-6655412.555579213,-3948432.3949100254,6334726.537055528,3743351.3025861774&p=arctic&l=AMSRU2_Sea_Ice_Concentration_25km,Coastlines_15m,MODIS_Terra_CorrectedReflectance_TrueColor
harvest_object_id	3a3021da-5e33-40cc-95aa-20b5b2e3bfce
harvest_source_id	61638e72-b36c-4866-9d28-551a3062f158
harvest_source_title	DNG Legacy Data
identifier	C1542606320-NSIDC_ECS
issued	2002-06-01
landingPage	https://doi.org/10.5067/TRUIAL3WPAUP
language	{en-US}
metadata_type	geospatial
modified	2025-03-20
programCode	{026:001}
publisher	NASA NSIDC DAAC
resource-type	Dataset
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source_hash	7c79c59ae31b8610964f86b2171e59f418a1278ff6fc3cc86010ecbd0b8eda34
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spatial	-180.0 30.98 180.0 89.24
temporal	2002-06-01T00:00:00Z/2025-03-24T00:00:00Z
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