AMSR-E/AMSR2 Unified L3 Daily 12.5 km Brightness Temperatures, Sea Ice Concentration, Motion & Snow Depth Polar Grids V001

This data set reports average daily horizontally and vertically polarized brightness temperatures; sea ice concentrations; and snow depths over sea ice on 12.5 km resolution north and south polar stereographic grids. Ungridded sea ice motion data are also available for the Arctic. 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 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 27, 2025, 14:18 (UTC)
Created	February 19, 2025, 10:42 (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 12.5 km Brightness Temperatures, Sea Ice Concentration, Motion & Snow Depth 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/RA1MIJOYPK3P.
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=-5513216,-3264512,5513216,3264512&p=arctic&l=AMSRU2_Sea_Ice_Concentration_12km,Coastlines_15m,MODIS_Terra_CorrectedReflectance_TrueColor
harvest_object_id	98c02f90-08aa-4a05-a062-b2543a8f8ced
harvest_source_id	b37e5849-07d2-41cd-8bb6-c6e83fc98f2d
harvest_source_title	DNG Legacy Data
identifier	C1542606326-NSIDC_ECS
issued	2002-06-01
landingPage	https://doi.org/10.5067/RA1MIJOYPK3P
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	51b86962da00d2bfa7e945bbb637c9cbe44c143a1672a7f13f9962b9d661b18b
source_schema_version	1.1
spatial	-180.0 -89.24 180.0 -39.23
temporal	2002-06-01T00:00:00Z/2025-03-24T00:00:00Z
theme	{geospatial}