Short Name:

AU_SI25

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

The AMSR-E/AMSR2 Unified Level-3 25 km product provides sea ice concentration derived from brightness temperatures using the NASA Team 2 (NT2) algorithm for the Northern and Southern Hemisphere. This data set includes six daily brightness temperature fields for channels ranging from 6.9 through 89.0 GHz, three daily sea ice concentration fields, and three daily sea ice concentration difference fields for ascending orbits, descending orbits, and full orbit daily averages. The sea ice concentration difference fields compare the NT2 algorithm with the Bootstrap algorithm. All fields are mapped to 25 km polar stereographic grids. <b>Note:</b> This product uses the Japan Aerospace Exploration Agency (JAXA) AMSR2 Level-1R input brightness temperatures that are calibrated, or unified, across the JAXA AMSR-E and JAXA AMSR2 Level-1R products.

Overview Download Data Services Tools Citation Information Documentation Additional Information

Science Keywords:

Spatial Extent:

Bounding Rectangle:

N: 89.24 S: 30.98 E: 180.0 W: -180.0,

N: -39.23 S: -89.24 E: 180.0 W: -180.0

Data Format(s):

Distribution: HDF-EOS5

Temporal Extent:

2012-07-02 to now

Platform(s):

GCOM-W1

Data Center(s):

NASA/MSFC/AMSR-E SIPS

Instrument(s):

AMSR2

Version:

Download Options

NSIDC_ECS_ECHO_ORDERS View Service Record
Type: ECHO ORDERS
Description: NSIDC_ECS EOSDIS ECHO ORDERS Service Implementation
NSIDC_ECS_EGI_API_NO_PROCESSING View Service Record
Type: EGI - No Processing
Description: Using this service, data from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) can be accessed directly from our HTTPS file system, or through our Application Programming Interface (API). This API offers you the ability to programmatically order and bulk-download data using temporal and spatial filters without the need to script against NSIDC's data directory structure. This may be valuable if you are interested in incorporating data access commands into your analysis or visualization code.
NSIDC_ECS_Subscription_No_Proc View Service Record
Type: NOT PROVIDED
Description: Our subscription service automatically sends you new data as they are delivered from active NASA satellite missions, either via SCP or HTTPS pull. This service is convenient if you require the latest data for a specific region, but you do not want to actively search and order data files regularly. The service cannot be applied to past data already archived at NSIDC.

NSIDC_ECS_HDF-EOS_Tools_Info_Center View Tool Record
Type: Downloadable Tool
Description: Example code produced by the HDF-EOS Tools and Information Center for accessing and visualizing select NSIDC DAAC data in MATLAB, Python, IDL, and NCL.
NSIDC_ECS_NASA_LaRC View Tool Record
Type: Web User Interface
Description: An interactive tool that estimates when satellites have passed, or will pass, over an area of the Earth. Users specify latitude and longitude or select a location on the map for which to calculate a 5-day sequence of satellite overpasses.
NSIDC_ECS_HDFView View Tool Record
Type: Downloadable Tool
Description: HDFView is a visual tool for browsing and editing HDF4 and HDF5 files. Using HDFView, you can view a file hierarchy in a tree structure, create new files, add or delete groups and datasets, view and modify the content of a dataset, and add, delete and modify attributes.
NSIDC_ECS_Panoply View Tool Record
Type: Downloadable Tool
Description: Panoply is a desktop application that interactively plots georeferenced and other arrays encoded in the netCDF, HDF and GRIB file formats. With Panoply you can: Slice and plot geo-referenced latitude-longitude, latitude-vertical, longitude-vertical, time-latitude or time-vertical arrays from larger multidimensional variables; slice and plot "generic" 2D arrays from larger multidimensional variables; slice 1D arrays from larger multidimensional variables and create line plots; combine two geo-referenced arrays in one plot by differencing, summing or averaging; plot lon-lat data on a global or regional map using any of over 100 map projections or make a zonal average line plot; overlay continent outlines or masks on lon-lat map plots; use any of numerous color tables for the scale colorbar, or apply your own custom ACT, CPT, or RGB color table.

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Title: AMSR-E/AMSR2 Unified L3 Daily 25 km Brightness Temperatures & Sea Ice Concentration Polar Grids V001
Version: 1
Publisher: NASA National Snow and Ice Data Center Distributed Active Archive Center

GENERAL DOCUMENTATION: https://doi.org/10.5067/TRUIAL3WPAUP, Includes a user's guide, supplemental documents like ATBDs and academic papers, How Tos, FAQs, etc.

Purpose
Scientific Research
DOI
10.5067/TRUIAL3WPAUP
Search for granules from this collection

Processing Level

Level 3

Geophysical variables mapped on a grid

Quality

Collection Progress
Planned

Related URLs

ISO Topic Categories

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Additional Attributes

Name: AscendingDescendingFlg STRING Description: Satellite Direction
Name: EndingPolygonNumber INT Description: The index number for the last polygon associated with the nominal pass number in the granule
Name: NominalPassIndex INT Description: The nominal pass index number for the pass that best describes the spatial location of the granule, where the pass is either the ascending or descending portion of an orbit
Name: PercentRetrievals INT Description: Percentage of data points over land where retrievals are done = (number of retrieval points/total number of land points)*100 (computed using a classification mask for mountains, forest, etc.).
Name: PercentRetrievalsWithinBounds INT Description: Percentage of land data points where retrievals are done, whose retrievals are within bounds = (number of within-bounds retrieval points/number of retrieval points)*100.
Name: StartingPolygonNumber INT Description: The index number for the first polygon associated with the nominal pass number in the granule.
Name: identifier_product_doi STRING Description: Digital object identifier that uniquely identifies this data product
Name: identifier_product_doi_authority STRING Description: URL of the digital object identifier resolving authority

Projects

Project Short Name	Campaigns	Project Dates
AMSR-E/AMSR2 Unified Data	No campaigns listed.	2011-08-25 to 2015-06-07

Coverage Type	Zone Identifier	Geometry	Granule Representation
HORIZONTAL		CARTESIAN	GEODETIC

Location Keywords

- GEOGRAPHIC REGION
- POLAR

NASA NSIDC DAAC
ARCHIVER
- National Snow and Ice Data Center
  CIRES, 449 UCB
  University of Colorado
  Boulder, CO 80309-0449
1 303 492 6199

Email
Archiving Data Center
https://nsidc.org/daac

Home Page
NASA NSIDC DAAC
DISTRIBUTOR
- National Snow and Ice Data Center
  CIRES, 449 UCB
  University of Colorado
  Boulder, CO 80309-0449
1 303 492 6199

Email
Archiving Data Center
https://nsidc.org/daac

Home Page
NASA/MSFC/AMSR-E SIPS
PROCESSOR
This data center does not have any addresses listed.
This data center does not have any contact mechanisms listed.
Originating Data Center
https://weather.msfc.nasa.gov/AMSR/

Home Page
NASA/MSFC/AMSR-E SIPS
ORIGINATOR
This data center does not have any addresses listed.
This data center does not have any contact mechanisms listed.
Originating Data Center
https://weather.msfc.nasa.gov/AMSR/

Home Page

Josefino Comiso
Technical Contact

Josefino Comiso
- Laboratory for Hydrospheric Processes
  Cryospheric Sciences Branch
  NASA/Goddard Space Flight Center
  Greenbelt, MD 20771
1 301 614 5708

Email
Thorsten Markus
Technical Contact

Thorsten Markus
- NASA/Goddard Space Flight Center
  Instrumentation Sciences Branch
  Code 614.6
  Greenbelt, MD 20771
1 301 614 5882

Email
NSIDC Services
Technical Contact

NSIDC Services
- CIRES, 449 UCB
  University of Colorado
  Boulder, CO 80309-0449
1 303 492 6199

1 303 492 2468

Email
Walter Meier
Technical Contact

Walter Meier
- Boudler, CO 80309
Email
Thorsten Markus
Technical Contact

Thorsten Markus
- NASA/Goddard Space Flight Center
  Instrumentation Sciences Branch
  Code 614.6
  Greenbelt, MD 20771
1 301 614 5882

Email
Josefino Comiso
Technical Contact

Josefino Comiso
- Laboratory for Hydrospheric Processes
  Cryospheric Sciences Branch
  NASA/Goddard Space Flight Center
  Greenbelt, MD 20771
1 301 614 5708

Email
Walter Meier
Technical Contact

Walter Meier
- Boudler, CO 80309
Email
NASA National Snow and Ice Data Center Distributed Active Archive Center
User Services

NASA National Snow and Ice Data Center Distributed Active Archive Center
- Boulder, Colorado
This contact does not have any contact mechanisms listed.

Metadata Dates

Creation	2018-09-20T00:00:00.000Z
Last Revision	2019-06-17T00:00:00.000Z

File Distribution Information

Format: HDF-EOS5

Format Type: Native

Format Description: HTTPS

CMR Search

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

Collection Information

Data Identification

Related URLs

Other Descriptive Keywords

ISO Topic Categories

Additional Attributes

Acquisition Information

Projects

Temporal Information

Spatial Information

Location Keywords

Data Centers

NASA NSIDC DAAC

NASA NSIDC DAAC

NASA/MSFC/AMSR-E SIPS

NASA/MSFC/AMSR-E SIPS

Data Contacts

Josefino Comiso

Josefino Comiso

Thorsten Markus

Thorsten Markus

NSIDC Services

NSIDC Services

Walter Meier

Walter Meier

Thorsten Markus

Thorsten Markus

Josefino Comiso

Josefino Comiso

Walter Meier

Walter Meier

NASA National Snow and Ice Data Center Distributed Active Archive Center

NASA National Snow and Ice Data Center Distributed Active Archive Center

Metadata Dates

Archive And Distribution Information

File Distribution Information