This NRT AMSR2 Daily L3 12.5 KM TB Polar Grids Version 2 dataset was active from 26 February 2019 to 01 July 2020, and has now been retired.
The new version is now available at http://dx.doi.org/10.5067/AMSRU/AU_SI12_NRT_R04.
The Advanced Microwave Scanning Radiometer 2 (AMSR2) instrument on the Global Change Observation Mission - Water 1 (GCOM-W1) provides global passive microwave measurements of terrestrial, oceanic, and atmospheric parameters for the investigation of global water and energy cycles. Near real-time (NRT) products are generated within 3 hours of the last observations in the file, by the Land Atmosphere Near real-time Capability for EOS (LANCE) at the AMSR Science Investigator-led Processing System (AMSR SIPS), which is collocated with the Global Hydrology Resource Center (GHRC) DAAC. The NRT AMSR2 Unified L3 Daily 12.5 km Brightness Temperature & Sea Ice Concentration, Version 2 uses as input the resampled brightness temperature (Level-1R) data provided by the Japanese Aerospace Exploration Agency (JAXA). The Version 2 dataset uses the AMSR-U2 product generation algorithm with slight modifications for NRT product generation, same algorithm used to generation the standard , science quality, data that is available at the NSIDC DAAC. This Level-3 gridded product includes brightness temperatures at 89.0 GHz. Data are mapped to a polar stereographic grid at 12.5 km spatial resolution. Sea ice concentration and brightness temperatures include daily ascending averages, daily descending averages, and daily averages. Data are stored in HDF-EOS5 format and are available via HTTP from the EOSDIS LANCE system at https://lance.nsstc.nasa.gov/amsr2-science/data/level3/seaice12. If data latency is not a primary concern, please consider using science quality products. Science products are created using the best available ancillary, calibration and ephemeris information. Science quality products are an internally consistent, well-calibrated record of the Earth's geophysical properties to support science. These standard product, science quality, are available at the NSIDC DAAC: https://nsidc.org/
Meier, Walt , Josefino C Comiso and Thorsten Markus. 2019. NRT AMSR2 Unified L3 Daily 12.5 km Brightness Temperature & Sea Ice Concentration V2 [indicate subset used]. Dataset available online from the NASA Global Hydrology Resource Center DAAC, Huntsville, Alabama, U.S.A.
DOI: http://dx.doi.org/10.5067/AMSRU/AU_SI12_NRT_R02
For more information on GHRC DAAC citations, see these Instructions for citing GHRC data.
Retirement Date: | 2020-07-01 | |
Publication Date: | 2019-02-26 | |
Version: | 2 | |
Collections: | LANCE AMSR2 Near Real-Time Products | |
Projects: | LANCE | |
Platforms: | GCOM-W1 | |
Instruments: | AMSR2 | |
Terms: | Microwave, Sea Ice | |
Processing level: | 3 | |
Format: | HDF-EOS-5 |
Red dots or areas indicate coverage range.
Location: | POLAR |
Spatial Resolution: | 12.5 km x 12.5 km |
North boundary: | 89° |
West boundary: | -180° |
East boundary: | 180° |
South boundary: | -89° |
Temporal resolution: | Daily - < Weekly |
Start date: | 2019-12-01 00:40:31 |
Stop date: | OnGoing |
Retired Dataset: | Retired data available on request only | |
User's Guide: | https://nsidc.org/data/au_si12/versions/1 The guide document contains detailed information about the dataset |
|
Worldview: | https://worldview.earthdata.nasa.gov/?l=MODIS_Terra_CorrectedReflectance_TrueColor,AMSRU2_Sea_Ice_Concentration_12km,Coastlines Interactively browse imagery in EOSDIS Worldview |
|
Project Home Page: | https://earthdata.nasa.gov/earth-observation-data/near-real-time The home page for the project or program which sponsored the dataset |
|
DOI: | http://dx.doi.org/10.5067/AMSRU/AU_SI12_NRT_R02 Digital Object Identifier |
|
Citing data: | https://ghrc.nsstc.nasa.gov/home/about-ghrc/citing-ghrc-daac-data Instructions for citing GHRC data. |
Have you used our data? Register for updates