This NRT AMSR2 Daily L3 25 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_SI25_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 25 km Brightness Temperature & Sea Ice Concentration Polar Grids, 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 6.9 through 89.0 GHz and sea ice concentrations. Data are mapped to a polar stereographic grid at 25 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/seaice25. 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/
Markus, Thorsten, Josefino C Comiso, Donald J Cavalieri and Alvaro Ivanoff. 2015. NRT AMSR2 DAILY L3 25 KM TB AND SEA ICE CONCENTRATION POLAR GRIDS V1 [indicate subset used]. Dataset available online from the NASA Global Hydrology Center DAAC, Huntsville, Alabama, U.S.A.
DOI: http://dx.doi.org/10.5067/AMSRU/AU_SI25_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 | |
![[coverage map]](../coverage/A2_SI25_NRT.png)
Red dots or areas indicate coverage range.
| Location: | POLAR |
| Spatial Resolution: | 25 km x 25 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_SI25/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_25km,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_SI25_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
