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| DOI | 10.5067/GHAM2-2PR8A |
| Short Name | AMSR2-REMSS-L2P-v8a |
| Description | The Advanced Microwave Scanning Radiometer 2 (AMSR2) was launched on 18 May 2012, onboard the Global Change Observation Mission - Water (GCOM-W) satellite developed by the Japan Aerospace Exploration Agency (JAXA). The GCOM-W mission aims to establish the global and long-term observation system to collect data, which is needed to understand mechanisms of climate and water cycle variations, and demonstrate its utilization. AMSR2 onboard the first generation of the GCOM-W satellite will continue Aqua/AMSR-E observations of water vapor, cloud liquid water, precipitation, SST, sea surface wind speed, sea ice concentration, snow depth, and soil moisture. AMSR2 is a remote sensing instrument for measuring weak microwave emission from the surface and the atmosphere of the Earth. From about 700 km above the Earth, AMSR2 will provide us highly accurate measurements of the intensity of microwave emission and scattering. The antenna of AMSR2 rotates once per 1.5 seconds and obtains data over a 1450 km swath. This conical scan mechanism enables AMSR2 to acquire a set of daytime and nighttime data with more than 99% coverage of the Earth every 2 days. Remote Sensing Systems (RSS, or REMSS), providers of these SST data for the Group for High Resolution Sea Surface Temperature (GHRSST) Project, performs a detailed processing of AMSR2 instrument data in two stages. The first stage produces a near-real-time (NRT) product (identified by "_rt_" within the file name) which is made as available as soon as possible. This is generally within 3 hours of when the data are recorded. Although suitable for many timely uses the NRT products are not intended to be archive quality. "Final" data (currently identified by "v7.2" within the file name) are processed when RSS receives the atmospheric model National Center for Environmental Prediction (NCEP) Final Analysis (FNL) Operational Global Analysis. The NCEP wind directions are particularly useful for retrieving more accurate SSTs and wind speeds. This dataset adheres to the GHRSST Data Processing Specification (GDS) version 2 format specifications. |
| Version | 8a |
| Dataset Type | OPEN |
| Measurement | OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE > Sub-skin Sea Surface Temperature |
| Processing Level | 2P |
| Coverage | Region: Global Northernmost Latitude: 90 degrees Southernmost Latitude: -90 degrees Westernmost Longitude: -180 degrees Easternmost Longitude: 180 degrees Time Span: 2012-Jul-02 to Present Granule Time Span: 2012-Jul-02 to 2020-Jul-03 |
| Resolution | Spatial Resolution: 25 km (Along) x 25 km (Across) |
| Projection | Type: Satellite native swath Detail: Geolocation information included for each pixel Ellipsoid: none |
| Latency | 6 hours |
| Swath Width | 1450000 m |
| Sample Frequency | 1.5 |
| Temporal Repeat (Nominal) | 12 Hour |
| Temporal Repeat (Min) | 2 Hour |
| Temporal Repeat (Max) | 2 Day |
| Platform/Sensor | GCOM-W1 / Platform Name: Global Change Observation Mission 1st - Water (SHIZUKU) (GCOM-W1) Orbit Period: 100 minutes Inclination Angle: 98.19 degrees Ascending Node: 2010-Sep-26 13:30:00 AMSR2 SENSOR Name: Advanced Microwave Scanning Radiometer 2 (AMSR2) Swath Width: 1450 km Description: Advanced Microwave Scanning Radiometer 2 (AMSR2) onboard the GCOM- W1 |
| Project | Group for High Resolution Sea Surface Temperature (GHRSST) |
| Data Provider | Creator: Remote Sensing Systems Release Place: Santa Rosa, CA, USA Release Date: 2017-Oct-31 Resource: http://www.remss.com |
| Keyword(s) | GHRSST, sea surface temperature, L2P, SST, surface temperature, REMSS, AMSR2, GDS2, GCOM-W |
| Persistent ID | PODAAC-GHAM2-2PR8A |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
| User's Guide | |
| GDS2 User Manual | https://podaac-tools.jpl.nasa.gov/drive/files/OceanTemperature/ghrsst/docs/GDS20r5.pdf Documentation on the GDS version 2 format specification |
| Project Materials | |
| AMSR2 Information | http://www.remss.com/missions/amsr/ AMSR2 SSTs: algorithm description, browsing of data, and ftp of data |
| ASMR2 Instrument | http://suzaku.eorc.jaxa.jp/GCOM_W/w_amsr2/whats_amsr2.html Full details of the AMSR2 |
| FAQs | |
| What is SST? | https://podaac.jpl.nasa.gov/SeaSurfaceTemperature Sea Surface Temperature measurement description. |
| Citation | Remote Sensing Systems. 2017. GHRSST Level 2P Global Subskin Sea Surface Temperature version 8a from the Advanced Microwave Scanning Radiometer 2 on the GCOM-W satellite. Ver. 8a. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/GHAM2-2PR8A.
For more information see Data Citations and Acknowledgments.
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| Journal Reference | http://www.remss.com/missions/amsre | |||||||
