Global Change Observation Mission-Water (GCOM-W) Advanced Microwave Scanning Radiometer 2 (AMSR2) Raw Data Records (RDR) and Two-Line Element Files
GW1A2RTLE
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.
Dataset Citation
- Cite this dataset when used as a source.
Dataset Identifiers
- gov.noaa.ncdc:C01370
ISO 19115-2 Metadata
gov.noaa.ncdc:C01370
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Ordering Instructions | Contact NCEI for other distribution options and instructions. |
Distributor |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Dataset Point of Contact | Customer Engagement Branch NOAA National Centers for Environmental Information 1-828-271-4800 ncei.orders@noaa.gov |
Time Period | 2012-04-01 to Present |
Spatial Bounding Box Coordinates |
West: -179.9
East: 180
South: -89.36
North: 89.16
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Dataset Progress Status | Ongoing - data is continually being updated |
Data Update Frequency | Continual |
Purpose | The mission of GCOM-W1 is to observe the water cycle. The Advanced Microwave Scanning Radiometer-2 (AMSR2) aboard the GCOM-W1 detects microwave signals emitted naturally from the ground, sea surface and atmosphere, using six different frequency bands ranging from 7 GHz to 89 GHz. The AMSR2 microwave observations can be used to assess precipitation, vapor amounts, wind velocity above the ocean, sea water temperature, water levels on land areas, and snow depths. This collection contains the AMSR2 Raw Data Records (RDR) which are used to develop the higher-level processed products, Sensor and Environmental Data Records (SDR and EDR). Also, included in this data collection are the GCOM-W1 Two Line Elements and Mission Notices. |
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Global Change Master Directory (GCMD) Science Keywords
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Global Change Master Directory (GCMD) Data Center Keywords
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Global Change Master Directory (GCMD) Platform Keywords
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Global Change Master Directory (GCMD) Instrument Keywords
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Global Change Master Directory (GCMD) Location Keywords
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Lineage Statement | These data were produced by the NOAA Office of Satellite and Product Operations (OSPO) and are archived at the NOAA National Centers for Environmental Information (NCEI). |
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Last Modified: 2023-06-23
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov