Description
The Advanced Technology Microwave Sounder (ATMS) Level 1B data files contain brightness temperature measurements along with ancillary spacecraft, instrument, and geolocation data of the ATMS instrument on the Suomi National Polar-orbiting Partnership Project (S-NPP).
The ATMS instrument is a cross-track scanner with 22 microwave channels in the range 23.8-183.31 Gigahertz (GHz). The beam width is 1.1 degrees for the channels in the 160-183 GHz range, 2.2 degrees for the 80 GHz and 50-60 GHz channels, and 5.2 degrees for the 23.8 and 31.4 GHz channels. Since the SNPP satellite is orbiting at an altitude of about 830 km, the instantaneous spatial resolution on the ground at nadir is about 16 km, 32 km, or 75 km depending upon the channel. The brightness temperature data are contained in an array with 135 rows in the along-track direction, 96 columns in the cross-track direction, and a 3rd dimension for each of the 22 channels. The ATMS cross-track scan interval is 0.018 seconds and the along-track scan period is 8.3 seconds.
Data products are constructed on six minute boundaries. The Granule Map Product consists of daily images of granule coverage in PDF format.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| The dataset's project home page | HTML | Sounder home page at NASA/JPL. General information on instrument, algorithms, and other AIRS and Sounder related activities can be found. | Open resource |
| This dataset's landing page | HTML | Access the dataset landing page from the GES DISC website. | Open resource |
| View information related to this dataset | HTML | AIRS/Sounder Documentation Page | Open resource |
| Get a related visualization | PNG | SNPP.Granule.map.png | Open resource |
| View this dataset's read me document | README Document | Open resource | |
| Google Scholar search results | HTML | Search results for publications that cite this dataset by its DOI. | Open resource |
| Download this dataset through Earthdata Search | HTML | Use the Earthdata Search to find and retrieve data sets across multiple data centers. | Open resource |
| Download this dataset through a directory map | HTML | Access the data via HTTPS. | Open resource |