This README file contains information on the NCEP/AWS Infrared Global Geostationary Composite data set. The temporal coverage of this data set is June 4, 1995 to present.
NOTE: These data are in McIDAS area format, and require the McIDAS program to be useable. McIDAS is available from the Space Science and Engineering Center at the University of Wisconsin, Madison.
1. Introduction
2. Data Acquisition
3. File Naming Convention
4. References
5. Contact Information
The NCEP/AWS Infrared Global Geostationary Composite data set contains global composite images from the infrared channels of four weather satellites in geosynchronous orbit. These satellites are the GMS (Japan), GOES-East, GOES-West (USA), and Meteosat (Europe). These imagers span nearly the entire globe with a small gap over India. Light areas in the image correspond to relatively cold regions (typically clouds), and dark areas correspond to relatively warm regions. The data resolution is 14 km spatial with the data remapped into a Mercator projection. The raw data are in the McIDAS area (image) format. This allows for navigation and temperature calibration of the data. However, the data has not necessarily been cross calibrated between sensors. Daily granules are available at half-hour intervals.
The composite image is produced at the United States Storms Prediction Center which is operated by the National Oceanic and Atmospheric Administration. The data are ingested real time by the Global Hydrology Resource Center (GHRC) http://ghrc.nsstc.nasa.gov/ .
The file naming convention is:
globiryy.ddd_daily.tar
where yyddd is the date; year (yy) and day (ddd)
Each file contains one day's data which consists of 48 images. Each image is created from 4 (GMS, GOES-East, GOES-West, and Meteosat) composited and remapped McIDAS areas.
Kidder, S. Q. and T. H. Vonder Haar, Satellite Meteorology An Introduction , Academic Press, San Diego, CA, 1995.
Data can be ordered and questions addressed at http://ghrc.nsstc.nasa.gov/.
To order this data or for further information, please contact: Global Hydrology Resource Center
User Services
320 Sparkman Drive
Huntsville, AL 35805
Phone: 256-961-7932
E-mail: ghrc@eos.nasa.gov
NASA Information Contact: Michael Goodman, Global Hydrology and Climate Center
GHRC Web Curator: GHRC Web Team
Last update: Thursday, 03-Feb-2005 13:01:43 CST
If you have trouble viewing or navigating this page, please contact GHRC User Services.
U.S. Government Compliance report.