SSEC Data Center
Overview
The program in this directory takes satellite wind data from the University of Wisconsin-Madison Space Science and Engineering Center, and converts it into DART format observation sequence files, for use in assimilating with the DART filter program.
Data sources
The Space Science and Engineering Center (SSEC) at University of Wisconsin-Madison has an online data center with both real-time and archival weather satellite data.
The last 2 day’s worth of data is available from ftp://cyclone.ssec.wisc.edu/pub/fnoc.
There is a second satellite wind DART converter in the MADIS Data Ingest System directory which converts wind observations which originate from NESDIS. The data from this converter is processed at the SSEC and the observations will be different from the ones distributed by MADIS.
Programs
convert_ssec_satwnd
converts the ascii data in the input files into a DART observation sequence
file. Go into the work
directory and run the quickbuild.sh
script to compile the necessary files.References
RF method: Velden, C. S., T. L. Olander, and S. Wanzong, 1998: The impact of multispectral GOES-8 wind information on Atlantic tropical cyclone track forecasts in 1995. Part I: Dataset methodology, description, and case analysis. Mon. Wea. Rev., 126, 1202-1218.
QI method: Holmlund, K., 1998: The utilization of statistical properties of satellite-derived atmospheric motion vectors to derive quality indicators. Wea. Forecasting, 13, 1093-1104.
Comparison of two methods: Holmlund, K., C.S. Velden, and M. Rohn, 2001: Enhanced Automated Quality Control Applied to High-Density Satellite-Derived Winds. Mon. Wea. Rev., 129, 517-529.