The CMA Viewer
What is the CMA Viewer?
The CMA Viewer is a Windows program to visualise the CMA (China
Meteorological Administration) data sent over EUMETCast.
What data does the view display?
As the program is still in development, the range of data is still expanding, but at the moment the program can display the following data types sent over EUMETCast:
There is no need to decompress the data from the Z-zipped format used for transmission.
The program has command-line facilities to process on or more files and produce image results. It can also accept user-defined palettes for the OLR and TBB data.
You can also get some data directly over the Internet from the
Satellite data site (in Chinese), in
English, but this appears to be the HDF5 format image data, and not the
meteorological products for which the CMA Viewer is designed. You can read
that image data with my GeoSatSignal program.
Modes of operation
In addition to the one-parameter and two-parameter modes, you can add a third
parameter "-MIN" which will make the program run off-screen and minimised, thus providing minimal visual distraction during
Can I register and what do I get?
The program as downloaded provides a 30-day trial licence
period to allow you to evaluate its function. After the 30-day period, you
will need to register to continue running the program. Registration also
entitles you to technical support. Register
the CMA Viewer here.
Download the CMA Viewer
Unless you have access to the data, I suggest not
downloading or installing the CMA Viewer, as you will trigger the 30-day trial
timer as soon as you run the program.
CTA - Cloud Type Analysis
CTA - Cloud Total Amount
OLR - Outgoing Long-wave Radiation
TBB - Black-Body temperature
TPW - Total Precipitable Water-Vapour