Abstract
WEFAX is the image signal transmitted from the Geostationary Meteorological Satellite (GMS). There are some commercially available programs to receive the signals and process them by means of the personal computers. All of the available programs are of almost similar level of working facilities for image preparation of specific hours, preparation of animated images from a series of images, detection of cloud top temperature, etc. As GMS is launched by Japan, it has been widely used in Japan for various purposes. On the other hand, some problems may arise if you make use of it for other countries. For example, the images of dislocated areas are deformed due to the earth curvature, which creates misinterpretation of clouds for those regions. The second difficulty is that the image data are overlapped by the latitudinal, longitudinal, and coastal lines, which may lead to erroneous result for digital data analyses. In order to improve these points, a series of new software is developed.
