The Advanced Microwave Sounding Unit (AMSU), with a total of 20 channels in microwave bands, represents a dramatic improvement in microwave technology over the microwave sounding unit (MSU) onboard earlier satellites of series carrying the TIROS-N satellites Operational Vertical Sounder (TOVS). IASI, the Infrared Atmospheric Sounding Interferometer is a key payload element of the METOP series of European meteorological polar-orbit satellites. It is developed by CNES in the framework of a co-operation agreement with EUMETSAT. Infrared data from IASI instrument are used in conjunction with the AMSU instruments to calculate the atmosphere's and moisture vertical temperature profile from the earth's surface to about 40 km altitude under all weather condition. The data is also used to determine surface temperature, cloud coverage and surface type. Moreover, the group pursues research in atmospheric profiling from ground-based instrumentation for complementing, aiding and validating satellite observations. The group shares the coordination of the International Network of Microwave Radiometers (MWRnet)