Suggestion of EFS-small satellite system for impending earthquake forecast

In the IAF Congress '92 a multiple small satellite Earth observation system was put forward with sensors of visible and infrared spectrums. The system could shorten the revisiting period so that any place on the world could b e observed twice a day. Now we extend the idea to the microwave remote sens ing satellite system. The main purpose of the system is the impending forec ast of earthquakes. According to the theory and long-time concrete practice of Qiang Zuji throu gh the observation of temperature increase of the low layer of atmosphere a nd its moving trend caused by some sorts of radiation and gases released fr om Earth interior, an impending strong earthquake could be predicted in tim e. As the temperature increase is detected by thermo-infrared spectrum sens ors on the meteorological satellites, the observation may be sometimes obst ructed by cloud or rain. In the suggested system, mm-wave radiometers are u sed and those obstructions could be generally overcome. Besides, radiometers of some other microwave frequencies are also included so as to make the small satellite system useful for observation of atmosphe re, soil and crops. The platform construction and the altitude control syst em of the satellites suitable to the sweeping radiometer antennas are stres sfully implemented. The orbit of the satellites in the system is well desig ned so that any place in the world could be observed twice a day in accorda nce with the optical small satellite system.