Evidencing seasonal variations in attitude on RADARSAT1 satellite from differential interferometry studies

This paper intends to meet several objectives: the first one is to show the seasonal variation of the azimuth Doppler on Radarsat 1 satellite which was evidenced in a study of a volcano within ADROI program of the Canadian Space Agency (CSA) the second one is to give some advice to cope with this phenomena and to promote differential interferometry in case of SAR satellite with multiple incidence angle capabilities like Radarsat series or Envisat.