Interferometric image analysis in the High Arctic: specific features of general approach

Several approaches to spaceborne interferometric data analysis including interferogram differencing technique and joint processing of ERS-1/2 interferometric data and spaceborne stereoscopic photographs have been investigated and practically applied for topographic modeling of several high-latitudinal islands in the Russian High Arctic. Some specific factors limiting the modeling accuracy are discussed. A new concept of single-fringe interferogram is proposed and argued. An original method called stereophotoclinometry is developed and tested as a subsidiary tool providing additional reliable control data over polar ice caps