Seasonal Dynamics of the Land-Surface Characteristics in Arid Regions Retrieved by Optical and Microwave Satellite Data oleh Ying Tian, Kurt Ackermann, Christopher McCarthy, Troy Sternberg, Myagmartseren Purevtseren, Che Limuge, Katsuro Hagiwara, Kenta Ogawa, Satoru Hobara, Buho Hoshino