The second, known as Smos, is measuring soil moisture and ocean salinity, and was launched in November.
BBC: Esa's Cryosat ice mission given launch date
Smos aims to see steps of about 4% on this range across 50km-wide segments of the Earth's surface.
BBC: Smos 'space chopper' returns first global maps
应用推荐
模块上移
模块下移
不移动