Isostasy of the Southern Oceans

小行星9521518 国外的雷达高度计、地球观测卫星和欧洲遥感卫星1号航天器以高精度和高空间分辨率绘制了世界上几乎所有海洋的海洋重力场图。 在15至700公里的波段，重力异常的变化与海底地形高度相关。 由于南大洋的许多地区都是稀疏的，这些新的卫星高度计数据揭示了许多以前未调查过的特征。 这项工作的目标是积累所有可用的深度探测，使用短波长卫星重力信息插入船舶探测之间，提取地形/重力传递函数的区域变化，并将其与构造省，并检查地形/重力传递函数的变化在扩张脊的扩张率。 ***

9521518 Sandwell Radar altimeters abroad the Geosat and ERS-1 spacecraft have mapped the marine gravity field over nearly all of the world's oceans to a high accuracy and spatial resolution. In the wavelength band 15 to 700 km, variations in gravity anomaly are highly correlated with seafloor topography. Since many southern ocean areas are sparsely sorveyed these new satellite altimeter data reveal many previously unsurveyed features. The objectives of this work are to accumulate all available depth soundings, use the short wavelength satellite gravity information to interpolate between ship soundings, extract regional variations in the topography/gravity transfer function and relate them to tectonic province, and examine variations in topography/gravity transfer function at spreading ridges with regard to spreading rate. ***