SWG - Satellite Water Gauging (a Python 2.7 program for determining water level from satellite data)

SWG stands for Satellite Water Gauging and is a multi-purpose program written in Python 2.7 for extracting, processing, analysing and displaying satellite altimetry (SA) data from a number of satellites including Envisat, Jason, Saral, Cryosat and Sentinel-3. I started building SWG in 2013 while spending a year at the Legos (Laboratoire d’Étude Géophysiques et Océanographiques Spatiales) as a platform to implement and test new approaches of SA data. It was always my intention to make the SWG codes available to whom is interested but it took me a few years to have a first “user friendly” version with all the necessary utilities.SWG即卫星水位测量（Satellite Water Gauging），是一款基于Python 2.7开发的多用途程序，可用于提取、处理、分析并展示包括Envisat、Jason、Saral、Cryosat及Sentinel-3在内的多颗卫星的卫星测高（Satellite Altimetry，SA）数据。笔者于2013年在法国空间地球物理与海洋学实验室（Legos，Laboratoire d’Étude Géophysiques et Océanographiques Spatiales）访学一年期间启动SWG的开发工作，将其作为实现与测试卫星测高数据新型处理方法的实验平台。笔者初衷便是将SWG代码开放给所有感兴趣的使用者，但历经数年才完成首个集成全部必要工具的“用户友好型”版本。