一款用于中国各省份的地图数据，仅供参考，用于气象、水文、海洋、地质等多领域。-A map data for China s provinces, for reference only, for many fields such as meteorology, hydrology, ocean, geology.

结合在海洋数据网站上下载的数据，该程序能够绘制出全球温跃层图像(The code can draw a map of global thermocline according to the data from the web of ocean data station.)