Geographic Information Writing Method of Fengyun Satellite Products Based on EASE-Grid Projection
Many of the FY-3 series meteorological satellite remote sensing product datasets in Fengyun Satellite Remote Sensing Data Service Network are processed using the Equal-Area Scalable Earth Grid(EASE-Grid)projection method,which requires high data pro-cessing capability for users in practical applications,and is not conducive to the provincial application of remote sensing product datasets.To address these issues,taking the snow water equivalent(SWE)datasets of FY3D as an example,we propose a method of geographic information writing in EASE-Grid projection product datasets using the programming.By constructing reference raster cells to geographic coordinates(GeographicCellsReference)and geographic information directory(GeoKeyDirectoryTag),geographic information is written into the data matrix and output in GeoTIFF format.The results show that the product data processed by the proposed method can accurately match with the vector files in terms of geographic information,reducing the difficulty of data analysis and processing.The proposed method is applicable to all three different projection methods of EASE-Grid and can improve the provincial-level scientific research and application of satellite remote sensing product datasets.
satellite remote sensingequal-area scalable earth griddata projectiondatasetsgeographic information
万方数据
维普
