[1]韩书新,安英玉,高 昂*,等.EASE-Grid 投影风云卫星产品地理信息写入方法[J].计算机技术与发展,2024,34(03):76-82.[doi:10. 3969 / j. issn. 1673-629X. 2024. 03. 012]
　HAN Shu-xin,AN Ying-yu,GAO Ang*,et al.Geographic Information Writing Method of Fengyun Satellite Products Based on EASE-Grid Projection[J].,2024,34(03):76-82.[doi:10. 3969 / j. issn. 1673-629X. 2024. 03. 012]

点击复制

EASE-Grid 投影风云卫星产品地理信息写入方法()

分享到：

《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:

34

期数:

2024年03期

页码:

76-82

栏目:

软件技术与工程

出版日期:

2024-03-10

文章信息/Info

Title:

Geographic Information Writing Method of Fengyun Satellite Products Based on EASE-Grid Projection

文章编号:

1673-629X(2024)03-0076-07

作者:

韩书新¹ ; 安英玉² ; 高 昂^3* ; 于 敏¹ ; 秦 铁⁴ ; 王志晓⁵

1. 黑龙江省生态气象中心,黑龙江 哈尔滨 150030;

2. 黑龙江省人民政府人工降雨办公室,黑龙江 哈尔滨 150030;

3. 国家卫星气象中心,北京 100081;

4. 黑龙江省气象局机关服务中心,黑龙江 哈尔滨 150030;

5. 西安理工大学 计算机科学与工程学院,陕西 西安 710048

Author(s):

HAN Shu-xin1 ; AN Ying-yu2 ; GAO Ang3* ; YU Min1 ; QIN Tie4 ; WANG Zhi-xiao5

1. Heilongjiang Ecology Meteorological Centre,Harbin 150030,China;

2. Artificial Precipitation Office of Heilongjiang Provincial People’s Government,Harbin 150030,China;

3. National Satellite Meteorological Center,Beijing 100081,China;

4. Heilongjiang Meteorological Bureau Office Service Centre,Harbin 150030,China;

5. School of Computer Science and Engineering,Xi’ an University of Technology,Xi’ an 710048,China

关键词:

卫星遥感; 等面积可伸缩地球网格; 数据投影; 数据集; 地理信息

Keywords:

satellite remote sensing; equal-area scalable earth grid; data projection; datasets; geographic information

分类号:

TP79

DOI:

10. 3969 / j. issn. 1673-629X. 2024. 03. 012

摘要:

风云卫星遥感数据服务网的卫星遥感产品数据集中,风云三系列气象卫星遥感产品数据集中很多采用的是等面积可伸缩地球网格( EASE-Grid) 投影方式进行处理,实际应用中对使用者具有较高的数据处理能力要求,不利于遥感产品数据集的省级应用。 基于数据集使用中的这些问题,该文以 FY3D 雪水当量数据集产品为例,采用程序化方法对 EASE-Grid 投影产品数据集的地理信息进行写入,通过构建地理坐标系参考对象和地理信息目录,将数据矩阵中写入地理信息并以 GeoTiff 格式文件输出。 结果表明,经过该方法处理过的产品数据可与矢量文件实现准确的经纬度信息的匹配,降低了数据分析处理的难度。 该方法具有较好的适用性,对于 EASE-Grid 的三种不同的投影方式均适用,可在一定程度上提高卫星遥感产品数据集的省级科研与应用水平。

Abstract:

Many of the FY- 3 series meteorological satellite remote sensing product datasets in Fengyun Satellite Remote Sensing DataService Network are processed using the Equal-

Area Scalable Earth Grid ( EASE-Grid) projection method,which requires high data processing 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 geographicinformation writing in EASE - Grid projection product datasets using the programming. By constructing reference raster cells togeographic coordinates ( Geographic　CellsReference ) and geographic information directory ( GeoKeyDirectoryTag ) , geographicinformation is written into the data matrix and output in GeoTIFF format. The results show that the product data processed by theproposed method can accurately match with the vector files in terms of geographic information,reducing the difficulty of data analysis andprocessing. 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.

常用功能