A new MODIS snow cover extent product over China(2000-2020)

A new MODIS snow cover extent product over China(2000-2020)


For the snow distribution area in China, we prepared a MODIS day-by-day cloud-free snow area dataset with a spatial resolution of 500m from 2000 to 2020 based on the MODIS reflectivity product MOD/MYD09GA, using a decision tree snow discriminant algorithm for different surface types and a vacancy filling algorithm such as a spatiotemporal interpolation algorithm for the hidden Markov random field model. The dataset is stored in HDF5 file format, and each HDF5 file contains 18 data elements, which include data values, data start date, latitude, and longitude. Meanwhile, for a quick preview of snow distribution, the day-by-day file contains snow area thumbnails stored in jpg format. This dataset will be continuously supplemented and improved based on real-time satellite remote sensing data and algorithm updates (currently through December 2020), and will be shared in a fully open sharing format.

数据使用方法

File naming: The MODIS' cloud-free day-by-day snow area product includes HDF files and JPG thumbnails.
Data reading method:
HDF files: The HDF5 file includes the following fields: File_Overview, Product_ID, Product_Version, Product_Area, Product_Start_Date, Product_Cycle, Satellite Name, Geographic Coordinate System, Resolution_Unit, Latitude_Resolution, Latitude_Min, Latitude_Max, Longitude_Resolution, Longtitude_Min, Longitude_Max, Remark, Day_snow_cover_area:Cloud free snow cover product.
Jpg thumbnails: According to MODIS snow area scientific dataset for fast vision judgment, file name NIEER_CGF MODIS_SCE__********_DAILY_500m_V02, ******** is the date.


本数据要求的引用方式
数据的引用

HAO Xiaohua. (2021). A new MODIS snow cover extent product over China(2000-2020). 时空三极环境大数据平台, 2021. doi: 10.11888/Snow.tpdc.271387.
[Hao, X. (2021). A new MODIS snow cover extent product over China(2000-2020). A Big Earth Data Platform for Three Poles, 2021]

使用本数据时必须引用“文章的引用”中列出的文献,并进行数据的引用

使用条款

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License: This work is licensed under an Attribution 4.0 International (CC BY 4.0)



资助项目

科技基础资源调查项目(2017FY100502)

This work was jointly supported by the National Key Research and Development Program of China

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关注
关键词
空间位置
East: 142.00 West: 72.00
South: 16.00 North: 56.00
数据细节
  • 时间分辨率:Daily
  • 空间分辨率:100m - 1km
  • 大小:72704.0 MB
  • 浏览:591 次
  • 下载量:26 次
  • 数据时间范围:2000-02-28 至 2020-12-31
  • 共享方式: 开放获取
  • 元数据更新时间:2021-09-24
联系信息

HAO Xiaohua

分发方: 时空三极环境大数据平台

Email: poles@itpcas.ac.cn

导出元数据