中国区域500米NDVI旬合成产品(TERRA星)
收藏地球大数据科学工程2024-03-04 收录
下载链接:
https://data.casearth.cn/sdo/detail/653f5f88819aec161b49294e
下载链接
链接失效反馈官方服务:
资源简介:
产品介绍:MODND1T即TERRA星中国500M NDVI旬合成产品,是由MODND1D计算得到,计算方法为取月内每旬的最大值。MODND1D由MOD09GA经过拼接、切割、投影转换、单位换算等过程加工而成。命名规范如下:AAABBCD. EEEEEEEEE. CN.FFF.GG****,比如:中国每日温度合成命名为:MYDLT1D.20010101.CN.LTD.V1.TIF;AAA:卫星(MOD&MYD);BB:参量(地表温度(LT)、NDV(ND)、EVI(EV)、SR(地表反射率));C:分辨率(Q(250米)、H(500米)、1(1000米));D:合成周期(D(每日)、F(5天合成),T(10天合成)、M(月合成)) l 注意:遇2月或大月,每月最后一个合成产品利用本月所有剩余天内的每日数据为输入。(比如平二月的5天合成产品实际数据输入为2月26、27、28三天);CN:中国区域合成 EEEEEEE:年年年年天天天(2010001) 注意:合成产品以每个合成产品输入数据的第一天作为产品对应时间;FFF:参量 LTD:白天地表温度 LTN:夜间地表温度 QCD:白天质量评价文件 QCN:夜间质量评价文件;GG:版本号;****:文件类型(TIF、jpg、txt)。
Product Introduction: MODND1T, namely the Terra China 500m NDVI dekad composite product, is derived from MODND1D. The calculation method is to take the maximum value of each dekad's daily data within a month. MODND1D is processed from MOD09GA through workflows including spatial mosaicking, clipping, projection transformation, unit conversion and other preprocessing steps.
The naming convention follows the format: AAABBCD. EEEEEEEEE. CN.FFF.GG****. For reference, the naming of China's daily land surface temperature composite product is: MYDLT1D.20010101.CN.LTD.V1.TIF. The meaning of each field is explained below:
1. AAA: Satellite platform (MOD&MYD)
2. BB: Parameter code (LT for Land Surface Temperature, NDV for NDVI, EV for EVI, SR for Surface Reflectance)
3. C: Spatial resolution (Q: 250 meters, H: 500 meters, 1: 1000 meters)
4. D: Composite period (D: Daily, F: 5-day composite, T: 10-day/dekad composite, M: Monthly composite)
Note: For February or months where the remaining days at the end of the month are insufficient for a full composite period, the final composite product of the month will use all remaining daily data of that month as input. For example, the 5-day composite product of a common year February will actually use data from February 26, 27 and 28 as input.
5. CN: China regional composite product
6. EEEEEEE: Year plus day of year (format: YYYYDDD, e.g., 2010001)
Note: The corresponding timestamp of the composite product is determined by the first day of the daily input data used to generate this composite product.
7. FFF: Parameter identifier. LTD: Daytime Land Surface Temperature; LTN: Nighttime Land Surface Temperature; QCD: Daytime Quality Assessment File; QCN: Nighttime Quality Assessment File
8. GG: Version number
9. ****: File extension (TIF, JPG, TXT)
提供机构:
中国科学院计算机网络信息中心
搜集汇总
数据集介绍

背景与挑战
背景概述
该数据集是中国区域的500米空间分辨率NDVI旬合成产品,基于TERRA卫星的MODIS数据,通过取月内每旬最大值的方法合成,用于监测植被变化。数据以GeoTiff格式提供,包含688个文件,总容量75.2 GB,适用于中国区域的植被指数研究,并需遵循指定的数据使用和引用规范。
以上内容由遇见数据集搜集并总结生成



