青藏高原MODIS Terra地表反射率产品(2021)
收藏国家青藏高原科学数据中心2023-11-06 更新2024-03-01 收录
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https://data.tpdc.ac.cn/zh-hans/data/c73404fc-94d4-4844-8d89-da0fc5ea3391
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资源简介:
1)数据内容:本数据集包含2021年青藏高原地区MODIS长时序地表反射率产品,该产品空间分辨率为500米,每8天生产一期,全年共46期,每期数据共包含13个文件:7个地表反射率文件,每个文件代表一个单独的波段,各波段的光谱范围为:*sur_refl_b01: 620-670nm, *sur_refl_b02: 841-876nm, *sur_refl_b03: 459-479nm, *sur_refl_b04: 545-565nm, *sur_refl_b05: 1230-1250nm, *sur_refl_b06: 1628-1652nm, *sur_refl_b07: 2105-2155nm; 3个观测角度文件,分别是: *sur_refl_szen: Solar Zenith Angle, *sur_refl_vzen: View Zenith Angle *sur_refl_raz: Relative Azimuth Angle; 2个质量控制文件分别是: *sur_refl_state_500m, *sur_refl_500m; 1个时间说明文件: *sur_refl_day_of_year。 2)数据来源及加工方法:主要来自第六版MODIS Terra MOD09A1产品集,青藏高原地区地表反射率产品是通过USGS网站下载,利用GDAL插件进行拼接和转投影处理; 3)数据质量描述:sur_refl_qc_500m和sur_refl_state_500m为数据质量文件,以有效位编码方式存储。4)数据应用成果及前景:在森林、水资源、气候变化等领域长时序信息挖掘分析方面具有重要的应用价值。
1) Data Content: This dataset contains MODIS long-time series surface reflectance products for the Qinghai-Tibet Plateau in 2021. The product has a spatial resolution of 500 meters, with one batch produced every 8 days, totaling 46 batches per year. Each batch of data includes 13 files in total: 7 surface reflectance files, each representing a separate band, with the spectral ranges of each band as follows: *sur_refl_b01: 620-670 nm, *sur_refl_b02: 841-876 nm, *sur_refl_b03: 459-479 nm, *sur_refl_b04: 545-565 nm, *sur_refl_b05: 1230-1250 nm, *sur_refl_b06: 1628-1652 nm, *sur_refl_b07: 2105-2155 nm; 3 observation angle files, which are: *sur_refl_szen: Solar Zenith Angle, *sur_refl_vzen: View Zenith Angle, *sur_refl_raz: Relative Azimuth Angle; 2 quality control files: *sur_refl_state_500m, *sur_refl_500m; 1 time description file: *sur_refl_day_of_year. 2) Data Source and Processing Method: The data mainly comes from the Version 6 MODIS Terra MOD09A1 product collection. The surface reflectance products for the Qinghai-Tibet Plateau were downloaded from the USGS website, and then stitched and reprojected using the GDAL plugin. 3) Data Quality Description: sur_refl_qc_500m and sur_refl_state_500m are data quality files stored in a bit-encoded format. 4) Data Application Achievements and Prospects: It has important application value in the mining and analysis of long-time series information in fields such as forestry, water resources and climate change.
提供机构:
贡成娟
创建时间:
2023-04-08
搜集汇总
数据集介绍

背景与挑战
背景概述
该数据集为2021年青藏高原地区MODIS Terra地表反射率产品,包含每8天一期的长时序数据,空间分辨率为500米,共46期,每期包含13个文件。数据来源于第六版MODIS Terra MOD09A1产品集,适用于森林、水资源、气候变化等领域的长时序信息挖掘分析。
以上内容由遇见数据集搜集并总结生成



