MODIS/Aqua Surface Reflectance Daily L2G Global 250m SIN Grid V006
收藏Global Change Master Directory (GCMD)2023-07-31 更新2026-04-25 收录
下载链接：
https://cmr.earthdata.nasa.gov/search/concepts/C2763370202-LPCLOUD.html
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资源简介：
The MYD09GQ Version 6 data product was decommissioned on July 31, 2023. Users are encouraged to use the [MYD09GQ Version 6.1](https://doi.org/10.5067/MODIS/MYD09GQ.061) data product.
The MYD09GQ Version 6 product provides an estimate of the surface spectral reflectance of Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) 250 meter (m) bands 1 and 2, corrected for atmospheric conditions such as gasses, aerosols, and Rayleigh scattering. Along with the 250 m bands are the Quality Assurance (QA) layer and five observation layers. This product is intended to be used in conjunction with the quality and viewing geometry information of the 500 m product (MYD09GA).
Known Issues
* The Collection 6 MODIS Land Surface Reflectance product (MYD09) may [incorrectly flag retrievals as ‘High Aerosol’](https://landweb.modaps.eosdis.nasa.gov/displayissue?id=174) over brighter surfaces and at higher view angles. This will impact the downstream MODIS BRDF/Albedo (MCD43) and Vegetation Index (MOD13 and MYD13) data products which use the aerosol quantity flag to screen out high aerosol values.
* [Corrections](https://landweb.modaps.eosdis.nasa.gov/data/userguide/LSRHighAerosolFlagFinal.pdf) were implemented in Collection 6.1 reprocessing.
* For complete information about known issues please refer to the [MODIS/VIIRS Land Quality Assessment website](https://landweb.modaps.eosdis.nasa.gov/knownissue?sensor=MODIS&sat=Aqua&as=6).
提供机构：
LPCLOUD
创建时间：
2023-07-31
