Leaf Area Index (LAI) is a basic variable reflecting vegetation growth in the terrestrial ecosystem, and plays an important role in carbon cycle, climate model, terrestrial ecosystem simulation and vegetation change monitoring. At present, there are many medium resolution global LAI products in the world, including MODIS, GEOV, GLASS LAI, etc., but they have limitations such as time and space discontinuity, product time span, accuracy, etc. Based on MODIS surface reflectance data, Dr. Ma Han of Professor Liang Shunlin's team generated GLASS Version 6 (V6) 250m leaf area index. This product overcomes the problems of low LAI quality and spatiotemporal discontinuity in long-term cloud or snow covered areas. It is a global LAI product with the highest spatial resolution and long time series.
File name: 205m GLASS LAI product is stored in GeoTIFF format. The file name is "GLASS01D01. yyyyddd. LAI_250M. tif", where yyyy represents the year and ddd represents Julian date, such as GLASS01D01.A2005001.LAI_ 250M. Tif represents this GeoTIFF document to describe the leaf area index of the upper reaches of the Yangtze River and southwest China on the first day of 2005.
Data reading method: All GeoTIFFs in the dataset can be directly opened with Arcgis.
Liang, S. (2022). GLASS 250m LAI products in the upper reaches of Yangtze River in China (2001-2020). Upper Yangtze River Scientific Data Center, (Download the reference：
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| East: 112.00 | West: 89.00 |
|---|---|
| South: 24.00 | North: 36.50 |
