A global daily seamless 9-km Vegetation Optical Depth (VOD) product from 2010 to 2021

I) DESCRIPTION: · A global daily seamless 9-km Vegetation Optical Depth (VOD) product is generated through gap-filling and spatiotemporal fusion model. This daily products start from Jan 01, 2010 to Jul 31, 2021 (about 20GB memory after uncompressing all zip files). · To further validate the effectiveness of these products, three verification ways are employed as follow: 1) Time series validation; 2) Simulated missing-region validation; And 3) Data comparison validation. · It is important to note that the original data contain missing dates, and these corresponding gaps are also present in our dataset. II) DATA FORMATTING AND FILE NAMES Data from 2010 to 2021 are stored separately into folders for the corresponding years, with each folder containing daily `.mat` files. The naming convention for the data is “YYYYXXZZ,” where YYYY is the 4-digit year, XX is the 2-digit month, and ZZ is the 2-digit date. The geographic scope is global and the grid size is 4000*2000. MATFILES (.mat): The folders with matfiles contain individual files for: 1. Vegetation Optical Depth: VOD_seamless_9km_ YYYYXXZZ.mat 2. Latitude/Longitude: VOD_9km_Coordinates.mat