[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],[],[],["This dataset, MODIS/MCD43A4_NDVI, provides the Normalized Difference Vegetation Index (NDVI) derived from MODIS/MCD43A4 surface reflectance composites. NDVI is calculated as (NIR - Red) / (NIR + Red), ranging from -1.0 to 1.0, available every 8 days between February 18, 2000, and March 14, 2017, at 463.313-meter pixel size. It's now superseded and its data has no restrictions on use. Google Earth Engine provides access, free for research, education, and nonprofit purposes.\n"]]