[[["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, LANDSAT/LT4_L1T_ANNUAL_NDVI, from USGS, is a collection of Landsat 4 TM annual composites derived from Level L1T orthorectified scenes. The Normalized Difference Vegetation Index (NDVI) is calculated using Near-IR and Red bands, with values ranging from -1 to 1. Composites are created yearly, including all images from that year, with the most recent pixel used. This collection covers 1982-1993 and is now complete and deprecated, users should now switch to Collection 1-based datasets. Data is public domain and free for research, education, and nonprofit use.\n"]]