[[["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 Landsat 8 dataset, provided by USGS, contains 8-day composites of the Normalized Difference Vegetation Index (NDVI) derived from orthorectified scenes using top-of-atmosphere reflectance. The data, spanning from April 7, 2013, to April 23, 2017, has been discontinued as of May 1, 2017, and users are advised to switch to Collection 1 data. The NDVI is calculated from Near-IR and Red bands, with values ranging from -1 to 1, and is provided at 30-meter resolution.\n"]]