[[["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 provides Landsat 4 TM Collection 1 Tier 1 composites, generated from orthorectified scenes with top-of-atmosphere (TOA) reflectance. The composites, available from 1982 to 1993, calculate the Normalized Difference Vegetation Index (NDVI) from Near-IR and Red bands, ranging from -1.0 to 1.0. Composites are created over 32-day periods, with the most recent pixel value used. The data, provided by USGS, is in the public domain and should be cited accordingly. The dataset has been superseded by another.\n"]]