[[["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"]],[],[],["Landsat 7 data is categorized into Collection 2 Tier 1, Tier 1 and Real-Time, and Tier 2. All represent scaled, calibrated at-sensor radiance using DN values. Tier 1, with the highest data quality, suits time-series analysis and comprises Level-1 Precision Terrain (L1TP) processed scenes. Tier 2 includes scenes not meeting Tier 1 standards, including Systematic terrain (L1GT) and Systematic (L1GS) data. Tier 1 and Real-Time data are also available.\n"]]
