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USGS Landsat 8 Collection 2 Tier 1 およびリアルタイム データ TOA 反射率
Landsat 8 Collection 2 Tier 1 とリアルタイム データの地上(TOA)反射率が補正されています。キャリブレーション係数は画像メタデータから抽出されます。TOA の計算の詳細については、Chander et al.(2009)をご覧ください。利用可能なデータ品質が最も高い Landsat シーンは Tier 1 に分類されます。 c2 global l8 landsat lc8 satellite-imagery
[null,null,[],[[["This page provides access to USGS Landsat 8 Collection 2 datasets, including Tier 1 and Tier 2 Raw Scenes, as well as Tier 1 and Real-Time data in both Raw and Top-of-Atmosphere (TOA) Reflectance formats."],["Landsat 8 Collection 2 Tier 1 data represents the highest quality scenes suitable for time-series analysis and includes Level-1 Precision Terrain (L1TP) processed data."],["Landsat 8 Collection 2 Tier 2 data contains scenes that did not meet Tier 1 criteria and includes Systematic Terrain (L1GT) and Systematic (L1GS) processed scenes."],["Real-Time data is available for Tier 1 scenes in both raw Digital Number (DN) values and calibrated TOA reflectance."],["All datasets provide global coverage and are calibrated to at-sensor radiance or reflectance."]]],["Landsat 8 Collection 2 data offers raw scenes in Tier 1 and Tier 2, with Tier 1 representing the highest quality data, suitable for time-series analysis and processed to Level-1 Precision Terrain (L1TP). Tier 2 includes lower quality scenes such as Systematic terrain (L1GT) and Systematic (L1GS). Additionally, Tier 1 and Real-Time data provide scaled, calibrated at-sensor radiance and calibrated top-of-atmosphere (TOA) reflectance.\n"]]