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USGS Landsat 8 集合 2 第 1 层级原始场景
Landsat 8 集合 2 第 1 层级 DN 值,表示经过缩放和校准的传感器端辐射度。数据质量最高的 Landsat 场景会被划分到第 1 层级,并且被视为适合进行时间序列处理分析。第 1 层级包括经过处理的第 1 级精确地形 (L1TP) 数据,具有以下特点: c2 global l8 landsat lc8 oli-tirs -
USGS Landsat 8 集合 2 第 1 层级和实时数据原始场景
Landsat 8 Collection 2 Tier 1 和实时数据 DN 值,表示经过缩放和校准的传感器发射亮度。数据质量最高的 Landsat 场景会被划分到第 1 层级,并且被视为适合进行时间序列处理分析。第 1 层级包括经过处理的 1 级精确地形 (L1TP)… c2 global l8 landsat lc8 nrt -
USGS Landsat 8 集合 2 Tier 1 和实时数据 TOA 反射率
Landsat 8 集合 2 Tier 1 和实时数据校准的顶层大气 (TOA) 反射率。校准系数会从图片元数据中提取。如需详细了解 TOA 计算,请参阅 Chander 等人 (2009) 的论文。数据质量最高的 Landsat 图像被划分为第 1 层级… c2 全球 l8 Landsat lc8 卫星图像 -
USGS Landsat 8 集合 2 第 2 层级原始场景
Landsat 8 集合 2 第 2 层级 DN 值,表示经过缩放和校准的传感器端辐射度。在处理过程中,如果场景不符合第 1 层级的条件,则会被分配到第 2 层级。这包括系统地形 (L1GT) 和系统 (L1GS) 处理的场景,以及不符合以下条件的任何 L1TP 场景: c2 global l8 landsat lc8 oli-tirs
Datasets tagged l8 in Earth Engine
[null,null,[],[[["\u003cp\u003eThis 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.\u003c/p\u003e\n"],["\u003cp\u003eLandsat 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.\u003c/p\u003e\n"],["\u003cp\u003eLandsat 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.\u003c/p\u003e\n"],["\u003cp\u003eReal-Time data is available for Tier 1 scenes in both raw Digital Number (DN) values and calibrated TOA reflectance.\u003c/p\u003e\n"],["\u003cp\u003eAll datasets provide global coverage and are calibrated to at-sensor radiance or reflectance.\u003c/p\u003e\n"]]],["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"],null,["# Datasets tagged l8 in Earth Engine\n\n-\n\n |---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### USGS Landsat 8 Collection 2 Tier 1 Raw Scenes](/earth-engine/datasets/catalog/LANDSAT_LC08_C02_T1) |\n | Landsat 8 Collection 2 Tier 1 DN values, representing scaled, calibrated at-sensor radiance. Landsat scenes with the highest available data quality are placed into Tier 1 and are considered suitable for time-series processing analysis. Tier 1 includes Level-1 Precision Terrain (L1TP) processed data that have ... |\n | [c2](/earth-engine/datasets/tags/c2) [global](/earth-engine/datasets/tags/global) [l8](/earth-engine/datasets/tags/l8) [landsat](/earth-engine/datasets/tags/landsat) [lc8](/earth-engine/datasets/tags/lc8) [oli-tirs](/earth-engine/datasets/tags/oli-tirs) |\n\n-\n\n |-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### USGS Landsat 8 Collection 2 Tier 1 and Real-Time data Raw Scenes](/earth-engine/datasets/catalog/LANDSAT_LC08_C02_T1_RT) |\n | Landsat 8 Collection 2 Tier 1 and Real-Time data DN values, representing scaled, calibrated at-sensor radiance. Landsat scenes with the highest available data quality are placed into Tier 1 and are considered suitable for time-series processing analysis. Tier 1 includes Level-1 Precision Terrain (L1TP) processed ... |\n | [c2](/earth-engine/datasets/tags/c2) [global](/earth-engine/datasets/tags/global) [l8](/earth-engine/datasets/tags/l8) [landsat](/earth-engine/datasets/tags/landsat) [lc8](/earth-engine/datasets/tags/lc8) [nrt](/earth-engine/datasets/tags/nrt) |\n\n-\n\n |------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### USGS Landsat 8 Collection 2 Tier 1 and Real-Time data TOA Reflectance](/earth-engine/datasets/catalog/LANDSAT_LC08_C02_T1_RT_TOA) |\n | Landsat 8 Collection 2 Tier 1 and Real-Time data calibrated top-of-atmosphere (TOA) reflectance. Calibration coefficients are extracted from the image metadata. See Chander et al. (2009) for details on the TOA computation. Landsat scenes with the highest available data quality are placed into Tier 1 ... |\n | [c2](/earth-engine/datasets/tags/c2) [global](/earth-engine/datasets/tags/global) [l8](/earth-engine/datasets/tags/l8) [landsat](/earth-engine/datasets/tags/landsat) [lc8](/earth-engine/datasets/tags/lc8) [satellite-imagery](/earth-engine/datasets/tags/satellite-imagery) |\n\n-\n\n |------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### USGS Landsat 8 Collection 2 Tier 2 Raw Scenes](/earth-engine/datasets/catalog/LANDSAT_LC08_C02_T2) |\n | Landsat 8 Collection 2 Tier 2 DN values, representing scaled, calibrated at-sensor radiance. Scenes not meeting Tier 1 criteria during processing are assigned to Tier 2. This includes Systematic terrain (L1GT) and Systematic (L1GS) processed scenes, as well as any L1TP scenes that do not ... |\n | [c2](/earth-engine/datasets/tags/c2) [global](/earth-engine/datasets/tags/global) [l8](/earth-engine/datasets/tags/l8) [landsat](/earth-engine/datasets/tags/landsat) [lc8](/earth-engine/datasets/tags/lc8) [oli-tirs](/earth-engine/datasets/tags/oli-tirs) |"]]