DN-Werte der Landsat 9-Sammlung 2, Stufe 1, die die skalierte, kalibrierte Strahlung am Sensor darstellen. Landsat-Szenen mit der höchsten verfügbaren Datenqualität werden in Stufe 1 eingestuft und gelten als geeignet für die Analyse der Zeitreihenverarbeitung. Stufe 1 umfasst verarbeitete Level-1-Precision-Terrain-Daten (L1TP), die…
DN-Werte der Landsat 9-Sammlung 2, Stufe 2, die die skalierte, kalibrierte Strahlung am Sensor darstellen. Szenen, die während der Verarbeitung nicht die Kriterien für Tier 1 erfüllen, werden Tier 2 zugeordnet. Dazu gehören Szenen mit systematischem Gelände (L1GT) und systematischen (L1GS) Verarbeitungen sowie alle L1TP-Szenen, die nicht …
Landsat 9 Collection 2 Tier 2 – kalibrierte TOA-Reflexion (Top of Atmosphere, Atmosphärenrand) Die Kalibrierungsfaktoren werden aus den Bildmetadaten extrahiert. Weitere Informationen zur Berechnung der TOA finden Sie in Chander et al. (2009). Szenen, die während der Verarbeitung nicht die Kriterien für Tier 1 erfüllen, werden Tier 2 zugeordnet. Dazu gehören systematische …
[null,null,[],[[["\u003cp\u003eThe datasets provide Landsat 9 Collection 2 data, including raw scenes at different processing tiers (Tier 1 and Tier 2) and Tier 2 top-of-atmosphere (TOA) reflectance.\u003c/p\u003e\n"],["\u003cp\u003eTier 1 scenes represent the highest quality data suitable for time-series analysis, while Tier 2 scenes may have limitations.\u003c/p\u003e\n"],["\u003cp\u003eLandsat 9 data includes global coverage and utilizes the Operational Land Imager (OLI) and Thermal Infrared Sensor (TIRS).\u003c/p\u003e\n"],["\u003cp\u003eRaw scenes provide scaled, calibrated at-sensor radiance (DN values), while TOA reflectance data is calibrated to represent reflectance at the top of the atmosphere.\u003c/p\u003e\n"]]],["Landsat 9 Collection 2 data is categorized into Tiers 1 and 2. Tier 1 includes scenes with the highest data quality, suitable for time-series analysis, and are represented by Level-1 Precision Terrain (L1TP) processed data. Tier 2 data, including Systematic terrain (L1GT) and Systematic (L1GS) processed scenes, do not meet Tier 1 standards. Tier 2 also includes top-of-atmosphere (TOA) reflectance data with calibration coefficients extracted from image metadata.\n"],null,["# Datasets tagged l9 in Earth Engine\n\n-\n\n |---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### USGS Landsat 9 Collection 2 Tier 1 Raw Scenes](/earth-engine/datasets/catalog/LANDSAT_LC09_C02_T1) |\n | Landsat 9 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) [l9](/earth-engine/datasets/tags/l9) [landsat](/earth-engine/datasets/tags/landsat) [lc9](/earth-engine/datasets/tags/lc9) [oli-tirs](/earth-engine/datasets/tags/oli-tirs) |\n\n-\n\n |------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### USGS Landsat 9 Collection 2 Tier 2 Raw Scenes](/earth-engine/datasets/catalog/LANDSAT_LC09_C02_T2) |\n | Landsat 9 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) [l9](/earth-engine/datasets/tags/l9) [landsat](/earth-engine/datasets/tags/landsat) [lc9](/earth-engine/datasets/tags/lc9) [oli-tirs](/earth-engine/datasets/tags/oli-tirs) |\n\n-\n\n |-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | [### USGS Landsat 9 Collection 2 Tier 2 TOA Reflectance](/earth-engine/datasets/catalog/LANDSAT_LC09_C02_T2_TOA) |\n | Landsat 9 Collection 2 Tier 2 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. Scenes not meeting Tier 1 criteria during processing are assigned to Tier 2. This includes Systematic ... |\n | [c2](/earth-engine/datasets/tags/c2) [global](/earth-engine/datasets/tags/global) [l9](/earth-engine/datasets/tags/l9) [landsat](/earth-engine/datasets/tags/landsat) [lc9](/earth-engine/datasets/tags/lc9) [satellite-imagery](/earth-engine/datasets/tags/satellite-imagery) |"]]
