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USGS Landsat 9 Collection 2 Tier 1 Raw Scenes
Valori DN di Livello 1 della raccolta 2 di Landsat 9, che rappresentano la radianza al sensore calibrata e scalata. Le scene Landsat con la qualità dei dati più elevata disponibile sono inserite nel livello 1 e sono considerate adatte per l'analisi dell'elaborazione delle serie temporali. Il livello 1 include i dati elaborati del livello 1 di precisione del terreno (L1TP) che hanno … c2 global l9 landsat lc9 oli-tirs -
USGS Landsat 9 Collection 2 Tier 2 Raw Scenes
Valori DN di Livello 2 della raccolta 2 di Landsat 9, che rappresentano la radianza al sensore calibrata e scalata. Le scene che non soddisfano i criteri del livello 1 durante l'elaborazione vengono assegnate al livello 2. Sono incluse le scene elaborate con dati del terreno sistematico (L1GT) e sistematico (L1GS), nonché eventuali scene L1TP che non … c2 global l9 landsat lc9 oli-tirs -
Riflettanza TOA di Livello 2 della raccolta 2 di Landsat 9 del USGS
Riflettività misurata sulla sommità dell'atmosfera (TOA) calibrata di Landsat 9 Collection 2 di Livello 2. I coefficienti di calibrazione vengono estratti dai metadati delle immagini. Per informazioni dettagliate sul calcolo dell'altezza del punto di osservazione, consulta Chander et al. (2009). Le scene che non soddisfano i criteri del livello 1 durante l'elaborazione vengono assegnate al livello 2. Sono inclusi i seguenti tipi di … c2 global l9 landsat lc9 satellite-imagery
Datasets tagged l9 in Earth Engine
[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) |"]]