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 …
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 …
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 …
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],[],[[["The datasets provide Landsat 9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."],["Tier 1 scenes represent the highest quality data suitable for time-series analysis, while Tier 2 scenes may have limitations."],["Landsat 9 data includes global coverage and utilizes the Operational Land Imager (OLI) and Thermal Infrared Sensor (TIRS)."],["Raw scenes provide scaled, calibrated at-sensor radiance (DN values), while TOA reflectance data is calibrated to represent reflectance at the top of the atmosphere."]]],[]]
