[general]
name=Land Surface Temperature
qgisMinimumVersion=3.0
description=Suite of 16 Processing algorithms for complete Land Surface Temperature retrieval from Landsat 5/7/8 and ASTER thermal imagery
version=1.0
author=Milton Isaya
email=miltonisaiah@gmail.com

about=This plugin provides a complete, step-by-step workflow for deriving Land Surface Temperature (LST) from satellite thermal imagery using 16 algorithms in the QGIS Processing toolbox. It supports Landsat 5 TM, Landsat 7 ETM+, Landsat 8 TIRS, and ASTER sensors. Input imagery can be obtained free of charge from USGS EarthExplorer (earthexplorer.usgs.gov) or NASA Earthdata (earthdata.nasa.gov).

    Typical applications include urban heat island analysis, drought and vegetation stress monitoring, agricultural water management, wildfire burn severity assessment, and climate and land use change studies.

    Workflow:
    1. Compute NDVI from red and near-infrared bands
    2. Convert thermal band digital numbers to spectral radiance
    3. Convert radiance to at-sensor brightness temperature using K1/K2 calibration constants
    4. Estimate land surface emissivity (LSE) using NDVI-based classification
    5. Retrieve land surface temperature using one of six LST algorithms

    Available algorithms:
    Vegetation Indices  : Landsat NDVI, ASTER NDVI
    Radiance            : TM Radiance (L5), ETM+ Radiance (L7), TIRS Radiance (L8), ASTER Radiance
    Brightness Temp.    : Brightness Temperature (all sensors)
    Emissivity          : Zhang LSE, NDVI Threshold LSE, ASTER LSE
    LST                 : Planck Equation, Mono-Window Algorithm (Qin et al. 2001),
                          Single Channel Algorithm (Jimenez-Munoz & Sobrino 2003),
                          Radiative Transfer Equation, ASTER Single Channel,
                          ASTER Split-Window

    Temperature output available in Kelvin, Celsius, or Fahrenheit.

tracker=https://github.com/miltonisaya/landSurfaceTemperature/issues
repository=https://github.com/miltonisaya/landSurfaceTemperature

changelog=
    1.0 - Migrated to QGIS 3 Processing Framework. All 16 algorithms are now
          available in the Processing toolbox. Removed QGIS 2 dialog-based UI.
          Output format is determined from the selected file extension.

tags=raster,temperature,land surface temperature,LST,remote sensing,landsat,aster,ndvi,emissivity,thermal,satellite,brightness temperature
homepage=https://github.com/miltonisaya/landSurfaceTemperature
category=Raster
icon=icons/algorithms.png
hasProcessingProvider=yes
experimental=False
deprecated=False
