Note

Need help? Please let us know in the UMEP Community.

4.9. Urban Heat Island: TARGET

Note

This plugin is still experimental. Please report any issues to our code repository.

  • Contributors:

    Name

    Institution

    Fredrik Lindberg

    Gothenburg
  • Introduction:

    TARGET (The Air-temperature Response to Green blue-infrastructure Evaluaition Tool) is a simple modelling framework used to examine intra urban climate (102 m resolution). It has specifically been developed as an efficient, easy-to-use model albe to investigate heat mitigation effects of green and blue infrastructure within urban areas but can also be used to model the canopy urban heat island (Broadbent et al. 2019)

    TARGET should be automativally installed when UMEP for Processing is installed. In case if this does not happen, the target-py library can be installed with the command:

    pip install target-py

    as decribed in Getting started.

  • Related Preprocessors, Processors and Postprocessors

    Urban Land Cover: Land Cover Fraction (Grid), Urban Morphology: Morphometric Calculator (Grid), Urban Heat Island: TARGET Prepare, Urban Heat Island: TARGET Analyser

  • Dialog box
    ../_images/TARGETInterface.jpg

    Fig. 4.13 The dialog for the TARGET tool. Click on image for enlargement.

  • Parameters

    Path to folder where TARGET input files are located (Site name folder)

    Path that contains all files ann folders needed to run the TARGET model. These files and folders are generated by TARGETPrepare.

    Vector polygon grid

    A vectory polygon grid that depicts the modelling area(s). This should be the same polygon layer that was used in TARGETPrepare.

    Run name

    Name for this particular model run. This name will appear in the settings folder and the output files.

    Start date of simulation

    Date that simulation will start from. TARGET need at least 24h spin-up.

    Start date for period of interest

    Date that simulation will start from. Data will be saved from this date.

    End date for period of interest

    Date that simulation will end.

    Input meteorological file (UMEP-formatted textfile)

    Input meteorological data specifically formatted to be used in UMEP. This specific format can be created using UMEP -> Pre-processing -> Meteorological data -> Prepare existing data.

    Estimate incoming longwave radiation from air temperature and realtive humidity.

    If incoming longwave radiation is missing from the forcing data, tick this box and Ldown will be calculated according to Loridan et al. 2011.

    Save output as .csv text files

    Output is also automatically saved in .npy-format, a standard binary file used by NumPy in Python. Tick this in if you are interested in continuing analysis from this tool using csv-files coming directly out from the model.

    Save output in UMEP specific format (required for the TARGET Analyzer)

    Tick this in if you like to use the analyzers connected to the TARGET model in the Post-processor.
  • Run

    Starts the calculations.

  • Help

    Link to this manual page.

  • Close

    Closes the plugin.

  • Remarks

    • If you like to see more details during model execution, open the Python Console in QGIS.