Simulation Tab
The Simulation tab contains tools to help you prepare your simulations. Here, you will find four subtabs: General, Domain, Data, and Run. In the General subtab you can create and open existing GIS4WRF projects. The Domain, Data and Run subtabs contain tools to help you with the steps to define and run a WRF simulation such as defining datasets to use in your simulation, configure namelists and run WPS and WRF programs. Details on how to use these tools and examples are included in the documentation and tutorials section.
General
Used to create a new, or to open an existing GIS4WRF project. By default a project is created inside the GIS4WRF default working directory.
Domains
Used to easily create, import and, export WRF domains through a GUI interface. This configuration will be used to generate the relevant sections in namelist.wps
and namelist.wrf
.
Import/Export
Import from namelist
button: reads a namelist.wps
file and populate the fields
Export to namelist
button: exports domain created to a namelist.wps
file
Map Type
GCS/Projection
dropdown: allows users to define the type Geographical Coordinate System (GCS) or Projection to use for creating the domain. Current supported GCS/Projections are Latitude/Longitude
and Lambert
. If Lambert option is selected, the two true latitudes (True Latitude 1
and True Latitude 2
) are required.
Set Map CRS
button: set QGIS Project Coordinate Reference System (CRS) based on selected GCS/Projection
Horizontal Grid Spacing
Domain horizontal grid spacing in decimal degrees (°) for Latitude/Longitude
or in meters (m) for Lambert
Grid Extent Calculator
Set to Canvas Extent
allows the user to set the domain center-point Longitude
, Latitude
, and the grid extent Horizontal
and Vertical
to the QGIS canvas extent. The extent can be modified in Advanced Configuration
(see next section).
Set to Active Layer Extent
allows the user to set the domain center-point Longitude
, Latitude
, and the grid extent Horizontal
and Vertical
to the extent of the active layer in QGIS. The extent can be modified in Advanced Configuration
(see next section).
Advanced Configuration
When checked, it enables the user to manually set the center-point latitude and longitude in decimal degrees (°), and the horizontal and vertical gird extent for the inner-most domain.
Enable Parenting
When checked, it enables the user to create nested-type domains. The number of parent domains can be selected (min:1, max:21). The user must set the child-to-parent ratio
as well as the padding. The horizontal resolution for the parent domain is calculated automatically based on the resolution of the child domain. NB: GIS4WRF calculated nesting opposite to the standard way of creating domains in WRF -- parents domains are created based on the location, extent and resolution of the child domain.
Data
Used to set datasets to be added in the configuration of namelists.
Geographical Data
For each domain, the type of geographical data is selected by clicking on the +
button next to each domain.
Optionally, under Add Dataset
, a new dataset can be imported to be used in the simulation.This configuration will be used to generate the relevant section in namelist.wps
and GEOGRID.TBL
.
Meteorological Data
The meteorological data is shown under the Available Dataset
and added by selecting the dataset and time range to be used in the simulation, and clicking on the Use dataset selection from list
button. This configuration will be used to generate the relevant sections in namelist.wps
and namelist.wrf
.
Run
The run tab is used to run WPS and WRF programs with the the configuration generated by GIS4WRF. Sections of namelists such as physics options can be edited by clicking on the Open Configuration
button. The output is displayed in the integrated Program output
window.