WRF Domain WizardThe WRF Preprocessing System GUI

Jeff S Smith Paula McCaslin and Mark Govett

AMS 2008 Presentation

What is WPS? WRF Preprocessing System (WPS) Developed at NCAR for WRF ARW and NMM Released with WRF V2.2 and replaces the previous WRF

SI (standard initialization) WPS is Three Programs

geogrid.exe – localizes the domain defined in namelist.wps and creates a NetCDF output file. It extracts global geographical data (e.g. soil moisture, vegetation, albedo, etc.) and maps it to the domain projection.

ungrib.exe -- decodes and extracts atmospheric parameters from GRIB files in order to initialize WRF

metgrid.exe -- combines the meteorological data from ungrib with the NetCDF output from geogrid in order to produce a series of NetCDF files that are used to initialize WRF.

What is WRF Domain Wizard (WDW)?

Successor to the WRFSI GUI and is the graphical user interface for WPS Note: the older WRFSI GUI is not compatible with WPS

Standalone application or run from within WRF Portal WDW Features

Supports ARW and NMM Define the region and projection of a domain on map Define any nests Write information to namelist.wps Run the WPS programs Visualize the netCDF output files

Domain Wizard Technical Info

Software is written in Java Requires Java 1.4 or later; Java 1.5 is required for

visualization Java 1.6 is recommended for best performance Runs either on a local computer or remote computer

(uses SSH-2 and SFTP for remote connections) Can run from webpage as a Java Web Start app or

downloaded and run from the command line 384 MB of RAM (memory) available

1024 x 768 (or better) video display

Domain Wizard Architecture and Flow

Disk files

Java Virtual Machineuser’s computer (linux, windows, etc.)

WRF Domain Wizard

namelist.wps, WPS data

SSH I/OLocal I/O

geogrid

ungrib

metgrid

WPS Programs

Local or Remote Computer Has WPS Installed On It

WRF Domain Wizard Web Page

Java Web Start Link

Download Link(user downloads and runs from command line)

http connection

http://www.wrfportal.org/DomainWizard.html

Domain Wizard – How to Run

Run using Java Web StartJust click on a web page link, and the

program runs Or download and run from command line

Domain Wizard – Run via Java Web Start

Domain Wizard – Run via Java Web Start

Run using Java Web Start

Domain Wizard – Run via Java Web Start

Run using Java Web Start

Domain Wizard – Run via Java Web Start

Run using Java Web Start

Domain Wizard – Run via Java Web Start

Run using Java Web Start

Domain Wizard Screens -Configuration

Configuration Window

Domain Wizard Screens -Open

Domain Wizard Screens –Horiz Editor

Domain Wizard Screens –Nest Editor

Domain Wizard Screens –Run WPS

Domain Wizard Screens –Visualize NetCDF

Domain Wizard Screens –Visualize NetCDF

Domain Wizard Screens –Vertical Editor

Questions?