The Virtual CHILL, or VCHILL system allows remote users to display data both from the CHILL archives as well as from realtime operations. Users with sufficient permissions may even control the radar operation. The Java VCHILL display client software is a cross-platform tool to allow radar access from a variety of computer systems running various operating systems.
The network link to the radar site can support a limited number of realtime users. To manage this resource, we require that users login to the system to access the displays. Casual users are welcome to try the system, however we may need to limit access at times to assure that the principal investigators have access to the system.
If you agree to these conditions, please go to User Services to create a user account. Your email address is used as your user name on the system. You will also be asked to create a password for the account. We will keep you posted via email as needed with news regarding the VCHILL system. If you forget your password, you can return to the User Services page and have your password emailed to you.
Once you have received your confirmation email, you can launch the Java VCHILL viewer to browse archived data and to view real-time radar data.
Java VCHILL Client
The Java VCHILL program is delivered to your computer via Sun's WebStart system. By clicking on the launch link, the latest version of Java VCHILL will be downloaded and run on your machine. Each time you start the program, WebStart automatically checks the CHILL site for program updates, and automatically downloads the latest software as necessary.
For the WebStart link to work, you will need to install a recent (1.5 or newer) Java release on your computer. This is a free download from Sun Microsystems. Go to Sun's Download Center and download the appropriate version for your computer. You may also view their installation instructions.
The newest version of Java VCHILL supports multiple simultaneous basemaps. To toggle each map on/off, simply select it again. This applies to both the supplied default maps and any user created custom maps. If you would like to create your own map files, please email VCHILL Support for information on the file format.
If you run into any problems with Java VCHILL, please let us know about them so we can fix them. Try out our new Bugzilla bug tracking system, or email VCHILL Support with as much information as possible (error messages, screenshots, etc).
Java VCHILL uses the following third party libraries:
Educational write ups by Pat Kennedy:
- ASP lab textbook examples: 2 July 2008
- ASP lab response case: 23 June 2008
- ASP lab evolution and response case 7 July 2008
- Rain to snow transition (Load example in VCHILL)
- PhiDP variability in clutter (Load example in VCHILL)
- PhiDP time variability (Load example in VCHILL)
- Bright band polarimetric signatures (Load example in VCHILL)
- Bow echo in a convective line (Load example in VCHILL)
- ZDR patterns in a fine line (Load example in VCHILL)
- Hail signature development (Load example in VCHILL)
Weather Radar to Go Podcasts
Weather-Radar-to-Go is a series of video podcasts intended for an audience with no prior radar experience. These video files are formatted to play on portable video players such as Apple iPods. They may also be viewed on a desktop PC using software such as Quicktime (available from Apple.com ).
- Descending Brightband
- CSU-CHILL data collected during the early portions of the March, 2003 winter storm are presented. These data were collected using both RHI and PPi scans. The rhoHV field is used to show polarimetric radar detection of the melting layer during a rain to snow transition.