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News Release 06-109

Communications Team Erects Lifeline for Firefighters Battling California Wildfires

Researchers bridge command post to the Internet within 24 hours of emergency call

View of smoke from wildfire

By the evening of July 23, 2006, the Horse Fire had spread.

July 26, 2006

This material is available primarily for archival purposes. Telephone numbers or other contact information may be out of date; please see current contact information at media contacts.

Early Sunday morning, July 23, an abandoned campfire in Cleveland National Forest erupted into a 7,000-acre wildfire that continues to spread. Now known as the Horse Fire, it threatens more than 1,500 homes and 100 commercial properties near San Diego, Calif.

Within 24 hours, communications expert Hans-Werner Braun and his collaborators from the NSF-supported High Performance Wireless Research and Education Network (HPWREN) were on the scene. Recruited by the California Department of Forestry and Fire Protection (CDF), HPWREN researchers set up hardware at key points to allow firefighters in remote locations to communicate by a wireless link from the Horse Fire incident command post to the Internet.

The critical lifeline is allowing firefighters battling the blaze to coordinate with reinforcements and resources miles away. This was the sixth HPWREN deployment to aid CDF and the first in which the researchers, in collaboration with the San Diego Sheriff's Department, deployed Voice-over-IP technology to secure the communications link. 

In an ironic exchange, researchers completed the effort with the support of a new CDF information technology specialist, Doug Mitchell, while HPWREN team member and retired fire captain Ron Serabia, had been recruited to fly in the firefighters' air attack and direct air-drops of fire retardant.

"Our efforts to enable cyberinfrastructure have the potential to draw together various people and agencies to address research, education and public safety issues, and we certainly see this during emergency situations such as wildfires," says Braun, a research scientist at the San Diego Supercomputer Center at the University of California, San Diego, and the principal investigator on the HPWREN program. "For me, this has been one of the most pleasing aspects of HPWREN."

NSF's HPWREN collaboration involves researchers from the San Diego Supercomputer Center and Scripps Institution of Oceanography, both at the University of California, San Diego, and San Diego State University (SDSU). The HPWREN team will remain on call throughout the fire season.

The NSF Disasters Special Report features the HPWREN researchers at:

An earlier NSF press release on HPWREN efforts at the 2003 Coyote Wildfire is available at:


Media Contacts
Joshua A. Chamot, NSF, (703) 292-7730, email:
Kimberly Mann Bruch, HPWREN, San Diego Supercomputer Center, University of California at San Diego, (619) 846-6553, email:

Program Contacts
Kevin L. Thompson, NSF, (703) 292-8962, email:

Principal Investigators
Hans-Werner Braun, HPWREN, San Diego Supercomputer Center, University of California at San Diego, (760) 788-6687, email:

The U.S. National Science Foundation propels the nation forward by advancing fundamental research in all fields of science and engineering. NSF supports research and people by providing facilities, instruments and funding to support their ingenuity and sustain the U.S. as a global leader in research and innovation. With a fiscal year 2023 budget of $9.5 billion, NSF funds reach all 50 states through grants to nearly 2,000 colleges, universities and institutions. Each year, NSF receives more than 40,000 competitive proposals and makes about 11,000 new awards. Those awards include support for cooperative research with industry, Arctic and Antarctic research and operations, and U.S. participation in international scientific efforts.

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