News Release

Wireless network provides critical link in battle to control California’s Coyote Wildfire

Peer-Reviewed Publication

National Science Foundation

Coyote Fire Operations Camp

Full size image available through contact

After lightning touched off the Coyote Fire July 16, the California Department of Forestry and Fire Protection (CDF) deployed more than 1,700 firefighters, 10 helicopters and several bulldozers to battle the blaze. To provide Internet communications for the CDF operations camp, researchers from the University of California, San Diego (UCSD), and San Diego State University deployed a high-speed wireless link to the remote site in northeastern San Diego County within hours of a request for help.

"The dissemination of information and incident intelligence up and down the command-and-control chain of command is more important than ever," said Jim Garrett, CDF Emergency Command Center chief. "The connectivity provided to CDF for the Coyote Fire was a real-life exercise that clearly demonstrated how valuable and useful the technology provided by HPWREN is to our agency. HPWREN provided us an invaluable service that cannot be overestimated." The 19,000-acre Coyote Fire was contained by July 24 and controlled by July 27.

The High-Performance Wireless Research and Education Network (HPWREN) connection allowed the firefighters to receive weather and other data in real time and submit incident summaries to the state's emergency response agencies. HPWREN is funded by the National Science Foundation, the independent federal agency that supports fundamental research and education across all fields of science and engineering.

"All in all, the initial antenna and data connectivity setup probably did not take much more than eight hours after the request was made," said UCSD's Hans-Werner Braun, an HPWREN principal investigator. "Then, the next day we added a real-time high-resolution network camera at the operations site to allow for remote image access to the local situation."

The data connectivity team included Braun, Bud Hale, Jim Hale and Todd Hansen of the UCSD San Diego Supercomputer Center, as well as Pablo Bryant of the San Diego State University Field Station Programs.

HPWREN reached the Coyote Fire camp via line-of-sight wireless links between the supercomputer center and the Cuyamaca Mountains, then to Palomar Mountain and finally to the CDF camp--a distance of more than 70 miles.

The fire destroyed several buildings at the Sky Oaks ecological field station operated by San Diego State. Vegetation and instrumentation related to several ongoing experiments also burned. Plans are underway to link the Sky Oaks station to HPWREN, which already provides Internet connectivity to San Diego State's Santa Margarita Ecological Reserve.

Earlier in July, the HPWREN team connected the CDF's Ramona Air Attack Base in San Diego County to its high-speed network. This connectivity allows firefighters to remotely access high-resolution still and video cameras, as well as other sensors located throughout the county. The link also provides access to Internet data such as satellite maps, infrared imagery, forest fuel conditions and weather at remote sensors in support of emergency situations. The CDF's Red Mountain fire station is also connected to HPWREN.

The goal of the HPWREN project is to demonstrate and evaluate a non-commercial, prototype, high-performance, wide-area wireless network in San Diego and Riverside counties. The network includes backbone nodes on the UCSD and San Diego State campuses and a number of hard-to-reach areas in remote environments.

HPWREN is used for network analysis research and provides high-speed Internet access to field researchers in geophysics, astronomy and ecology as well as educational opportunities for rural Native American learning centers and schools. The HPWREN team also works with various state, regional and local agencies to demonstrate wireless networking in emergency response exercises.


NSF Program Officer: Kevin Thompson, 703-292-1212,

Principal Investigator: Hans-Werner Braun, 760-788-6687,

Coyote Fire:

Images available from

The National Science Foundation is an independent federal agency that supports fundamental research and education across all fields of science and engineering, with an annual budget of nearly $5.3 billion. National Science Foundation funds reach all 50 states through grants to nearly 2,000 universities and institutions. Each year, NSF receives about 30,000 competitive requests for funding, and makes about 10,000 new funding awards. The National Science Foundation also awards over $200 million in professional and service contracts yearly.

Receive official National Science Foundation news electronically through the e-mail delivery system, NSFnews. To subscribe, send an e-mail message to In the body of the message, type "subscribe nsfnews" and then type your name. (Ex.: "subscribe nsfnews John Smith")

Useful National Science Foundation Web Sites
NSF Home Page:
News Highlights:
Science Statistics:
Awards Searches:

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.