July 22, 2005
The San Diego County Sheriff's Department and the California Department of Forestry and Fire Protection airlift replacement sensors for HPWREN real-time weather alerts
HPWREN weather alerts have paged firefighters in San Diego County many times since their implementation was originally described at http://hpwren.ucsd.edu/news/041106.html. While some of the meteorological sensors can be run for several years without regular maintenance, others require more attention. For example, the fuel sticks require an annual replacement.
Fuel sticks emulate fire response characteristics of the brush vegetation to measure moisture and temperature, which are usually different from the temperature and relative humidity measured in the air.
The sensor data is available at http://hpwren.ucsd.edu/Sensors.
HPWREN's current main fuel sensor for real-time alerts, managed and operated in collaboration with San Diego State University's Field Station Programs, is at an HPWREN backbone site at Lyons Peak in San Diego County. Access to the site has been difficult lately due to some easement dispute on the access road with a local property owner. This situation made it impossible to undertake the annual fuel sensor replacement so CDF and USFS get reliable pager alarms from the system.
During a recent meeting between HPWREN Principal Investigator Hans-Werner Braun and CDF Captain Steve Shoemaker at the Helitack base at Gillespie Field, collaborations regarding data networking technology for both the station and the aircraft were discussed. CDF's real-time data needs would fit nicely into the agenda of the current NSF HPWREN award. The Lyons Peak situation came up in a discussion with Steve Shoemaker and San Diego Sheriff Department's pilot Dan Megna. This also included expressing CDF Division Chief Randy Lyle's interest to get the fuel sticks replaced. Chief Lyle was the CDF officer who parameterized the weather alert data for the HPWREN sensors. Dan Megna then suggested an aerial approach, which everyone agreed to as being the right thing to solve the problem quickly.
Additional photos can be found at:
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