The High Performance Wireless Research and Education Network (HPWREN), a University of California San Diego partnership project led by the San Diego Supercomputer Center and the Scripps Institution of Oceanography's Institute of Geophysics and Planetary Physics, supports Internet-data applications in the research, education, and public safety realms.

HPWREN functions as a collaborative, Internet-connected cyberinfrastructure. The project supports a high-bandwidth wireless backbone and access data network in San Diego, Riverside, and Imperial counties in areas that are typically not well-served by other technologies to reach the Internet. This includes backbone locations, typically sited on mountain tops, to connect often hard-to-reach areas in the remote Southern California back country.

Featured Image

Antennas in the mist. View from Mt. Woodson, pointing west on April 27, 2018.

Update on HPWREN Real-time Santa Ana Weather Alerts

April 16, 2018

An experimental update for real-time weather alerts, based on the original HPWREN implementation from 2004 (, is now operating on a trial basis. This new version, which utilizes data from HPWREN and SDG&E weather stations, supports multiple profiles, including which sensor thresholds to use, which sensor subset to analyze (or "all"), and which email addresses to send the real-time alerts to. It currently analyzes data every few minutes from usually about 170 weather stations, with an ability to support many analysis profiles.

In its implementation, the system consists of two principal components on an HPWREN server, one that loads real-time sensor data into shared memory as it arrives via multicast from the data collectors, and a processing and analysis component, running every few minutes. The analyzer reads the data from shared memory, and then sequentially reads profile files, which contain the parameters for the interpretation and enumeration of the sensors to be used (or "all").

HPWREN Time Lapse Video - March 24, 2018 Between the clouds east of Lyons Peak

HPWREN Time Lapse or

Live Stream Videos

Fires, weather conditions, flooding, and other public safety conditions are scenarios where real-time sensor data distributions can become important aspects for situational awareness. HPWREN can now provide live feeds from most of its cameras, in addition to the post-processed videos shown at:

This is a time-lapse animation of more than 3,000 images taken at Lyons Peak in San Diego County, pointing east, on Saturday morning, 24 March 2018. The images are a few seconds apart, typically four seconds or so.

HPWREN Web Cameras

Recently completed 360 degree view web cameras on top of Mount Woodson.

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