Home » Surface In-Situ Networks » Santa Clara Valley Water District ALERT
Santa Clara Valley Water District ALERT
STATUS
Operational
AVAILABILITY
Web
Surface In-Situ Networks
In this program, a local agency installs, maintains, and monitors event-reporting field sensors that report current hydrologic conditions, in real time, through radio telemetry. Event-reporting refers to the ability of sensors to transmit their status as hydrologic conditions change; i.e. rainfall occurs or streams and reservoirs rise and/or fall. Such sensor status data transmissions are received by a base station, which decodes the radio signal's site of origin, and data value. These values are logged in a computer database for report generation, analysis, and archiving purposes. Through a system of radio repeater sites, as well as computer networks, the data are received by both the local operator and interested agencies in adjoining areas, including the National Weather Service. NWS uses the real time data to verify their forecasts, and to monitor conditions for issuance of various hydrologic and meterologic statements. The district began installation of its ALERT system in 1983, and its system currently includes: 44 rain gauges, 38 streamflow gauges, 11 reservoir gauges, and one weather station.
CONTACT
Santa Clara Valley Water District
5750 Almaden Expressway San Jose, CA 95118-3686
(408) 265-2600
info@valleywater.org
SPECIFICATIONS
Network NameCA ALERT Santa Clara Valley
Collective
Facility TypeNetwork
PurposeResearch
LocationCalifornia
Number of Stations42 precipitation, 29 streamflow
Map of Stationshttp://alert.valleywater.org/
Categorymeteorology, hydrology
Parameters (Most)precipitation, streamflow
Paramters (Limited)
Archivehttp://alert.valleywater.org/
Period of Record
Temporal Resolution
Data Season
Data Availability
Other Purposes
FixedNo
MobileNo
PortableNo
UPDATED ON
28 Sep 2009 13:06