WORLD METEOROLOGICAL ORGANIZATION |
HOMS COMPONENT |
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Explanation of the criteria for classification and numbering of components |
F00.3.05 (DEC 99) |
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Explanation of the dates on the component's description | ||
ALERT DATA COLLECTION SUBSTATION |
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1. Purpose and objectives To receive, store and display precipitation and streamflow data from ALERT River and Rain Gauges (see components C30.3.01 and C71.3.01). 2. Description The substation consists of a tuned antenna, radio receiver, modem,
microcomputer, connecting cabling, an alarm device, a real time clock, and special software. The software running in the microcomputer manages
the data input from the remote precipitation and water level gauges, 3. Input Radio signals transmitted from ALERT precipitation and streamflow
stations. 4. Output Precipitation and streamflow data are organized in a database. There
are numerous options for display on the console, including precipitation
amounts for groups of stations, plot of precipitation amounts and data from
a single sensor. These options may vary depending on the software package 5. Operational requirements and restrictions a. Two people should be trained in installation and data base maintenance procedures. About one week of training is required, and can be accomplished concurrently with training on components C30.3.01 and C71.3.01. b. Installation requires one or two people. c. The software was originally developed for use on mini-computers, and d. Access to a reliable commercial power source or suitable fail safe 6. Form of presentation Microcomputer, operating system, and peripheral hardware are purchased
commercially by the user. ALERT software and documentation is available from
private sector vendors. Current software versions are written in computer
languages such as C, C++, and Visual Basic. Software and documentation is
generally supplied on CD-ROMS. 7. Operational experience 8. Originator and technical support The technology was originally developed in cooperation with the
Sacramento (USA) River Forecast Center, U.S. National Weather Service. A list
of vendors providing technical support can be obtained from links on the home
page of the ALERT Users Group. The address of this home page is currently: 9. Availability From the HOMS National Reference Center for U.S.A. 10. Conditions on use Microcomputer, operating system, licenses for applications software, and
peripheral equipment are for sale through commercial vendors. |
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(First entered: 28 JUL 83 | Last updated: JUL 99) |