Operation of a real-time warning system for debris flows in the San Francisco bay area, California
Operation of a real-time warning system for debris flows in the San Francisco bay area, California
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加利福尼亚州旧金山湾区泥石流实时预警系统的运行
DOI:
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发表时间:
1993
期刊:
影响因子:
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通讯作者:
Gary Barbato
中科院分区:
文献类型:
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作者:
Raymond C. Wilson;R. Mark;Gary Barbato
The United States Geological Survey (USGS) and the National Weather Service (NWS) have developed an operational warning system for debris flows during severe rainstorms in the San Francisco Bay region. The NWS makes quantitative forecasts of precipitation from storm systems approaching the Bay area and coordinates a regional network of radio-telemetered rain gages. The USGS has formulated thresholds for the intensity and duration of rainfall required to initiate debris flows. The first successful public warnings were issued during a severe storm sequence in February 1986. Continued operation of the warning system since 1986 has provided valuable working experience in rainfall forecasting and monitoring, refined rainfall thresholds, and streamlined procedures for issuing public warnings. Advisory statements issued since 1986 are summarized.