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USGS streamflow map of compared to historical, 2006 - Water Year Summa ry

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  • npat1
    Map of real-time streamflow compared to historical streamflow for the day of the year (United States) Jan 13, 2007 http://water.usgs.gov/waterwatch/ Streamflow
    Message 1 of 1 , Jan 13, 2007
      Map of real-time streamflow compared to historical
      streamflow for the day of the year (United States)
      Jan 13, 2007

      Streamflow of 2006 - Water Year Summary
      U.S. Geological Survey
      Reston, Virginia
      January 2007

      Fw: [CCG] US streamflow data for 2006
      News Release

      U.S. Department of the Interior
      U.S. Geological Survey

      For release: January 12, 2007
      Contact: Harry Lins, 703-648-5712, hlins@...

      First Annual Streamflow Summary Available

      This past year has produced some record-breaking high streamflow
      conditions in the Northeast, as well as some near-record lows in other
      areas of the country, according to the U.S. Geological Survey (USGS).
      In a new USGS publication, "Streamflow of 2006 - Water Year Summary,"
      changes in streamflow over the course of 2006 are examined relative to
      conditions over the past 75 years.

      Some areas of the country experienced higher streamflow than usual.
      For example, parts of New England recorded their highest annual flows
      since 1930. At the same time, below normal conditions were prevalent
      in Texas and other states in the central and southern Great Plains,
      parts of the Southeast, and Alaska.

      "Despite these regional highs and lows, however, streamflow conditions
      nationwide were relatively typical," says Harry Lins, hydrologist with
      the USGS surface-water program. "We expect in any given year that one
      percent of streamgages will experience a new all-time record high or
      all-time record low streamflow. In 2006, two percent of streamgages
      reported new record high streamflow, most of which were in New
      England, and one percent of streamgages experienced new record lows."

      USGS plans to provide similar summaries every year. Robert Hirsch,
      Associate Director for Water, said "These types of summaries are very
      important as they place annual streamflow in a historic context and
      help to provide insights on whether conditions reflect short-term
      (year to year or seasonal) hydrologic fluctuations or longer term,
      more global influences. They reinforce the critical need for a stable
      streamflow monitoring network over the long term."

      This first-ever USGS summary of seasonal, regional, and national
      streamflow conditions for water year 2006 can be accessed at
      http://water.usgs.gov/waterwatch/2006summary/ .

      For more than 125 years, the USGS has monitored flow in selected
      streams and rivers across the U.S. The USGS collects data from more
      than 7,400 streamgages, many of which provide real-time data in 15
      minute increments (explore this information at
      http://water.usgs.gov/waterwatch/ ). The information is routinely used
      for water supply and management, monitoring floods and droughts,
      bridge and road design, and for many recreational activities.

      Access an even larger variety of USGS data, such as for ground water
      and water quality, through the National Water Information System Web
      Interface (NWISWeb), which contains over 1.5 million sites, and
      averages over 25 million hits per month (log onto at
      http://waterdata.usgs.gov/nwis/ .

      USGS provides science for a changing world. For more information,
      visit www.usgs.gov.

      Subscribe to USGS News Releases via our electronic mailing list or RSS

      **** www.usgs.gov ****

      Jennifer LaVista
      Public Affairs Specialist
      U.S. Geological Survey, Office of Communications
      Email: jlavista@...

      Cold Mountain, Cold Rivers
      Working at the Crossroads of Environmental and Human Rights since 1990
      PO Box 7941
      Missoula Montana 59807

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