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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>Washington Volcanic Ash Advisory Center (VAAC) Operations</title>
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      <description><![CDATA[The Washington Volcanic Ash Advisory Center (VAAC) is part of a worldwide network created by the International Civil Aviation Organization to provide almost global coverage of volcanic ash eruptions.  The Washington VAAC is a joint collaboration between the National Centers for Environmental Prediction (NCEP) Central Operations (NCO) of the National Weather Service and the Satellite Analysis Branch (SAB) of the National Environmental Satellite, Data, and Information Service (NESDIS). The Washington VAAC monitors and tracks airborne volcanic ash and disseminates graphical and text messages to the worldwide aviation community.  This paper discusses the Washington VAAC's services and products, and ash detection methods.  It also presents statistics for six years of its operations.]]></description>
      <pubDate>Thu, 30 Jun 2005 10:56:28 GMT</pubDate>
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      <title>NOAA's NWS Volcanic Ash Program: Current Status and Plans for the Future</title>
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      <description><![CDATA[The National Oceanic and Atmospheric Administration (NOAA) operates four Meteorological Watch Offices (MWO) and two of the world's nine Volcanic Ash Advisory Centres (VAACs), and as such, plays an important role in the worldwide volcanic ash network.  The International Civil Aviation Organization (ICAO) defines the operational responsibilities of the two VAACs.  The National Weather Service's (NWS) Alaska Aviation Weather Unit manages the Anchorage VAAC.  The NWS's National Centers for Environmental Prediction (NCEP), the National Environmental Satellite, and the Data and Information Service (NESDIS) Satellite Analysis Branch jointly manage the Washington VAAC.  All of these centers together are responsible for providing ash dispersion forecasts and volcanic ash advisories for an area that ranges widely from the Pacific Ocean eastward over the United States and much of the Atlantic Ocean.  This presentation explores NOAA's Volcanic Ash Program.  It discusses future plans and the current status in the areas of research and development, operations, and policy development.]]></description>
      <pubDate>Mon, 20 Jun 2005 09:44:15 GMT</pubDate>
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