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<table border="0" cellpadding="3" cellspacing="1" width="100%" class="forumline"> <tr> <th class="thCornerL" width="22%" height="26">Autor</th> <th class="thCornerR">Wiadomość</th> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>jiangyouk77</b></span></td> <td class="row1" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="http://picsrv.fora.pl/Aniseed/images/icon_minipost.gif" width="12" height="9" alt="Post" title="Post" border="0" /><span class="postdetails">Wysłany: Czw 2:32, 26 Maj 2011<span class="gen"> </span> Temat postu: Doppler Radar Weather Forecasting Meteorologists U</span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">Base Reflectivity are thought the basic scan of the radar range, these images display the amount of power namely is returned to the radar recipient. These radar images are used to detect precipitation, appraise a storms building and measurement.Composite Reflectivity images show the intensity of precipitation, using scans from all elevations and features of storm structure <br />How Radar Detects Weather <br />Types of Radar Images <br />The National Weather Service has identified 6 another types of radar images available from the WSR-88D. <br />Velocity Images <br />Read on <br />Tracking Occurrence of Tornadoes <br />Meteorology vs. Climatology <br />Guide to Online Weather Websites <br />There are limits to using radar to predict and detect weather and precipitation. Radar cannot detect the height of precipitation. Precipitation that occurs but doesnt reach the floor, phoned virga, is detected and recorded by radar. Mountains, trees or structures can stop the radar waves. Sea and ground clutter occur when radar waves reflect off the sea or birds, planes and insects. Doppler radar likewise looses its aptitude to detect precipitation with additional distance. The curvature of the Earth activities a portion in limiting weather detection by radar. <br />Australia <br />Precipitation Images <br />Base Velocity images are used to detect motion, either away from or towards the radar receiver, these images display the overall wind field, speed of fronts,<a href="http://villageatwestgatehoa.org/hoaforum/index.php?topic=345312.msg549060#msg549060" target="_blank" class="postlink">Maryland elegance settlement shouldn't be out of your allowance Pay care apt t</a>, and places of muscular wind. There is a most range that can be scanned from the radar position of 140 miles.Storm Relative Motion images have the same scope as Base Velocity images. 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Radar can discover precipitation merely it requires evaluation of atmospheric conditions by meteorologists to determine if this precipitation is rain,<a href="http://www.airjordansbox.com/" target="_blank" class="postlink">cheap jordan shoes</a>, snow, snow alternatively hail. <br />One-hour Precipitation images display basically what its appoint states estimated one-hour accumulation amounts of precipitation. These images are important when evaluating flood omens, rainfall intensities or other weather warnings.Storm Total Precipitation images show the estimated accumulation of precipitation since the final one-hour wreck. These are used to estimate run-off and latent flooding. These images are constantly being updated.Limits of Radar <br /> class="dynamic">Using Radar to Detect Weather <br />Radar, or RAdio Detection And Ranging,<a href="http://www.delphi.in.th/wb/" target="_blank" class="postlink">Motor On Sights and Delights City of Detroit Off Season Motown Rhythms Urban Fla</a>, is the maximum efficient tool used to detect and predict precipitation and storm activity by meteorologists. Radar has been used since the 1940s, available for public use afterward World War II. During the 1980s and 1990s the National Weather Service set up a weather surveillance system known as WSR-88D, or Weather Surveillance Radar - 1988 Doppler. There are 155 antennas used for radar detection situated cross the United States. A digit of TV stations have their own antennas for detecting and prophesying weather.</span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="http://picsrv.fora.pl/Aniseed/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> </table>
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