Page 248 - NS-2 Textbook
P. 248

Meteorology









       The men and women who" go down to the sea in ships"        •  The defeat of the Spanish Armada in 1588 by Sir
       fight a  continuous battle with the elements.  At sea the   Francis Drake's small fleet was helped greatly by a
       safety of a ship and her crew can depend on evasive ac-     bad storm in the English Channel.
       tion taken to  avoid the full fury of a storm. Extra mea-  •  The  brutal  Russian  ·winter  was  instrrunental  in
       sures  are  taken  well  in  advance  of  approaching  bad   defeating Napoleon's invasion of that country in
       weather to minimize damage to the ship, her gem;  and       1812 and Hitler's invasion during World War II.
       her cargo.                                                 •  In 1941  gales and poor visibility in the North Pa-
          We  have all heard  the statement "Everybody talks       cific helped the Japanese fleet move lmobserved to
       about the weather, but nobody does anything about it."      within striking distance of Pearl Harbor.
      In the past, this statement may have been true, but it is   •  The  D  Day  landings  on  Normandy's  coast  in
      not  today.  Meteorology-the  science  of  weather-is        June  1944  were  delayed  due  to  storm warnings.
      helping to make our lives safer and easier. Storm fore-      W1101e  artificial harbors  were  created  to  protect
       casts  and  weather  warnings  are  much  more  accurate    ships that were off-loading supplies from the fury
       than they have been before. A network of weather sta-       of storms expected during the early phases of the
       tions provides information for safe commercial and mili-    invasion.
       tary flights.                                              •  The wet and dry monsoons of Southeast Asia de-
          Today weather satellites in orbit above Earth provide    termined, to a large extent, the active military op-
      worldwide meteorological information used in weather         erational areas during the Vietnam War.
      prediction and scientific research. Agricultural weather    •  The  dry  and  rainy  seasonal  patterns  in  Iraq,
       services help farmers plan for planting, harvesting, and    Kuwait, and Saudi Arabia greatly influenced the
      marketing. Meteorology enables aircraft to  take advan-      timing  and conduct of Operations Desert Shield
       tage of all- currents, and this improves fuel conservation   and Desert Storm in 1990-91.
       and flight time. There have even been successful experi-
       ments in causing rain. Also, meteorologists are exploring   The  first  meteorological  instrument,  developed  by
       ways to break up dangerous tropical cyclones and torna-  Leonardo da Vinci in the 1400s, was a crude hygrometer,
       does before they can reach populated areas.  Yes,  some-  which measured nl0isture in  the  air.  Gallieo  Galilei,  an
       thing is being done about the weather!                 Italian scientist, invented the first sin1ple thermometer in
                                                              the late 1600s. This invention may be regarded as the first
                                                              step  in  the  development  of  meteorology  as  a  science.
                METEOROLOGY AND HISTORY
                                                              Later in the 1600s, barometers, V\Tind-measuring devices,
       The importance of weather in history cannot be overem-  and  in1proved  thermometers  and  hygrometers  were
      phasized.  Weather  has influenced  the  struggles  of hu-  developed.
      manity, in peace and "var} since earliest times. Most peo-  A  major  advance  in  meteorology  occurred  in
      ple are well aware of the damage weather can do to the   1854 -56. During this time a French astronomer named
       economy, transportation, and housing. The study of any   U.  J.  Leverrier  developed  a  system  for  organizing
       war will show that the weather has been critical in major   weather  observations in  the  Black  Sea  area.  He found
       battles and campaigns, on both land and sea. Some ex-  that he could locate and trace various storms from one
       amples of the influence of weather on warfare are listed   map to another, predict their future positions, and thus
      below; many more could be given:                        make  a  weather  forecast.  This  was  the  forerunner  of



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