金鹿 发表于 2007-6-9 20:54

如何判断风力等级

<DIV class="g_t_left g_c_pdin g_p_center c07 content" id=blogtext__fks_tRND7PXI065lQ3pKTCpiXQ== style="WIDTH: 760px"><FONT color=#008000 size=5>如何判断风力等级<BR></FONT><FONT size=3>风力等级&nbsp; &nbsp; &nbsp; &nbsp; 陆地地面物体征象&nbsp; &nbsp; &nbsp; &nbsp; 相当风速<BR>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 公里／时&nbsp; &nbsp; &nbsp; &nbsp; 米／秒<BR>0&nbsp; &nbsp; &nbsp; &nbsp; 静，烟直上。&nbsp; &nbsp; &nbsp; &nbsp; 小于1&nbsp; &nbsp; &nbsp; &nbsp; 0～ 0．2<BR>1&nbsp; &nbsp; &nbsp; &nbsp; 烟能表示风向。&nbsp; &nbsp; &nbsp; &nbsp; 1－5 &nbsp; &nbsp; &nbsp; &nbsp; 0．3～1．5<BR>2&nbsp; &nbsp; &nbsp; &nbsp; 人面感觉有风，树叶微动。&nbsp; &nbsp; &nbsp; &nbsp; 6～11&nbsp; &nbsp; &nbsp; &nbsp; 1．6～3．3<BR>3&nbsp; &nbsp; &nbsp; &nbsp; 树叶及微技摇动不息，旌旗展开。&nbsp; &nbsp; &nbsp; &nbsp; 12～19&nbsp; &nbsp; &nbsp; &nbsp; 3．4～5．4<BR>4&nbsp; &nbsp; &nbsp; &nbsp; 能吹起地面灰尘和纸张，树的小枝摇动。&nbsp; &nbsp; &nbsp; &nbsp; 20～28 &nbsp; &nbsp; &nbsp; &nbsp; 5．5～7．9<BR>5&nbsp; &nbsp; &nbsp; &nbsp; 有叶的小树摇摆，内陆的水面有小波。&nbsp; &nbsp; &nbsp; &nbsp; 29～38&nbsp; &nbsp; &nbsp; &nbsp; 8．0一10．7<BR>6&nbsp; &nbsp; &nbsp; &nbsp; 大树枝摇动，电线呼呼有声，举伞困难。 &nbsp; &nbsp; &nbsp; &nbsp; 39～49 &nbsp; &nbsp; &nbsp; &nbsp; 10．8～13.8<BR>7&nbsp; &nbsp; &nbsp; &nbsp; 全树动摇，迎风步行感觉不便。 &nbsp; &nbsp; &nbsp; &nbsp; 50～61&nbsp; &nbsp; &nbsp; &nbsp; 13．9～17．l<BR>8&nbsp; &nbsp; &nbsp; &nbsp; 微枝折毁，人向前行感觉阻力甚大。&nbsp; &nbsp; &nbsp; &nbsp; 62～74&nbsp; &nbsp; &nbsp; &nbsp; 17．2～20．7<BR>9&nbsp; &nbsp; &nbsp; &nbsp; 草房遭受破坏，大树枝可折断。&nbsp; &nbsp; &nbsp; &nbsp; 75～88&nbsp; &nbsp; &nbsp; &nbsp; 20．8～24．4<BR>10&nbsp; &nbsp; &nbsp; &nbsp; 树木可被吹倒，，一般建筑物遭破坏。 &nbsp; &nbsp; &nbsp; &nbsp; 89～102&nbsp; &nbsp; &nbsp; &nbsp; 24．5～28．4 <BR>11&nbsp; &nbsp; &nbsp; &nbsp; 陆上少见，大树可被吹倒，一般建筑物遭严重破坏。&nbsp; &nbsp; &nbsp; &nbsp; 103～117&nbsp; &nbsp; &nbsp; &nbsp; 28．5～32．6<BR>12&nbsp; &nbsp; &nbsp; &nbsp; 陆上绝少，其催毁力极大。&nbsp; &nbsp; &nbsp; &nbsp; 118～133&nbsp; &nbsp; &nbsp; &nbsp; 32．7～36．9</FONT> </DIV>

启明 发表于 2007-6-9 21:01

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