现代农业科技
現代農業科技
현대농업과기
XIANDAIHUA NONGYE
2011年
17期
29-30,36
,共3页
谢露霞%蔡海朝%施徐忠%祝光明
謝露霞%蔡海朝%施徐忠%祝光明
사로하%채해조%시서충%축광명
大风%Mann—Kendall检验%气候特征%湖南茶陵%1971--2010年
大風%Mann—Kendall檢驗%氣候特徵%湖南茶陵%1971--2010年
대풍%Mann—Kendall검험%기후특정%호남다릉%1971--2010년
gale%Mann-Kendall technique%climate characteristic%ehaling Hunan%1971--2010
基于1971--2010年茶陵县地面气象观测资料,使用线性倾向估计法、Mann—KendMl突变检验等方法分析茶陵县近40年大风天气的气候变化特征。结果表明:近40年茶陵县年大风日数呈减少趋势,减少率为-0.967d/10a,近10年转为非活跃期。主导风向季节性差异明显,春、秋、冬季盛行WNW风和NW风,夏季SSW风加强,具有明显的季风特性。茶陵县大风日数月变化呈多波动型,第1峰出现在3月,第2峰出现在7月,第3峰出现在10月,最少月为9、11月,大风主要集中在3—5月。
基于1971--2010年茶陵縣地麵氣象觀測資料,使用線性傾嚮估計法、Mann—KendMl突變檢驗等方法分析茶陵縣近40年大風天氣的氣候變化特徵。結果錶明:近40年茶陵縣年大風日數呈減少趨勢,減少率為-0.967d/10a,近10年轉為非活躍期。主導風嚮季節性差異明顯,春、鞦、鼕季盛行WNW風和NW風,夏季SSW風加彊,具有明顯的季風特性。茶陵縣大風日數月變化呈多波動型,第1峰齣現在3月,第2峰齣現在7月,第3峰齣現在10月,最少月為9、11月,大風主要集中在3—5月。
기우1971--2010년다릉현지면기상관측자료,사용선성경향고계법、Mann—KendMl돌변검험등방법분석다릉현근40년대풍천기적기후변화특정。결과표명:근40년다릉현년대풍일수정감소추세,감소솔위-0.967d/10a,근10년전위비활약기。주도풍향계절성차이명현,춘、추、동계성행WNW풍화NW풍,하계SSW풍가강,구유명현적계풍특성。다릉현대풍일수월변화정다파동형,제1봉출현재3월,제2봉출현재7월,제3봉출현재10월,최소월위9、11월,대풍주요집중재3—5월。
Based on Chaling meteorological observation data from 1971 to 2010,characteristics of windy weather climate change in recent 40 years in Chaling County were County analyzed by using linear regression and Mann-Kendall technique.The results showed that the gale days in Chaling County was decreasing at the trend rate of --0.967 d/10 a,recent 10 years into non-active period. Seasonal differences of the prevailing wind direction were significant, the prevailing winds were NW and WNW in spring, autumn and winter, but SSW wind was strengthened in summer,There- fore ,it had obvious the monsoon feature in Chaling County.Gale days monthly change was more volatile type in Chaling County ,it was the first peak in March, the second peak in July, and the third peak in October, the gale happened mainly from March to May, but at least in September and November.