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2015年
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数九%气温变化%突变分析%寒冷时段%F检验
數九%氣溫變化%突變分析%寒冷時段%F檢驗
수구%기온변화%돌변분석%한랭시단%F검험
Shu Jiu%temperature variation%mutation analysis%cold period%F test
利用西安1971~2010年逐日气温、气压、最大风速资料，采用Mann-Kendall法、F检验法分析了西安数九期间平均气温和日最低气温变化特征。结果发现：西安冬季寒冷的时段出现在“三九”至“四九”之间，最冷时段出现于“三九”，“三九”期间日平均气温为-0.01益，日最低气温为-3.62益；西安“一九”至“三九”期间平均气温和最低气温要素处于降温趋势，其他各“九”气温处于上升趋势；西安“数九”节气平均气温和日最低气温随年际变化均呈增温趋势，其中，平均气温在80年代发生转温突变，于1993年之后出现显著增温，日最低气温于2005年之后出现显著增温。
利用西安1971~2010年逐日氣溫、氣壓、最大風速資料，採用Mann-Kendall法、F檢驗法分析瞭西安數九期間平均氣溫和日最低氣溫變化特徵。結果髮現：西安鼕季寒冷的時段齣現在“三九”至“四九”之間，最冷時段齣現于“三九”，“三九”期間日平均氣溫為-0.01益，日最低氣溫為-3.62益；西安“一九”至“三九”期間平均氣溫和最低氣溫要素處于降溫趨勢，其他各“九”氣溫處于上升趨勢；西安“數九”節氣平均氣溫和日最低氣溫隨年際變化均呈增溫趨勢，其中，平均氣溫在80年代髮生轉溫突變，于1993年之後齣現顯著增溫，日最低氣溫于2005年之後齣現顯著增溫。
이용서안1971~2010년축일기온、기압、최대풍속자료，채용Mann-Kendall법、F검험법분석료서안수구기간평균기온화일최저기온변화특정。결과발현：서안동계한랭적시단출현재“삼구”지“사구”지간，최랭시단출현우“삼구”，“삼구”기간일평균기온위-0.01익，일최저기온위-3.62익；서안“일구”지“삼구”기간평균기온화최저기온요소처우강온추세，기타각“구”기온처우상승추세；서안“수구”절기평균기온화일최저기온수년제변화균정증온추세，기중，평균기온재80년대발생전온돌변，우1993년지후출현현저증온，일최저기온우2005년지후출현현저증온。
By using the daily temperature, barometric pressure, maximum wind speed data from 1971 to 2010 of Xi’an with Mann-Kendall method and F test applied, the characteristics of average temperature and daily minimum temperature variation in the period of Shu Jiu in Xi’an were analyzed. We found that the cold period in winter in Xi'an appeared between the San Jiu and Si Jiu, and the coldest period was San Jiu. During San Jiu, the daily average temperature was -0.01℃, and daily minimum temperature was -3.62 ℃. The average and minimum temperatures from Yi Jiu to San Jiu in Xi'an showed a cooling trend, the temperatures of other Jiu periods were on the rise. The average and daily minimum temperatures in Shu JIU in Xi'an showed a warming trend with the annual variation, when the average temperature mutation occurred in the 1980s, and showed a significant warming trend since 1993. The daily minimum temperature raised significantly after 2005.
