沙漠与绿洲气象
沙漠與綠洲氣象
사막여록주기상
DESERT AND OASIS METEOROLOGY
2012年
6期
28-33
,共6页
黄玖珺%师国强%周雪英%霍锦
黃玖珺%師國彊%週雪英%霍錦
황구군%사국강%주설영%곽금
车尔臣河%变化特征%趋势分析%突变
車爾臣河%變化特徵%趨勢分析%突變
차이신하%변화특정%추세분석%돌변
Cherchen River%change characteristics%trend analysis%abrupt change
利用车尔臣河流域1955--2010年气温、降水、云量、浮尘、沙尘暴和大风等气象资料,分析了近56a来流域气候变化特征。结果表明:(1)车尔臣河流域年、季平均气温均呈明显上升趋势,以冬季增暖最显著;且在1990年前后出现了冷暖突变,2001--2010年是近568来最暖的时期。(2)年、季降水量呈小幅增加趋势,春季降水增加趋势达显著水平;降水在1963年前后出现干湿突变,而20世纪80年代后降水增加则趋于平稳。(3)年、季平均总云量呈增加趋势,其中夏季云量的增加最明显。(4)年浮尘、沙尘暴和大风日数呈显著减少趋势,但值得注意的是2005年以后沙尘日数不降反升。总体上看,近568车尔臣河流域气候朝暖湿方向发展,生态环境明显改善。
利用車爾臣河流域1955--2010年氣溫、降水、雲量、浮塵、沙塵暴和大風等氣象資料,分析瞭近56a來流域氣候變化特徵。結果錶明:(1)車爾臣河流域年、季平均氣溫均呈明顯上升趨勢,以鼕季增暖最顯著;且在1990年前後齣現瞭冷暖突變,2001--2010年是近568來最暖的時期。(2)年、季降水量呈小幅增加趨勢,春季降水增加趨勢達顯著水平;降水在1963年前後齣現榦濕突變,而20世紀80年代後降水增加則趨于平穩。(3)年、季平均總雲量呈增加趨勢,其中夏季雲量的增加最明顯。(4)年浮塵、沙塵暴和大風日數呈顯著減少趨勢,但值得註意的是2005年以後沙塵日數不降反升。總體上看,近568車爾臣河流域氣候朝暖濕方嚮髮展,生態環境明顯改善。
이용차이신하류역1955--2010년기온、강수、운량、부진、사진폭화대풍등기상자료,분석료근56a래류역기후변화특정。결과표명:(1)차이신하류역년、계평균기온균정명현상승추세,이동계증난최현저;차재1990년전후출현료랭난돌변,2001--2010년시근568래최난적시기。(2)년、계강수량정소폭증가추세,춘계강수증가추세체현저수평;강수재1963년전후출현간습돌변,이20세기80년대후강수증가칙추우평은。(3)년、계평균총운량정증가추세,기중하계운량적증가최명현。(4)년부진、사진폭화대풍일수정현저감소추세,단치득주의적시2005년이후사진일수불강반승。총체상간,근568차이신하류역기후조난습방향발전,생태배경명현개선。
Based on the daily meteorological data from Cherchen River Basin during 1955-2010, the change characteristics of various climatic elements such as temperature, precipitation, cloud amount, floqting-dust days, sand storm days and strong wind days were analyzed.The main results are as follows: (1)The annual mean temperature and seasonal mean temperature were obviously increasing, and especially there was a remarkable increase in winter. Meanwhile the annual mean temperature had a sudden change in 1990.The period from 2001 to 2010 was the warmest in recent 56 years.(2)Annual precipitation and seasonal precipitation all presented faint increasing trends, especially in spring. The annual precipitation had a sudden change in 1962 and a stable period appeared since 1980s. (3)The annual cloud amount and seasonal cloud amount also had obviously increasing trends, especially in summer. (4)The annual floating-dust days, annual sand storm and strong wind days obviously decreased, however, the floating-dust and sand storm days increased since 2005 instead of decreasing, which should be paid attention to. The improvement of ecological environment was more obvious and the climate was being warmer and wetter in Cherchen River Basin.