沙漠与绿洲气象
沙漠與綠洲氣象
사막여록주기상
DESERT AND OASIS METEOROLOGY
2011年
3期
16-20
,共5页
蒸发量%变化特征%影响因子
蒸髮量%變化特徵%影響因子
증발량%변화특정%영향인자
evaporating capacity%variation feature%influence factor
利用达坂城气象站1964—2008年蒸发量实测资料,分析了达坂城蒸发量的变化特征及其影响因子。结果表明：达坂城年和各季的蒸发量均呈现不同程度的减少趋势,年蒸发量以179.7 mm/10 a的倾向率减少。减少趋势主要表现在夏季、春季,其中5月最明显。影响蒸发量变化的因子有日照日数、气温、风速、相对湿度等,其中蒸发量与风速呈显著正相关,与日照日数、气温、相对湿度均呈负相关。风速的逐年减小和相对湿度的逐年增加,是导致该地区蒸发量减少的重要因素。同时期气温的上升趋势和干旱指数分析表明,达坂城地区气候逐渐转向暖湿的信号已经出现。
利用達坂城氣象站1964—2008年蒸髮量實測資料,分析瞭達坂城蒸髮量的變化特徵及其影響因子。結果錶明：達坂城年和各季的蒸髮量均呈現不同程度的減少趨勢,年蒸髮量以179.7 mm/10 a的傾嚮率減少。減少趨勢主要錶現在夏季、春季,其中5月最明顯。影響蒸髮量變化的因子有日照日數、氣溫、風速、相對濕度等,其中蒸髮量與風速呈顯著正相關,與日照日數、氣溫、相對濕度均呈負相關。風速的逐年減小和相對濕度的逐年增加,是導緻該地區蒸髮量減少的重要因素。同時期氣溫的上升趨勢和榦旱指數分析錶明,達坂城地區氣候逐漸轉嚮暖濕的信號已經齣現。
이용체판성기상참1964—2008년증발량실측자료,분석료체판성증발량적변화특정급기영향인자。결과표명：체판성년화각계적증발량균정현불동정도적감소추세,년증발량이179.7 mm/10 a적경향솔감소。감소추세주요표현재하계、춘계,기중5월최명현。영향증발량변화적인자유일조일수、기온、풍속、상대습도등,기중증발량여풍속정현저정상관,여일조일수、기온、상대습도균정부상관。풍속적축년감소화상대습도적축년증가,시도치해지구증발량감소적중요인소。동시기기온적상승추세화간한지수분석표명,체판성지구기후축점전향난습적신호이경출현。
By using the actually observed data on evaporating capacity at Dabancheng weather station of Urumqi from 1964 to 2008,the Variation features of evaporating capacity in Dabancheng and corresponding influential factors were analyzed.The results indicated that the annual,quarterly and monthly evaporating capacities at Dabancheng revealed a declining trend.The annual evaporating capacity was decreasing at a tendency rate of 179.7mm/10a.The declining tendency was mainly happened in summer and spring,and the evaporating capacity decreased the most in May.The influence factors of evaporating capacity were sunshine,temperature,relative humidity,among which evaporating capacity showed positive correlation with wind speed,and negative correlation with sunshine,temperature and relative humidity.The constant decreasing wind speed and increasing relative humidity year by year were the important reasons for the declining evaporating capacity in this region.The increasing tendency of temperature and drought index analysis alsohowed a warm-wet trend signal in Dabancheng region.
