CAJ | 학술논문

利用玛曲县气象观测站1971～2010年的地面气象观测资料,运用Penman-Monteith公式计算得出玛曲县逐月潜在蒸散量值。通过Mann-Kendall法、小波分析等统计方法进行分析,结果发现玛曲县潜在蒸散量年际变化呈逐年上升趋势,上升趋势为12.0 mm/10 a;并且存在准10 a和准5 a周期。潜在蒸散量与小型蒸发皿蒸发量的逐年变化趋势基本一致。月平均潜在蒸散量呈单峰型,从1月到7月呈上升趋势,7月是蒸散量最大月,从8月又开始下降。并且月平均潜在蒸散量最大值出现在年平均气温最高和降水量最多的7月。玛曲县潜在蒸散量的季节分布与该地降水量的季节分布和气温的高低季节变化一致。
이용마곡현기상관측참1971～2010년적지면기상관측자료,운용Penman-Monteith공식계산득출마곡현축월잠재증산량치。통과Mann-Kendall법、소파분석등통계방법진행분석,결과발현마곡현잠재증산량년제변화정축년상승추세,상승추세위12.0 mm/10 a;병차존재준10 a화준5 a주기。잠재증산량여소형증발명증발량적축년변화추세기본일치。월평균잠재증산량정단봉형,종1월도7월정상승추세,7월시증산량최대월,종8월우개시하강。병차월평균잠재증산량최대치출현재년평균기온최고화강수량최다적7월。마곡현잠재증산량적계절분포여해지강수량적계절분포화기온적고저계절변화일치。
Based on meteorological data during 1971-2010 from Maqu weather station,the monthly potential evapotranspiration was calculated by using the Penman-Monteith method,and the trends of potential evapotranspiration in Maqu were analyzed by using statistic analysis,Mann-Kendall method and wavelet analysis.The results indicated that the annual variation of potential evapotranspiration presented a significant increasing trend with the rate of 12.0 mm/10 a,and there was quasi-10 and quasi-5 years change period.The trend of pan-evaporation was similar to the potential evapotranspiration in Maqu.Monthly mean of the potential evapotranspiration presented single peak with increase from January to July and going down from August.The maximum of monthly mean potential evapotranspiration occurred in July.The seasonal distribution of potential evapotranspiration was consistent with precipitation and temperature in Maqu.