在流域尺度上研究水文循环过程中的水汽含量和降水量,为流域综合治理和水资源开发利用提供依据。基于ASTER GDEM V2地形数据、ERA-Interim逐月再分析资料及降水资料,研究金沙江流域石鼓断面上游上空水汽含量和降水量的时空分布特征,并讨论两者的相关性。研究表明:研究区上空水汽含量由南向北、由东向西呈递减趋势,西南部呈斜倒“U”型,东南部呈正“U”型;多年平均降水量自西北向东南逐渐增加;年平均水汽含量和降水量呈现上升趋势,四季水汽含量和降水量从大到小均依次为“夏、秋、春、冬”,多年平均月水汽含量和降水量为单峰型分布;年平均水汽含量同降水量之间为弱相关关系,各季节相关性差异显著,逐月相关性更具有指导意义。
Abstract
The water vapor content and precipitation in hydrological cycle process are studied on basin scale to provide a basis for the comprehensive management of river basin and the development and utilization of air water resources. Based on topographic data ASTER GDEM V2,ERA-Interim monthly reanalysis data and precipitation data,we studied the temporal and spatial characteristics of water vapor content and precipitation over the upper reaches of Shigu Section in the Jinsha River basin,and discussed the correlation between the two. Our research reveals that the water vapor content over the study area displays a decreasing trend from south to north and from east to west,an oblique “U” shape trend in the southwest,and a positive “U” shape in tthe southeast. The average precipitation over the years has gradually increased from northwest to southeast. The annual average water vapor content and precipitation are on the rise. The water vapor content and precipitation in summer are the largest,followed by those in autumn,spring and winter in sequence. The average monthly water vapor content and precipitation for many years distribute in a unimodal type. Moreover,the annual average water vapor content is weakly correlated with precipitation,and the correlation differs significantly among four seasons. The monthly correlation is more instructive.
关键词
金沙江流域 /
大气水汽含量 /
降水量 /
相关性 /
流域综合治理 /
水资源开发利用
Key words
Jinsha River basin /
atmospheric water vapor content /
precipitation /
correlation /
comprehensive management of basin /
development and utilization of water resources
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参考文献
[1] 刘国纬.水文循环的大气过程[M].北京:科学出版社,1997.
[2] 张 扬,李宝富,陈亚宁.1970—2013年西北干旱区空中水汽含量时空变化与降水量的关系[J].自然资源学报,2018,33(6):1043-1055.
[3] 赵生才.全球变化与中国水循环前沿科学问题:香山科学会议第187次学术讨论会[J].地球科学进展,2002(4):628-630.
[4] 任国玉,郭 军,徐铭志,等.近50年中国地面气候变化基本特征[J].气象学报,2005(6):942-956.
[5] 夏 军,刘春蓁,任国玉.气候变化对我国水资源影响研究面临的机遇与挑战[J].地球科学进展,2011,26(1):1-12.
[6] 陆桂华,何 海.全球水循环研究进展[J].水科学进展,2006(3):419-424.
[7] BENTON G S,ESTOQUE M A. Water-vapor Transfer over the North American Continent[J]. Journal of the Atmospheric Sciences,1954,11(6):462-477.
[8] HIGGINS R W,MO K C,SCHUBERT S D. The Moisture Budget of the Central United States in Spring as Evaluated in the NCEP/NCAR and the NASA/DAO Reanalyses[J]. Monthly Weather Review, 1996,124(5):939-63.
[9] WILLIAM J,GUTOWSKI J,CHEN Y,et al. Atmospheric Water Vapor Transport in NCEP-NCAR Reanalyses[J]. Bulletin of the American Meteorological Society,1997,78(9):1957-1969.
[10]吴国雄.大气水汽的输送和收支及其对副热带干旱的影响[J].大气科学,1990(1):53-63.
[11]周长艳,李跃清,李 薇,等.青藏高原东部及邻近地区水汽输送的气候特征[J].高原气象,2005(6):880-888.
[12]蔡 英,钱正安,吴统文,等.青藏高原及周围地区大气可降水量的分布、变化与各地多变的降水气候[J].高原气象,2004(1):1-10.
[13]何金海,刘芸芸,常 越.西北地区夏季降水异常及其水汽输送和环流特征分析[J].干旱气象,2005(1):10-16.
[14]戴新刚,李维京,马柱国.近十几年新疆水汽源地变化特征[J].自然科学进展,2006(12):1651-1656.
[15]赵瑞霞,吴国雄.长江流域水分收支以及再分析资料可用性分析[J].气象学报,2007(3):416-427.
[16]蒋兴文,李跃清.长江流域地区水汽输送及其对旱涝影响研究综述[J].气象科学,2009,29(1):138-142.
[17]李 进,李栋梁,张 杰.黄河流域冬、夏季水汽输送及收支特征[J].高原气象,2012,31(2):342-350.
[18]刘玉婷,许继军,姚立强,等.基于水量平衡的长江上游地区气象水文要素时空变化特征分析[J].长江科学院院报,2022,39(3):13-20.
[19]何士华,赖毅舟,叶凤艳,等.滇中引水工程主要受水区水汽输送时空变化[J].长江科学院院报,2022,39(5):36-44,62.
[20]BAO Xing-hua,ZHANG Fu-qing. Evaluation of NCEP-CFSR,NCEP-NCAR,ERA-Interim,and ERA-40 Reanalysis Datasets against Independent Sounding Observations over the Tibetan Plateau[J]. Journal of Climate,2013,26(1):206-214.
[21]何奇芳,曾小凡,赵 娜,等.ERA-interim再分析数据集在长江上游的适用性[J].人民长江,2018,49(12):30-33.
[22]刘桐畅,王召民.南极探空与两套再分析资料的对比分析[J].大气科学学报,2021,44(1):151-164.
[23]周长艳,王顺久,彭 骏.金沙江流域及邻近地区空中水资源的气候特征分析[J].资源科学,2010,32(12):2433-2440.
[24]杨景梅,邱金桓.用地面湿度参量计算我国整层大气可降水量及有效水汽含量方法的研究[J].大气科学,2002(1):9-22.
[25]李 飞,田万顺.流域面雨量的计算方法[J].河南气象,2003(3):20-21.
[26]卢 璐,王 琼,王国庆,等.金沙江流域近60年气候变化趋势及径流响应关系[J].华北水利水电大学学报(自然科学版),2016,37(5):16-21.
[27]赵庆由,明庆忠.1971—2009年金沙江流域气候变化特征及对生态环境的影响[J].气象与环境学报,2010,26(6):18-23.
基金
国家自然科学基金项目(52069009);昆明理工大学引进人才启动基金项目(KKSY201904008)
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