40～30kaBP期间高湖面稳定存在时青藏高原西南部封闭流域的古降水量研究  

THE PRECIPITATION OF THE INTERIOR LAKES IN THE SOUTHWESTERN TIBETAN PLATEAU AT 40～30 ka BP

作　　者：贾玉连[1] 施雅风[1] 曹建廷[1] 范云崎[1] 

机构地区：[1]中国科学院南京地理与湖泊研究所,江苏南京210008

出　　处：《地球科学进展》2001年第3期346-351,共6页Advances in Earth Science

基　　金：国家重点基础研究发展规划项目!"青藏高原形成演化及其环境;资源效应"(编号 :G19980 40 80 0 ) ;国家自然科学基金!项目"2 0ka以来

摘　　要：依据封闭流域全流域水量平衡模式 ,模拟了青藏高原西南部 3个封闭流域在 40～ 30 ka BP期间 ,高湖面稳定存在时期的古水量平衡 ,重建了各流域的古降水量。结果表明色林错 -纳木错流域、扎布耶 -拉果错流域、扎仓茶卡 -别苦则错流域当时的降水量分别约为 585± 2 5mm、565± 2 5mm、475± 2 5mm,相当于现在降水量的 1 .7、3.1、4.8倍。Geomorphic evidence from several closed lake basins in Tibetan Plateau indicates that the plateau experienced high lake levels during some episode of the period of 40~30 ka BP, and lakes covered an area of about several or tens times as large as at present. Using the equation of hydrologic and energy balance and the multiapproach method to estimate climate parameters such as albedo, cloudiness and vapor press, to calculate the evaporation, simulating the combined hydrologic and energy balance of Zhacang Ca...

关 键 词：40~30kaBP 高湖面稳定存在时期 多次逼近法 流域古降水量 湖泊补给系数 

分 类 号：P343.3[天文地球—水文科学]