干旱区生态环境知识资源中心(Arid): 巴丹吉林沙漠腹地夏季不同天气条件下陆-湖面辐射收支与能量分配特征对比

Arid

	巴丹吉林沙漠腹地夏季不同天气条件下陆-湖面辐射收支与能量分配特征对比
其他题名	Characteristics of Radiation Budget and Energy Partitioning on Land and Lake Surface under Different SummerWeather Conditions in the Hinterland of Badain Jaran Desert
	马宁 1; 王乃昂1 ; 黄银洲 1; 李宏宇 2; 路俊伟 1
来源期刊	自然资源学报
ISSN	1000-3037
出版年	2015
卷号	30 期号:5 页码:796-809
中文摘要	论文以巴丹吉林沙漠腹地陆面和湖面能量平衡系统的定位观测数据为基础,对比分析了夏季不同天气条件下两种典型下垫面的辐射收支和能量分配之异同,评价了典型晴天的辐射收支与能量分配对季节平均气候态的代表性。结果显示,按晴天-多云-阴天-降水的顺序,陆面与湖面的总辐射、反射短波辐射和净辐射之日均值呈逐渐减小趋势,大气逆辐射则逐渐增大。湖面长波辐射亦随这一天气变化顺序逐渐增大,暗示地下水携带的热量和局地平流作用对湖水表面温度皆有影响。非降水天气时,陆面感热通量占净辐射的主要部分。云和降水皆会直接影响陆面的能量分配,感热通量一般随云量的增加而减小,潜热通量则逐渐增大。湖面典型晴天的午后存在逆温现象,然降水天气时,湖面空气温度降低较快,破坏了湖面上空的逆温层,即感热通量皆为正值。湖面的潜热通量主要决定于风速,故其对天气变化响应不明显。在地下水携带的热量和局地平流共同作用下,湖面的感热通量和潜热通量之和大于湖面的净辐射。不同天气下陆面和湖面的波文比差异较大。陆面典型晴天的辐射收支和能量分配与季节平均气候态相差不大,湖面的典型晴天则不具有季节平均气候态的代表性。
英文摘要	Based on the in-situ observations on land and lake surface in the hinterland of Badain Jaran Desert, we compared the diurnal variation of radiation flux, energy partitioning and bowen ratio under different weather conditions in summer. The results showed that the radiation flux on two underlying surfaces performed significant difference in different weathers. The downward shortwave radiation, upward shortwave radiation and net radiation (R_n) on both land and lake surfaces decreased in the order ofsunny- cloudy- overcast- rainy day, while the downward long wave radiation increased in the same order. However, the increase of upward long wave radiation on the lake surface indicated that energy from groundwater and advection influenced the temperature of lake surface to some extent. The sensible heat took up the main portion of R_n on land surface on a sunny day. Both cloud and rain could lead to significant change of bowen ratio on land surface. Apparent temperature inversion was observed on the lake surface in the afternoon on sunny days because of the negative H; however, this phenomenon could be broken by the rain. The latent heat was decided by wind speed rather than temperature, and it showed no relevant relationship with weathers change. The advection effect and groundwater recharge could enable the sum of H and LE larger than the R_n on the lake surface. The radiation budget and energy partitioning of land surface on typical sunny days showed no significant difference to the monthly average status; however, the radiation and energy partitioning on the lake surface on sunny days showed great deviation from the monthly average.
中文关键词	陆面过程 ; 辐射收支 ; 能量分配 ; 涡度相关 ; 巴丹吉林沙漠
英文关键词	land surface process radiation budget energy partitioning eddy covariance Badain Jaran Desert
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:5436922
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233876
作者单位	1.兰州大学资源环境学院干旱区气候变化与水循环研究中心, 兰州, 甘肃 730000, 中国; 2.南京大学大气科学学院, 南京, 江苏 210000, 中国
推荐引用方式 GB/T 7714	马宁,王乃昂,黄银洲,等. 巴丹吉林沙漠腹地夏季不同天气条件下陆-湖面辐射收支与能量分配特征对比[J]. 兰州大学,2015,30(5):796-809.
APA	马宁,王乃昂,黄银洲,李宏宇,&路俊伟.(2015).巴丹吉林沙漠腹地夏季不同天气条件下陆-湖面辐射收支与能量分配特征对比.自然资源学报,30(5),796-809.
MLA	马宁,et al."巴丹吉林沙漠腹地夏季不同天气条件下陆-湖面辐射收支与能量分配特征对比".自然资源学报 30.5(2015):796-809.