Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Plateau Meteorology》 2015-04
Add to Favorite Get Latest Update

Characteristics of Albedo over Different Underlying Surface in the Semi-Arid Area

ZHANG Chi;FAN Guangzhou;MA Zhuguo;CHENG Bingyan;ZHAO Tianbao;FENG Jinming;WANG Hesong;The Climatic Center of Chunking Meteorological Branch;Plateau Atmospheric and Environmental Research Key Laboratory of Sichuan Province,Chengdu University of Information Technology;Key Laboratory of Regional Climate - Environment for Temperate East Asia ( RCE - TEA) ,Institute of Atmospheric Physics,Chinese Academy of Sciences;  
Based on radiation- flux,regular meteorological data and simultaneously remote sensed MODIS EVI data,obtained from various underlying land-surface of nine Chinese semi-arid area stations from July to September in 2008 and 2009,the seasonal and diurnal mean albedo,the fit regression with precipitation and the oneweek continuous variations were characterized. The mutual effects among albedo,solar radiation and land-surface temperature in different weather conditions,including rain and snow,were deeply delved. The seasonal mean albedo over 4 types of underlying land-surface showthat the magnitude are decreased as following : desert grassland plateau grassland recessive grassland farmland,re-supporting the previous reports. The fit regression between the albedo and the precipitation on the plateau grassland,desert grassland and farmland are all significant( P- value 0. 05),but the recessive grassland is not available. The night rain scarcely effect the‘U'style distribution of the next day's diurnal albedo because the soil water cycling from latent heat or evaporation system attributed to the sensible heat on the desert grassland surface. While on the plateau grassland without snowcover,the albedo is mainly decided by the plant coverage per unit area and leaves property of plateau plant. The proper rainfall,lower shallowsoil temperature,land-surface air temperature and lower solar income radiation can make the albedo bigger on the snowcovered grassland. The newsnowand frozen soil might be the crisis for the albedo of highland grassland. For the recessive grassland,the diurnal ‘√'style distribution in a marked rainfall procedure will be more obvious,if mean albedo from 09: 00( Beijing Time,hereafter the same)- 11: 00 is much bigger due to more cloud scattering and the slowly increased albedo from 15: 00- 17: 00 mainly due to the fact that raising force of the lower solar motive angle is bigger than the decreasing effect of the increasing the shallowsoil water per column. In a diurnal ‘U 'style distribution of albedo on the farmland planted with corn,the mutual function between the solar motive angle and plant coverage per unit is conducive to the sudden increase of the mean albedo during 15: 00- 17: 00 in the rain day,and the shallowsoil water per column hardly contribute to the raised albedo at that time.
【Fund】: 国家重大科学研究计划项目(2012CB956201);; 科技部公益性行业(气象)专项(GYHY201106028);; 国家自然科学基金项目(41275085);; 重庆气象局业务技术攻关重点(团队)项目(ywgg-201508)
【CateGory Index】: P422.15
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
Chinese Journal Full-text Database 10 Hits
1 LI Jian-qiang;ZHANG Hong-jiang;CHEN Qi-bo;ZHOU Hong-feng;School of Environmental Science and Engineering,Southwest Forestry University;School of Soil and Water Conservation,Beijing Forestry University;Department of Soil and Water Conservation Technology,Kunming Engineering & Research Institute of Nonferrous Metallurgy Co.,Ltd;;ECO-BENEFITS ASSESSMENT OF HEDGEROW SYSTEMS WITH DIFFERENT CATEGORIES AND SPECIES IN THE THREE GORGES RESERVOIR AREA[J];Resources and Environment in the Yangtze Basin;2014-03
2 XU Xiuli;ZHANG Qi;LI Yunliang;LI Xianghu;WANG Xiaolong;State Key Laboratory of Lake Science and Environment,Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences;University of Chinese Academy of Sciences;;Inner-annual variation of soil water content and groundwater level in a typical islet wetland of Lake Poyang[J];Journal of Lake Sciences;2014-02
3 LI Yue;LI Hang;College of Resources and Environment,Southwest University;;The Stability of Soil Aggregates: An Overview[J];Journal of Anhui Agricultural Sciences;2014-11
4 XIONG Jiansheng;ZHANG Yu;WANG Shaoying;SHANG Lunyu;CHEN Yungang;SHEN Xiaoyan;Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions,Cold and Arid Regions Environment Research Institute,Chinese Academy of Science;University of Chinese Academy of Sciences;;Influence of Soil Moisture Transmission Scheme Improvement in CLM4.0 on Simulation of Land Surface Process in Qinghai-Xizang Plateau[J];Plateau Meteorology;2014-02
5 JIA Dongyu;WEN Jun;ZHANG Tangtang;XI Jiaju;Key laboratory of Land surface and Climate Change in Cold and Regions,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences;University of Chinese Academy of Sciences;;Response of Soil Water Content and Soil Thermal Conductivity on Precipitation in Loess Plateau[J];Plateau Meteorology;2014-03
6 WANG Tie-hang;CHEN Jing-jing;LI Yan-long;College of Civil Engineering,Xi'an University of Architecture and Technology;;Experimental Research on the Land Surface Evaporation of Unsaturated Loess[J];Arid Zone Research;2014-06
7 ZHAO Chun;SHAO Ming-an;WEI Xiao-rong;Department of Resources and Environment,Northwest A&F University;State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau,Northwest A&F University;Key Laboratory of Ecosystem Network Observation and Modeling,Institute of Geographical Sciences and Natural Resources Research,Chinese Academy of Sciences;;Responses of sweet potato's photosynthetic characteristics to soil permeability[J];Agricultural Research in the Arid Areas;2015-01
8 ZHOU Guang-lin;WANG Quan-jiu;LI Yun;SU Li-jun;Xi'an University of Technology;;Accuracy evaluation of simulating point source infiltration in field and water redistribution based on Hydrus- 3D model[J];Agricultural Research in the Arid Areas;2015-02
9 ZHAO Zhan-heng;YI Shu;HUANG Huan;LIANG Yu-xiang;College of Chemical Engineering ,Sichuan University;;Research on Heat and Mass Transfer Law between Two Drip Tapes[J];Modern Agricultural Science and Technology;2015-06
10 LI Guangwen;FENG Qi;Zhang Fuping;Cheng Aifang;The College of Tourism and Environment,Shanxi Normal University;School of Science,Qiqihar University;Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences;;The soil-water characteristic curve for grassland stand in upstream region of Heihe River[J];Journal of Arid Land Resources and Environment;2015-10
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved