CLIMATIC CHARACTERISTICS OF NET RADIATION IN THE EARTH-ATMOSPHERE SYSTEM OVER CHINA     

翁笃鸣  李炬 《Acta Meteorologica Sinica》1996,(2)

Investigated are effects of the total cloudiness and other factors on earth-atmosphere net radia-tion(EANR)and analyzed is its relation to other components and ground surface net radiation inthe context of ERBE and ISCCP.Evidence suggests that planetary scale albedo and earth-atmo-sphere short wave absorption radiation have maximum effect on the net radiation under study,withthe influence of cloud and latitude displayed predominantly through the two factors;OLR has rela-tively weak effect;the earth-atmosphere net radiation is well correlated with surface net radiation.Analysis is also performed of the geographic distribution of the earth-atmosphere net radiationthroughout China,and the annual curve of the net radiation on a local basis is marked by high(low)value in summer(winter)with the impact of factors.including total cloudiness responsiblelargely for the shift of the months with maximum.  相似文献   

中国大气有效辐射的气候学研究   总被引：1，自引：0，他引：1  

翁笃鸣  周自江 《气象科学》1995,15(2):1-9

根据ＥＲＢＥ的ＯＬＲ资料以及地表有效辐射气候计算资料，探讨了全国大气有效辐射与气温，大气含水量，总云量等因子的关系，以及纬度，拔海高度对它的影响，得出了大气有效辐射的气候计算式。分析了其在全国的分布，指出，１，７月和年平均大气有效辐射场大致为一不对称的鞍形场，其高值区分别位于东南沿海和西北内陆，青藏高原为主要低值区。  相似文献   

中国地—气系统短波吸收辐射分布特征     

翁笃鸣 《南京气象学院学报》1995,18(1):8-14

根据ERBE和ISCCP资料讨论了地－气系统短波吸收辐射及其年较差在全国的分布，分析了其与总云量、行星和地表反射率以及地面吸收辐射的相互关系。发现在冬季地－气系统短波吸收辐射分布主要呈南高北低型，夏季分布形势为一不对称的大鞍形场，大致与行星反射率分布反向对应。地－气短波吸收辐射与总云量呈负相关，高相关区在我国东部。各站地－气短波吸收辐射与地面吸收辐射的相关系数普遍高达0．900以上。此一特点为从气候上利用地－气吸收辐射反演地面吸收辐射提供初步可能。  相似文献   

晴天太阳总辐射的参数化及气候计算   总被引：6，自引：0，他引：6  

翁笃鸣  李矩 《气象科学》1997,17(1):1-9

在文献［１］基础上，根据北京、拉萨等站１７３５次实测资料，进一步讨论了应用别尔梁德理论式Ｑｏ＝Ｉｏｓｉｎｈ／１＋ｆｍ作晴天总辐射参数化的可能性。提出了ｆ 的新参数化方案。与原方案相比，保持较高拟合精度外，新方案的普适性更好。按本方案计算的各地晴天总辐射廓线形式，与国内外地面和飞艇探测结果一致。对青藏高原６站所作晴天总辐射气候计算也与实例值相符。  相似文献   

CLIMATOLOGICAL CALCULATION OF SURFACE LATENT HEAT OVER CHINA          下载免费PDF全文

高庆先  王祖峰  翁笃鸣 《Acta Meteorologica Sinica》1997,(1)

In the context of measurements from all the thermal balance stations over China,two methodsof calculating surface latent heat for its climatic features are proposed through experiments with arange of schemes,one being the empirical type based on the relationship between ground latent heatand vapor pressure,and the other upon the Bowen ratio parameterization.Either of them has itsunique merits so that they can be considered in specific case to have higher accuracy.On this basis.investigation is done of the feature of geographic distribution and annual variability of the heatacross the country.  相似文献   

中国地气热源研究     

翁笃鸣 《地球科学进展》1995,10(5):504-504

中国地气热源研究本研究系国家自然科学基金项目“中国地气热源与气候变化”（４９１７５２４３）的第一分题。主要完成以下三方面工作：（１）地表热源研究。根据我国仅有的北京等６个热平衡站资料，逐项研究了我国地表热平衡各分量的气候计算问题。所提感热、潜热和土中...  相似文献   

丘陵山区地面热平衡场数值模拟的初步探讨   总被引：1，自引：0，他引：1  

李慧  翁笃鸣 《气象学报》1992,50(4):485-491

本文根据丘陵山区地形参数(平均坡度、坡向及地形遮蔽角)的数值模拟结果,以及在完成山区地面辐射场计算的基础上,从地表能量平衡方程出发,初步建立起零维地表能量平衡模式,并利用考察资料和附近气象站资料,对大别山南段赵公岭山区3.0×3.5km~2范围内100m网格点进行计算,首次绘制出热平衡各分量在该山区的分布图。结果表明,山区地面热平衡场与地形要素配合较好,显示出地形条件的决定性作用。  相似文献   

NUMERICAL SIMULATION OF THE SURFACE RADIATION FIELD IN A HILLY COUNTRY          下载免费PDF全文

李占清  翁笃鸣 《Acta Meteorologica Sinica》1990,(1)

Based on the simulations of the topographic parameters(mean orientation,slope,and terrain screenangle)in a hilly land,discussion is made term by term of the technique for modelling of all components isdone in the surface radiation balance over a rugged terrain,thus presenting a computer model for each com-ponent.In terms of experimental data,the components is calculated for the mesh grids of 100m×100 meach over 3.0×3.5 km~2 in the Zhaogongling,southern Dabie Mountains and a map is prepared showingthe distribution of these components for January and July.Results show that the hilly-land surface radiationfield matches the terrain element field quite well,which reveals the determining function of the latter,withorientational effect dominant in winter and terrain screen effect most significant in summer.The simulationtechnique presented is in principle applicable to the calculation for a radiation field in any kind of topogra-phy,thus providing a means for further exploration of hilly-land climate resource.  相似文献   

中国坡地净辐射的气候计算和分析   总被引：1，自引：0，他引：1  

翁笃鸣  孙治安 《南京气象学院学报》1990,13(3):376-385

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青藏高原夏季的散射辐射   总被引：4，自引：0，他引：4  

翁笃鸣  张文宗 《南京气象学院学报》1984,(1)

本文讨论了青藏高原夏季的散射辐射状况,着重分析了太阳高度角、大气透明度、拔海高度和云状、云量对散射辐射的影响,计算并分析了Berlage系数α和散射辐射日总量的变化特点。  相似文献