Radiation Change Features at Alpine Wet Land in Source Region of the Yangtze River

doi:10.11924/j.issn.1000-6850.casb15050094

Abstract

Abstract: In order to research the radiation change features in the source region of the Yangtze River, using observed data from Longbao and Yushu in the source region of the Yangtze River, change features of global radiation, upward shortwave radiation, downward long wave radiation, upward long wave radiation, net radiation and photo- synthetically active radiation (PAR) were analyzed. The results showed that annual cumulant of global radiation was 6488 MJ/(m2 · a). Annual average clearness index was 0.755. Upward shortwave radiation was the highest in winter and the lowest in autumn. Albedo was high in winter and low in summer and annual average albedo was 0.27. Downward long wave radiation was higher in summer than that in winter. Annual cumulant of downward long wave radiation was 8612 MJ/(m2 ·a). Annual cumulant of upward long wave radiation was 9420 MJ/(m2·a). Daily change range of net radiation was high in summer and low in winter. Annual cumulant of net radiation was 2647 MJ/(m2 ·a). Annual cumulant of PAR was 13281 mol/m2. Annual average ratio of PAR to global radiation was 1.92 mol/MJ.

CLC Number:

P423

References

[1]Ye Duzheng, Gaoyouxi．Tibetan Plateau meteorology[M]．Beijing：Science Press,1979：89-101
[2]陈少勇,邢晓宾,张康林,董安祥.中国西北地区太阳总辐射的气候特征[J]. 资源科学, 2010, 32(8):1444-1451.
[3]徐祥德, 陈联寿．青藏高原大气科学试验研究进展[J]．应用气象学报,2007,17(6)：756-772．
[4]卞林根,陆龙骅,逯昌贵,等．1998年夏季青藏高原辐射平衡分量特征[J]．大气科学,2001,25(5)：577—588．
[5]马耀明,姚檀栋,王介民．青藏高原能量和水循环试验研究—— GAME/Tibet与CAMP/Tibet研究进展[J]．高原气象,2006,25(2)：344-351．
[6]李国平,肖杰．青藏高原西部地面反射率的日变化以及与若干气象因子的关系[J]．地理科学,2007,27(1)：63—67．
[7]沈志宝. 青藏高原地面总辐射的地理分布及其季节变化特征[J]. 高原气象,1987, 6(4),326-334.
[8]季国良．青藏高原能量收支观测实验的新进展[J]．高原气象,1999,18(3)：333-340
[9]Tao Shiyan,Chen Lianshou,Xuxiangde,et aL. The researching advance of the second atmospheric experiment over the Tibetan Plateau(I)[M]．Beijing：Science Press,1999．
[10]李栋梁,季国良,吕兰芝．青藏高原地面加热场强度对北半球大气环流和中国天气气候异常的影响研究[J]．中国科学(D辑),2001,31(增刊)：312～319
[11]李跃清．青藏高原地面加热及上空环流场与东侧旱涝预测的关系[J]．大气科学,2003,27(1)：107～l14
[12]李栋梁,李维京,魏丽,等．青藏高原感热及其异常的诊断分析[J]．气候与环境研究,2003,8(1)：71-83
[13]Yang Kun,Koike Toshio,Ishikawa Hirohlko,et a1．Analysis of the surface energy budget at a site of GAMEPTibet using a Single2Source Mode1[J]. Journal of the Meteorological Society of Japan,2004,82(1)：131-153
[14]李韧,季国良,杨文．五道梁地区总辐射的年际变化[J]．高原气象,2005,24(2)：173-177
[15]李韧,杨文,季国良,等．40年来藏北高原五道梁地区地表加热场的变化特征[J]．太阳能学报,2005,26(6]：868～873.
[16]王少影,张宇,吕世华等 .玛曲高寒草甸地表辐射与能量收支的季节变化[J].高原气象, 2012,V31(3): 605-614.
[17]姚济敏,赵林,谷良雷,等．青藏高原唐古拉垭口地区小气候特征[J]．冰川冻土,2009,31(4)：650-658．
[18]肖瑶, 赵林, 李韧, 等. 藏北高原多年冻土区地表反照率特征分析[J]. 冰川冻土,2010,32(3)：480-488.
[19]马伟强,马耀明,李茂善,等. 藏北高原地区地表辐射出支和能量平衡的季节变化[J]. 冰川冻土,2005,27(5)：673-679.
[20]次仁尼玛, 单增罗布, 宣越健等 .青藏高原羊八井地区地表辐射的季节变化特征[J] 高原气象, 2013,32(5): 1253-1260
[21]王蕾迪, 吕达仁, 章文星.西藏羊八井和纳木错太阳辐射特征分析[J].高原气象, 2013,32(2): 315-326
[22]王文玲, 胡波, 安俊琳,等.拉萨光合有效辐射的变化趋势及其估算方程的建立[J]. 高原气象, 2013,32(3): 682-688.
[23]孙琳婵, 赵林, 李韧,等.青藏高原西大滩地区光合有效辐射的基本特征[J]. 冰川冻土, 2010,32(6): 1136-1143.