巴丹吉林沙漠拐子湖地表辐射与能量平衡特征

doi:10.7522/j.issn.1000-694X.2014.00184

摘要/Abstract

摘要： 利用2013年7月、10月和2014年1月、4月巴丹吉林沙漠北缘拐子湖流动沙地地表辐射、土壤热通量、土壤温湿度和湍流通量等观测资料,分析了拐子湖地区地表辐射收支和能量通量在不同季节条件下的日变化特征及能量分配和闭合状况。结果表明:地表辐射各分量和能量平衡分量的月平均日变化结果整体均表现为标准的单峰型日循环形态,受不同季节影响,日变化曲线存在显著的季节变化差异,各分量均呈7月最大、1月最小、4月大于10月, 1月和7月的R_s↓、R_s↑、R_l↑、R_l↓、R_n日均值依次为98.9 W·m^-2和614.6 W·m^-2、34.6 W·m^-2和87.3 W·m^-2、276.9 W·m^-2和494.2 W·m^-2、214.8 W·m^-2和385.0 W·m^-2、0.4 W·m^-2和128.7 W·m^-2。与塔中、肖塘等地相比,该区域具有相对较高的地表反照率,整体呈冬季高夏季低,年均0.34。1月和7月的H、LE、G₀日均值依次为4.7 W·m^-2和78.8 W·m^-2、0.3 W·m^-2和20.3 W·m^-2、2.9 W·m^-2和35.0 W·m^-2。从能量分配来看,研究区干旱的气候和极低的植被覆盖造成了各季节全天潜热通量占净辐射份额始终较小,白天以感热为能量的主要消耗形式,土壤热通量次之。此外,R_n于正午达到日峰值后逐渐减小,受辐射强迫升温的地面以感热形式对空气的热量输送却不断持续,而促使H/R_n日间始终保持明显的增长趋势。

关键词: 巴丹吉林沙漠, 拐子湖, 地表辐射, 能量通量, 能量闭合

Abstract: In this paper, we analyzed the monthly mean diurnal variation characteristics of the surface radiation budget, energy flux and energy closure condition over the Guaizi Lake shifting sandy land in different seasons by use of surface radiation and turbulent flux data from July 2013 to April 2014. The result indicated that under no precipitation condition, the monthly average daily variation of each component of surface radiation and energy balance both showed the standard unimodal-type daily cycle pattern. Meanwhile, influenced by the difference of seasons, the daily variation curve had apparent seasonal variation, with every component manifested a feature of being maximum in July and minimum in January, and of being bigger in April than in October. The diurnal average of R_s↓, R_s↑, R_l↑, R_l↓, R_n in January and July was 98.9 W·m^-2 and 614.6 W·m^-2, 34.6 W·m^-2 and 87.3 W·m^-2, 276.9 W·m^-2 and 494.2 W·m^-2, 214.8 W·m^-2 and 385.0 W·m^-2, 0.35 W·m^-2 and 128.7 W·m^-2, respectively. The annual average surface albedo was 0.34, which was higher than in Tazhong and Xiaotang. The surface albedo in January was higher in Guaizi Lake area than in July. The diurnal average of H, LE, G₀ in January and July was 4.7 W·m^-2 and 78.8 W·m^-2, 0.3 W·m^-2 and 20.3 W·m^-2, 2.9 W·m^-2 and 35.0 W·m^-2, respectively. From the perspective of energy distribution, the whole day latent heat flux in all seasons of the Guaizi Lake shifting sandy land always occupied a relatively low percent of net radiation, and in daytime, sensible heat was its main energy consumption form, second to which was soil heat conduction. After noon, R_n gradually declined, while influxes of sensible heat from ground surface to near surface air increased because of the lasting radiation force. Therefore, H/R_n kept increasing during day time.

Key words: Badain Jaran Desert, Guaizi Lake, ground surface radiation, energy flux, energy balance closure

中图分类号:

P422.4

杨帆, 买买提艾力·买买提依明, 何清, 郑新倩, 那木尔, 王毅, 许延强, 许鹏飞. 巴丹吉林沙漠拐子湖地表辐射与能量平衡特征[J]. 中国沙漠, 2015, 35(6): 1636-1643.

Yang Fan, Ali Mamtimin, He Qing, Zheng Xinqian, Na Muer, Wang Yi, Xu Yanqiang, Xu Pengfei. Surface Radiation and Energy Balance in the GuaiziLake of the Badain Jaran Desert[J]. JOURNAL OF DESERT RESEARCH, 2015, 35(6): 1636-1643.

参考文献

[1] Pee M C,Finlayson B L,McMahon T A.Updated world map of the Koppen-Geiger climate classification[J].Hydrology and Earth System Sciences,2007,11(5):1633-1644.
[2] Yang T,Wang X Y,Zhao C Y,et al.Changes of climate extremes in a typical arid zone:observations and multimodel ensemble projections[J].Journal of Geophysical Research-Atmospheres,2011,116(D19):106-124.
[3] 张强,王胜.夏季绿洲生态环境对荒漠背景地表能量过程的扰动[J].生态学报,2005,25(10):2459-2466.
[4] 张强,曹晓彦.敦煌地区荒漠戈壁地表热量和辐射平衡特征的研究[J].大气科学,2003,27(2):245-254.
[5] 刘宏谊,杨兴国,张强,等.敦煌戈壁冬夏季地表辐射与能量平衡特征对比研究[J].中国沙漠,2009,29(3):558-565.
[6] 岳平,张强,邓振镛,等.草原生长期地表辐射和能量通量月平均日变化特征[J].冰川冻土,2010,32(5):941-947.
[7] Holtslag A A M,Ek M.Simulation of surface fluxes and boundary layer development over the pine forest in HAPEX-MOBILHY[J].Journal of Applied Meteorology and Climatology,1996,35(2):202-213.
[8] Sellers P J,Hall F Q,Asrar Q,et al.The first ISLSCP field experiment(FIFE)[J].Bulletin of the American Meteorological Society,1988,69(1):22-27.
[9] Bolle H J,Andre J C,Arrue J L,et al.EFEDA:European field experiment in a desertification-threatened area[J].Annals of Geophysics,1993,11(2/3):173-189.
[10] Hall F G,Sellers P J,Apps M,et al.BOREAS:boreal ecosystem-atmosphere study[J].IEEE Geoscience and Remote Sensing Newsletter,1993,March:9-17.
[11] Halldin S,Gottschalk L,van de Griend A A,et al.NOPEX-a northern hemisphere climate processes land surface experiment[J].Journal of Hydrology,1998,212(12):172-187.
[12] 胡隐樵.黑河试验(HEIFE)能量平衡和水汽输送研究进展[J].地球科学进展,1994,9(4):30-34.
[13] 胡隐樵,左洪超.黑河试验(HEIFE)研究获重大成果[J].中国科学院院刊,1996,11(6):447-451.
[14] 吕达仁,陈佐忠,王庚辰,等.内蒙古半干旱草原土壤-植被-大气相互作用——科学问题与实验计划概述[J].气候与环境研究,1997,2(3):199-209.
[15] 吕达仁,陈佐忠,陈家宜,等.内蒙古半干旱草原土壤-植被-大气相互作用(IM GRASS)综合研究[J].地学前缘,2002,9(2):295-305.
[16] 张强,黄荣辉,王胜,等.西北干早区陆-气相互作用试验(NWC-ALIEX)及其研究进展[J].地球科学进展,2005,27(5):673-679.
[17] Liu S H,Yue X,Hu F.Using a Modified Soil-Plant-Atmosphere Scheme(MSPAS) to simulate the interaction between land surface processes and atmospheric boundary layer in semi-arid regions[J].Advances in Atmospheric Sciences,2004,21(2):245-259.
[18] 塔依尔,吕新,杨利勇.石河子垦区沙漠和绿洲下垫面生态条件下能量交换特征[J].中国沙漠,2007,27(3):478-482.
[19] 李帅,胡列群,何清,等.塔克拉玛干沙漠腹地地表辐射收支特征研究[J].中国沙漠,2012,32(4):1035-1044.
[20] 何清,缪启龙,李帅,等.塔克拉玛干沙漠腹地总辐射变化特征及影响因子分析[J].中国沙漠,2008,28(5):896-902.
[21] 王延慧,史玉光,买买提艾力·买买提依明,等.塔克拉玛干沙漠北缘辐射分量特征[J].中国沙漠,2013,33(6):1824-1831.
[22] 严坤,李生宇,雷加强,等.沙漠腹地人工绿地地表能量交换特征[J].干旱区地理,2012,31(3):433-440.
[23] 李建刚,奥银焕,李照国.夏季不同天气条件下沙漠辐射和能量平衡的对比分析[J].地理科学进展,2012,31(11):1443-1451.
[24] 马迪,吕世华,奥银焕,等.巴丹吉林沙漠不同下垫面辐射特征和地表能量收支分析[J].高原气象,2012,31(3):615-621.
[25] 胡文峰.巴丹吉林沙漠拐子湖地区春季风沙观测研究[D].乌鲁木齐:新疆师范大学,2012.
[26] 霍文,何清,杨兴华,等.中国北方主要沙漠沙尘粒度特征比较研究[J].水土保持研究,2011,18(6):6-11.
[27] Webb E K,Pearman G I,Leuning R.Correction of flux measurements for density effects due to heat and water vapor transfer[J].Quarterly Journal of the Royal Meteorological Society,1980,106(447):85-100.
[28] 阳坤,王介民.一种基于土壤温湿资料计算地表土壤热通量的温度预报校正法[J].2008,38(2):243-250.
[29] 金莉莉,何清,李振杰,等.塔克拉玛干沙漠不同下垫面太阳总辐射比较[J].中国沙漠,2014,34(2):498-506.
[30] 王慧.黑河下游鼎新戈壁下垫面近地层能量输送及微气象特征研究[D].北京:中国科学院研究生院,2007.
[31] 岳平,李耀辉,张良,等.青藏高原林芝与四川盆地温江地区晴天辐射和能量平衡特征[J].冰川冻土,2012,34(6):1328-1335.
[32] 田磊.西北干旱半干旱地区地表辐射的观测研究[D].兰州:兰州大学,2011.
[33] 张永强,沈彦俊,刘昌明,等.华北平原典型农田水、热与CO₂通量的测定[J].地理学报,2002,57(3):333-342.
[34] 王延慧,买买提艾力·买买提依明,何清,等.塔克拉玛干沙漠北缘地表能量收支特征[J].沙漠绿洲气象,2014,8(3):34-41.
[35] 郭建侠,卞林根,戴永久.玉米生育期地表能量平衡的多时间尺度特征分析及不平衡原因的探索[J].中国科学(D辑),2008,38(9):1103-1111.
[36] Lee X,Hu X.Forest-air fluxes of carbon,water and energy over non-flat terrain[J].Boundary-Layer Meteorology,2002,103(2):227-301.
[37] Wilson K,Goldstein A,Falge E,et al.Energy balance closure at FLUXNET sites[J].Agricultural and Forest Meteorology,2002,113(1):223-243.