LAS在西北干旱区荒漠均匀下垫面的观测研究
Observation Study in Desert Homogeneous of Arid Region in Northwestern of China Using Large Aperture Scintillometers
查看参考文献32篇
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文摘
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利用"古浪非均匀近地层观测试验"的仪器平行对比观测部分试验数据,首先分析荒漠均匀下垫面大孔径闪烁仪(Large Aperture Scintillometer,LAS)光径线上等间距架设的4台涡动相关仪(EddyCovariance System,EC)观测的摩擦速度和感热通量的一致性。然后,基于4种不同下垫面建立稳定度普适函数分析,利用4台EC观测摩擦速度平均值,计算了LAS观测区域的感热通量,进而比较了LAS和EC两者观测值的差异。结果表明,4台EC观测的摩擦速度与感热通量一致性好,摩擦速度的差别<10%,感热通量的差别在10%左右。4种稳定度普适函数计算的LAS区域感热通量在白天、夜晚与EC观测平均值变化趋势一致,但计算值偏大;TAG(Thiermann and Grassl)稳定度普适函数计算值与EC观测平均值较接近。其主要原因除不同下垫面试验所得稳定度普适函数的差异外,Kipp&Zonen LAS所测感热通量的系统性偏高不可忽视。 |
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其他语种文摘
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Using the experimental data that came from the instrument parallel comparison in Gulang Heterogeneous Underlying Surface Layer Experiment, the consistency of friction velocity and sensible heat flux observed by four sets of EC (Eddy Covariance System) which equidistantly lay on light path line of LAS (Large Aperture Scintillometer) was analyzed at first, and then the difference among the calculated regional sensible heat fluxs observed by LAS based on universal stability functions established by four different kinds of underlying surface employing the mean value of observation friction velocity from four sets of EC was analyzed, finally a further comparison between the two observations of LAS and EC was made. The results show that, friction velocity and sensible heat flux observed by four sets of EC have a good trend of consistency; the difference of friction velocity is less than 10%, and the difference of sensible heat flux is about 10%. The regional sensible heat flux of LAS calculated by four kinds of universal stability functions in the daytime and nighttime have identical changing trend with the average observed by EC, the calculated value is usually bigger than normal, the calculated value of TAG universal stability function is closer to the average value observed by EC. Except for the main reason that universal stability functions from experiments of different underlying surface have some differences, the sensible heat flux observed by Kipp&Zonen LAS is systemic higher can not be ignored too. |
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来源
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高原气象
,2013,32(1):56-64 【核心库】
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关键词
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大孔径闪烁仪(LAS)
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涡动相关法(EC)
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区域感热通量
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稳定度普适函数
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地址
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1.
兰州大学大气科学学院, 甘肃, 兰州, 730000
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中国科学院寒区旱区环境与工程研究所, 甘肃, 兰州, 730000
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-0534 |
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学科
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大气科学(气象学) |
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基金
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国家自然科学基金项目
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文献收藏号
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CSCD:4780979
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参考文献 共
32
共2页
|
|
1.
胡隐樵. 黑河实验(HEIFE)研究获重大成果.
中国科学院院刊,1996,11(6):447-451
|
被引
8
次
|
|
|
|
|
2.
王介民. 近地层能量平衡闭合问题——综述及个例分析.
地球科学进展,2009,24(7):705-712
|
被引
62
次
|
|
|
|
|
3.
张杰. 空气动力学阻抗算法在半干旱区的应用比较和遥感反演.
高原气象,2010,29(3):662-670
|
被引
6
次
|
|
|
|
|
4.
王丙兰. 边界层局地相似理论在草原下垫面的适用性检验.
高原气象,2012,31(1):28-37
|
被引
6
次
|
|
|
|
|
5.
吕少宁. 不同平均时间对LOPEX10资料涡动相关湍流通量计算结果影响的探讨.
高原气象,2012,31(6):1530-1538
|
被引
7
次
|
|
|
|
|
6.
De Bruin H A R. Displaced beam small aperture scintillometer test.Part I: The WINTEX data-set.
Bound-Layer Meteor,2002,105:129-148
|
被引
4
次
|
|
|
|
|
7.
Meijninger W M L. Determination of area averaged sensible heat fluxes with a large aperture scintillometer over a heterogeneous surface Flevolandfield experiment.
Bound-Layer Meteor,2002,105:37-62
|
被引
31
次
|
|
|
|
|
8.
Kohsiek W. Saturation of the large aperture scintillometer.
Bound-Layer Meteor,2006,121:111-126
|
被引
12
次
|
|
|
|
|
9.
Asanuma J. Measurements of regional sensible heat flux over Mongolian grassland using large aperture scintillometer.
J Hydro,2007,333:58-67
|
被引
7
次
|
|
|
|
|
10.
Chehbouni A. Estimation of heat and momentum fluxes over complex terrain using a larger aperture scintillometer.
Agric Forest Meteor,2000,105:215-226
|
被引
16
次
|
|
|
|
|
11.
Randow C V. Exploring eddy-covariance and large aperture scintillometer measurement in an Amazonian rain forest.
Agric Forest Meteor,2008,148:680-690
|
被引
22
次
|
|
|
|
|
12.
Meijninger W M L. The sensible heat fluxes over irrigated areas in western Turkey determined with a large aperture scintillometer.
J Hydro,2000,229:42-49
|
被引
22
次
|
|
|
|
|
13.
陈忠明. 四川盆地丘陵地区地气相互作用的观测分析.
高原气象,2003,22(增刊):40-44
|
被引
5
次
|
|
|
|
|
14.
彭谷亮. 大孔径闪烁仪湍流通量印痕模型的建立与应用.
北京大学学报(自然科学版),2007,43(6):822-826
|
被引
21
次
|
|
|
|
|
15.
卢俐.
地表显热通量的观测、影响因子以及尺度关系的研究,2008:1-164
|
被引
1
次
|
|
|
|
|
16.
卢俐. 不同下垫面大孔径闪烁仪观测数据处理与分析.
应用气象学报,2009,20(2):171-178
|
被引
24
次
|
|
|
|
|
17.
马迪. 大孔径闪烁仪测量戈壁地区感热通量.
高原气象,2010,29(1):56-62
|
被引
10
次
|
|
|
|
|
18.
艾力·买买提明. 塔克拉玛干沙漠腹地LAS和EC观测感热通量对比分析.
地球科学进展,2010,25(11):1228-1235
|
被引
6
次
|
|
|
|
|
19.
王维真. 大孔径闪烁仪在黑河流域的应用分析研究.
地球科学进展,2010,25(11):1208-1215
|
被引
9
次
|
|
|
|
|
20.
宫丽娟. 涡动相关仪和大孔径闪烁仪观测通量的空间代表性.
高原气象,2009,28(2):246-256
|
被引
32
次
|
|
|
|
|
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