On the Discrepancy in Simultaneous Observations of the Structure Parameter of Temperature Using Scintillometers and Unmanned Aircraft
On the Discrepancy in Simultaneous Observations of the Structure Parameter of Temperature Using Scintillometers and Unmanned Aircraft
复制标题
闪烁仪与无人机同时观测温度结构参数的差异
DOI:
10.1007/s10546-015-0086-9
复制
发表时间:
2016
影响因子:
4.3
通讯作者:
B. Maronga
中科院分区:
文献类型:
--
作者:
F. Beyrich;A.F. Moene;J. Bange;A. Platis;S. Martin;B. Maronga
We elaborate on the preliminary results presented in Beyrich et al. (in Boundary-Layer Meteorol 144:83–112, 2012), who compared the structure parameter of temperature () obtained with the unmanned meteorological mini aerial vehicle () versusobtained with two large-aperture scintillometers (LASs) for a limited dataset from one single experiment (LITFASS-2009). They found thatobtained from thedata is significantly larger than that obtained from the LAS data. We investigate if similar differences can be found for the flights on the other six days during LITFASS-2009 and LITFASS-2010, and whether these differences can be reduced or explained through a more elaborate processing of both the LAS data and thedata. This processing includes different corrections and measures to reduce the differences between the spatial and temporal averaging of the datasets. We conclude that the differences reported in Beyrich et al. can be found for other days as well. For the LAS-derived values the additional processing steps that have the largest effect are the saturation correction and the humidity correction. For the-derived values the most important step is the application of the scintillometer path-weighting function. Using the true air speed of theto convert from a temporal to a spatial structure function rather than the ground speed (as in Beyrich et al.) does not change the mean discrepancy, but it does affectvalues for individual flights. To investigate whetherderived from thedata depends on the fact that the underlying temperature dataset combines spatial and temporal sampling, we used large-eddy simulation data to analyzefrom virtual flights with different mean ground speeds. This analysis shows thatdoes only slightly depends on the true air speed when averaged over many flights.
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影响因子:
4.3
作者:
W. Meijninger;A. E. Green;O. Hartogensis;W. Kohsiek;J. Hoedjes;R. Zuurbier;H. D. de Bruin
通讯作者:
W. Meijninger;A. E. Green;O. Hartogensis;W. Kohsiek;J. Hoedjes;R. Zuurbier;H. D. de Bruin
DOI:
--
发表时间:
1976
期刊:
影响因子:
--
作者:
M. Wesely
通讯作者:
M. Wesely
影响因子:
4.3
作者:
B. Maronga;A. Moene;D. Dinther;S. Raasch;F. Bosveld;B. Gioli
通讯作者:
B. Gioli
DOI:
--
发表时间:
2006-05
期刊:
--
影响因子:
--
作者:
A. Moene;W. Meijninger;W. Kohsiek;B. Gioli;F. Miglietta;F. Bosveld
通讯作者:
A. Moene;W. Meijninger;W. Kohsiek;B. Gioli;F. Miglietta;F. Bosveld
影响因子:
4.3
作者:
Sühring M;Raasch S
通讯作者:
Raasch S