caa a22 4500 445299339 CHVBK 20180317142552.0 cr unu---uuuuu 170323e20100101xx s 000 0 eng 10.1007/s11430-010-0002-6 doi (NATIONALLICENCE)springer-10.1007/s11430-010-0002-6 Statistics of gravity wave spectra in the troposphere and lower stratosphere over Beijing [Elektronische Daten] [Wei Yuan, JiYao Xu, YongFu Wu, HongBin Chen, JianChun Bian] We utilize the temperature profiles with a height resolution of 50-m obtained over the Beijing Observatory in the period between January of 2002 and December of 2002 to study vertical wavenumber spectra of normalized temperature fluctuations in the 1.67-8.02 km and 13.57-19.92 km altitude ranges and compare them with linear saturation model. Results indicate that individual vertical wavenumber spectra reveal a considerable variability in both slope and amplitude. The observed variability is not consistent with the predictions of linear saturation model. However, mean vertical wavenumber spectra in the troposphere measured at different seasons and different local times show great similarities with fairly uniform negative slopes of ∼3.0 and amplitudes proportional to N 4, suggesting that the seasonal mean spectra observed in the troposphere completely obey the linear saturation model and are unique at present. In contrast, while the spectral slopes of the mean vertical wavenumber spectra in the lower stratosphere tend to support the explanation of the observed temperature fluctuations by linear saturation model, the spectral amplitudes diverge significantly from linear saturation model, suggesting that the seasonal mean spectra in the lower stratosphere do not obey the linear saturation model and are unique at present. The dominant vertical wavelengths derived from the observed mean vertical wavenumber spectra are estimated to be ∼3.2-∼2.1 km in the troposphere and lower stratosphere, which is generally consistent with those reported in the literature. Science in China Press and Springer Berlin Heidelberg, 2009 Balloon measurements nationallicence temperature and temperature spectra nationallicence gravity waves and saturation mode nationallicence dominant vertical wavelengths nationallicence Yuan Wei State Key Laboratory of Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, 100190, Beijing, China aut Xu JiYao State Key Laboratory of Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, 100190, Beijing, China aut Wu YongFu State Key Laboratory of Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, 100190, Beijing, China aut Chen HongBin LAGEO, Institute of Atmospheric Physics, Chinese Academy of Sciences, 100029, Beijing, China aut Bian JianChun LAGEO, Institute of Atmospheric Physics, Chinese Academy of Sciences, 100029, Beijing, China aut Science in China Series D: Earth Sciences SP Science in China Press 53/1(2010-01-01), 141-149 1674-7313 53:1<141 2010 53 11430 https://doi.org/10.1007/s11430-010-0002-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11430-010-0002-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yuan Wei State Key Laboratory of Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, 100190, Beijing, China aut NATIONALLICENCE 700 1- Xu JiYao State Key Laboratory of Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, 100190, Beijing, China aut NATIONALLICENCE 700 1- Wu YongFu State Key Laboratory of Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, 100190, Beijing, China aut NATIONALLICENCE 700 1- Chen HongBin LAGEO, Institute of Atmospheric Physics, Chinese Academy of Sciences, 100029, Beijing, China aut NATIONALLICENCE 700 1- Bian JianChun LAGEO, Institute of Atmospheric Physics, Chinese Academy of Sciences, 100029, Beijing, China aut NATIONALLICENCE 773 0- Science in China Series D: Earth Sciences SP Science in China Press 53/1(2010-01-01), 141-149 1674-7313 53:1<141 2010 53 11430 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer