Zobrazeno 1 - 10
of 314
pro vyhledávání: '"Marvin A. Geller"'
Publikováno v:
Monthly Weather Review. 149:1233-1245
The 1-s-resolution U.S. radiosonde data are analyzed for unstable layers, where the potential temperature decreases with increasing altitude, in the troposphere and lower stratosphere (LS). Care is taken to exclude spurious unstable layers arising fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5fcd2fbe9638185daf6d7f207c40d25c
https://doi.org/10.1175/mwr-d-20-0276.1
https://doi.org/10.1175/mwr-d-20-0276.1
Publikováno v:
Journal of Atmospheric and Oceanic Technology. 36:2247-2255
Thorpe analysis has been used to study turbulence in the atmosphere and ocean. It is clear that Thorpe analysis applied to individual soundings cannot be expected to give quantitatively reliable measurements of turbulence parameters because of the in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b290725c8b1f2d053f55e068bdafc6d
https://doi.org/10.1175/jtech-d-18-0225.1
https://doi.org/10.1175/jtech-d-18-0225.1
Publikováno v:
Journal of Geophysical Research: Atmospheres
Journal of Geophysical Research: Atmospheres, American Geophysical Union, 2019, 124 (14), pp.7553-7579. ⟨10.1029/2019JD030287⟩
Journal of Geophysical Research: Atmospheres, American Geophysical Union, 2019, 124 (14), pp.7553-7579. ⟨10.1029/2019JD030287⟩
International audience; n this study, we estimate atmospheric turbulence in the free atmosphere in terms of the Thorpe scale (LT) and eddy dissipation rate (ε) using US high vertical‐resolution radiosonde data (HVRRD) over 4 years (2012.9‐2016.8
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63314518c1effa73cc51e185ab654ba3
https://hal-insu.archives-ouvertes.fr/insu-02182580/file/2019JD030287.pdf
https://hal-insu.archives-ouvertes.fr/insu-02182580/file/2019JD030287.pdf
Autor:
Marvin A. Geller, Shu Meir Wang
Publikováno v:
Earth and Space Science. 3:362-369
Previous works have shown that a dry, idealized general circulation model could produce many features of the extratropical Tropopause Inversion Layer (TIL). In particular, the following have been shown, but no explanations were given for these result
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f855afbf4d45781430cb93e2bd0fe34
https://doi.org/10.1002/2015ea000150
https://doi.org/10.1002/2015ea000150
Publikováno v:
Journal of Geophysical Research: Atmospheres. 121:8886-8895
By means of theory, a simplified cartoon illustrating wave forcing of the stratospheric quasi-biennial oscillation (QBO), and general circulation modeling of the QBO, it is argued that the period of the QBO is mainly controlled by the magnitude of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e287a4106f599ab8fd173fae2c0337e7
https://doi.org/10.1002/2015jd024125
https://doi.org/10.1002/2015jd024125
Autor:
Igor Aleinov, Larissa Nazarenko, Tiehan Zhou, Marvin A. Geller, Drew Shindell, Maxwell Kelley, N. Tausnev, Reto Ruedy, Robert D. Field, Greg Faluvegi, Y. Cheng, Shan Sun
Publikováno v:
Journal of Advances in Modeling Earth Systems. 8:1092-1105
Using the NASA Goddard Institute for Space Studies (GISS) climate model, it is shown that with proper choice of the gravity wave momentum flux entering the stratosphere and relatively fine vertical layering of at least 500 m in the upper troposphere-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e79e207050e7467089ff30e3fb2c7d27
https://doi.org/10.1002/2016ms000699
https://doi.org/10.1002/2016ms000699
Publikováno v:
Journal of the Atmospheric Sciences. 73:555-578
A high–Reynolds number direct numerical simulation (DNS) is employed to explore the instability and turbulence dynamics accompanying an idealized multiscale flow that approximates such environments observed throughout the atmosphere. The DNS descri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44142dfc19afffb66f1a6814e9737f59
https://doi.org/10.1175/jas-d-14-0343.1
https://doi.org/10.1175/jas-d-14-0343.1
Autor:
Marvin A. Geller, Rolando R. Garcia, Alan Robock, Michaela I. Hegglin, John P. Burrows, Nili Harnik, Neal Butchart, Mark P. Baldwin, Adam A. Scaife, Lesley J. Gray, Thomas Birner, Kevin Hamilton, Guy Brasseur, Ulrike Langematz, Kaoru Sato
Publikováno v:
Meteorological Monographs
The stratosphere contains ~17% of Earth’s atmospheric mass, but its existence was unknown until 1902. In the following decades our knowledge grew gradually as more observations of the stratosphere were made. In 1913 the ozone layer, which protects
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c6001d495b4cd8f3998f8306bfd2af2
https://hdl.handle.net/21.11116/0000-000B-5977-C21.11116/0000-000B-5979-A
https://hdl.handle.net/21.11116/0000-000B-5977-C21.11116/0000-000B-5979-A
Publikováno v:
Journal of the Atmospheric Sciences. 72:2762-2768
Recent satellite determinations of global distributions of absolute gravity wave (GW) momentum fluxes in the lower stratosphere show maxima over the summer subtropical continents and little evidence of GW momentum fluxes associated with the intertrop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::edde86e66be6ef8cecdb8debdb2a792f
https://doi.org/10.1175/jas-d-15-0020.1
https://doi.org/10.1175/jas-d-15-0020.1