Zobrazeno 1 - 10
of 109
pro vyhledávání: '"M. J. Alexander"'
Autor:
T. P. Banyard, C. J. Wright, S. M. Osprey, N. P. Hindley, G. Halloran, L. Coy, P. A. Newman, N. Butchart, M. Bramberger, M. J. Alexander
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 2465-2490 (2024)
The quasi-biennial oscillation (QBO) was unexpectedly disrupted for only the second time in the historical record during the 2019/2020 boreal winter. As the dominant mode of atmospheric variability in the tropical stratosphere and a significant sourc
Externí odkaz:
https://doaj.org/article/8e5adbe0536d4938ad4312f6af8f89e3
Autor:
C. G. Kruse, M. J. Alexander, M. Bramberger, A. Chattopadhyay, P. Hassanzadeh, B. Green, A. Grimsdell, L. Hoffmann
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 16, Iss 4, Pp n/a-n/a (2024)
Abstract Convection‐generated gravity waves (CGWs) transport momentum and energy, and this momentum is a dominant driver of global features of Earth's atmosphere's general circulation (e.g., the quasi‐biennial oscillation, the pole‐to‐pole me
Externí odkaz:
https://doaj.org/article/130cc866b1f1418b9f17e6fdcb833fa4
Autor:
M. Weimer, C. Wilka, D. E. Kinnison, R. R. Garcia, J. T. Bacmeister, M. J. Alexander, A. Dörnbrack, S. Solomon
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 15, Iss 9, Pp n/a-n/a (2023)
Abstract Many chemical processes depend non‐linearly on temperature. Gravity‐wave‐induced temperature perturbations have been shown to affect atmospheric chemistry, but accounting for this process in chemistry‐climate models has been a challe
Externí odkaz:
https://doaj.org/article/01fb8803421c43779c176eb6870cc27e
Publikováno v:
Atmospheric Measurement Techniques, Vol 16, Pp 791-807 (2023)
A novel fiber-optic distributed temperature sensing instrument, the Fiber-optic Laser Operated Atmospheric Temperature Sensor (FLOATS), was developed for continuous in situ profiling of the atmosphere up to 2 km below constant-altitude scientific bal
Externí odkaz:
https://doaj.org/article/97b8a6d8a3f94a7b8aa97e58ea222583
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 15379-15402 (2022)
Current climate models have difficulty representing realistic wave–mean flow interactions, partly because the contribution from waves with fine vertical scales is poorly known. There are few direct observations of these waves, and most models have
Externí odkaz:
https://doaj.org/article/c0377bc41be24ed3ac8ece28cd5dde4b
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 5873-5886 (2021)
Atmospheric gravity waves (GWs) are a critically important dynamical mechanism in the terrestrial atmosphere, with significant effects on weather and climate. They are geographically ubiquitous in the middle and upper atmosphere, and thus, satellite
Externí odkaz:
https://doaj.org/article/48247484ed4842099a9b8d219e06fea2
Autor:
N. P. Hindley, C. J. Wright, N. D. Smith, L. Hoffmann, L. A. Holt, M. J. Alexander, T. Moffat-Griffin, N. J. Mitchell
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 15377-15414 (2019)
Atmospheric gravity waves play a key role in the transfer of energy and momentum between layers of the Earth's atmosphere. However, nearly all general circulation models (GCMs) seriously under-represent the momentum fluxes of gravity waves at latitud
Externí odkaz:
https://doaj.org/article/8315756c1c3244c3b04f750f4cf5be3b
Publikováno v:
Atmospheric Measurement Techniques, Vol 11, Pp 215-232 (2018)
We investigate stratospheric gravity wave observations by the Atmospheric InfraRed Sounder (AIRS) aboard NASA's Aqua satellite and the High Resolution Dynamics Limb Sounder (HIRDLS) aboard NASA's Aura satellite. AIRS operational temperature retrie
Externí odkaz:
https://doaj.org/article/3287f15ed52949fd9ccfbaacd62c3f84
Publikováno v:
Atmospheric Chemistry and Physics, Vol 17, Pp 8553-8575 (2017)
Gravity waves (GWs) transport momentum and energy in the atmosphere, exerting a profound influence on the global circulation. Accurately measuring them is thus vital both for understanding the atmosphere and for developing the next generation of w
Externí odkaz:
https://doaj.org/article/8612f48df9c5401eb048e949d80dca04
Publikováno v:
Atmospheric Chemistry and Physics, Vol 17, Iss 4, Pp 2901-2920 (2017)
Atmospheric gravity waves yield substantial small-scale temperature fluctuations that can trigger the formation of polar stratospheric clouds (PSCs). This paper introduces a new satellite record of gravity wave activity in the polar lower stratospher
Externí odkaz:
https://doaj.org/article/2255c93183a2421c93670a27ffca73e4