Zobrazeno 1 - 10
of 5 114
pro vyhledávání: '"H.‐L. Liu"'
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 16, Iss 6, Pp n/a-n/a (2024)
Abstract A new version of NCAR Whole Atmosphere Community Climate Model with thermosphere/ionosphere extension (WACCM‐X) has been developed. The main feature of this version is the species‐dependent spectral element (SE) dynamical core solved on
Externí odkaz:
https://doaj.org/article/4acb597912c147d59aae1079fd01036a
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 16, Iss 6, Pp n/a-n/a (2024)
Abstract The non‐hydrostatic Model for Prediction Across Scales‐Atmosphere (MPAS‐A) dynamical core has recently been adapted for the Specified Chemistry Whole Atmosphere Community Climate Model (SC‐WACCM). In this study, the mean zonal wind a
Externí odkaz:
https://doaj.org/article/c545113fd3944aaa8174b542539e320d
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 12, Pp n/a-n/a (2024)
Abstract Observations show that equatorial ionospheric vertical drifts during solar minimum differ from the climatology between late afternoon and midnight. By analyzing WACCM‐X simulations, which reproduce this solar cycle dependence, we show that
Externí odkaz:
https://doaj.org/article/6d784a75afc84d3c969362695d1a65d0
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 3, Pp n/a-n/a (2024)
Abstract The high‐resolution Whole Atmosphere Community Climate Model with thermosphere/ionosphere extension (WACCM‐X) is used to study the impacts of gravity waves (GWs) on the thermospheric circulation and composition. The resolved GWs are foun
Externí odkaz:
https://doaj.org/article/7c6bb298ed6d442d82c3a9a0b2559370
Autor:
J. D. Huba, H.‐L. Liu
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 20, Pp n/a-n/a (2023)
Abstract We show that atmospheric gravity waves can generate plasma ducts and irregularities in the plasmasphere using the coupled SAMI3/WACCM‐X model. We find the equatorial electron density is irregular as a function of longitude which is consist
Externí odkaz:
https://doaj.org/article/82b39560b80a461b95c51986dfade352
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 15, Pp n/a-n/a (2023)
Abstract We report results from a self‐consistent global simulation model in which a large‐scale equatorial plasma bubble (EPB) forms during a midnight temperature maximum (MTM). The global model comprises the ionospheric code SAMI3 and the atmos
Externí odkaz:
https://doaj.org/article/f4afcf99a61f49a4a0229222d55b9de8
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 10, Pp n/a-n/a (2023)
Abstract High‐resolution Whole Atmosphere Community Climate Model with thermosphere/ionosphere extension is used to simulate the responses to the Hunga‐Tonga volcano eruption on 15 January 2022. Global propagation of the Lamb wave L’0 and L’1
Externí odkaz:
https://doaj.org/article/facb33e455a64afdb8a058faa596d40f
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 15619-15630 (2021)
The NCAR Whole Atmosphere Community Climate Model with thermosphere and ionosphere eXtension (WACCM-X) v2.1 has been extended to include the neutral and ion–molecule chemistry and dynamics of three metals (Mg, Na, and Fe), which are injected into t
Externí odkaz:
https://doaj.org/article/4b9e7932d3d7405f8b8470dc825d0ad4
Autor:
G. Stober, A. Kuchar, D. Pokhotelov, H. Liu, H.-L. Liu, H. Schmidt, C. Jacobi, K. Baumgarten, P. Brown, D. Janches, D. Murphy, A. Kozlovsky, M. Lester, E. Belova, J. Kero, N. Mitchell
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 13855-13902 (2021)
Long-term and continuous observations of mesospheric–lower thermospheric winds are rare, but they are important to investigate climatological changes at these altitudes on timescales of several years, covering a solar cycle and longer. Such long ti
Externí odkaz:
https://doaj.org/article/3df11b15026b4bef8470b2e402351c13
Autor:
M. Palmroth, M. Grandin, T. Sarris, E. Doornbos, S. Tourgaidis, A. Aikio, S. Buchert, M. A. Clilverd, I. Dandouras, R. Heelis, A. Hoffmann, N. Ivchenko, G. Kervalishvili, D. J. Knudsen, A. Kotova, H.-L. Liu, D. M. Malaspina, G. March, A. Marchaudon, O. Marghitu, T. Matsuo, W. J. Miloch, T. Moretto-Jørgensen, D. Mpaloukidis, N. Olsen, K. Papadakis, R. Pfaff, P. Pirnaris, C. Siemes, C. Stolle, J. Suni, J. van den IJssel, P. T. Verronen, P. Visser, M. Yamauchi
Publikováno v:
Annales Geophysicae, Vol 39, Pp 189-237 (2021)
The lower-thermosphere–ionosphere (LTI) system consists of the upper atmosphere and the lower part of the ionosphere and as such comprises a complex system coupled to both the atmosphere below and space above. The atmospheric part of the LTI is dom
Externí odkaz:
https://doaj.org/article/cfe2c3bae6e04b5097c10b6750012a54