Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Mai Mai Lam"'
Autor:
Mai Mai Lam, Robert Shore, Gareth Chisham, Mervyn Freeman, Adrian Grocott, Maria-Theresia Walach, Lauren Orr
Forecasting of the effects of thermospheric drag on satellites will be improved significantly with more accurate modelling of space weather effects on the high-latitude ionosphere, in particular the Joule heating arising from electric field variabili
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e20073ab18035f4b090ca7a0bd6d2251
https://doi.org/10.5194/egusphere-egu23-2048
https://doi.org/10.5194/egusphere-egu23-2048
Autor:
Lauren Orr, Adrian Grocott, Maria Walach, Mai Mai Lam, Mervyn Freeman, Gareth Chisham, Robert Shore
Modern high latitude ionospheric electric field models have been developed to incorporate advances in data availability, however the use of older spacecraft-based models is still widespread. AENeAS (Advanced Ensemble electron density [Ne] Assimilatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa9012ccfce968b3d65bd5dc717f6b22
https://doi.org/10.5194/egusphere-egu22-8135
https://doi.org/10.5194/egusphere-egu22-8135
Autor:
Caitriona M. Jackman, Mervyn P. Freeman, J. K. Sandhu, Colin Forsyth, N. M. E. Kalmoni, Mai Mai Lam, I. J. Rae
Publikováno v:
Journal of Geophysical Research: Space Physics. 124:2920-2934
We show that a white-light all-sky imager can estimate Pedersen conductance with an uncertainty of 3 mho or 40%. Using a series of case studies over a wide range of geomagnetic activity, we compare estimates of Pedersen conductance from the backscatt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f02f989282314964f138526e5aee26f
https://doi.org/10.1029/2018ja026067
https://doi.org/10.1029/2018ja026067
Autor:
Mai Mai Lam, Mervyn P. Freeman
We use National Centers for Environmental Prediction/National Center for Atmospheric Research reanalysis data to show that Antarctic surface air temperature anomalies result from differences in the daily-mean duskward component, B y , of the interpla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::691cf7cdf638dd3dbc6ebefac0cbf3b0
https://iopscience.iop.org/article/10.1088/2515-7620/ab4a84
https://iopscience.iop.org/article/10.1088/2515-7620/ab4a84
Autor:
Mai Mai Lam, Brian A. Tinsley
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 149:277-290
We review recent research articles that present observations of the large-scale day-to-day dynamic tropospheric response to changes in the downward current density Jz of the global atmospheric electric circuit (GEC). The evidence for the global circu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2781827561428830a81c295dec1e4252
https://doi.org/10.1016/j.jastp.2015.10.019
https://doi.org/10.1016/j.jastp.2015.10.019
We use National Centers for Environmental Prediction (NCEP)/National Center for Atmospheric Research (NCAR) reanalysis data to investigate the Antarctic mean tropospheric temperature anomaly associated with changes in the dawn-dusk component By of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::451cfb94f293f2f80eef8167dc4000be
http://www.sciencedirect.com/science/article/pii/S1364682617304790
http://www.sciencedirect.com/science/article/pii/S1364682617304790
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 71:1145-1156
Coronal holes produce high speed solar wind streams (HSS) that subsequently interact with the slower downstream solar wind forming co-rotating interaction regions (CIRs). The CIR/HSS combination drives geomagnetic storms that have a weak to moderate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8fe1afe489a76284c2eb6c203bdf4a2b
https://doi.org/10.1016/j.jastp.2008.06.007
https://doi.org/10.1016/j.jastp.2008.06.007
Autor:
Mai Mai Lam, Alan S. Rodger
Publikováno v:
Annales Geophysicae, Vol 21, Pp 1095-1100 (2003)
Annales Geophysicae, Vol 21, Iss 5, Pp 1095-1100 (0000)
Annales Geophysicae, Vol 21, Iss 5, Pp 1095-1100 (0000)
We test the proposal that the Sun’s magnetic activity, communicated via the solar wind, provides a link between solar variability and the Earth’s climate in the Antarctic troposphere. The strength of a geomagnetic storm is one indicator of the st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b66bc4ccf1b501de757ed7340f297fe
https://doi.org/10.5194/angeo-21-1095-2003
https://doi.org/10.5194/angeo-21-1095-2003
Autor:
Mai Mai Lam, Alan S. Rodger
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 64:41-45
Egorova et al. (2000) conclude that Forbush decreases (FDs) in galactic cosmic rays have a significant effect on the atmosphere at Antarctic station Vostok (78.5°S, 106.9°E) via the mechanism of electrofreezing. We present the results of a similar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d2a1190f93178cf46a62d098d6b88b5
https://doi.org/10.1016/s1364-6826(01)00092-x
https://doi.org/10.1016/s1364-6826(01)00092-x
Autor:
Mai Mai Lam, Alan S. Rodger
Publikováno v:
Journal of Geophysical Research: Space Physics. 106:13135-13144
This paper tests the Araki [1994] computational model of the Earth-ionosphere system during geomagnetic sudden commencement (sc). In particular, we test the model's ability to predict the signs of the preliminary and main impulses, given the latitude
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9278be4d1d5e8c5eaba973685ed4bb54
https://doi.org/10.1029/2000ja900134
https://doi.org/10.1029/2000ja900134