Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Boris Khattatov"'
Publikováno v:
Advances in Space Research. 56:1854-1862
The impact of atmospheric tides on the night time ionosphere is now being a subject of the extensive research within the scientific community. The plausible effect has been observed using the multiple space-borne instruments (e.g. COSMIC/FORMOSAT-3 c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1fc070e571c358c43a3ebab1bb59bf40
https://doi.org/10.1016/j.asr.2015.07.014
https://doi.org/10.1016/j.asr.2015.07.014
Publikováno v:
Geomagnetism and Aeronomy. 53:73-84
We consider a three-dimensional assimilation model of the ionosphere. We discuss the governing equations of the physical model and the data assimilation technique. We provide examples of the model results: plots of the calculated ionospheric paramete
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38ef8154f9666d10477887be873df599
https://doi.org/10.1134/s0016793212060114
https://doi.org/10.1134/s0016793212060114
Autor:
Yakov Cherniak, Knut Stanley Jacobsen, Boris Khattatov, Vyacheslav Khattatov, Dmitry Solomentsev, Anton Titov
Publikováno v:
Journal of Geophysical Research: Space Physics. 119
Severe geomagnetic storms have a strong impact on space communication and satellite navigation systems. Forecasting the appearance of geomagnetically induced disturbances in the ionosphere is one of the urgent goals of the space weather community. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f46eec4ca9af441c86ab5eb162a72ea4
https://doi.org/10.1002/2014ja020248
https://doi.org/10.1002/2014ja020248
Autor:
B. Cruickshank, Tim Fuller-Rowell, Valery Yudin, J. Sheffel, John M. Retterer, M. Murphy, J. Adams, Boris Khattatov, M. Gnedin
Publikováno v:
Quarterly Journal of the Royal Meteorological Society. 131:3543-3559
We present the rationale for having accurate nowcast and forecast ionospheric conditions, and a brief overview of recent work on assimilation of ionospheric measurements in physics-based models. This manuscript describes the results of a project aime
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84edcb5447ce7a019edf9eba61931126
https://doi.org/10.1256/qj.05.96
https://doi.org/10.1256/qj.05.96
Publikováno v:
Geophysical Research Letters. 28:2377-2380
Several research groups recently demonstrated [e.g., Fisher and Lary, 1995; Elbern et al., 1997; Khattatov et al., 1999] that concentrations of some non-observed chemical species can be constrained to a certain extent by the observed ones through our
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e27364e530a3e6d9869d47c98046d850
https://doi.org/10.1029/2000gl012285
https://doi.org/10.1029/2000gl012285
Autor:
P. J. Rasch, Jean-Francois Lamarque, William D. Collins, Brian E. Eaton, Boris Khattatov, Charles S. Zender
Publikováno v:
Collins, WD; Rasch, PJ; Eaton, BE; Khattatov, BV; Lamarque, JF; & Zender, CS. (2001). Simulating aerosols using a chemical transport model with assimilation of satellite aerosol retrievals: Methodology for INDOEX. Journal of Geophysical Research Atmospheres, 106(D7), 7313-7336. doi: 10.1029/2000JD900507. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/9q87h6h9
A system for simulating aerosols has been developed using a chemical transport model together with an assimilation of satellite aerosol retrievals. The methodology and model components are described in this paper, and the modeled distribution of aero
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::222efa41d816dcb69781b4d6717c248d
https://doi.org/10.1029/2000jd900507
https://doi.org/10.1029/2000jd900507
Publikováno v:
Journal of Geophysical Research: Atmospheres. 104:26209-26218
Observations of carbon monoxide (CO) by the Measurement of Air Pollution from Space (MAPS) instrument onboard the space shuttle were assimilated into a global three-dimensional chemistry-transport model using the Physical-space Statistical Analysis S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1b862a7d7bc41641ef0037bf29b9076
https://doi.org/10.1029/1999jd900807
https://doi.org/10.1029/1999jd900807
Autor:
Boris Khattatov, Aidan E. Roche, Guy Brasseur, Lawrence V. Lyjak, Joe W. Waters, Victor L. Dvortsov, John C. Gille
Publikováno v:
Journal of Geophysical Research: Atmospheres. 104:18715-18737
We present a short overview of applications of estimation theory in atmospheric chemistry and discuss some common methods of gridding and mapping of irregular satellite observations of chemical constituents. It is shown that these methods are unable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d501f4dab6b0e087e88065ad0ef34ccb
https://doi.org/10.1029/1999jd900225
https://doi.org/10.1029/1999jd900225
Publikováno v:
Geophysical Research Letters. 25:4493-4496
A method for assimilating observations of ozone was implemented in the three-dimensional global stratospheric chemistry transport model ROSE. The model contains an extensive photochemical scheme which includes heterogeneous chemistry and uses tempera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f7b30e7547f182f5c533126e8a8a1d9
https://doi.org/10.1029/1998gl900152
https://doi.org/10.1029/1998gl900152
Autor:
David A. Ortland, Marvin A. Geller, Boris Khattatov, Gordon G. Shepherd, V. A. Yudin, Charles McLandress, M. D. Burrage
Publikováno v:
Geophysical Research Letters. 25:221-224
This paper presents combined model-data interpretation of the High Resolution Doppler Imager (HRDI) and Wind Imaging Interferometer (WINDII) wind, temperature and airglow data using the tuned mechanistic tidal model (TMTM) approach, including calcula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da6a0c773d462d2a46fd46bd4cd93505
https://doi.org/10.1029/97gl03584
https://doi.org/10.1029/97gl03584