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Akademický článek

Characterizing model errors in chemical transport modeling of methane: using GOSAT XCH4 data with weak-constraint four-dimensional variational data assimilation

Autor: I. Stanevich, D. B. A. Jones, K. Strong, M. Keller, D. K. Henze, R. J. Parker, H. Boesch, D. Wunch, J. Notholt, C. Petri, T. Warneke, R. Sussmann, M. Schneider, F. Hase, R. Kivi, N. M. Deutscher, V. A. Velazco, K. A. Walker, F. Deng

Publikováno v: Atmospheric Chemistry and Physics, Vol 21, Pp 9545-9572 (2021)

We examined biases in the global GEOS-Chem chemical transport model for the period of February–May 2010 using weak-constraint (WC) four-dimensional variational (4D-Var) data assimilation and dry-air mole fractions of CH4 (XCH4) from the Greenhouse

Externí odkaz: https://doaj.org/article/a079af3dca8a47df824412bb0f3b9250

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Optical monitoring of the z=4.40 quasar Q 2203+292

Autor: Andon Kostov, Evgeni Ovcharov, A. Valcheva, Valentin D. Ivanov, N. A. Tikhonov, Ts. B. Georgiev, Petko Nedialkov, I. Stanev

We report Cousins R-band monitoring of the high-redshift (z=4.40) radio quiet quasar Q 2203+292 from May 1999 to October 2007. The quasar shows maximum peak-to-peak light curve amplitude of ~0.3 mag during the time of our monitoring, and ~0.9 mag whe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f14160a5064545c1b096d75d42547cc0
http://arxiv.org/abs/0801.3729

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WEBT and XMM-Newton observations of 3C 454.3 during the post-outburst phase. Detection of the little and big blue bumps

Autor: C. M. Raiteri, M. Villata, V. M. Larionov, T. Pursimo, M. A. Ibrahimov, K. Nilsson, M. F. Aller, O. M. Kurtanidze, L. Foschini, J. Ohlert, I. E. Papadakis, N. Sumitomo, A. Volvach, H. D. Aller, A. A. Arkharov, U. Bach, A. Berdyugin, M. Böttcher, C. S. Buemi, P. Calcidese, P. Charlot, A. J. Delgado Sánchez, A. Di Paola, A. A. Djupvik, M. Dolci, N. V. Efimova, J. H. Fan, E. Forné, C. A. Gomez, A. C. Gupta, V. A. Hagen-Thorn, L. Hooks, T. Hovatta, Y. Ishii, M. Kamada, T. Konstantinova, E. Kopatskaya, Yu. A. Kovalev, Y. Y. Kovalev, A. Lähteenmäki, L. Lanteri, J.-F. Le Campion, C.-U. Lee, P. Leto, H.-C. Lin, E. Lindfors, M. G. Mingaliev, S. Mizoguchi, F. Nicastro, M. G. Nikolashvili, S. Nishiyama, L. Östman, E. Ovcharov, P. Pääkkönen, M. Pasanen, E. Pian, T. Rector, J. A. Ros, K. Sadakane, J. H. Selj, E. Semkov, D. Sharapov, A. Somero, I. Stanev, A. Strigachev, L. Takalo, K. Tanaka, M. Tavani, I. Torniainen, M. Tornikoski, C. Trigilio, G. Umana, S. Vercellone, A. Valcheva, L. Volvach, M. Yamanaka

Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2007, 473 (3), pp.819-827

The blazar 3C 454.3 underwent an unprecedented optical outburst in spring 2005. This was first followed by a mm and then by a cm radio outburst, which peaked in February 2006. We report on follow-up observations by the WEBT to study the multiwaveleng

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c66baac77adf7449d5aad076003cfcad
http://hdl.handle.net/20.500.11769/243585

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Possibilities for restoration of severely destroyed dental crowns with inlays

Autor: S D, Dimitrova, V G, Ginev, J I, Stanev

Publikováno v: Folia medica. 43(1-2)

In everyday dentistry practice cases with diffuse destruction of masticatory teeth are common. In the study presented the possibilities of their restoration with metal or metal-ceramic inlays are reviewed. Twenty-one inlays were fabricated, 16 from m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::96e67ed4eefa88341275a0f4ce4d0e1b
https://pubmed.ncbi.nlm.nih.gov/15354467

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Akademický článek

Characterizing model errors in chemical transport modeling of methane: impact of model resolution in versions v9-02 of GEOS-Chem and v35j of its adjoint model

Autor: I. Stanevich, D. B. A. Jones, K. Strong, R. J. Parker, H. Boesch, D. Wunch, J. Notholt, C. Petri, T. Warneke, R. Sussmann, M. Schneider, F. Hase, R. Kivi, N. M. Deutscher, V. A. Velazco, K. A. Walker, F. Deng

Publikováno v: Geoscientific Model Development, Vol 13, Pp 3839-3862 (2020)

The GEOS-Chem simulation of atmospheric CH4 was evaluated against observations from the Thermal and Near Infrared Sensor for Carbon Observations Fourier Transform Spectrometer (TANSO-FTS) on the Greenhouse Gases Observing Satellite (GOSAT), the Atmos

Externí odkaz: https://doaj.org/article/f4667d95374c4844a4d55764666f855c

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