Zobrazeno 1 - 10
of 175
pro vyhledávání: '"T A, Fritz"'
Autor:
H. Lin, L. K. Emmons, E. W. Lundgren, L. H. Yang, X. Feng, R. Dang, S. Zhai, Y. Tang, M. M. Kelp, N. K. Colombi, S. D. Eastham, T. M. Fritz, D. J. Jacob
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 8607-8624 (2024)
Tropospheric ozone is a major air pollutant and greenhouse gas. It is also the primary precursor of OH, the main tropospheric oxidant. Global atmospheric chemistry models show large differences in their simulations of tropospheric ozone budgets. Here
Externí odkaz:
https://doaj.org/article/712cd78ebcad42cf96a097d637349c22
Autor:
R. Dang, D. J. Jacob, V. Shah, S. D. Eastham, T. M. Fritz, L. J. Mickley, T. Liu, Y. Wang, J. Wang
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 6271-6284 (2023)
Tropospheric nitrogen dioxide (NO2) measured from satellites has been widely used to track anthropogenic NOx emissions, but its retrieval and interpretation can be complicated by the free tropospheric NO2 background to which satellite measurements ar
Externí odkaz:
https://doaj.org/article/0784c2fa9c1942c4a59ae39168a2be61
Autor:
V. Shah, D. J. Jacob, R. Dang, L. N. Lamsal, S. A. Strode, S. D. Steenrod, K. F. Boersma, S. D. Eastham, T. M. Fritz, C. Thompson, J. Peischl, I. Bourgeois, I. B. Pollack, B. A. Nault, R. C. Cohen, P. Campuzano-Jost, J. L. Jimenez, S. T. Andersen, L. J. Carpenter, T. Sherwen, M. J. Evans
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 1227-1257 (2023)
Satellite-based retrievals of tropospheric NO2 columns are widely used to infer NOx (≡ NO + NO2) emissions. These retrievals rely on model information for the vertical distribution of NO2. The free tropospheric background above 2 km is particularly
Externí odkaz:
https://doaj.org/article/5437956e29114505a9448b1abc87fa0e
Autor:
T. M. Fritz, S. D. Eastham, L. K. Emmons, H. Lin, E. W. Lundgren, S. Goldhaber, S. R. H. Barrett, D. J. Jacob
Publikováno v:
Geoscientific Model Development, Vol 15, Pp 8669-8704 (2022)
We implement the GEOS-Chem chemistry module as a chemical mechanism in version 2 of the Community Earth System Model (CESM). Our implementation allows the state-of-the-science GEOS-Chem chemistry module to be used with identical emissions, meteorolog
Externí odkaz:
https://doaj.org/article/e7a73a11de6e448ebe8735c06c94015a
Autor:
H. Lin, D. J. Jacob, E. W. Lundgren, M. P. Sulprizio, C. A. Keller, T. M. Fritz, S. D. Eastham, L. K. Emmons, P. C. Campbell, B. Baker, R. D. Saylor, R. Montuoro
Publikováno v:
Geoscientific Model Development, Vol 14, Pp 5487-5506 (2021)
Emissions are a central component of atmospheric chemistry models. The Harmonized Emissions Component (HEMCO) is a software component for computing emissions from a user-selected ensemble of emission inventories and algorithms. It allows users to re-
Externí odkaz:
https://doaj.org/article/2a6a3364118e41e3bfb01c7be57c8f64
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 5697-5727 (2020)
Emissions from aircraft engines contribute to atmospheric NOx, driving changes in both the climate and in surface air quality. Existing atmospheric models typically assume instant dilution of emissions into large-scale grid cells, neglecting non-line
Externí odkaz:
https://doaj.org/article/e710184f429b4085b6793376252f4413
Autor:
A. V. Russo Cabrera, Carme Gallart, M. Luis Aznar, Matteo Monelli, T. K. Fritz, Giuseppina Battaglia, T. Ruiz-Lara, Santi Cassisi, Inmaculada Rodríguez-Martín, Juan-José Salazar-González
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 501(3), 3962-3980. Oxford University Press
Leo I is considered one of the youngest dwarf spheroidals (dSph) in the Local Group. Its isolation, extended star formation history (SFH), and recent perigalacticon passage (~1 Gyr ago) make Leo~I one of the most interesting nearby stellar systems. H
Autor:
M. M. Klida, T. A. Fritz
Publikováno v:
Annales Geophysicae, Vol 31, Pp 305-314 (2013)
The Imaging Electron Spectrometer (IES) on the Polar satellite has measured the average characteristics of the equatorial electron pitch angle distributions (PADs) in the midnight sector as a function of radial distance out to the 9 RE apogee of t
Externí odkaz:
https://doaj.org/article/7e3ac4368a8744a8a89d6bfaea7722fb
Publikováno v:
arXiv.org e-Print Archive
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society
We use Gaia DR2 systemic proper motions of 45 satellite galaxies to constrain the mass of the Milky Way using the scale free mass estimator of Watkins et al. (2010). We first determine the anisotropy parameter $\beta$, and the tracer satellites' radi
Publikováno v:
Annales Geophysicae, Vol 30, Pp 1003-1013 (2012)
A case study is presented to determine the source of the energetic electron layer frequently observed along the high-latitude magnetopause. Measurements by the Cluster spacecraft show bursts of field-aligned electrons occurring during time periods
Externí odkaz:
https://doaj.org/article/c000e3325a39440bb8347d368f3e2a5f