Zobrazeno 1 - 10
of 235
pro vyhledávání: '"D. Eastham"'
Publikováno v:
Atmospheric Measurement Techniques, Vol 17, Pp 6145-6162 (2024)
The climate impact of persistent aircraft contrails is currently estimated to be comparable to that due to aviation-emitted CO2. A potential near-term and low-cost mitigation option is contrail avoidance, which involves rerouting aircraft around ice-
Externí odkaz:
https://doaj.org/article/e009028e572446c184f2ab29d3e63a98
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
Publikováno v:
Geoscientific Model Development, Vol 17, Pp 5689-5703 (2024)
Atmospheric sensitivities (gradients), quantifying the atmospheric response to emissions or other perturbations, can provide meaningful insights on the underlying atmospheric chemistry or transport processes. Atmospheric adjoint modeling enables the
Externí odkaz:
https://doaj.org/article/c0a3248c0a0b4c0ebc3433a9ed313233
Autor:
Betty Croft, Randall V. Martin, Rachel Y.‐W. Chang, Liam Bindle, Sebastian D. Eastham, Lucas A. Estrada, Bonne Ford, Chi Li, Michael S. Long, Elizabeth W. Lundgren, Saptarshi Sinha, Melissa P. Sulprizio, Yidan Tang, Aaron vanDonkelaar, Robert M. Yantosca, Dandan Zhang, Haihui Zhu, Jeffrey R. Pierce
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 16, Iss 10, Pp n/a-n/a (2024)
Abstract Global modeling of aerosol‐particle number and size is important for understanding aerosol effects on Earth's climate and air quality. Fine‐resolution global models are desirable for representing nonlinear aerosol‐microphysical process
Externí odkaz:
https://doaj.org/article/31f7885527624390adab7b753b585ae2
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 2687-2703 (2024)
Aviation emissions cause global changes in air quality which have been estimated to result in ∼ 58 000 premature mortalities per year, but this number varies by an order of magnitude between studies. The causes of this uncertainty include differenc
Externí odkaz:
https://doaj.org/article/f3c1d96048ea4bc6876ae3f346d77ce9
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-11 (2023)
Abstract Climate policies that target greenhouse gas emissions can improve air quality by reducing co-emitted air pollutant emissions. However, the extent to which climate policy could contribute to the targets of reducing existing pollution disparit
Externí odkaz:
https://doaj.org/article/c1cc1259be14444a830608c40d22070f
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:
Jonathan M. Moch, Loretta J. Mickley, Sebastian D. Eastham, Elizabeth W. Lundgren, Viral Shah, Jonathan J. Buonocore, Jacky Y. S. Pang, Mehliyar Sadiq, Amos P. K. Tai
Publikováno v:
AGU Advances, Vol 4, Iss 5, Pp n/a-n/a (2023)
Abstract Studies of the impacts of solar geoengineering have mostly ignored tropospheric chemistry. By decreasing the sunlight reaching Earth's surface, geoengineering may help mitigate anthropogenic climate change, but changing sunlight also alters
Externí odkaz:
https://doaj.org/article/bbc6c6227d784fc680073b73b6f8026e
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:
R. V. Martin, S. D. Eastham, L. Bindle, E. W. Lundgren, T. L. Clune, C. A. Keller, W. Downs, D. Zhang, R. A. Lucchesi, M. P. Sulprizio, R. M. Yantosca, Y. Li, L. Estrada, W. M. Putman, B. M. Auer, A. L. Trayanov, S. Pawson, D. J. Jacob
Publikováno v:
Geoscientific Model Development, Vol 15, Pp 8731-8748 (2022)
We describe a new generation of the high-performance GEOS-Chem (GCHP) global model of atmospheric composition developed as part of the GEOS-Chem version 13 series. GEOS-Chem is an open-source grid-independent model that can be used online within a me
Externí odkaz:
https://doaj.org/article/ca13a85666b94a268146e2adab775db1