Zobrazeno 1 - 10
of 284
pro vyhledávání: '"D. A. Jacob"'
Autor:
D. E. Jacob, A. Fung
Publikováno v:
Geoscience Data Journal, Vol 11, Iss 4, Pp 825-832 (2024)
Abstract This article describes a novel dataset on non‐diamondiferous eclogite and garnet pyroxenite xenoliths from four kimberlite pipes of the Ekati Diamond Mine (Central Slave Craton, Canada). Xenoliths brought to the surface by kimberlite erupt
Externí odkaz:
https://doaj.org/article/0763d59cbffd460da9cbeb9cb3e9b103
Autor:
Y. J. Oak, D. J. Jacob, N. Balasus, L. H. Yang, H. Chong, J. Park, H. Lee, G. T. Lee, E. S. Ha, R. J. Park, H.-A. Kwon, J. Kim
Publikováno v:
Atmospheric Measurement Techniques, Vol 17, Pp 5147-5159 (2024)
The Geostationary Environment Monitoring Spectrometer (GEMS) launched in February 2020 is now providing continuous daytime hourly observations of nitrogen dioxide (NO2) columns over eastern Asia (5° S–45° N, 75–145° E) with 3.5 × 7.7 km2 pixe
Externí odkaz:
https://doaj.org/article/91a0936e98f04c15b001880ebe9ffa7c
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:
L. H. Yang, D. J. Jacob, R. Dang, Y. J. Oak, H. Lin, J. Kim, S. Zhai, N. K. Colombi, D. C. Pendergrass, E. Beaudry, V. Shah, X. Feng, R. M. Yantosca, H. Chong, J. Park, H. Lee, W.-J. Lee, S. Kim, E. Kim, K. R. Travis, J. H. Crawford, H. Liao
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 7027-7039 (2024)
Nitrogen oxide radicals (NOx≡NO+NO2) emitted by fuel combustion are important precursors of ozone and particulate matter pollution, and NO2 itself is harmful to public health. The Geostationary Environment Monitoring Spectrometer (GEMS), launched i
Externí odkaz:
https://doaj.org/article/9c1c8982c1c147dbbebbedd70bf09f8e
Publikováno v:
Atmospheric Measurement Techniques, Vol 17, Pp 2625-2636 (2024)
Current methods for detecting atmospheric plumes and inferring point-source rates from high-resolution satellite imagery are labor-intensive and not scalable with regard to the growing satellite dataset available for methane point sources. Here, we p
Externí odkaz:
https://doaj.org/article/080289bbbc4f47ce8e8f1ebbf3c47661
Autor:
H. Nesser, D. J. Jacob, J. D. Maasakkers, A. Lorente, Z. Chen, X. Lu, L. Shen, Z. Qu, M. P. Sulprizio, M. Winter, S. Ma, A. A. Bloom, J. R. Worden, R. N. Stavins, C. A. Randles
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 5069-5091 (2024)
We quantify 2019 annual mean methane emissions in the contiguous US (CONUS) at 0.25° × 0.3125° resolution by inverse analysis of atmospheric methane columns measured by the Tropospheric Monitoring Instrument (TROPOMI). A gridded version of the US
Externí odkaz:
https://doaj.org/article/b85ba821164245e89563a72696c0e0fb
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:
Geoscientific Model Development, Vol 17, Pp 1511-1524 (2024)
We updated the chemical mechanism of the GEOS-Chem global 3-D model of atmospheric chemistry to include new recommendations from the NASA Jet Propulsion Laboratory (JPL) chemical kinetics Data Evaluation 19-5 and from the International Union of Pure
Externí odkaz:
https://doaj.org/article/b6406967ba17403987cc2424a7c8e9d4
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 8, Pp n/a-n/a (2024)
Abstract Diagnosing land‐atmosphere fluxes of carbon‐dioxide (CO2) and methane (CH4) is essential for evaluating carbon‐climate feedbacks. Greenhouse gas satellite missions aim to fill data gaps in regions like the humid tropics but obtain very
Externí odkaz:
https://doaj.org/article/aa06806a81fa4b30b26235d79abc07e8
Autor:
D. C. Pendergrass, D. J. Jacob, H. Nesser, D. J. Varon, M. Sulprizio, K. Miyazaki, K. W. Bowman
Publikováno v:
Geoscientific Model Development, Vol 16, Pp 4793-4810 (2023)
We present a versatile, powerful, and user-friendly chemical data assimilation toolkit for simultaneously optimizing emissions and concentrations of chemical species based on atmospheric observations from satellites or suborbital platforms. The CHemi
Externí odkaz:
https://doaj.org/article/584311172166456ebbb396cc05a850c6