Zobrazeno 1 - 10 of 36 pro vyhledávání: '"Brian W. LaFranchi"'
1
Local- and regional-scale racial and ethnic disparities in air pollution determined by long-term mobile monitoring
Autor: Crystal Romeo Upperman, Kyle P. Messier, Allen L. Robinson, Joshua S. Apte, Julian D. Marshall, Carlos P.R. Pinon, Brian W. LaFranchi, Sarah Chambliss, Melissa M. Lunden
Publikováno v: Proceedings of the National Academy of Sciences of the United States of America, vol 118, iss 37
Proceedings of the National Academy of Sciences of the United States of America
Significance It is known, to researchers and heavily impacted communities, that people of color face a higher average burden of air pollution. It was unknown whether racial/ethnic disparities were caused by spatial heterogeneities at the level of cit
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c6255c8995dd6193de7e45005d31c7a
https://escholarship.org/uc/item/2vf2f2jx
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2
Exploring the Potential of Using Carbonyl Sulfide to Track the Urban Biosphere Signal
Autor: Marc Fischer, Ian Baker, Hope A. Michelsen, Philip Cameron-Smith, Gara Villalba, Stephen A. Montzka, Tim W. Hilton, Brian W. LaFranchi, Ray P. Bambha, Andrew Zumkehr, Mary E. Whelan, J. Stinecipher, Carme Estruch, Elliott Campbell
Publikováno v: Journal of Geophysical Research. Atmospheres, Vol. 126, Issue 13 (July 2021), p. e2020JD034106
Dipòsit Digital de Documents de la UAB
Universitat Autònoma de Barcelona
Unidad de excelencia María de Maeztu CEX2019-000940-M Altres ajuts: acords transformatius de la UAB Cities are implementing additional urban green as a means to capture CO and become more carbon neutral. However, cities are complex systems where ant
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::564e5b3a329823dccad603f2aba22f7d
https://doi.org/10.1029/2020jd034106
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3
Estimating methane emissions from biological and fossil‐fuel sources in the San Francisco Bay Area
Autor: Hope A. Michelsen, Brian W. LaFranchi, Marc Fischer, Philip T. Martien, Ben R. Miller, Donald R. Blake, Xinguang Cui, A. Guha, Arlyn E. Andrews, Stephen A. Montzka, Seongeun Jeong, Pierre Glaize, Craig B. Clements, Ray P. Bambha
Publikováno v: Geophysical Research Letters. 44:486-495
Author(s): Jeong, S; Cui, X; Blake, DR; Miller, B; Montzka, SA; Andrews, A; Guha, A; Martien, P; Bambha, RP; LaFranchi, B; Michelsen, HA; Clements, CB; Glaize, P; Fischer, ML | Abstract: We present the first sector-specific analysis of methane (CH4)
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::59c8b62ec2362447e1024fd4e7c2073d
https://doi.org/10.1002/2016gl071794
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4
Strong regional atmospheric C-14 signature of respired CO2 observed from a tall tower over the midwestern United States
Autor: John B. Miller, Arlyn E. Andrews, Xiaomei Xu, Scott J. Lehman, Zhen Liu, Karis J. McFarlane, Jocelyn Turnbull, Brian W. LaFranchi, Thomas P. Guilderson, P. P. Tans, Huilin Chen, Claire L. Phillips
Publikováno v: Journal of geophysical research-Biogeosciences, 121(8), 2275-2295. AMER GEOPHYSICAL UNION
Radiocarbon in CO2 ((CO2)-C-14) measurements can aid in discriminating between fast ( 5-10 years) cycling of C between the atmosphere and the terrestrial biosphere due to the 14C disequilibrium between atmospheric and terrestrial C. However, (CO2)-C-
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a8c33a3097232aef88c55bd55d76077
https://doi.org/10.1002/2015JG003271
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6
Assessing fossil fuel CO2 emissions in California using atmospheric observations and models
Autor: Scott J. Lehman, Timothy J. Lueker, S. J. Walker, Kevin R. Gurney, Heather Graven, Sally Newman, K. Brophy, Xinguang Cui, Ralph F. Keeling, W. Paplawsky, Hope A. Michelsen, Christopher Dale Sloop, W. Callahan, John B. Miller, Nicholas C. Parazoo, Seongeun Jeong, Ray P. Bambha, Thomas P. Guilderson, Marc Fischer, Christian Frankenberg, Brian W. LaFranchi
Publikováno v: Environmental Research Letters, vol 13, iss 6
Analysis systems incorporating atmospheric observations could provide a powerful tool for validating fossil fuel CO_2 (ffCO_2) emissions reported for individual regions, provided that fossil fuel sources can be separated from other CO_2 sources or si
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f33e112d6ac15216741584699e39038
https://escholarship.org/uc/item/2024m44k
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8
Observations of 14 CO 2 in ecosystem respiration from a temperate deciduous forest in Northern Wisconsin
Autor: Claire L. Phillips, Ankur R. Desai, Scott J. Lehman, Karis J. McFarlane, John B. Miller, Brian W. LaFranchi
Publikováno v: Journal of Geophysical Research: Biogeosciences. 120:600-616
The 14CO2 composition of plant and soil respiration can be used to determine the residence time of photosynthetically fixed carbon before it is released back to the atmosphere. To estimate the residence time of actively cycled carbon in a temperate f
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::08a4195c10168c893e0195d06fe0f82f
https://doi.org/10.1002/2014jg002808
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9
Eddy covariance fluxes and vertical concentration gradient measurements of NO and NO2 over a ponderosa pine ecosystem: observational evidence for within-canopy chemical removal of NOx
Autor: Brian W. LaFranchi, Eleanor C. Browne, Sally E. Pusede, Ronald C. Cohen, Kyung-Eun Min
Publikováno v: Atmospheric Chemistry and Physics. 14:5495-5512
Exchange of NOx (NO+NO2) between the atmosphere and biosphere is important for air quality, climate change, and ecosystem nutrient dynamics. There are few direct ecosystem-scale measurements of the direction and rate of atmosphere–biosphere exchang
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3ad8372a66e7fe2344d25256038576fb
https://doi.org/10.5194/acp-14-5495-2014
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10
Constraints on emissions of carbon monoxide, methane, and a suite of hydrocarbons in the Colorado Front Range using observations of 14CO2
Autor: Edward J. Dlugokencky, Daniel E. Wolfe, Colm Sweeney, Ben R. Miller, Scott J. Lehman, Arlyn E. Andrews, Brian W. LaFranchi, Gabrielle Pétron, Stephen A. Montzka, B. D. Hall, William Neff, Kevin R. Gurney, Thomas P. Guilderson, Jocelyn Turnbull, Paul C. Novelli, John B. Miller, Pieter P. Tans
Publikováno v: Atmospheric Chemistry and Physics. 13:11101-11120
Atmospheric radiocarbon (14C) represents an important observational constraint on emissions of fossil-fuel derived carbon into the atmosphere due to the absence of 14C in fossil fuel reservoirs. The high sensitivity and precision that accelerator mas
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::534f0e20b5752d29c20fe084be2b5e6d
https://doi.org/10.5194/acp-13-11101-2013
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