Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Francesca M Hopkins"'
Autor:
Talha Rafiq, Riley M Duren, Andrew K Thorpe, Kelsey Foster, Risa Patarsuk, Charles E Miller, Francesca M Hopkins
Publikováno v:
Environmental Research Letters, Vol 15, Iss 12, p 124001 (2020)
Methane (CH _4 ), an important greenhouse gas and pollutant, has been targeted for mitigation. Our recent California airborne survey identified >500 CH _4 point source super-emitters, which accounted for 34%–46% of the statewide CH _4 emissions inv
Externí odkaz:
https://doaj.org/article/34f4792a40db4f0094b0a79a5f7fac3d
Autor:
Andrew K Thorpe, Riley M Duren, Stephen Conley, Kuldeep R Prasad, Brian D Bue, Vineet Yadav, Kelsey T Foster, Talha Rafiq, Francesca M Hopkins, Mackenzie L Smith, Marc L Fischer, David R Thompson, Christian Frankenberg, Ian B McCubbin, Michael L Eastwood, Robert O Green, Charles E Miller
Publikováno v:
Environmental Research Letters, Vol 15, Iss 4, p 045005 (2020)
Accurate and timely detection, quantification, and attribution of methane emissions from Underground Gas Storage (UGS) facilities is essential for improving confidence in greenhouse gas inventories, enabling emission mitigation by facility operators,
Externí odkaz:
https://doaj.org/article/e7d67185b0d844e18b420f8253db0390
Autor:
Isis Frausto-Vicencio, Sajjan Heerah, Aaron G. Meyer, Harrison A. Parker, Manvendra Dubey, Francesca M. Hopkins
With global wildfires becoming more widespread and severe, tracking their emissions of greenhouse gases and air pollutants is becoming increasingly important. Wildfire emissions have primarily been characterized by in situ laboratory and field observ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3fc9763903ca5bbe6eb8a53fbf59809
https://acp.copernicus.org/articles/23/4521/2023/
https://acp.copernicus.org/articles/23/4521/2023/
Publikováno v:
Sensors, Vol 21, Iss 6, p 2095 (2021)
In this study, we test the performance of a compact gas chromatograph with photoionization detector (GC-PID) and optimize the configuration to detect ambient (sub-ppb) levels of benzene, toluene, ethylbenzene, and xylene isomers (BTEX). The GC-PID sy
Externí odkaz:
https://doaj.org/article/7e120dde08af44fd8ca21397e584af54
Autor:
Holly J. Oldroyd, Kerry E. Kelly, Daniel L. Mendoza, John C. Lin, Sebastian W. Hoch, Ian Faloona, Caroline C. Womack, Heather A. Holmes, Randal S. Martin, Kelley C. Barsanti, Jerome D. Fast, A. Gannet Hallar, D. Caulton, Francesca M. Hopkins, John D. Horel, James T. Kelly, William R. Simpson, Derek V. Mallia, Pablo E. Saide, Casey D. Bray, Steven S. Brown, Robert M. Banta, Logan Mitchell, Erik T. Crosman, Jochen Stutz, Ann M. Middlebrook, Cassandra J. Gaston, Viney P. Aneja, Joost A. de Gouw, Stephan F. J. De Wekker, Munkhbayar Baasandorj, Delphine K. Farmer, Neil P. Lareau, Keding Lu, Jennifer G. Murphy, Roy L. Mauldin, Christopher D. Cappa, Yelena L. Pichugina, Nakul N. Karle, Amy P. Sullivan, Britton B. Stephens, Kerri A. Pratt, Roya Bahreini, Philip J. Silva, Alan Brewer
Publikováno v:
Bulletin of the American Meteorological Society, vol 0, iss 10
Bull Am Meteorol Soc
Bull Am Meteorol Soc
Wintertime episodes of high aerosol concentrations occur frequently in urban and agricultural basins and valleys worldwide. These episodes often arise following development of persistent cold-air pools (PCAPs) that limit mixing and modify chemistry.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4b288cc8f5a3de984cf99c338b85c35
https://doi.org/10.1175/bams-d-20-0017.1
https://doi.org/10.1175/bams-d-20-0017.1
Autor:
Isis Frausto-Vicencio, Sajjan Heerah, Aaron G. Meyer, Harrison A. Parker, Manvendra Dubey, Francesca M. Hopkins
With global wildfires becoming more widespread and severe, tracking their emissions of greenhouse gases and air pollutants is becoming increasingly important. Wildfire emissions have primarily been characterized by in situ laboratory, and field obser
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99dd927cbbc9f03d6cac667447e726a6
https://acp.copernicus.org/preprints/acp-2022-671/
https://acp.copernicus.org/preprints/acp-2022-671/
Autor:
Isis Frausto-Vicencio, Francesca M. Hopkins, Alexander L. Frie, Yumeng Cui, Justin H. Dingle, Roya Bahreini, Stephen Zimmerman
Publikováno v:
ACS Earth and Space Chemistry. 5:858-869
Improved understanding of the optical properties of secondary organic aerosol (SOA) particles is needed to better predict their climate impacts. Here, SOA was produced by reacting 1-methylnaphthale...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d2b59c15e3f9829bdaa08e2682af97e
https://doi.org/10.1021/acsearthspacechem.0c00353
https://doi.org/10.1021/acsearthspacechem.0c00353
Autor:
Michelle Carr, Francesca M. Hopkins, Alison Marklein, Marc Fischer, Seongeun Jeong, Deanne Meyer, Talha Rafiq
Publikováno v:
Earth System Science Data, Vol 13, Pp 1151-1166 (2021)
Dairies emit roughly half of total methane (CH4) emissions in California, generating CH4 from both enteric fermentation by ruminant gut microbes and anaerobic decomposition of manure. Representation of these emission processes is essential for manage
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c14f83f25cc668f94e672f36c61ba7d
https://essd.copernicus.org/articles/13/1151/2021/essd-13-1151-2021.pdf
https://essd.copernicus.org/articles/13/1151/2021/essd-13-1151-2021.pdf
Autor:
Seongeun Jeong, Marc L. Fischer, Hanna Breunig, Alison R. Marklein, Francesca M. Hopkins, Sebastien C. Biraud
Publikováno v:
Environmental science & technology, vol 56, iss 8
California's dairy sector accounts for ∼50% of anthropogenic CH4 emissions in the state's greenhouse gas (GHG) emission inventory. Although California dairy facilities' location and herd size vary over time, atmospheric inverse modeling studies rel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6fbccee5003f760be438952cd6039a85
https://escholarship.org/uc/item/5630w0cx
https://escholarship.org/uc/item/5630w0cx