Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Marc L. Fischer"'
Autor:
Sofia D. Hamilton, Dien Wu, Matthew S. Johnson, Alexander J. Turner, Marc L. Fischer, Nikhil Dadheech, Seongeun Jeong
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 20, Pp n/a-n/a (2024)
Abstract NASA's Orbiting Carbon Observatories (OCO‐2 and OCO‐3) provide measurements of column‐averaged carbon dioxide concentrations (XCO2) with sufficient spatial resolution and precision to constrain bottom‐up estimates of CO2 fluxes at re
Externí odkaz:
https://doaj.org/article/72f6a3356f1b47d69ba5e4ae4a946d6e
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:
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
Autor:
Eric David Lebel, Mary Kang, Lisa Vielstädte, Robert B. Jackson, Marc L Fischer, Peter Banner, Harmony S. Lu
Publikováno v:
Environmental Science & Technology. 54:14617-14626
California hosts ∼124,000 abandoned and plugged (AP) oil and gas wells, ∼38,000 idle wells, and ∼63,000 active wells, whose methane (CH4) emissions remain largely unquantified at levels below ∼2 kg CH4 h–1. We sampled 121 wells using two me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::319a416e9410df9633ce355be8f505c6
https://doi.org/10.1021/acs.est.0c05279
https://doi.org/10.1021/acs.est.0c05279
Autor:
Valerie Carranza, Brenna Biggs, Deanne Meyer, Amy Townsend‐Small, Ranga Rajan Thiruvenkatachari, Akula Venkatram, Marc L. Fischer, Francesca M. Hopkins
Publikováno v:
Journal of Geophysical Research Biogeosciences, vol 127, iss 1
In this study, we present seasonal atmospheric measurements of δ13CCH4 from dairy farms in the San Joaquin Valley of California. We used δ13CCH4 to characterize emissions from enteric fermentation by measuring downwind of cattle housing (e.g., free
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::93f4a2612a08d4d8226da926c7282cdb
https://escholarship.org/uc/item/0pq9p5jk
https://escholarship.org/uc/item/0pq9p5jk
Autor:
Alison R. Marklein, Deanne Meyer, Marc L. Fischer, Seongeun Jeong, Talha Rafiq, Michelle Carr, Francesca M. Hopkins
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___::b343baa4e5eb504b061b44e601c9a2cd
https://essd.copernicus.org/preprints/essd-2020-133/
https://essd.copernicus.org/preprints/essd-2020-133/
Autor:
Francisco Salamanca, Shaheen Tonse, Surabi Menon, Vishal Garg, Krishna P Singh, Manish Naja, Marc L Fischer
Publikováno v:
Environmental Research Letters, Vol 7, Iss 4, p 044007 (2012)
We evaluate differences in clear-sky upwelling shortwave radiation reaching the top of the atmosphere in response to increasing the albedo of roof surfaces in an area of India with moderately high aerosol loading. Treated (painted white) and untreate
Externí odkaz:
https://doaj.org/article/64dc91f74ddd45da8cb57735c0b5b406
Autor:
Xinguang, Cui, Sally, Newman, Xiaomei, Xu, Arlyn E, Andrews, John, Miller, Scott, Lehman, Seongeun, Jeong, Jingsong, Zhang, Chad, Priest, Mixtli, Campos-Pineda, Kevin R, Gurney, Heather, Graven, John, Southon, Marc L, Fischer
Publikováno v:
The Science of the total environment. 664
Combustion of fossil fuel is the dominant source of greenhouse gas emissions to the atmosphere in California. Here, we describe radiocarbon (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::a87b0408a12476bdd3724d35806328bd
https://pubmed.ncbi.nlm.nih.gov/30743131
https://pubmed.ncbi.nlm.nih.gov/30743131
Autor:
Kieran Brophy, Heather Graven, Alistair J. Manning, Emily White, Tim Arnold, Marc L. Fischer, Seongeun Jeong, Xinguang Cui, Matthew Rigby
Atmospheric inverse modelling has become an increasingly useful tool for evaluating emissions of greenhouse gases including methane, nitrous oxide and synthetic gases such as hydrofluorocarbons (HFCs). Atmospheric inversions for emissions of CO2 from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8652a2d0a16e64b63d4ab0d7af544fd0
https://doi.org/10.5194/acp-2018-473
https://doi.org/10.5194/acp-2018-473