Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Karen Cady‐Pereira"'
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 11, Iss 9, Pp 2934-2957 (2019)
Abstract Ammonia surface flux is bidirectional; that is, net flux can be either upward or downward. In fertilized agricultural croplands and grasslands there is usually more emission than deposition especially in midday during warmer seasons. In Nort
Externí odkaz:
https://doaj.org/article/c62788014b074c1591e034289443d112
Autor:
Changsub Shim, Jihyun Han, Daven K. Henze, Mark W. Shephard, Liye Zhu, Nankyoung Moon, Shailesh K. Kharol, Enrico Dammers, Karen Cady-Pereira
Publikováno v:
Atmosphere, Vol 13, Iss 8, p 1227 (2022)
We analyzed the multi-year relationship between particulate matter (PM10 and PM2.5) concentrations and possible precursors including NO2, SO2, and NH3 based on local observations over the Seoul Metropolitan Area (SMA) from 2015 to 2017. Surface NH3 c
Externí odkaz:
https://doaj.org/article/60cf5cc875eb4f81bd7db5693e8bd52b
Autor:
Christopher A Beale, Fabien Paulot, Cynthia A Randles, Rui Wang, Xuehui Guo, Lieven Clarisse, Martin Van Damme, Pierre-François Coheur, Cathy Clerbaux, Mark W Shephard, Enrico Dammers, Karen Cady-Pereira, Mark A Zondlo
Publikováno v:
Environmental Research Letters, Vol 17, Iss 10, p 104006 (2022)
Ammonia (NH _3 ) is a key precursor of haze particles and fine particulate matter (PM _2.5 ) and its spatiotemporal variabilities are poorly constrained. In this study, we present measurements of NH _3 over the Indian subcontinent region from the Inf
Externí odkaz:
https://doaj.org/article/6b1ec13229824c1dbd96704ac5cf7d11
Autor:
Hansen Cao, Daven K Henze, Mark W Shephard, Enrico Dammers, Karen Cady-Pereira, Matthew Alvarado, Chantelle Lonsdale, Gan Luo, Fangqun Yu, Liye Zhu, Camille G Danielson, Eric S Edgerton
Publikováno v:
Environmental Research Letters, Vol 15, Iss 10, p 104082 (2020)
Spatiotemporal uncertainty in $\mathrm{NH_{3}}$ emissions in the US hinders prediction of environmental effects of atmospheric $\mathrm{NH_3}$ . We conducted 4D-Var inversions using CrIS remote-sensing observations and GEOS-Chem to estimate monthly $
Externí odkaz:
https://doaj.org/article/624310d503dc4dc18103bb5ae13b2986
TROPESS/CrIS carbon monoxide profile validation with NOAA GML and ATom in situ aircraft observations
Autor:
Helen M. Worden, Gene L. Francis, Susan S. Kulawik, Kevin W. Bowman, Karen Cady-Pereira, Dejian Fu, Jennifer D. Hegarty, Valentin Kantchev, Ming Luo, Vivienne H. Payne, John R. Worden, Róisín Commane, Kathryn McKain
Publikováno v:
Atmospheric Measurement Techniques. 15:5383-5398
The new single-pixel TROPESS (TRopospheric Ozone and its Precursors from Earth System Sounding) profile retrievals of carbon monoxide (CO) from the Cross-track Infrared Sounder (CrIS) are evaluated using vertical profiles of in situ observations from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::215b8955e76e8cd3ab111fb75abeb33d
https://doi.org/10.5194/amt-15-5383-2022
https://doi.org/10.5194/amt-15-5383-2022
Autor:
Hansen Cao, Muhammad O. Nawaz, Colin Harkins, Tzung-May Fu, Karen Cady-Pereira, Brian C. McDonald, Kang Sun, Daven K. Henze, Kevin W. Bowman
Publikováno v:
Environmental Science & Technology Letters. 9:3-9
In situ measurements have suggested vehicle emissions may dominate agricultural sources of NH3 in many cities, which is alarming given the potential for urban NH3 to significantly increase human ex...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6667d11f3e31e0f18c8cf8f176a4095a
https://doi.org/10.1021/acs.estlett.1c00730
https://doi.org/10.1021/acs.estlett.1c00730
Autor:
John Worden, Colm Sweeney, Susan S. Kulawik, Igor Polonsky, Bruce C. Daube, Alan E. Lipton, Dejian Fu, Steven C. Wofsy, Yuguang He, Daniel J. Jacob, Vivienne H. Payne, Kathryn McKain, Karen Cady-Pereira, Edward J. Dlugokencky, Yi Yin
Publikováno v:
Atmospheric Measurement Techniques. 14:335-354
We evaluate the uncertainties of methane optimal estimation retrievals from single-footprint thermal infrared observations from the Atmospheric Infrared Sounder (AIRS). These retrievals are primarily sensitive to atmospheric methane in the mid-tropos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c486898ed9c9415354c1f6cb69e671c3
https://doi.org/10.5194/amt-14-335-2021
https://doi.org/10.5194/amt-14-335-2021
Autor:
Enrico Dammers, Mark Shephard, Debora Griffin, Evan Chow, Evan White, Jonathan Hickman, Janot Tokaya, Erik Lutsch, Shailesh Kharol, Shelley van der Graaf, Karen Cady-Pereira, Shabtai Bittman, Chris McLinden, Jan Willem Erisman, Martijn Schaap
Ammonia is a form of reactive nitrogen whose emissions are primarily from livestock excreta and crop fertilisation. Atmospheric ammonia is a major source of anthropogenic aerosols, and can negatively impact both human and ecosystem health. Despite it
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3ca32aa020118c67993154aca697206
https://doi.org/10.21203/rs.3.rs-1752718/v1
https://doi.org/10.21203/rs.3.rs-1752718/v1
Autor:
Helen M. Worden, Gene L. Francis, Susan S. Kulawik, Kevin W. Bowman, Karen Cady-Pereira, Dejian Fu, Jennifer D. Hegarty, Valentin Kantchev, Ming Luo, Vivienne H. Payne, John R. Worden, Róisín Commane, Kathryn McKain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2e11780666d009b1a80c7bdb1ba6b74
https://doi.org/10.5194/amt-2022-128-supplement
https://doi.org/10.5194/amt-2022-128-supplement