Zobrazeno 1 - 10
of 32
pro vyhledávání: '"E. C. Browne"'
Publikováno v:
Atmospheric Measurement Techniques, Vol 16, Pp 3273-3282 (2023)
Mass spectrometry is an important analytical technique within the field of atmospheric chemistry. Owing to advances in instrumentation, particularly with regards to mass-resolving power and instrument response factors (sensitivities), hundreds of dif
Externí odkaz:
https://doaj.org/article/71ea6e6fca5341a48da267aa0655c124
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 5567-5585 (2023)
In the lower troposphere, rapid collisions between ions and trace gases result in the transfer of positive charge to the highest proton affinity species and negative charge to the lowest proton affinity species. Measurements of the chemical compositi
Externí odkaz:
https://doaj.org/article/62fd00dcebf1443fa1006f6af13a0aaf
Publikováno v:
Atmospheric Chemistry and Physics, Vol 14, Iss 11, Pp 5495-5512 (2014)
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://doaj.org/article/32ef02ab3a2845a6af7f30d6ce4c8649
Autor:
S. E. Pusede, D. R. Gentner, P. J. Wooldridge, E. C. Browne, A. W. Rollins, K.-E. Min, A. R. Russell, J. Thomas, L. Zhang, W. H. Brune, S. B. Henry, J. P. DiGangi, F. N. Keutsch, S. A. Harrold, J. A. Thornton, M. R. Beaver, J. M. St. Clair, P. O. Wennberg, J. Sanders, X. Ren, T. C. VandenBoer, M. Z. Markovic, A. Guha, R. Weber, A. H. Goldstein, R. C. Cohen
Publikováno v:
Atmospheric Chemistry and Physics, Vol 14, Iss 7, Pp 3373-3395 (2014)
The San Joaquin Valley (SJV) experiences some of the worst ozone air quality in the US, frequently exceeding the California 8 h standard of 70.4 ppb. To improve our understanding of trends in the number of ozone violations in the SJV, we analyze obse
Externí odkaz:
https://doaj.org/article/7bbdc70b6561480a9fd13287e6fe8323
Publikováno v:
Atmospheric Chemistry and Physics, Vol 14, Iss 3, Pp 1225-1238 (2014)
The formation of organic nitrates (RONO2) represents an important NOx (NOx = NO + NO2) sink in the remote and rural continental atmosphere, thus impacting ozone production and secondary organic aerosol (SOA) formation. In these remote and rural envir
Externí odkaz:
https://doaj.org/article/5b103561a6cc49939a0369551bc4ca5a
Autor:
E. C. Browne, K.-E. Min, P. J. Wooldridge, E. Apel, D. R. Blake, W. H. Brune, C. A. Cantrell, M. J. Cubison, G. S. Diskin, J. L. Jimenez, A. J. Weinheimer, P. O. Wennberg, A. Wisthaler, R. C. Cohen
Publikováno v:
Atmospheric Chemistry and Physics, Vol 13, Iss 9, Pp 4543-4562 (2013)
In contrast with the textbook view of remote chemistry where HNO3 formation is the primary sink of nitrogen oxides, recent theoretical analyses show that formation of RONO2 (ΣANs) from isoprene and other terpene precursors is the primary net chemica
Externí odkaz:
https://doaj.org/article/2ad8eb0b74bc4a41970faa079d8f3593
Autor:
E. C. Browne, R. C. Cohen
Publikováno v:
Atmospheric Chemistry and Physics, Vol 12, Iss 24, Pp 11917-11932 (2012)
We present an analysis of the NOx budget in conditions of low NOx (NOx = NO + NO2) and high biogenic volatile organic compound (BVOC) concentrations that are characteristic of most continental boundary layers. Using a steady-state model, we show that
Externí odkaz:
https://doaj.org/article/6df9f1c041c24374a77b4227d370ada0
Autor:
K.-E. Min, S. E. Pusede, E. C. Browne, B. W. LaFranchi, P. J. Wooldridge, G. M. Wolfe, S. A. Harrold, J. A. Thornton, R. C. Cohen
Publikováno v:
Atmospheric Chemistry and Physics, Vol 12, Iss 20, Pp 9763-9773 (2012)
Peroxynitrates are responsible for global scale transport of reactive nitrogen. Recent laboratory observations suggest that they may also play an important role in delivery of nutrients to plant canopies. We measured eddy covariance fluxes of total p
Externí odkaz:
https://doaj.org/article/8eb3693d690a46b280ce394668fc717a
Autor:
X. Ren, J. E. Sanders, A. Rajendran, R. J. Weber, A. H. Goldstein, S. E. Pusede, E. C. Browne, K.-E. Min, R. C. Cohen
Publikováno v:
Atmospheric Measurement Techniques, Vol 4, Iss 10, Pp 2093-2103 (2011)
A relaxed eddy accumulation (REA) system combined with a nitrous acid (HONO) analyzer was developed to measure atmospheric HONO vertical fluxes. The system consists of three major components: (1) a fast-response sonic anemometer measuring both vertic
Externí odkaz:
https://doaj.org/article/213bf70ea5af4b6f9bb8630ce201cfb6
Autor:
R. C. Cohen, E. J. Bucsela, E. C. Browne, P. J. Wooldridge, L. C. Valin, A. R. Russell, A. E. Perring
Publikováno v:
Atmospheric Chemistry and Physics, Vol 11, Iss 16, Pp 8543-8554 (2011)
We present a new retrieval of tropospheric NO2 vertical column density from the Ozone Monitoring Instrument (OMI) based on high spatial and temporal resolution terrain and profile inputs. We compare our NO2 product, the Berkeley High-Resolution (BEHR
Externí odkaz:
https://doaj.org/article/716878caf59c443c8f57e8d75a300be0