Zobrazeno 1 - 10
of 172
pro vyhledávání: '"E. Apel"'
Autor:
B. C. Baier, W. H. Brune, D. O. Miller, D. Blake, R. Long, A. Wisthaler, C. Cantrell, A. Fried, B. Heikes, S. Brown, E. McDuffie, F. Flocke, E. Apel, L. Kaser, A. Weinheimer
Publikováno v:
Atmospheric Chemistry and Physics, Vol 17, Pp 11273-11292 (2017)
Chemical models must correctly calculate the ozone formation rate, P(O3), to accurately predict ozone levels and to test mitigation strategies. However, air quality models can have large uncertainties in P(O3) calculations, which can create uncert
Externí odkaz:
https://doaj.org/article/74c46134c62849a48d3d00ea34c34692
Autor:
K. D. Custard, C. R. Thompson, K. A. Pratt, P B. Shepson, J. Liao, L. G. Huey, J. J. Orlando, A. J. Weinheimer, E. Apel, S. R. Hall, F. Flocke, L. Mauldin, R. S. Hornbrook, D. Pöhler, S. General, J. Zielcke, W. R. Simpson, U. Platt, A. Fried, P. Weibring, B. C. Sive, K. Ullmann, C. Cantrell, D. J. Knapp, D. D. Montzka
Publikováno v:
Atmospheric Chemistry and Physics, Vol 15, Iss 18, Pp 10799-10809 (2015)
Arctic boundary layer nitrogen oxides (NOx = NO2 + NO) are naturally produced in and released from the sunlit snowpack and range between 10 to 100 pptv in the remote background surface layer air. These nitrogen oxides have significant effects on the
Externí odkaz:
https://doaj.org/article/3d9f98ad387847a58d4121e7796f350b
Autor:
X. Tie, F. Geng, A. Guenther, J. Cao, J. Greenberg, R. Zhang, E. Apel, G. Li, A. Weinheimer, J. Chen, C. Cai
Publikováno v:
Atmospheric Chemistry and Physics, Vol 13, Iss 11, Pp 5655-5669 (2013)
The MIRAGE-Shanghai experiment was designed to characterize the factors controlling regional air pollution near a Chinese megacity (Shanghai) and was conducted during September 2009. This paper provides information on the measurements conducted for t
Externí odkaz:
https://doaj.org/article/5532f1a9bb2b4ac4a82c049dbf9a7805
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:
L. Kaser, T. Karl, R. Schnitzhofer, M. Graus, I. S. Herdlinger-Blatt, J. P. DiGangi, B. Sive, A. Turnipseed, R. S. Hornbrook, W. Zheng, F. M. Flocke, A. Guenther, F. N. Keutsch, E. Apel, A. Hansel
Publikováno v:
Atmospheric Chemistry and Physics, Vol 13, Iss 5, Pp 2893-2906 (2013)
Volatile organic compound (VOC) mixing ratios measured by five independent instruments are compared at a forested site dominated by ponderosa pine (Pinus Ponderosa) during the BEACHON-ROCS field study in summer 2010. The instruments included a Proton
Externí odkaz:
https://doaj.org/article/801610075c0443e99903f9722fd6674c
Autor:
S. B. Henry, L. Kaser, F. N. Keutsch, J. P. DiGangi, Y. Nakashima, Y. Kajii, R. Hornbrook, E. Apel, K. Ullmann, A. Turnipseed, J. Greenberg, S. R. Hall, C. Cantrell, A. Guenther, T. Karl, L. Mauldin, G. M. Wolfe, S. Kim, R. Schnitzhofer, M. Graus, A. Hansel, W. Zheng, F. F. Flocke
Publikováno v:
Atmospheric Chemistry and Physics, Vol 13, Iss 4, Pp 2031-2044 (2013)
We present a detailed analysis of OH observations from the BEACHON (Bio-hydro-atmosphere interactions of Energy, Aerosols, Carbon, H2O, Organics and Nitrogen)-ROCS (Rocky Mountain Organic Carbon Study) 2010 field campaign at the Manitou Forest Observ
Externí odkaz:
https://doaj.org/article/7a990f314daf40538fe8512cf128ec4d
Autor:
J. R. Olson, J. H. Crawford, W. Brune, J. Mao, X. Ren, A. Fried, B. Anderson, E. Apel, M. Beaver, D. Blake, G. Chen, J. Crounse, J. Dibb, G. Diskin, S. R. Hall, L. G. Huey, D. Knapp, D. Richter, D. Riemer, J. St. Clair, K. Ullmann, J. Walega, P. Weibring, A. Weinheimer, P. Wennberg, A. Wisthaler
Publikováno v:
Atmospheric Chemistry and Physics, Vol 12, Iss 15, Pp 6799-6825 (2012)
Observations of chemical constituents and meteorological quantities obtained during the two Arctic phases of the airborne campaign ARCTAS (Arctic Research of the Composition of the Troposphere from Aircraft and Satellites) are analyzed using an obser
Externí odkaz:
https://doaj.org/article/2ea21a10d95342fb967e4a18ea3a4b5c
Autor:
R. Dupont, B. Pierce, J. Worden, J. Hair, M. Fenn, P. Hamer, M. Natarajan, T. Schaack, A. Lenzen, E. Apel, J. Dibb, G. Diskin, G. Huey, A. Weinheimer, Y. Kondo, D. Knapp
Publikováno v:
Atmospheric Chemistry and Physics, Vol 12, Iss 1, Pp 169-188 (2012)
We use ozone and carbon monoxide measurements from the Tropospheric Emission Spectrometer (TES), model estimates of Ozone, CO, and ozone pre-cursors from the Real-time Air Quality Modeling System (RAQMS), and data from the NASA DC8 aircraft to charac
Externí odkaz:
https://doaj.org/article/5932c2d5d44f457e91046e483c212710
Autor:
J. Lee-Taylor, S. Madronich, B. Aumont, A. Baker, M. Camredon, A. Hodzic, G. S. Tyndall, E. Apel, R. A. Zaveri
Publikováno v:
Atmospheric Chemistry and Physics, Vol 11, Iss 24, Pp 13219-13241 (2011)
The evolution of organic aerosols (OA) in Mexico City and its outflow is investigated with the nearly explicit gas phase photochemistry model GECKO-A (Generator of Explicit Chemistry and Kinetics of Organics in the Atmosphere), wherein precursor hydr
Externí odkaz:
https://doaj.org/article/ddd79a3569ab4ea6b339a99b10e05123
Autor:
Q. Liang, J. M. Rodriguez, A. R. Douglass, J. H. Crawford, J. R. Olson, E. Apel, H. Bian, D. R. Blake, W. Brune, M. Chin, P. R. Colarco, A. da Silva, G. S. Diskin, B. N. Duncan, L. G. Huey, D. J. Knapp, D. D. Montzka, J. E. Nielsen, S. Pawson, D. D. Riemer, A. J. Weinheimer, A. Wisthaler
Publikováno v:
Atmospheric Chemistry and Physics, Vol 11, Iss 24, Pp 13181-13199 (2011)
We use aircraft observations obtained during the Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) mission to examine the distributions and source attributions of O3 and NOy in the Arctic and sub-Arctic regio
Externí odkaz:
https://doaj.org/article/53168c3274cb464c9322614635cc7e37