Zobrazeno 1 - 10
of 49
pro vyhledávání: '"R. P. RYAN"'
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 13047-13064 (2024)
Routine observations of the vertical distribution of tropospheric nitrogen oxides (NOx ≡ NO + NO2) are severely lacking, despite the large influence of NOx on climate, air quality, and atmospheric oxidants. Here, we derive vertical profiles of glob
Externí odkaz:
https://doaj.org/article/2cc3bdf569b04f3ca3d26f0b3d1e0cb0
Autor:
R. A. Ryan, M. A. Vaughan, S. D. Rodier, J. L. Tackett, J. A. Reagan, R. A. Ferrare, J. W. Hair, J. A. Smith, B. J. Getzewich
Publikováno v:
Atmospheric Measurement Techniques, Vol 17, Pp 6517-6545 (2024)
This paper introduces the Ocean Derived Column Optical Depth (ODCOD) algorithm. ODCOD is now being used to retrieve full-column optical depths from the 532 nm measurements acquired by the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) aboa
Externí odkaz:
https://doaj.org/article/f2f3a18e3e2f4f1ab207ed9d86f41e6b
Autor:
R. G. Ryan, E. A. Marais, E. Gershenson-Smith, R. Ramsay, J.-P. Muller, J.-L. Tirpitz, U. Frieß
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 7121-7139 (2023)
Heatwaves are a substantial health threat in the UK, exacerbated by co-occurrence of ozone pollution episodes. Here we report on the first use of retrieved vertical profiles of nitrogen dioxide (NO2) and formaldehyde (HCHO) over Central London from a
Externí odkaz:
https://doaj.org/article/aeccd5c12aae42d780cd75e07749466c
Autor:
J. D. R. Pierel, B. L. Frye, M. Pascale, G. B. Caminha, W. Chen, S. Dhawan, D. Gilman, M. Grayling, S. Huber, P. Kelly, S. Thorp, N. Arendse, S. Birrer, M. Bronikowski, R. Cañameras, D. Coe, S. H. Cohen, C. J. Conselice, S. P. Driver, J. C. J. DŚilva, M. Engesser, N. Foo, C. Gall, N. Garuda, C. Grillo, N. A. Grogin, J. Henderson, J. Hjorth, R. A. Jansen, J. Johansson, P. S. Kamieneski, A. M. Koekemoer, C. Larison, M. A. Marshall, L. A. Moustakas, M. Nonino, R. Ortiz III, T. Petrushevska, N. Pirzkal, A. Robotham, R. E. Ryan Jr., S. Schuldt, L. G. Strolger, J. Summers, S. H. Suyu, T. Treu, C. N. A. Willmer, R. A. Windhorst, H. Yan, A. Zitrin, A. Acebron, S. Chakrabarti, D. A. Coulter, O. D. Fox, X. Huang, S. W. Jha, G. Li, P. A. Mazzali, A. K. Meena, I. Pérez-Fournon, F. Poidevin, A. Rest, A. G. Riess
Publikováno v:
The Astrophysical Journal, Vol 967, Iss 1, p 50 (2024)
Supernova (SN) SN H0pe is a gravitationally lensed, triply imaged, Type Ia SN (SN Ia) discovered in James Webb Space Telescope imaging of the PLCK G165.7+67.0 cluster of galaxies. Well-observed multiply imaged SNe provide a rare opportunity to constr
Externí odkaz:
https://doaj.org/article/5060013de8ee41a58fc63301fe908ece
Autor:
Rosalia O’Brien, Rolf A. Jansen, Norman A. Grogin, Seth H. Cohen, Brent M. Smith, Ross M. Silver, W. P. Maksym III, Rogier A. Windhorst, Timothy Carleton, Anton M. Koekemoer, Nimish P. Hathi, Christopher N. A. Willmer, Brenda L. Frye, M. Alpaslan, M. L. N. Ashby, T. A. Ashcraft, S. Bonoli, W. Brisken, N. Cappelluti, F. Civano, C. J. Conselice, V. S. Dhillon, S. P. Driver, K. J. Duncan, R. Dupke, M. Elvis, G. G. Fazio, S. L. Finkelstein, H. B. Gim, A. Griffiths, H. B. Hammel, M. Hyun, M. Im, V. R. Jones, D. Kim, B. Ladjelate, R. L. Larson, S. Malhotra, M. A. Marshall, S. N. Milam, J. D. R. Pierel, J. E. Rhoads, S. A. Rodney, H. J. A. Röttgering, M. J. Rutkowski, R. E. Ryan Jr., M. J. Ward, C. W. White, R. J. van Weeren, X. Zhao, J. Summers, J. C. J. D’Silva, R. Ortiz III, A. S. G. Robotham, D. Coe, M. Nonino, N. Pirzkal, H. Yan, T. Acharya
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 272, Iss 1, p 19 (2024)
The James Webb Space Telescope (JWST) North Ecliptic Pole (NEP) Time-domain Field (TDF) is a >14′ diameter field optimized for multiwavelength time-domain science with JWST. It has been observed across the electromagnetic spectrum both from the gro
Externí odkaz:
https://doaj.org/article/46f5fdcf37b540c59912ef37fd485785
Autor:
I. De Smedt, G. Pinardi, C. Vigouroux, S. Compernolle, A. Bais, N. Benavent, F. Boersma, K.-L. Chan, S. Donner, K.-U. Eichmann, P. Hedelt, F. Hendrick, H. Irie, V. Kumar, J.-C. Lambert, B. Langerock, C. Lerot, C. Liu, D. Loyola, A. Piters, A. Richter, C. Rivera Cárdenas, F. Romahn, R. G. Ryan, V. Sinha, N. Theys, J. Vlietinck, T. Wagner, T. Wang, H. Yu, M. Van Roozendael
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 12561-12593 (2021)
The TROPOspheric Monitoring Instrument (TROPOMI), launched in October 2017 on board the Sentinel-5 Precursor (S5P) satellite, monitors the composition of the Earth's atmosphere at an unprecedented horizontal resolution as fine as 3.5 × 5.5 km2. This
Externí odkaz:
https://doaj.org/article/63b57d1adc8e443588738fa3c1f24688
Autor:
C. A. Keller, M. J. Evans, K. E. Knowland, C. A. Hasenkopf, S. Modekurty, R. A. Lucchesi, T. Oda, B. B. Franca, F. C. Mandarino, M. V. Díaz Suárez, R. G. Ryan, L. H. Fakes, S. Pawson
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 3555-3592 (2021)
Social distancing to combat the COVID-19 pandemic has led to widespread reductions in air pollutant emissions. Quantifying these changes requires a business-as-usual counterfactual that accounts for the synoptic and seasonal variability of air pollut
Externí odkaz:
https://doaj.org/article/7e76dac4af184ffdaf71668e47656e41
Autor:
E. A. Marais, J. F. Roberts, R. G. Ryan, H. Eskes, K. F. Boersma, S. Choi, J. Joiner, N. Abuhassan, A. Redondas, M. Grutter, A. Cede, L. Gomez, M. Navarro-Comas
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 2389-2408 (2021)
Nitrogen oxides (NOx≡NO+NO2) in the NOx-limited upper troposphere (UT) are long-lived and so have a large influence on the oxidizing capacity of the troposphere and formation of the greenhouse gas ozone. Models misrepresent NOx in the UT, and obser
Externí odkaz:
https://doaj.org/article/cb3af8c365d9460a8f9845dca222d6b9
Publikováno v:
Atmospheric Measurement Techniques, Vol 13, Pp 6501-6519 (2020)
South-eastern Australia has been identified by modelling studies as a hotspot of biogenic volatile organic compound (VOC) emissions; however, long-term observational VOC studies are lacking in this region. Here, 2.5 years of multi-axis differential o
Externí odkaz:
https://doaj.org/article/0b7e708a262e4025a2d83fb0df489452
Autor:
M. A. Avery, R. A. Ryan, B. J. Getzewich, M. A. Vaughan, D. M. Winker, Y. Hu, A. Garnier, J. Pelon, C. A. Verhappen
Publikováno v:
Atmospheric Measurement Techniques, Vol 13, Pp 4539-4563 (2020)
Accurate determination of thermodynamic cloud phase is critical for establishing the radiative impact of clouds on climate and weather. Depolarization of the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) 532 nm signal provides a useful
Externí odkaz:
https://doaj.org/article/ad995d29f9244bd49a979cca85dd0356