Zobrazeno 1 - 10
of 31
pro vyhledávání: '"B. J. John"'
Autor:
Z. Zang, J. Liu, D. Tarasick, O. Moeini, J. Bian, J. Zhang, A. M. Thompson, R. Van Malderen, H. G. J. Smit, R. M. Stauffer, B. J. Johnson, D. E. Kollonige
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 13889-13912 (2024)
A global-scale horizontally and vertically resolved ozone climatology provides detailed insights into ozone variability. Here, the seasonal, annual and decadal monthly Trajectory-mapped Ozonesonde dataset for the Stratosphere and Troposphere (TOST) o
Externí odkaz:
https://doaj.org/article/0780ca4e91404d01a9e44ad08eeb8b72
Autor:
A. Keppens, S. Di Pede, D. Hubert, J.-C. Lambert, P. Veefkind, M. Sneep, J. De Haan, M. ter Linden, T. Leblanc, S. Compernolle, T. Verhoelst, J. Granville, O. Nath, A. M. Fjæraa, I. Boyd, S. Niemeijer, R. Van Malderen, H. G. J. Smit, V. Duflot, S. Godin-Beekmann, B. J. Johnson, W. Steinbrecht, D. W. Tarasick, D. E. Kollonige, R. M. Stauffer, A. M. Thompson, A. Dehn, C. Zehner
Publikováno v:
Atmospheric Measurement Techniques, Vol 17, Pp 3969-3993 (2024)
The Sentinel-5 Precursor (S5P) satellite operated by the European Space Agency has carried the TROPOspheric Monitoring Instrument (TROPOMI) on a Sun-synchronous low-Earth orbit since 13 October 2017. The S5P mission has acquired more than 5 years of
Externí odkaz:
https://doaj.org/article/218218c251c342fa9984d6eeb6a6f168
Autor:
R. M. Stauffer, A. M. Thompson, D. E. Kollonige, N. Komala, H. K. Al-Ghazali, D. Y. Risdianto, A. Dindang, A. Fairudz bin Jamaluddin, M. K. Sammathuria, N. B. Zakaria, B. J. Johnson, P. D. Cullis
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 5221-5234 (2024)
Positive trends in tropical free-tropospheric (FT) ozone are frequently ascribed to emissions growth, but less is known about the effects of changing dynamics. Extending a prior study (Thompson et al., 2021; https://doi.org/10.1029/2021JD034691; “T
Externí odkaz:
https://doaj.org/article/9c26c81b256c49829739b475e3d65f96
Autor:
H. G. J. Smit, D. Poyraz, R. Van Malderen, A. M. Thompson, D. W. Tarasick, R. M. Stauffer, B. J. Johnson, D. E. Kollonige
Publikováno v:
Atmospheric Measurement Techniques, Vol 17, Pp 73-112 (2024)
Although in principle ECC (electrochemical concentration cell) ozonesondes are absolute measuring devices, in practice they have several “artefacts” which change over the course of a flight. Most of the artefacts have been corrected in the recomm
Externí odkaz:
https://doaj.org/article/58e0f108865e4985930472c6828bd007
Autor:
V. Fioletov, X. Zhao, I. Abboud, M. Brohart, A. Ogyu, R. Sit, S. C. Lee, I. Petropavlovskikh, K. Miyagawa, B. J. Johnson, P. Cullis, J. Booth, G. McConville, C. T. McElroy
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 12731-12751 (2023)
The Antarctic polar vortex creates unique chemical and dynamical conditions when the stratospheric air over Antarctica is isolated from the rest of the stratosphere. As a result, stratospheric ozone within the vortex remains largely unchanged for a 5
Externí odkaz:
https://doaj.org/article/13a7665b606b4940a7fe7c1da4cb7bc4
Autor:
B. J. Johnston, N. M. Schneider, S. K. Jain, Z. Milby, J. Deighan, C. F. Bowers, G. A. DiBraccio, J.‐C. Gérard, L. Soret, Z. Girazian, D. A. Brain, S. Ruhunusiri, S. Curry
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 24, Pp n/a-n/a (2023)
Abstract Discrete aurora are sporadic emissions of light originating in Mars upper atmosphere. We report nadir imaging observations from MAVEN's Imaging UltraViolet Spectrograph which identify the conditions which trigger electron precipitation causi
Externí odkaz:
https://doaj.org/article/8120be272b7d41c69fa3028b5746b64e
Autor:
B. J. Johnson, P. Cullis, J. Booth, I. Petropavlovskikh, G. McConville, B. Hassler, G. A. Morris, C. Sterling, S. Oltmans
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 3133-3146 (2023)
Balloon-borne ozonesondes launched weekly from South Pole Station (1986–2021) measure high-vertical-resolution profiles of ozone and temperature from the surface to 30–35 km altitude. The launch frequency is increased in late winter before the on
Externí odkaz:
https://doaj.org/article/62a88dc9d9044967965e7a43b7190ac5
Publikováno v:
Colorectal Disease. 12:642-645
Background Colonoscopic services are increasingly being utilized in surveillance of conditions predisposing to colorectal cancers (CRC). The ACPGBI/BSG guidelines are the most commonly followed recommendations. Numerous retrospective studies have sho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::907ff1239473176ca503ecf37839a354
https://doi.org/10.1111/j.1463-1318.2009.01869.x
https://doi.org/10.1111/j.1463-1318.2009.01869.x
Publikováno v:
Alimentary Pharmacology and Therapeutics. 23:1511-1523
Summary Background Obesity is increasingly being recognized as a risk factor for a number of benign and malignant gastrointestinal conditions. However, literature on the underlying pathophysiological mechanisms is sparse and ambiguous. Insulin resist
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ebb3d4aefea17362bc8426f738fe52ad
https://doi.org/10.1111/j.1365-2036.2006.02915.x
https://doi.org/10.1111/j.1365-2036.2006.02915.x
Publikováno v:
Colorectal Disease. 10:898-900
Introduction The British society of Gastroenterologists (BSG) have laid down guidelines for surveillance colonoscopies in patients with large bowel adenomatous polyps. However, numerous studies have shown the gross over-utilization of colonoscopic se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d12893726d9347fee9f1accc3ba1f53
https://doi.org/10.1111/j.1463-1318.2008.01516.x
https://doi.org/10.1111/j.1463-1318.2008.01516.x