Zobrazeno 1 - 10
of 335
pro vyhledávání: '"A. R. Klekociuk"'
Autor:
R. S. Humphries, M. D. Keywood, J. P. Ward, J. Harnwell, S. P. Alexander, A. R. Klekociuk, K. Hara, I. M. McRobert, A. Protat, J. Alroe, L. T. Cravigan, B. Miljevic, Z. D. Ristovski, R. Schofield, S. R. Wilson, C. J. Flynn, G. R. Kulkarni, G. G. Mace, G. M. McFarquhar, S. D. Chambers, A. G. Williams, A. D. Griffiths
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 3749-3777 (2023)
The remoteness and extreme conditions of the Southern Ocean and Antarctic region have meant that observations in this region are rare, and typically restricted to summertime during research or resupply voyages. Observations of aerosols outside of the
Externí odkaz:
https://doaj.org/article/8a6f64f03df443e48892d6cba6659a0f
Publikováno v:
Atmospheric Measurement Techniques, Vol 15, Pp 3663-3681 (2022)
Cloud and aerosol lidars measuring backscatter and depolarization ratio are the most suitable lidars to detect cloud phase (liquid, ice, or mixed phase). However, such instruments are not widely deployed as part of operational networks. In this study
Externí odkaz:
https://doaj.org/article/409486f9a22a426a84c208ad97b95974
Autor:
Gerald Nedoluha, Paul J. Fraser, Simon P. Alexander, Sylvia Nichol, Richard Querel, Dan Smale, Stuart I. Henderson, Paul B. Krummel, Matthew B. Tully, Andrew R. Klekociuk
Publikováno v:
Journal of Southern Hemisphere Earth Systems Science, Vol 72, Iss 1, Pp 19-37 (2022)
The Antarctic ozone hole remains the focus of scientific attention because of its importance to the health of the biosphere and its influence on the climate of the southern hemisphere. Here we examine the general characteristics of the 2020 Antarctic
Externí odkaz:
https://doaj.org/article/78e74a46f04d4cd39957f12643f09d77
Autor:
A. D. Fraser, R. A. Massom, M. S. Handcock, P. Reid, K. I. Ohshima, M. N. Raphael, J. Cartwright, A. R. Klekociuk, Z. Wang, R. Porter-Smith
Publikováno v:
The Cryosphere, Vol 15, Pp 5061-5077 (2021)
Landfast sea ice (fast ice) is an important though poorly understood component of the cryosphere on the Antarctic continental shelf, where it plays a key role in atmosphere–ocean–ice-sheet interaction and coupled ecological and biogeochemical pro
Externí odkaz:
https://doaj.org/article/7aa407daf1784738a54b1a15e7b29e9f
Autor:
C. K. Crockart, T. R. Vance, A. D. Fraser, N. J. Abram, A. S. Criscitiello, M. A. J. Curran, V. Favier, A. J. E. Gallant, C. Kittel, H. A. Kjær, A. R. Klekociuk, L. M. Jong, A. D. Moy, C. T. Plummer, P. T. Vallelonga, J. Wille, L. Zhang
Publikováno v:
Climate of the Past, Vol 17, Pp 1795-1818 (2021)
Paleoclimate archives, such as high-resolution ice core records, provide a means to investigate past climate variability. Until recently, the Law Dome (Dome Summit South site) ice core record remained one of few millennial-length high-resolution coas
Externí odkaz:
https://doaj.org/article/c8e62960e2a5428f9e04985f9316d0d2
Publikováno v:
Ecology and Evolution, Vol 11, Iss 9, Pp 4972-4991 (2021)
Abstract For procellariiform seabirds, wind and morphology are crucial determinants of flight costs and flight speeds. During chick‐rearing, parental seabirds commute frequently to provision their chicks, and their body mass typically changes betwe
Externí odkaz:
https://doaj.org/article/35f5ea00544d4f14b033641b027922d6
Autor:
Gerald Nedoluha, Paul J. Fraser, Simon P. Alexander, Sylvia Nichol, Richard Querel, Dan Smale, Stuart I. Henderson, Paul B. Krummel, Matthew B. Tully, Andrew R. Klekociuk
Publikováno v:
Journal of Southern Hemisphere Earth Systems Science, Vol 71, Iss 1, Pp 66-91 (2021)
While the Montreal Protocol is reducing stratospheric ozone loss, recent increases in some ozone depleting substance (ODS) emissions have been identified that may impact southern hemisphere climate systems. In this study, we discuss characteristics o
Externí odkaz:
https://doaj.org/article/3faa58b039bd441fa9ab1a6f2805df31
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 14757-14768 (2020)
Reanalysis products are an invaluable tool for representing variability and long-term trends in regions with limited in situ data, and especially the Antarctic. A comparison of eight different reanalysis products shows large differences in sea level
Externí odkaz:
https://doaj.org/article/6631d5f22d0a4a8e9edf96f4319e2868
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 8691-8708 (2020)
Observational evidence of a quasi-quadrennial oscillation (QQO) in the polar mesosphere is presented based on the analysis of 24 years of hydroxyl (OH) nightglow rotational temperatures derived from scanning spectrometer observations above Davis rese
Externí odkaz:
https://doaj.org/article/63dc1208577b4533b083d29f7d198f7b
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 6379-6394 (2020)
The long-term trend, solar cycle response, and residual variability in 24 years of hydroxyl nightglow rotational temperatures above Davis research station, Antarctica (68∘ S, 78∘ E) are reported. Hydroxyl rotational temperatures are a layer-w
Externí odkaz:
https://doaj.org/article/b157c070c3504adb871e046a2a534ba5