Zobrazeno 1 - 10
of 19
pro vyhledávání: '"E J Welton"'
Autor:
P Sawamura, J P Vernier, J E Barnes, T A Berkoff, E J Welton, L Alados-Arboledas, F Navas-Guzmán, G Pappalardo, L Mona, F Madonna, D Lange, M Sicard, S Godin-Beekmann, G Payen, Z Wang, S Hu, S N Tripathi, C Cordoba-Jabonero, R M Hoff
Publikováno v:
Environmental Research Letters, Vol 7, Iss 3, p 034013 (2012)
Nabro volcano (13.37°N, 41.70°E) in Eritrea erupted on 13 June 2011 generating a layer of sulfate aerosols that persisted in the stratosphere for months. For the first time we report on ground-based lidar observations of the same event from every c
Externí odkaz:
https://doaj.org/article/31d4024d902a4dce97650ccf0c013181
Autor:
M. J. Osborne, J. de Leeuw, C. Witham, A. Schmidt, F. Beckett, N. Kristiansen, J. Buxmann, C. Saint, E. J. Welton, J. Fochesatto, A. R. Gomes, U. Bundke, A. Petzold, F. Marenco, J. Haywood
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 2975-2997 (2022)
Between 27 June and 14 July 2019 aerosol layers were observed by the United Kingdom (UK) Raman lidar network in the upper troposphere and lower stratosphere. The arrival of these aerosol layers in late June caused some concern within the London Volca
Externí odkaz:
https://doaj.org/article/a01e5a6c4bfa42f283ef97a0a18f0aa3
Publikováno v:
Atmospheric Measurement Techniques, Vol 13, Pp 6901-6913 (2020)
A method to distinguish cloud thermodynamic phase from polarized Micro Pulse Lidar (MPL) measurements is described. The method employs a simple enumerative approach to classify cloud layers as either liquid water, ice water, or mixed-phase clouds bas
Externí odkaz:
https://doaj.org/article/f7deeb1fbd6a4b8ab35e527587a29c4e
Autor:
D. M. Giles, A. Sinyuk, M. G. Sorokin, J. S. Schafer, A. Smirnov, I. Slutsker, T. F. Eck, B. N. Holben, J. R. Lewis, J. R. Campbell, E. J. Welton, S. V. Korkin, A. I. Lyapustin
Publikováno v:
Atmospheric Measurement Techniques, Vol 12, Pp 169-209 (2019)
The Aerosol Robotic Network (AERONET) has provided highly accurate, ground-truth measurements of the aerosol optical depth (AOD) using Cimel Electronique Sun–sky radiometers for more than 25 years. In Version 2 (V2) of the AERONET database, the nea
Externí odkaz:
https://doaj.org/article/d00b00bbbcdf44428e68cacfc772d221
Autor:
S. Lolli, F. Madonna, M. Rosoldi, J. R. Campbell, E. J. Welton, J. R. Lewis, Y. Gu, G. Pappalardo
Publikováno v:
Atmospheric Measurement Techniques, Vol 11, Pp 1639-1651 (2018)
In the past 2 decades, ground-based lidar networks have drastically increased in scope and relevance, thanks primarily to the advent of lidar observations from space and their need for validation. Lidar observations of aerosol and cloud geometrica
Externí odkaz:
https://doaj.org/article/8de35b03312b4d799678d12c0ba679c6
Publikováno v:
Atmospheric Chemistry and Physics, Vol 17, Pp 7025-7034 (2017)
We compare, for the first time, the performance of a simplified atmospheric radiative transfer algorithm package, the Corti–Peter (CP) model, versus the more complex Fu–Liou–Gu (FLG) model, for resolving top-of-the-atmosphere radiative forci
Externí odkaz:
https://doaj.org/article/cda4e054b676495ebc1fb683100c71ac
Autor:
J. S. Reid, P. Xian, B. N. Holben, E. J. Hyer, E. A. Reid, S. V. Salinas, J. Zhang, J. R. Campbell, B. N. Chew, R. E. Holz, A. P. Kuciauskas, N. Lagrosas, D. J. Posselt, C. R. Sampson, A. L. Walker, E. J. Welton, C. Zhang
Publikováno v:
Atmospheric Chemistry and Physics, Vol 16, Pp 14041-14056 (2016)
The largest 7 Southeast Asian Studies (7SEAS) operation period within the Maritime Continent (MC) occurred in the August–September 2012 biomass burning season. Included was an enhanced deployment of Aerosol Robotic Network (AERONET) sun photomet
Externí odkaz:
https://doaj.org/article/69080d541f144d409f94e858d09f5d78
Publikováno v:
Atmospheric Measurement Techniques, Vol 8, Iss 9, Pp 3647-3669 (2015)
We use observations from the space-based Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) to evaluate global aerosol distributions simulated in the NASA Modern Era Retrospective Analysis for Research and Applications aerosol reanalysis (MERR
Externí odkaz:
https://doaj.org/article/6b93369b4c8a45ae82a8a0cc7fec5b41
Publikováno v:
Atmospheric Measurement Techniques, Vol 8, Iss 1, Pp 435-449 (2015)
2012 Level-2 Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) satellite-based cloud data sets are investigated for thresholds that distinguish the presence of cirrus clouds in autonomous lidar measurements, based on temperatures, heights, op
Externí odkaz:
https://doaj.org/article/fdd6c314972b478da5e5d4a726f9cbc5
Autor:
T. F. Eck, B. N. Holben, J. S. Reid, A. Arola, R. A. Ferrare, C. A. Hostetler, S. N. Crumeyrolle, T. A. Berkoff, E. J. Welton, S. Lolli, A. Lyapustin, Y. Wang, J. S. Schafer, D. M. Giles, B. E. Anderson, K. L. Thornhill, P. Minnis, K. E. Pickering, C. P. Loughner, A. Smirnov, A. Sinyuk
Publikováno v:
Atmospheric Chemistry and Physics, Vol 14, Iss 21, Pp 11633-11656 (2014)
During the July 2011 Deriving Information on Surface conditions from Column and Vertically Resolved Observations Relevant to Air Quality (DISCOVER-AQ) field experiment in Maryland, significant enhancements in Aerosol Robotic Network (AERONET) sun–s
Externí odkaz:
https://doaj.org/article/eddc1e2773964079b5a961e0c391c7bf