Search Results - "Thomason, L. W."

The Persistently Variable "Background" Stratospheric Aerosol Layer and Global Climate Change by Solomon, S., Daniel, J. S., Neely, R. R., Vernier, J.-P., Dutton, E. G., Thomason, L. W.

“…Recent measurements demonstrate that the "background" stratospheric aerosol layer is persistently variable rather than constant, even in the absence of major…”
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Improved SAGE II cloud/aerosol categorization and observations of the Asian tropopause aerosol layer: 1989–2005 by Thomason, L. W, Vernier, J.-P

“…We describe the challenges associated with the interpretation of extinction coefficient measurements by the Stratospheric Aerosol and Gas Experiment (SAGE II)…”
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CALIPSO detection of an Asian tropopause aerosol layer by Vernier, J.-P., Thomason, L. W., Kar, J.

“…The first four years of the CALIPSO lidar measurements have revealed the existence of an aerosol layer at the tropopause level associated with the Asian…”
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Major influence of tropical volcanic eruptions on the stratospheric aerosol layer during the last decade by Vernier, J.-P., Thomason, L. W., Pommereau, J.-P., Bourassa, A., Pelon, J., Garnier, A., Hauchecorne, A., Blanot, L., Trepte, C., Degenstein, Doug, Vargas, F.

“…The variability of stratospheric aerosol loading between 1985 and 2010 is explored with measurements from SAGE II, CALIPSO, GOMOS/ENVISAT, and OSIRIS/Odin…”
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Reevaluation of stratospheric ozone trends from SAGE II data using a simultaneous temporal and spatial analysis by Damadeo, R. P, Zawodny, J. M, Thomason, L. W

“…This paper details a new method of regression for sparsely sampled data sets for use with time-series analysis, in particular the Stratospheric Aerosol and Gas…”
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SAGE version 7.0 algorithm: application to SAGE II by Damadeo, R. P, Zawodny, J. M, Thomason, L. W, Iyer, N

“…This paper details the SAGE (Stratospheric Aerosol and Gas Experiment) version 7.0 algorithm and how it is applied to SAGE II. Changes made between the…”
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Modeling the stratospheric warming following the Mt. Pinatubo eruption: uncertainties in aerosol extinctions by Arfeuille, F, Luo, B. P, Heckendorn, P, Weisenstein, D, Sheng, J. X, Rozanov, E, Schraner, M, Brönnimann, S, Thomason, L. W, Peter, T

“…In terms of atmospheric impact, the volcanic eruption of Mt. Pinatubo (1991) is the best characterized large eruption on record. We investigate here the…”
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Toward a combined SAGE II-HALOE aerosol climatology: an evaluation of HALOE version 19 stratospheric aerosol extinction coefficient observations by Thomason, L. W

“…Herein, the Halogen Occultation Experiment (HALOE) aerosol extinction coefficient data is evaluated in the low aerosol loading period after 1996 as the first…”
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The 2009–2010 Arctic polar stratospheric cloud season: a CALIPSO perspective by Pitts, M. C., Poole, L. R., Dörnbrack, A., Thomason, L. W.

“…Spaceborne lidar measurements from CALIPSO (Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations) are used to provide a vortex-wide perspective…”
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An assessment of CALIOP polar stratospheric cloud composition classification by Pitts, M. C, Poole, L. R, Lambert, A, Thomason, L. W

“…This study assesses the robustness of the CALIOP (Cloud-Aerosol Lidar with Orthogonal Polarization) polar stratospheric cloud (PSC) composition classification…”
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Improved stratospheric aerosol extinction profiles from SCIAMACHY: validation and sample results by von Savigny, C, Ernst, F, Rozanov, A, Hommel, R, Eichmann, K.-U, Rozanov, V, Burrows, J. P, Thomason, L. W

“…Stratospheric aerosol extinction profiles have been retrieved from SCIAMACHY/Envisat measurements of limb-scattered solar radiation. The retrieval is an…”
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Tropical stratospheric aerosol layer from CALIPSO lidar observations by Vernier, J. P., Pommereau, J. P., Garnier, A., Pelon, J., Larsen, N., Nielsen, J., Christensen, T., Cairo, F., Thomason, L. W., Leblanc, T., McDermid, I. S.

“…The evolution of the aerosols in the tropical stratosphere since the beginning of the Cloud‐Aerosol Lidar and Infrared Pathfinder Satellite Observation…”
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Comment on "Large volcanic aerosol load in the stratosphere linked to Asian monsoon transport" by Fromm, Michael, Nedoluha, Gerald, Charvát, Zdenek

“…Bourassa et al. (Reports, 6 July 2012, p. 78) report on the 13 June 2011 eruption of the Nabro volcano and satellite observations of stratospheric aerosol that…”
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Characterization of Polar Stratospheric Clouds with spaceborne lidar: CALIPSO and the 2006 Antarctic season by Pitts, M. C., Thomason, L. W., Poole, L. R., Winker, D. M.

“…The role of polar stratospheric clouds in polar ozone loss has been well documented. The CALIPSO satellite mission offers a new opportunity to characterize…”
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A global climatology of stratospheric aerosol surface area density deduced from Stratospheric Aerosol and Gas Experiment II measurements: 1984-1994 by Thomason, L. W., Poole, L. R., Deshler, T.

“…A global climatology of stratospheric aerosol surface area density has been developed using the multiwavelength aerosol extinction measurements of the…”
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Tracking the 2022 Hunga Tonga-Hunga Ha'Apai Aerosol Cloud in the Upper and Middle Stratosphere Using Space-Based Observations by Taha, G, Loughman, R, Colarco, P R, Zhu, T, Thomason, L W, Jaross, G

“…On 15 January 2022, the submarine Hunga Tonga volcanic eruption lofted materials high into the upper stratosphere, reaching a record-breaking altitude of ~58…”
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An evaluation of the SAGE III version 4 aerosol extinction coefficient and water vapor data products by Thomason, L. W., Moore, J. R., Pitts, M. C., Zawodny, J. M., Chiou, E. W.

“…Herein, we provide an assessment of the data quality of Stratospheric Aerosol and Gas Experiment (SAGE III) Version 4 aerosol extinction coefficient and water…”
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CALIPSO observations of stratospheric aerosols: a preliminary assessment by Thomason, L. W., Pitts, M. C., Winker, D. M.

“…We have examined the 532-nm aerosol backscatter coefficient measurements by the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO)…”
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Atmospheric effects of the Mt Pinatubo eruption by McCormick, M.P

“…The eruption of Mt Pinatubo in June 1991 caused the largest perturbation this century to the particulate content of the stratosphere. The radiative influence…”
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Technical Note: Time-dependent limb-darkening calibration for solar occultation instruments by Burton, S. P., Thomason, L. W., Zawodny, J. M.

“…Solar occultation has proven to be a reliable technique for the measurement of atmospheric constituents in the stratosphere. NASA's Stratospheric Aerosol and…”
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