Sea-Salt Optical Properties Over the Remote Oceans: Their Vertical Profiles and Variations with Wind Speed
ix, 95 leaves The size distribution and scattering coefficient of the marine aerosol was measured over the Southern Ocean during the First Aerosol Characterization Experiment (ACE 1) and over the tropical Pacific Ocean during the Second Pacific Exploratory Mission in the Tropics (PEMT-B). Thermal an...
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ftunivhawaiimano:oai:scholarspace.manoa.hawaii.edu:10125/6961 2023-05-15T18:25:00+02:00 Sea-Salt Optical Properties Over the Remote Oceans: Their Vertical Profiles and Variations with Wind Speed Shinozuka, Yohei Clarke, Antony D Oceanography 2002-12 application/pdf http://hdl.handle.net/10125/6961 unknown University of Hawaii at Manoa Theses for the degree of Master of Science (University of Hawaii at Manoa). Oceanography; no. 3758 http://hdl.handle.net/10125/6961 All UHM dissertations and theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission from the copyright owner. https://scholarspace.manoa.hawaii.edu/handle/10125/2125 Thesis Text 2002 ftunivhawaiimano 2022-07-17T13:27:40Z ix, 95 leaves The size distribution and scattering coefficient of the marine aerosol was measured over the Southern Ocean during the First Aerosol Characterization Experiment (ACE 1) and over the tropical Pacific Ocean during the Second Pacific Exploratory Mission in the Tropics (PEMT-B). Thermal analysis of particles at near ambient temperature (40 °C), 150 °C, and 300 °C enabled us to estimate size distributions of the volatile (mostly sulfate and organic) and refractory (mostly sea-salt) modes as well as their contributions to optical depth and cloud condensation nuclei. When averaged spatially and temporally, sea-salt concentrations show dependence upon wind speed over the Southern Ocean up to an altitude of 1200 m. Their median contribution to column optical depth is 0.057, 0.033, and 0.021 at wind speed >10 m/s, 5 -10 m/s, and ≤ 5 m/s, respectively, and the median over all wind speed categories is 0.041. However, on a case-by-case basis, the physical and optical properties show a large variance due to other meteorological conditions. The scales of this variability are also discussed along with examples of processes that contribute to them such as cloud processing and vertical wind speed gradient. Thesis Southern Ocean ScholarSpace at University of Hawaii at Manoa Pacific Southern Ocean |
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Open Polar |
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ScholarSpace at University of Hawaii at Manoa |
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ftunivhawaiimano |
language |
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description |
ix, 95 leaves The size distribution and scattering coefficient of the marine aerosol was measured over the Southern Ocean during the First Aerosol Characterization Experiment (ACE 1) and over the tropical Pacific Ocean during the Second Pacific Exploratory Mission in the Tropics (PEMT-B). Thermal analysis of particles at near ambient temperature (40 °C), 150 °C, and 300 °C enabled us to estimate size distributions of the volatile (mostly sulfate and organic) and refractory (mostly sea-salt) modes as well as their contributions to optical depth and cloud condensation nuclei. When averaged spatially and temporally, sea-salt concentrations show dependence upon wind speed over the Southern Ocean up to an altitude of 1200 m. Their median contribution to column optical depth is 0.057, 0.033, and 0.021 at wind speed >10 m/s, 5 -10 m/s, and ≤ 5 m/s, respectively, and the median over all wind speed categories is 0.041. However, on a case-by-case basis, the physical and optical properties show a large variance due to other meteorological conditions. The scales of this variability are also discussed along with examples of processes that contribute to them such as cloud processing and vertical wind speed gradient. |
author2 |
Clarke, Antony D Oceanography |
format |
Thesis |
author |
Shinozuka, Yohei |
spellingShingle |
Shinozuka, Yohei Sea-Salt Optical Properties Over the Remote Oceans: Their Vertical Profiles and Variations with Wind Speed |
author_facet |
Shinozuka, Yohei |
author_sort |
Shinozuka, Yohei |
title |
Sea-Salt Optical Properties Over the Remote Oceans: Their Vertical Profiles and Variations with Wind Speed |
title_short |
Sea-Salt Optical Properties Over the Remote Oceans: Their Vertical Profiles and Variations with Wind Speed |
title_full |
Sea-Salt Optical Properties Over the Remote Oceans: Their Vertical Profiles and Variations with Wind Speed |
title_fullStr |
Sea-Salt Optical Properties Over the Remote Oceans: Their Vertical Profiles and Variations with Wind Speed |
title_full_unstemmed |
Sea-Salt Optical Properties Over the Remote Oceans: Their Vertical Profiles and Variations with Wind Speed |
title_sort |
sea-salt optical properties over the remote oceans: their vertical profiles and variations with wind speed |
publisher |
University of Hawaii at Manoa |
publishDate |
2002 |
url |
http://hdl.handle.net/10125/6961 |
geographic |
Pacific Southern Ocean |
geographic_facet |
Pacific Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
Theses for the degree of Master of Science (University of Hawaii at Manoa). Oceanography; no. 3758 http://hdl.handle.net/10125/6961 |
op_rights |
All UHM dissertations and theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission from the copyright owner. https://scholarspace.manoa.hawaii.edu/handle/10125/2125 |
_version_ |
1766206101086273536 |