Biophysical forcing of particle production and distribution during a spring bloom in the North Atlantic
Abstract: The beam attenuation serves as a proxy for particulate matter and is a key parameter in visibility algorithms for the aquatic environment. It is well known, however, that the beam attenuation is a function of the acceptance angle of the transmissometer used to measure it. Here we compare e...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.1055.2276 2023-05-15T17:33:04+02:00 Biophysical forcing of particle production and distribution during a spring bloom in the North Atlantic R J Res 3 T Gibbs E J W Baker W D Lavelle 5 I D Gardner M J Walsh S Richardson W J R V Pegau K J Zaneveld E Voss J Boss D J A Bogucki R E Domaradzki C R Ecke V Truman G Krivtsov Mitchelson-Jacob The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1055.2276 http://misclab.umeoce.maine.edu/documents/Bossetal2009.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1055.2276 http://misclab.umeoce.maine.edu/documents/Bossetal2009.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://misclab.umeoce.maine.edu/documents/Bossetal2009.pdf text ftciteseerx 2020-04-12T00:21:03Z Abstract: The beam attenuation serves as a proxy for particulate matter and is a key parameter in visibility algorithms for the aquatic environment. It is well known, however, that the beam attenuation is a function of the acceptance angle of the transmissometer used to measure it. Here we compare eight different transmissometers with four different acceptance angles using four different deployment strategies and sites, and find that their mean attenuation values differ markedly and in a consistent way with instrument acceptance angle: smaller acceptance angles provide higher beam attenuation values. This difference is due to variations in scattered light collected with different acceptance angles and is neither constant nor easy to parameterize. Variability (in space or time) in the ratios of beam attenuations measured by two different instruments correlates, in most cases, with the particle size parameter (as expected from Mie theory), but this correlation is often weak and can be the opposite of expectations based on particle size changes. We recommended careful consideration of acceptance angle in applications of beam transmission data especially when comparing data from different instruments. Text North Atlantic Unknown |
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description |
Abstract: The beam attenuation serves as a proxy for particulate matter and is a key parameter in visibility algorithms for the aquatic environment. It is well known, however, that the beam attenuation is a function of the acceptance angle of the transmissometer used to measure it. Here we compare eight different transmissometers with four different acceptance angles using four different deployment strategies and sites, and find that their mean attenuation values differ markedly and in a consistent way with instrument acceptance angle: smaller acceptance angles provide higher beam attenuation values. This difference is due to variations in scattered light collected with different acceptance angles and is neither constant nor easy to parameterize. Variability (in space or time) in the ratios of beam attenuations measured by two different instruments correlates, in most cases, with the particle size parameter (as expected from Mie theory), but this correlation is often weak and can be the opposite of expectations based on particle size changes. We recommended careful consideration of acceptance angle in applications of beam transmission data especially when comparing data from different instruments. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
R J Res 3 T Gibbs E J W Baker W D Lavelle 5 I D Gardner M J Walsh S Richardson W J R V Pegau K J Zaneveld E Voss J Boss D J A Bogucki R E Domaradzki C R Ecke V Truman G Krivtsov Mitchelson-Jacob |
spellingShingle |
R J Res 3 T Gibbs E J W Baker W D Lavelle 5 I D Gardner M J Walsh S Richardson W J R V Pegau K J Zaneveld E Voss J Boss D J A Bogucki R E Domaradzki C R Ecke V Truman G Krivtsov Mitchelson-Jacob Biophysical forcing of particle production and distribution during a spring bloom in the North Atlantic |
author_facet |
R J Res 3 T Gibbs E J W Baker W D Lavelle 5 I D Gardner M J Walsh S Richardson W J R V Pegau K J Zaneveld E Voss J Boss D J A Bogucki R E Domaradzki C R Ecke V Truman G Krivtsov Mitchelson-Jacob |
author_sort |
R J Res |
title |
Biophysical forcing of particle production and distribution during a spring bloom in the North Atlantic |
title_short |
Biophysical forcing of particle production and distribution during a spring bloom in the North Atlantic |
title_full |
Biophysical forcing of particle production and distribution during a spring bloom in the North Atlantic |
title_fullStr |
Biophysical forcing of particle production and distribution during a spring bloom in the North Atlantic |
title_full_unstemmed |
Biophysical forcing of particle production and distribution during a spring bloom in the North Atlantic |
title_sort |
biophysical forcing of particle production and distribution during a spring bloom in the north atlantic |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1055.2276 http://misclab.umeoce.maine.edu/documents/Bossetal2009.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
http://misclab.umeoce.maine.edu/documents/Bossetal2009.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1055.2276 http://misclab.umeoce.maine.edu/documents/Bossetal2009.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766131435158110208 |