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Modulation in Ocean Primary Production due to Variability of Photosynthetically Available Radiation under Different Atmospheric Conditions
Joint Authors
Tripathy, Madhumita
Raman, Mini
Ajai,
Chauhan, Prakash
Source
International Journal of Oceanography
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-01-05
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Earth Science , Water and Environment
History and Geography
Science
Abstract EN
The rate of photosynthesis primarily depends on nutrients and photosynthetically available radiation (PAR) at sea surface.
Several ship cruises were carried out to measure optical, biological, and atmospheric parameters in the Arabian Sea and their variability were studied.
An analytical nonspectral photosynthesis-irradiance model was used to estimate euphotic primary production (EuPP) to study its variability during cruise periods.
PAR was estimated using COART model using in situ measured aerosol optical depth (AOD) to compare with in situ measured PAR.
In order to understand the variability of PAR under different types of aerosol and different aerosol loading, a simulation study was carried out using COART model.
EuPP was estimated for various PAR values under different aerosol loading and cloud coverage conditions.
Sensitivity analysis showed that for maritime, maritime polluted, and desert aerosols, the ratio PAR/PAR0AOD has attenuated to about 11–25%, whereas it has attenuated to 44% for urban aerosol type.
PAR/PARclear sky was reduced by ~57% for high aerosol loading and for overcast sky.
The decrease in EuPP under various aerosol loading and cloud coverage was observed to depend on the photoadaptation parameter.
EuPP/EuPPclear sky was reduced by 38% for maximum maritime aerosol loading and for overcast sky.
American Psychological Association (APA)
Tripathy, Madhumita& Raman, Mini& Chauhan, Prakash& Ajai,. 2014. Modulation in Ocean Primary Production due to Variability of Photosynthetically Available Radiation under Different Atmospheric Conditions. International Journal of Oceanography،Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-459826
Modern Language Association (MLA)
Tripathy, Madhumita…[et al.]. Modulation in Ocean Primary Production due to Variability of Photosynthetically Available Radiation under Different Atmospheric Conditions. International Journal of Oceanography No. 2014 (2014), pp.1-12.
https://search.emarefa.net/detail/BIM-459826
American Medical Association (AMA)
Tripathy, Madhumita& Raman, Mini& Chauhan, Prakash& Ajai,. Modulation in Ocean Primary Production due to Variability of Photosynthetically Available Radiation under Different Atmospheric Conditions. International Journal of Oceanography. 2014. Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-459826
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-459826