Negligible direct radiative forcing of basin‐scale climate by coccolithophore blooms
The water-leaving radiance, defined as radiation from the sun reflected off particles in water and exiting the ocean surface back into the atmosphere and space, is often used to derive ocean-colour information from remotely sensed data. However, it is in itself a measure of the amount of solar irrad...
Published in: | Geophysical Research Letters |
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2001
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Online Access: | https://hdl.handle.net/11370/c33db540-1ee4-4c00-86c5-be45f1e2f213 https://research.rug.nl/en/publications/c33db540-1ee4-4c00-86c5-be45f1e2f213 https://doi.org/10.1029/2001GL012989 https://pure.rug.nl/ws/files/66762269/Gondwe_et_al_2001_Geophysical_Research_Letters.pdf |
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ftunigroningenpu:oai:pure.rug.nl:publications/c33db540-1ee4-4c00-86c5-be45f1e2f213 2024-06-23T07:55:09+00:00 Negligible direct radiative forcing of basin‐scale climate by coccolithophore blooms Gondwe, M. Klaassen, Wim Gieskes, Winfried de Baar, Hein 2001 application/pdf https://hdl.handle.net/11370/c33db540-1ee4-4c00-86c5-be45f1e2f213 https://research.rug.nl/en/publications/c33db540-1ee4-4c00-86c5-be45f1e2f213 https://doi.org/10.1029/2001GL012989 https://pure.rug.nl/ws/files/66762269/Gondwe_et_al_2001_Geophysical_Research_Letters.pdf eng eng https://research.rug.nl/en/publications/c33db540-1ee4-4c00-86c5-be45f1e2f213 info:eu-repo/semantics/openAccess Gondwe , M , Klaassen , W , Gieskes , W & de Baar , H 2001 , ' Negligible direct radiative forcing of basin‐scale climate by coccolithophore blooms ' , Geophysical research letters , vol. 28 , no. 20 , pp. 3911-3914 . https://doi.org/10.1029/2001GL012989 CENTRAL NORTH-ATLANTIC BACKSCATTERING RADIANCE OPTICAL-PROPERTIES ATTENUATION maine model SCATTERING CELLS article 2001 ftunigroningenpu https://doi.org/10.1029/2001GL012989 2024-06-10T16:12:45Z The water-leaving radiance, defined as radiation from the sun reflected off particles in water and exiting the ocean surface back into the atmosphere and space, is often used to derive ocean-colour information from remotely sensed data. However, it is in itself a measure of the amount of solar irradiance reflected by oceanic constituents and, therefore, not available to the Earth's heat reservoir (changes in which can affect the Earth's energy balance and climate). A strong influence on the water-leaving radiance is observed from coccolithophore blooms, owing to the highly reflective calcareous platelets or coccoliths covering these marine algae. We analysed remotely sensed water-leaving radiances (1998-1999) over the N. Atlantic, where the blooms are spatially and temporally most abundant, and found that the direct radiative forcing of climate between 402-565 nm (the major range of optical influence) by coccolithophores in this ocean is negligible (similar to0.05 W m(-2) mean annually). This is in contrast to what in situ or laboratory measurements on the immense local intensity of coccolithophore visible light scatter in the past two decades have led us to believe. Article in Journal/Newspaper North Atlantic University of Groningen research database Geophysical Research Letters 28 20 3911 3914 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
topic |
CENTRAL NORTH-ATLANTIC BACKSCATTERING RADIANCE OPTICAL-PROPERTIES ATTENUATION maine model SCATTERING CELLS |
spellingShingle |
CENTRAL NORTH-ATLANTIC BACKSCATTERING RADIANCE OPTICAL-PROPERTIES ATTENUATION maine model SCATTERING CELLS Gondwe, M. Klaassen, Wim Gieskes, Winfried de Baar, Hein Negligible direct radiative forcing of basin‐scale climate by coccolithophore blooms |
topic_facet |
CENTRAL NORTH-ATLANTIC BACKSCATTERING RADIANCE OPTICAL-PROPERTIES ATTENUATION maine model SCATTERING CELLS |
description |
The water-leaving radiance, defined as radiation from the sun reflected off particles in water and exiting the ocean surface back into the atmosphere and space, is often used to derive ocean-colour information from remotely sensed data. However, it is in itself a measure of the amount of solar irradiance reflected by oceanic constituents and, therefore, not available to the Earth's heat reservoir (changes in which can affect the Earth's energy balance and climate). A strong influence on the water-leaving radiance is observed from coccolithophore blooms, owing to the highly reflective calcareous platelets or coccoliths covering these marine algae. We analysed remotely sensed water-leaving radiances (1998-1999) over the N. Atlantic, where the blooms are spatially and temporally most abundant, and found that the direct radiative forcing of climate between 402-565 nm (the major range of optical influence) by coccolithophores in this ocean is negligible (similar to0.05 W m(-2) mean annually). This is in contrast to what in situ or laboratory measurements on the immense local intensity of coccolithophore visible light scatter in the past two decades have led us to believe. |
format |
Article in Journal/Newspaper |
author |
Gondwe, M. Klaassen, Wim Gieskes, Winfried de Baar, Hein |
author_facet |
Gondwe, M. Klaassen, Wim Gieskes, Winfried de Baar, Hein |
author_sort |
Gondwe, M. |
title |
Negligible direct radiative forcing of basin‐scale climate by coccolithophore blooms |
title_short |
Negligible direct radiative forcing of basin‐scale climate by coccolithophore blooms |
title_full |
Negligible direct radiative forcing of basin‐scale climate by coccolithophore blooms |
title_fullStr |
Negligible direct radiative forcing of basin‐scale climate by coccolithophore blooms |
title_full_unstemmed |
Negligible direct radiative forcing of basin‐scale climate by coccolithophore blooms |
title_sort |
negligible direct radiative forcing of basin‐scale climate by coccolithophore blooms |
publishDate |
2001 |
url |
https://hdl.handle.net/11370/c33db540-1ee4-4c00-86c5-be45f1e2f213 https://research.rug.nl/en/publications/c33db540-1ee4-4c00-86c5-be45f1e2f213 https://doi.org/10.1029/2001GL012989 https://pure.rug.nl/ws/files/66762269/Gondwe_et_al_2001_Geophysical_Research_Letters.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Gondwe , M , Klaassen , W , Gieskes , W & de Baar , H 2001 , ' Negligible direct radiative forcing of basin‐scale climate by coccolithophore blooms ' , Geophysical research letters , vol. 28 , no. 20 , pp. 3911-3914 . https://doi.org/10.1029/2001GL012989 |
op_relation |
https://research.rug.nl/en/publications/c33db540-1ee4-4c00-86c5-be45f1e2f213 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2001GL012989 |
container_title |
Geophysical Research Letters |
container_volume |
28 |
container_issue |
20 |
container_start_page |
3911 |
op_container_end_page |
3914 |
_version_ |
1802647608900976640 |