Chlorophyll a reconstruction from in situ measurements: 1. Method description
Understanding the development of primary production is essential for projections of the global carbon cycle in the context of climate change. A chlorophyll a hindcast that serves as a primary production indicator was obtained by fitting in situ measurements of nitrate, chlorophyll a, and temperature...
Published in: | Journal of Geophysical Research: Biogeosciences |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
AGU
2015
|
Subjects: | |
Online Access: | https://oceanrep.geomar.de/id/eprint/29762/ https://oceanrep.geomar.de/id/eprint/29762/1/jgrg20337.pdf https://doi.org/10.1002/2014JG002691 |
id |
ftoceanrep:oai:oceanrep.geomar.de:29762 |
---|---|
record_format |
openpolar |
spelling |
ftoceanrep:oai:oceanrep.geomar.de:29762 2023-05-15T17:32:20+02:00 Chlorophyll a reconstruction from in situ measurements: 1. Method description Fründt, B. Dippner, J. W. Waniek, Joanna J. 2015 text https://oceanrep.geomar.de/id/eprint/29762/ https://oceanrep.geomar.de/id/eprint/29762/1/jgrg20337.pdf https://doi.org/10.1002/2014JG002691 en eng AGU https://oceanrep.geomar.de/id/eprint/29762/1/jgrg20337.pdf Fründt, B., Dippner, J. W. and Waniek, J. J. (2015) Chlorophyll a reconstruction from in situ measurements: 1. Method description. Open Access Journal of Geophysical Research: Biogeosciences, 120 (2). pp. 237-245. DOI 10.1002/2014JG002691 <https://doi.org/10.1002/2014JG002691>. doi:10.1002/2014JG002691 cc_by_3.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2015 ftoceanrep https://doi.org/10.1002/2014JG002691 2023-04-07T15:20:54Z Understanding the development of primary production is essential for projections of the global carbon cycle in the context of climate change. A chlorophyll a hindcast that serves as a primary production indicator was obtained by fitting in situ measurements of nitrate, chlorophyll a, and temperature. The resulting fitting functions were adapted to a modeled temperature field. The method was applied to observations from the Madeira Basin, in the northeastern part of the oligotrophic North Atlantic Subtropical Gyre and yielded a chlorophyll a field from 1989 to 2008 with a monthly resolution validated with remotely measured surface chlorophyll a data by SeaWiFS. The chlorophyll a hindcast determined with our method resolved the seasonal and interannual variability in the phytoplankton biomass of the euphotic zone as well as the deep chlorophyll maximum. Moreover, it will allow estimation of carbon uptake over long time scales. Article in Journal/Newspaper North Atlantic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Journal of Geophysical Research: Biogeosciences 120 2 237 245 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Understanding the development of primary production is essential for projections of the global carbon cycle in the context of climate change. A chlorophyll a hindcast that serves as a primary production indicator was obtained by fitting in situ measurements of nitrate, chlorophyll a, and temperature. The resulting fitting functions were adapted to a modeled temperature field. The method was applied to observations from the Madeira Basin, in the northeastern part of the oligotrophic North Atlantic Subtropical Gyre and yielded a chlorophyll a field from 1989 to 2008 with a monthly resolution validated with remotely measured surface chlorophyll a data by SeaWiFS. The chlorophyll a hindcast determined with our method resolved the seasonal and interannual variability in the phytoplankton biomass of the euphotic zone as well as the deep chlorophyll maximum. Moreover, it will allow estimation of carbon uptake over long time scales. |
format |
Article in Journal/Newspaper |
author |
Fründt, B. Dippner, J. W. Waniek, Joanna J. |
spellingShingle |
Fründt, B. Dippner, J. W. Waniek, Joanna J. Chlorophyll a reconstruction from in situ measurements: 1. Method description |
author_facet |
Fründt, B. Dippner, J. W. Waniek, Joanna J. |
author_sort |
Fründt, B. |
title |
Chlorophyll a reconstruction from in situ measurements: 1. Method description |
title_short |
Chlorophyll a reconstruction from in situ measurements: 1. Method description |
title_full |
Chlorophyll a reconstruction from in situ measurements: 1. Method description |
title_fullStr |
Chlorophyll a reconstruction from in situ measurements: 1. Method description |
title_full_unstemmed |
Chlorophyll a reconstruction from in situ measurements: 1. Method description |
title_sort |
chlorophyll a reconstruction from in situ measurements: 1. method description |
publisher |
AGU |
publishDate |
2015 |
url |
https://oceanrep.geomar.de/id/eprint/29762/ https://oceanrep.geomar.de/id/eprint/29762/1/jgrg20337.pdf https://doi.org/10.1002/2014JG002691 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://oceanrep.geomar.de/id/eprint/29762/1/jgrg20337.pdf Fründt, B., Dippner, J. W. and Waniek, J. J. (2015) Chlorophyll a reconstruction from in situ measurements: 1. Method description. Open Access Journal of Geophysical Research: Biogeosciences, 120 (2). pp. 237-245. DOI 10.1002/2014JG002691 <https://doi.org/10.1002/2014JG002691>. doi:10.1002/2014JG002691 |
op_rights |
cc_by_3.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/2014JG002691 |
container_title |
Journal of Geophysical Research: Biogeosciences |
container_volume |
120 |
container_issue |
2 |
container_start_page |
237 |
op_container_end_page |
245 |
_version_ |
1766130407987740672 |