Report on parameterizing seasonal response patterns in primary- and net community production to ocean alkalinization
We applied a 1-D plankton ecosystem-biogeochemical model to assess the impacts of ocean alkalinity enhancement (OAE) on seasonal changes in biogeochemistry and plankton dynamics. Depending on deployment scenarios, OAE should theoretically have variable effects on pH and seawater pCO2, which might in...
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Online Access: | https://oceanrep.geomar.de/id/eprint/54585/ https://oceanrep.geomar.de/id/eprint/54585/7/OceanNEtsReport_Deliverable5.2-v2.pdf https://oceanrep.geomar.de/id/eprint/54585/1/Deliverable5-3.pdf https://doi.org/10.3289/oceannets_d5.2 |
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ftoceanrep:oai:oceanrep.geomar.de:54585 2023-05-15T17:36:30+02:00 Report on parameterizing seasonal response patterns in primary- and net community production to ocean alkalinization Taucher, Jan Schartau, Markus 2021-11-30 text https://oceanrep.geomar.de/id/eprint/54585/ https://oceanrep.geomar.de/id/eprint/54585/7/OceanNEtsReport_Deliverable5.2-v2.pdf https://oceanrep.geomar.de/id/eprint/54585/1/Deliverable5-3.pdf https://doi.org/10.3289/oceannets_d5.2 en eng OceanNETs https://oceanrep.geomar.de/id/eprint/54585/7/OceanNEtsReport_Deliverable5.2-v2.pdf https://oceanrep.geomar.de/id/eprint/54585/1/Deliverable5-3.pdf Taucher, J. and Schartau, M. (2021) Report on parameterizing seasonal response patterns in primary- and net community production to ocean alkalinization. Open Access . OceanNets Deliverable, D5.2 . OceanNETs, Kiel, Germany, 17 pp. DOI 10.3289/oceannets_d5.2 <https://doi.org/10.3289/oceannets_d5.2>. doi:10.3289/oceannets_d5.2 cc_by_4.0 info:eu-repo/semantics/openAccess Report NonPeerReviewed info:eu-repo/semantics/book 2021 ftoceanrep https://doi.org/10.3289/oceannets_d5.2 2023-04-07T15:59:58Z We applied a 1-D plankton ecosystem-biogeochemical model to assess the impacts of ocean alkalinity enhancement (OAE) on seasonal changes in biogeochemistry and plankton dynamics. Depending on deployment scenarios, OAE should theoretically have variable effects on pH and seawater pCO2, which might in turn affect (a) plankton growth conditions and (b) the efficiency of carbon dioxide removal (CDR) via OAE. Thus, a major focus of our work is how different magnitudes and temporal frequencies of OAE might affect seasonal response patterns of net primary productivity (NPP), ecosystem functioning and biogeochemical cycling. With our study we aimed at identifying a parameterization of how magnitude and frequency of OAE affect net growth rates, so that these effects could be employed for Earth System Modell applications. So far we learned that a meaningful response parameterization has to resolve positive and negative anomalies that covary with temporal shifts. As to the intricacy of the response patterns, the derivation of such parameterization is work in progress. However, our study readily provides valuable insights to how OAE can alter plankton dynamics and biogeochemistry. Our modelling study first focuses at a local site where time series data are available (European Station for Time series in the Ocean Canary Islands ESTOC), including measurements of pH, concentrations of total alkalinity, dissolved inorganic carbon (DIC), chlorophyll-a and dissolved inorganic nitrogen (DIN). These observational data were made available by Andres Cianca (personal communication, PLOCAN, Spain), Melchor Gonzalez and Magdalena Santana Casiano (personal communication, Universidad de Las Palmas de Gran Canaria). The choice of this location was underpinned by the fact that the first OAE mesocosm experiment was conducted on the Canary Island Gran Canaria, which will facilitate synthesizing our modelling approach with experimental findings. For our simulations at the ESTOC site in the Subtropical North Atlantic we found distinct, ... Book North Atlantic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Gonzalez ENVELOPE(-58.250,-58.250,-63.917,-63.917) Las Palmas ENVELOPE(-60.674,-60.674,-62.971,-62.971) |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
We applied a 1-D plankton ecosystem-biogeochemical model to assess the impacts of ocean alkalinity enhancement (OAE) on seasonal changes in biogeochemistry and plankton dynamics. Depending on deployment scenarios, OAE should theoretically have variable effects on pH and seawater pCO2, which might in turn affect (a) plankton growth conditions and (b) the efficiency of carbon dioxide removal (CDR) via OAE. Thus, a major focus of our work is how different magnitudes and temporal frequencies of OAE might affect seasonal response patterns of net primary productivity (NPP), ecosystem functioning and biogeochemical cycling. With our study we aimed at identifying a parameterization of how magnitude and frequency of OAE affect net growth rates, so that these effects could be employed for Earth System Modell applications. So far we learned that a meaningful response parameterization has to resolve positive and negative anomalies that covary with temporal shifts. As to the intricacy of the response patterns, the derivation of such parameterization is work in progress. However, our study readily provides valuable insights to how OAE can alter plankton dynamics and biogeochemistry. Our modelling study first focuses at a local site where time series data are available (European Station for Time series in the Ocean Canary Islands ESTOC), including measurements of pH, concentrations of total alkalinity, dissolved inorganic carbon (DIC), chlorophyll-a and dissolved inorganic nitrogen (DIN). These observational data were made available by Andres Cianca (personal communication, PLOCAN, Spain), Melchor Gonzalez and Magdalena Santana Casiano (personal communication, Universidad de Las Palmas de Gran Canaria). The choice of this location was underpinned by the fact that the first OAE mesocosm experiment was conducted on the Canary Island Gran Canaria, which will facilitate synthesizing our modelling approach with experimental findings. For our simulations at the ESTOC site in the Subtropical North Atlantic we found distinct, ... |
format |
Book |
author |
Taucher, Jan Schartau, Markus |
spellingShingle |
Taucher, Jan Schartau, Markus Report on parameterizing seasonal response patterns in primary- and net community production to ocean alkalinization |
author_facet |
Taucher, Jan Schartau, Markus |
author_sort |
Taucher, Jan |
title |
Report on parameterizing seasonal response patterns in primary- and net community production to ocean alkalinization |
title_short |
Report on parameterizing seasonal response patterns in primary- and net community production to ocean alkalinization |
title_full |
Report on parameterizing seasonal response patterns in primary- and net community production to ocean alkalinization |
title_fullStr |
Report on parameterizing seasonal response patterns in primary- and net community production to ocean alkalinization |
title_full_unstemmed |
Report on parameterizing seasonal response patterns in primary- and net community production to ocean alkalinization |
title_sort |
report on parameterizing seasonal response patterns in primary- and net community production to ocean alkalinization |
publisher |
OceanNETs |
publishDate |
2021 |
url |
https://oceanrep.geomar.de/id/eprint/54585/ https://oceanrep.geomar.de/id/eprint/54585/7/OceanNEtsReport_Deliverable5.2-v2.pdf https://oceanrep.geomar.de/id/eprint/54585/1/Deliverable5-3.pdf https://doi.org/10.3289/oceannets_d5.2 |
long_lat |
ENVELOPE(-58.250,-58.250,-63.917,-63.917) ENVELOPE(-60.674,-60.674,-62.971,-62.971) |
geographic |
Gonzalez Las Palmas |
geographic_facet |
Gonzalez Las Palmas |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://oceanrep.geomar.de/id/eprint/54585/7/OceanNEtsReport_Deliverable5.2-v2.pdf https://oceanrep.geomar.de/id/eprint/54585/1/Deliverable5-3.pdf Taucher, J. and Schartau, M. (2021) Report on parameterizing seasonal response patterns in primary- and net community production to ocean alkalinization. Open Access . OceanNets Deliverable, D5.2 . OceanNETs, Kiel, Germany, 17 pp. DOI 10.3289/oceannets_d5.2 <https://doi.org/10.3289/oceannets_d5.2>. doi:10.3289/oceannets_d5.2 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3289/oceannets_d5.2 |
_version_ |
1766136008373436416 |