Southern Ocean ecosystem and global carbon cycle responses to iron fertilisation during the last glacial cycle ...
Rising atmospheric CO2 concentration is one of the major drivers of climate change. To provide effective mitigation policies to curb these emissions, a thorough understanding of past changes in the carbon cycle is required. Decades of research on understanding carbon cycle changes during the last gl...
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UNSW Sydney
2023
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Online Access: | https://dx.doi.org/10.26190/unsworks/25038 http://hdl.handle.net/1959.4/101331 |
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ftdatacite:10.26190/unsworks/25038 2023-10-01T03:59:32+02:00 Southern Ocean ecosystem and global carbon cycle responses to iron fertilisation during the last glacial cycle ... Saini, Himadri 2023 https://dx.doi.org/10.26190/unsworks/25038 http://hdl.handle.net/1959.4/101331 en eng UNSW Sydney Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 Marine biogeochemistry Global carbon cycle Heinrich Events Iron fertilisation 3702 Climate change science doctoral thesis Dissertation thesis Thesis 2023 ftdatacite https://doi.org/10.26190/unsworks/25038 2023-09-04T13:29:39Z Rising atmospheric CO2 concentration is one of the major drivers of climate change. To provide effective mitigation policies to curb these emissions, a thorough understanding of past changes in the carbon cycle is required. Decades of research on understanding carbon cycle changes during the last glacial cycle have put forward several processes impacting the concentration of atmospheric CO2. One of these processes is changes in aeolian iron flux into the Southern Ocean. Marine plankton fix dissolved inorganic carbon (DIC) during photosynthesis and transfer the fixed carbon to the deep ocean. DIC removal from the surface lowers the surface ocean partial pressure of CO2, which leads to carbon drawdown from the atmosphere. As the Southern Ocean is a high-nutrient-low-chlorophyll region, the increase in iron input can impact Southern Ocean marine ecosystems, by increasing export production, and therefore decreasing surface DIC. This thesis aims to investigate the responses of Southern Ocean marine ecosystems to ... Doctoral or Postdoctoral Thesis Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) Southern Ocean |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Marine biogeochemistry Global carbon cycle Heinrich Events Iron fertilisation 3702 Climate change science |
spellingShingle |
Marine biogeochemistry Global carbon cycle Heinrich Events Iron fertilisation 3702 Climate change science Saini, Himadri Southern Ocean ecosystem and global carbon cycle responses to iron fertilisation during the last glacial cycle ... |
topic_facet |
Marine biogeochemistry Global carbon cycle Heinrich Events Iron fertilisation 3702 Climate change science |
description |
Rising atmospheric CO2 concentration is one of the major drivers of climate change. To provide effective mitigation policies to curb these emissions, a thorough understanding of past changes in the carbon cycle is required. Decades of research on understanding carbon cycle changes during the last glacial cycle have put forward several processes impacting the concentration of atmospheric CO2. One of these processes is changes in aeolian iron flux into the Southern Ocean. Marine plankton fix dissolved inorganic carbon (DIC) during photosynthesis and transfer the fixed carbon to the deep ocean. DIC removal from the surface lowers the surface ocean partial pressure of CO2, which leads to carbon drawdown from the atmosphere. As the Southern Ocean is a high-nutrient-low-chlorophyll region, the increase in iron input can impact Southern Ocean marine ecosystems, by increasing export production, and therefore decreasing surface DIC. This thesis aims to investigate the responses of Southern Ocean marine ecosystems to ... |
format |
Doctoral or Postdoctoral Thesis |
author |
Saini, Himadri |
author_facet |
Saini, Himadri |
author_sort |
Saini, Himadri |
title |
Southern Ocean ecosystem and global carbon cycle responses to iron fertilisation during the last glacial cycle ... |
title_short |
Southern Ocean ecosystem and global carbon cycle responses to iron fertilisation during the last glacial cycle ... |
title_full |
Southern Ocean ecosystem and global carbon cycle responses to iron fertilisation during the last glacial cycle ... |
title_fullStr |
Southern Ocean ecosystem and global carbon cycle responses to iron fertilisation during the last glacial cycle ... |
title_full_unstemmed |
Southern Ocean ecosystem and global carbon cycle responses to iron fertilisation during the last glacial cycle ... |
title_sort |
southern ocean ecosystem and global carbon cycle responses to iron fertilisation during the last glacial cycle ... |
publisher |
UNSW Sydney |
publishDate |
2023 |
url |
https://dx.doi.org/10.26190/unsworks/25038 http://hdl.handle.net/1959.4/101331 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.26190/unsworks/25038 |
_version_ |
1778533673009676288 |