Relating estimates of CaCO3 production, export, and dissolution in the water column to measurements of CaCO3 rain into sediment traps and dissolution on the sea floor: A revised global carbonate budget
[1] The global CaCO3 budget is constrained by new estimates of standing stocks, fluxes through the water column, and dissolution in the water column and on the sea floor. Previous estimates of carbonate production and export are indistinguishable within a large range of values, 0.4 - 1.8 Gt PIC yr(-...
Published in: | Global Biogeochemical Cycles |
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Format: | Article in Journal/Newspaper |
Language: | English |
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AMER GEOPHYSICAL UNION
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Online Access: | https://oasis.postech.ac.kr/handle/2014.oak/23503 https://doi.org/10.1029/2006GB002803 |
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ftponangunivst:oai:oasis.postech.ac.kr:2014.oak/23503 2023-05-15T17:35:17+02:00 Relating estimates of CaCO3 production, export, and dissolution in the water column to measurements of CaCO3 rain into sediment traps and dissolution on the sea floor: A revised global carbonate budget Berelson, WM Balch, WM Najjar, R Feely, RA Sabine, C Lee, K 환경연구소 10056383 Lee, K 2007-03-24 https://oasis.postech.ac.kr/handle/2014.oak/23503 https://doi.org/10.1029/2006GB002803 English eng AMER GEOPHYSICAL UNION GLOBAL BIOGEOCHEMICAL CYCLES 21 1 15 SCI급, SCOPUS 등재논문 SCI Environmental Sciences Geosciences, Multidisciplinary Meteorology & Atmospheric Sciences Environmental Sciences & Ecology Geology 0886-6236 2007-OAK-0000006687 https://oasis.postech.ac.kr/handle/2014.oak/23503 doi:10.1029/2006GB002803 7197 GLOBAL BIOGEOCHEMICAL CYCLES, v.21, no.1, pp.1 - 15 000245187000001 2-s2.0-34249654151 IN-SITU MEASUREMENTS NORTH-ATLANTIC OCEAN CALCIUM-CARBONATE ORGANIC-CARBON DEEP-SEA EQUATORIAL PACIFIC CONTINENTAL-MARGIN INORGANIC CARBON BENTHIC REMINERALIZATION CHEMICAL LYSOCLINE BIOGENIC PARTICLE FLUXES ORGANIC-MATTER Article ART 2007 ftponangunivst https://doi.org/10.1029/2006GB002803 2022-10-20T20:15:17Z [1] The global CaCO3 budget is constrained by new estimates of standing stocks, fluxes through the water column, and dissolution in the water column and on the sea floor. Previous estimates of carbonate production and export are indistinguishable within a large range of values, 0.4 - 1.8 Gt PIC yr(-1). Globally, excess alkalinity (TA*) and water mass tracers indicate dissolution of 1.0 Gt PIC yr(-1) between 200 and 1500 m, suggesting production and export must at least equal this amount. Most water column dissolution occurs at high latitudes, and alkalinity fluxes from outer shelf and upper slope sediments ( 100 - 1500 m) only support 5 - 10% of the TA* inventory. Below 2000 m, the sinking flux of PIC (0.6 Gt PIC yr(-1)) is consistent with the rate of sea floor dissolution (0.4 Gt PIC yr(-1)) plus burial (0.1 Gt PIC yr(-1)). This rain rate constrains the export value to > 1.6 Gt PIC yr(-1). Satellite-based estimates of standing stocks of CaCO3 indicate a decrease equatorward, which is opposite in trend to sediment trap fluxes. This observation may be explained by an equatorward decrease in sinking particle dissolution, systematic changes in PIC residence time with latitude, or satellite retrieval problems. Globally averaged euphotic zone standing stock (5.4 mmol m(-2)) and export estimates indicate PIC residence times of 5 - 18 days. X 1 1 77 81 scie scopus Article in Journal/Newspaper North Atlantic Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS) Pacific Global Biogeochemical Cycles 21 1 |
institution |
Open Polar |
collection |
Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS) |
op_collection_id |
ftponangunivst |
language |
English |
topic |
IN-SITU MEASUREMENTS NORTH-ATLANTIC OCEAN CALCIUM-CARBONATE ORGANIC-CARBON DEEP-SEA EQUATORIAL PACIFIC CONTINENTAL-MARGIN INORGANIC CARBON BENTHIC REMINERALIZATION CHEMICAL LYSOCLINE BIOGENIC PARTICLE FLUXES ORGANIC-MATTER |
spellingShingle |
IN-SITU MEASUREMENTS NORTH-ATLANTIC OCEAN CALCIUM-CARBONATE ORGANIC-CARBON DEEP-SEA EQUATORIAL PACIFIC CONTINENTAL-MARGIN INORGANIC CARBON BENTHIC REMINERALIZATION CHEMICAL LYSOCLINE BIOGENIC PARTICLE FLUXES ORGANIC-MATTER Berelson, WM Balch, WM Najjar, R Feely, RA Sabine, C Lee, K Relating estimates of CaCO3 production, export, and dissolution in the water column to measurements of CaCO3 rain into sediment traps and dissolution on the sea floor: A revised global carbonate budget |
topic_facet |
IN-SITU MEASUREMENTS NORTH-ATLANTIC OCEAN CALCIUM-CARBONATE ORGANIC-CARBON DEEP-SEA EQUATORIAL PACIFIC CONTINENTAL-MARGIN INORGANIC CARBON BENTHIC REMINERALIZATION CHEMICAL LYSOCLINE BIOGENIC PARTICLE FLUXES ORGANIC-MATTER |
description |
[1] The global CaCO3 budget is constrained by new estimates of standing stocks, fluxes through the water column, and dissolution in the water column and on the sea floor. Previous estimates of carbonate production and export are indistinguishable within a large range of values, 0.4 - 1.8 Gt PIC yr(-1). Globally, excess alkalinity (TA*) and water mass tracers indicate dissolution of 1.0 Gt PIC yr(-1) between 200 and 1500 m, suggesting production and export must at least equal this amount. Most water column dissolution occurs at high latitudes, and alkalinity fluxes from outer shelf and upper slope sediments ( 100 - 1500 m) only support 5 - 10% of the TA* inventory. Below 2000 m, the sinking flux of PIC (0.6 Gt PIC yr(-1)) is consistent with the rate of sea floor dissolution (0.4 Gt PIC yr(-1)) plus burial (0.1 Gt PIC yr(-1)). This rain rate constrains the export value to > 1.6 Gt PIC yr(-1). Satellite-based estimates of standing stocks of CaCO3 indicate a decrease equatorward, which is opposite in trend to sediment trap fluxes. This observation may be explained by an equatorward decrease in sinking particle dissolution, systematic changes in PIC residence time with latitude, or satellite retrieval problems. Globally averaged euphotic zone standing stock (5.4 mmol m(-2)) and export estimates indicate PIC residence times of 5 - 18 days. X 1 1 77 81 scie scopus |
author2 |
환경연구소 10056383 Lee, K |
format |
Article in Journal/Newspaper |
author |
Berelson, WM Balch, WM Najjar, R Feely, RA Sabine, C Lee, K |
author_facet |
Berelson, WM Balch, WM Najjar, R Feely, RA Sabine, C Lee, K |
author_sort |
Berelson, WM |
title |
Relating estimates of CaCO3 production, export, and dissolution in the water column to measurements of CaCO3 rain into sediment traps and dissolution on the sea floor: A revised global carbonate budget |
title_short |
Relating estimates of CaCO3 production, export, and dissolution in the water column to measurements of CaCO3 rain into sediment traps and dissolution on the sea floor: A revised global carbonate budget |
title_full |
Relating estimates of CaCO3 production, export, and dissolution in the water column to measurements of CaCO3 rain into sediment traps and dissolution on the sea floor: A revised global carbonate budget |
title_fullStr |
Relating estimates of CaCO3 production, export, and dissolution in the water column to measurements of CaCO3 rain into sediment traps and dissolution on the sea floor: A revised global carbonate budget |
title_full_unstemmed |
Relating estimates of CaCO3 production, export, and dissolution in the water column to measurements of CaCO3 rain into sediment traps and dissolution on the sea floor: A revised global carbonate budget |
title_sort |
relating estimates of caco3 production, export, and dissolution in the water column to measurements of caco3 rain into sediment traps and dissolution on the sea floor: a revised global carbonate budget |
publisher |
AMER GEOPHYSICAL UNION |
publishDate |
2007 |
url |
https://oasis.postech.ac.kr/handle/2014.oak/23503 https://doi.org/10.1029/2006GB002803 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
GLOBAL BIOGEOCHEMICAL CYCLES 21 1 15 SCI급, SCOPUS 등재논문 SCI Environmental Sciences Geosciences, Multidisciplinary Meteorology & Atmospheric Sciences Environmental Sciences & Ecology Geology 0886-6236 2007-OAK-0000006687 https://oasis.postech.ac.kr/handle/2014.oak/23503 doi:10.1029/2006GB002803 7197 GLOBAL BIOGEOCHEMICAL CYCLES, v.21, no.1, pp.1 - 15 000245187000001 2-s2.0-34249654151 |
op_doi |
https://doi.org/10.1029/2006GB002803 |
container_title |
Global Biogeochemical Cycles |
container_volume |
21 |
container_issue |
1 |
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1766134394832027648 |