Part of the global DOC versus AOU (dissolved organic carbon/apparent oxygen utilization) data compilation, Ross Sea
Dissolved and particulate organic matter was measured during six cruises to the southern Ross Sea. The cruises were conducted during late austral winter to autumn from 1994 to 1997 and included coverage of various stages of the seasonal phytoplankton bloom. The data from the various years are compil...
Main Authors: | , , , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2000
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.807563 https://doi.org/10.1594/PANGAEA.807563 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.807563 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
96_4A-10-2 96_4A-11-2 96_4A-13-1 96_4A-14-2 96_4A-15-2 96_4A-17-2 96_4A-18-2 96_4A-19-1 96_4A-20-2 96_4A-2-1 96_4A-21-1 96_4A-22-1 96_4A-23-2 96_4A-24-2 96_4A-3-2 96_4A-4-1 96_4A-5-1 96_4A-6-1 96_4A-7-1 96_4A-8-1 96_4A-9-1 97_1-10-1 97_1-1-1 97_1-11-1 97_1-13-1 97_1-14-1 97_1-15-1 97_1-16-1 97_1-17-1 97_1-18-1 97_1-19-1 97_1-20-1 97_1-2-1 97_1-21-1 97_1-22-1 97_1-23-1 97_1-24-1 97_1-25-1 97_1-27-1 97_1-3-1 97_1-4-2 97_1-5-1 97_1-6-1 97_1-7-1 97_1-8-1 97_1-9-2 97_3-10-6 97_3-11-1 97_3-12-2 97_3-13-2 |
spellingShingle |
96_4A-10-2 96_4A-11-2 96_4A-13-1 96_4A-14-2 96_4A-15-2 96_4A-17-2 96_4A-18-2 96_4A-19-1 96_4A-20-2 96_4A-2-1 96_4A-21-1 96_4A-22-1 96_4A-23-2 96_4A-24-2 96_4A-3-2 96_4A-4-1 96_4A-5-1 96_4A-6-1 96_4A-7-1 96_4A-8-1 96_4A-9-1 97_1-10-1 97_1-1-1 97_1-11-1 97_1-13-1 97_1-14-1 97_1-15-1 97_1-16-1 97_1-17-1 97_1-18-1 97_1-19-1 97_1-20-1 97_1-2-1 97_1-21-1 97_1-22-1 97_1-23-1 97_1-24-1 97_1-25-1 97_1-27-1 97_1-3-1 97_1-4-2 97_1-5-1 97_1-6-1 97_1-7-1 97_1-8-1 97_1-9-2 97_3-10-6 97_3-11-1 97_3-12-2 97_3-13-2 Carlson, C A Hansell, Dennis A Peltzer, Edward T Smith, Walker O Jr Part of the global DOC versus AOU (dissolved organic carbon/apparent oxygen utilization) data compilation, Ross Sea |
topic_facet |
96_4A-10-2 96_4A-11-2 96_4A-13-1 96_4A-14-2 96_4A-15-2 96_4A-17-2 96_4A-18-2 96_4A-19-1 96_4A-20-2 96_4A-2-1 96_4A-21-1 96_4A-22-1 96_4A-23-2 96_4A-24-2 96_4A-3-2 96_4A-4-1 96_4A-5-1 96_4A-6-1 96_4A-7-1 96_4A-8-1 96_4A-9-1 97_1-10-1 97_1-1-1 97_1-11-1 97_1-13-1 97_1-14-1 97_1-15-1 97_1-16-1 97_1-17-1 97_1-18-1 97_1-19-1 97_1-20-1 97_1-2-1 97_1-21-1 97_1-22-1 97_1-23-1 97_1-24-1 97_1-25-1 97_1-27-1 97_1-3-1 97_1-4-2 97_1-5-1 97_1-6-1 97_1-7-1 97_1-8-1 97_1-9-2 97_3-10-6 97_3-11-1 97_3-12-2 97_3-13-2 |
description |
Dissolved and particulate organic matter was measured during six cruises to the southern Ross Sea. The cruises were conducted during late austral winter to autumn from 1994 to 1997 and included coverage of various stages of the seasonal phytoplankton bloom. The data from the various years are compiled into a representative seasonal cycle in order to assess general patterns of dissolved organic matter (DOM) and particulate organic matter (POM) dynamics in the southern Ross Sea. Dissolved organic carbon (DOC) and particulate organic carbon (POC) were at background concentrations of approximately 42 and 3 µM C, respectively, during the late winter conditions in October. As the spring phytoplankton bloom progressed, organic matter increased, and by January DOC and POC reached as high as 30 and 107 µM C, respectively, in excess of initial wintertime conditions. Stocks and concentrations of DOC and POC returned to near background values by autumn (April). Approximately 90% of the accumulated organic matter was partitioned into POM, with modest net accumulation of DOM stocks despite large net organic matter production and the dominance of Phaeocystis antarctica. Changes in NO3 concentration from wintertime values were used to calculate the equivalent biological drawdown of dissolved inorganic carbon (DICequiv). The fraction of DICequiv drawdown resulting in net DOC production was relatively constant (ca. 11%), despite large temporal and spatial variability in DICequiv drawdown. The C : N (molar ratio) of the seasonally produced DOM had a geometric mean of 6.2 and was nitrogen-rich compared to background DOM. The DOM stocks that accumulate in excess of deep refractory background stocks are often referred to as "semi-labile" DOM. The "semi-labile" pool in the Ross Sea turns over on timescales of about 6 months. As a result of the modest net DOM production and its lability, the role DOM plays in export to the deep sea is small in this region. |
format |
Dataset |
author |
Carlson, C A Hansell, Dennis A Peltzer, Edward T Smith, Walker O Jr |
author_facet |
Carlson, C A Hansell, Dennis A Peltzer, Edward T Smith, Walker O Jr |
author_sort |
Carlson, C A |
title |
Part of the global DOC versus AOU (dissolved organic carbon/apparent oxygen utilization) data compilation, Ross Sea |
title_short |
Part of the global DOC versus AOU (dissolved organic carbon/apparent oxygen utilization) data compilation, Ross Sea |
title_full |
Part of the global DOC versus AOU (dissolved organic carbon/apparent oxygen utilization) data compilation, Ross Sea |
title_fullStr |
Part of the global DOC versus AOU (dissolved organic carbon/apparent oxygen utilization) data compilation, Ross Sea |
title_full_unstemmed |
Part of the global DOC versus AOU (dissolved organic carbon/apparent oxygen utilization) data compilation, Ross Sea |
title_sort |
part of the global doc versus aou (dissolved organic carbon/apparent oxygen utilization) data compilation, ross sea |
publisher |
PANGAEA |
publishDate |
2000 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.807563 https://doi.org/10.1594/PANGAEA.807563 |
op_coverage |
MEDIAN LATITUDE: -76.069457 * MEDIAN LONGITUDE: 175.539130 * SOUTH-BOUND LATITUDE: -78.040000 * WEST-BOUND LONGITUDE: 163.300000 * NORTH-BOUND LATITUDE: -65.010000 * EAST-BOUND LONGITUDE: -174.000000 * MINIMUM DEPTH, water: 0 m * MAXIMUM DEPTH, water: 3100 m |
long_lat |
ENVELOPE(163.300000,-174.000000,-65.010000,-78.040000) |
genre |
Antarc* Antarctica Ross Sea |
genre_facet |
Antarc* Antarctica Ross Sea |
op_source |
Supplement to: Carlson, C A; Hansell, Dennis A; Peltzer, Edward T; Smith, Walker O Jr (2000): Stocks and dynamics of dissolved and particulate organic matter in the southern Ross Sea, Antarctica. Deep Sea Research Part II: Topical Studies in Oceanography, 47(15-16), 3201-3225, https://doi.org/10.1016/S0967-0645(00)00065-5 |
op_relation |
Arístegui, Javier; Duarte, Carlos Manuel; Agustí, Susana; Doval, María Dolores; Alvarez-Salgado, Xose Anton; Hansell, Dennis A (2002): Dissolved organic carbon support of respiration in the dark ocean. Science, 298(5600), 1967, https://doi.org/10.1126/science.1076746 https://doi.pangaea.de/10.1594/PANGAEA.807563 https://doi.org/10.1594/PANGAEA.807563 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.80756310.1016/S0967-0645(00)00065-510.1126/science.1076746 |
_version_ |
1810494405669289984 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.807563 2024-09-15T17:46:21+00:00 Part of the global DOC versus AOU (dissolved organic carbon/apparent oxygen utilization) data compilation, Ross Sea Carlson, C A Hansell, Dennis A Peltzer, Edward T Smith, Walker O Jr MEDIAN LATITUDE: -76.069457 * MEDIAN LONGITUDE: 175.539130 * SOUTH-BOUND LATITUDE: -78.040000 * WEST-BOUND LONGITUDE: 163.300000 * NORTH-BOUND LATITUDE: -65.010000 * EAST-BOUND LONGITUDE: -174.000000 * MINIMUM DEPTH, water: 0 m * MAXIMUM DEPTH, water: 3100 m 2000 text/tab-separated-values, 4784 data points https://doi.pangaea.de/10.1594/PANGAEA.807563 https://doi.org/10.1594/PANGAEA.807563 en eng PANGAEA Arístegui, Javier; Duarte, Carlos Manuel; Agustí, Susana; Doval, María Dolores; Alvarez-Salgado, Xose Anton; Hansell, Dennis A (2002): Dissolved organic carbon support of respiration in the dark ocean. Science, 298(5600), 1967, https://doi.org/10.1126/science.1076746 https://doi.pangaea.de/10.1594/PANGAEA.807563 https://doi.org/10.1594/PANGAEA.807563 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Carlson, C A; Hansell, Dennis A; Peltzer, Edward T; Smith, Walker O Jr (2000): Stocks and dynamics of dissolved and particulate organic matter in the southern Ross Sea, Antarctica. Deep Sea Research Part II: Topical Studies in Oceanography, 47(15-16), 3201-3225, https://doi.org/10.1016/S0967-0645(00)00065-5 96_4A-10-2 96_4A-11-2 96_4A-13-1 96_4A-14-2 96_4A-15-2 96_4A-17-2 96_4A-18-2 96_4A-19-1 96_4A-20-2 96_4A-2-1 96_4A-21-1 96_4A-22-1 96_4A-23-2 96_4A-24-2 96_4A-3-2 96_4A-4-1 96_4A-5-1 96_4A-6-1 96_4A-7-1 96_4A-8-1 96_4A-9-1 97_1-10-1 97_1-1-1 97_1-11-1 97_1-13-1 97_1-14-1 97_1-15-1 97_1-16-1 97_1-17-1 97_1-18-1 97_1-19-1 97_1-20-1 97_1-2-1 97_1-21-1 97_1-22-1 97_1-23-1 97_1-24-1 97_1-25-1 97_1-27-1 97_1-3-1 97_1-4-2 97_1-5-1 97_1-6-1 97_1-7-1 97_1-8-1 97_1-9-2 97_3-10-6 97_3-11-1 97_3-12-2 97_3-13-2 dataset 2000 ftpangaea https://doi.org/10.1594/PANGAEA.80756310.1016/S0967-0645(00)00065-510.1126/science.1076746 2024-08-13T23:45:38Z Dissolved and particulate organic matter was measured during six cruises to the southern Ross Sea. The cruises were conducted during late austral winter to autumn from 1994 to 1997 and included coverage of various stages of the seasonal phytoplankton bloom. The data from the various years are compiled into a representative seasonal cycle in order to assess general patterns of dissolved organic matter (DOM) and particulate organic matter (POM) dynamics in the southern Ross Sea. Dissolved organic carbon (DOC) and particulate organic carbon (POC) were at background concentrations of approximately 42 and 3 µM C, respectively, during the late winter conditions in October. As the spring phytoplankton bloom progressed, organic matter increased, and by January DOC and POC reached as high as 30 and 107 µM C, respectively, in excess of initial wintertime conditions. Stocks and concentrations of DOC and POC returned to near background values by autumn (April). Approximately 90% of the accumulated organic matter was partitioned into POM, with modest net accumulation of DOM stocks despite large net organic matter production and the dominance of Phaeocystis antarctica. Changes in NO3 concentration from wintertime values were used to calculate the equivalent biological drawdown of dissolved inorganic carbon (DICequiv). The fraction of DICequiv drawdown resulting in net DOC production was relatively constant (ca. 11%), despite large temporal and spatial variability in DICequiv drawdown. The C : N (molar ratio) of the seasonally produced DOM had a geometric mean of 6.2 and was nitrogen-rich compared to background DOM. The DOM stocks that accumulate in excess of deep refractory background stocks are often referred to as "semi-labile" DOM. The "semi-labile" pool in the Ross Sea turns over on timescales of about 6 months. As a result of the modest net DOM production and its lability, the role DOM plays in export to the deep sea is small in this region. Dataset Antarc* Antarctica Ross Sea PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(163.300000,-174.000000,-65.010000,-78.040000) |