(Table 2) Comparison of surface chlorophyll a concentrations determined by satellite and expedition data in the Southern Ocean and the East Antarctic seas in February-April 2000
In February and April 2000, in the Southern Ocean between Africa and Antarctica, concentration of chlorophyll (Cchs) in the surface layer was not high (0.1-0.3 mg/m**3). Zones of increased Cchs values (0.6-2.0 and over 2.0 mg/m**3) were located between the Southern Subtropical and Subantarctic front...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.726477 2024-09-15T17:48:06+00:00 (Table 2) Comparison of surface chlorophyll a concentrations determined by satellite and expedition data in the Southern Ocean and the East Antarctic seas in February-April 2000 Demidov, A B Vedernikov, Vladimir I Sheberstov, S V MEDIAN LATITUDE: -63.957000 * MEDIAN LONGITUDE: 45.460500 * SOUTH-BOUND LATITUDE: -68.820000 * WEST-BOUND LONGITUDE: -0.390000 * NORTH-BOUND LATITUDE: -48.610000 * EAST-BOUND LONGITUDE: 91.920000 * DATE/TIME START: 2000-02-08T00:00:00 * DATE/TIME END: 2000-04-08T00:00:00 2007 text/tab-separated-values, 60 data points https://doi.pangaea.de/10.1594/PANGAEA.726477 https://doi.org/10.1594/PANGAEA.726477 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.726477 https://doi.org/10.1594/PANGAEA.726477 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow Supplement to: Demidov, A B; Vedernikov, Vladimir I; Sheberstov, S V (2007): Spatiotemporal variability of chlorophyll a in the Atlantic and Indian sectors of the Southern Ocean during February-April of 2000 according to satellite and expeditionary data. Oceanology, 47(4), 507-518, https://doi.org/10.1134/S000143700704008X AF-16 AF-16-10pp AF-16-12pp AF-16-14pp AF-16-15pp AF-16-18pp AF-16-1pp AF-16-20pp AF-16-2pp AF-16-36pp AF-16-37pp AF-16-3pp AF-16-42pp AF-16-43pp AF-16-44pp AF-16-52pp AF-16-54pp AF-16-56pp AF-16-5pp AF-16-7pp AF-16-9pp Akademik Fedorov Archive of Ocean Data ARCOD BUCKET Bucket water sampling Calculated Chlorophyll a Cosmonauts Sea Error relative Event label Latitude of event Longitude of event SeaWiFS color scanner Spectrophotometry dataset 2007 ftpangaea https://doi.org/10.1594/PANGAEA.72647710.1134/S000143700704008X 2024-07-24T02:31:30Z In February and April 2000, in the Southern Ocean between Africa and Antarctica, concentration of chlorophyll (Cchs) in the surface layer was not high (0.1-0.3 mg/m**3). Zones of increased Cchs values (0.6-2.0 and over 2.0 mg/m**3) were located between the Southern Subtropical and Subantarctic fronts, near the Polar front, and to the south of the Antarctic Divergence. From February to April, in open areas of the Southern Ocean, a general Cchs decrease was observed. A similar trend was also noted in near-shore seas of the East Antarctic. At the shelf of the Sea of Cosmonauts, within the upper mixed layer, the content of chlorophyll amounted to 0.34-0.37 mg/m**3 . In the area of the continental slope, we registered formation of a subsurface chlorophyll maximum (0.52-0.56 mg/m**3) at 20 m depth, which deepened to 70 m when passing to the deepwater area. The positive correlation with a high coefficient (r = 0.939) between the field and satellite data (Cchs and Csat, respectively) allows one to conclude about applicability of the SeaWiFS algorithm for estimation of chlorophyll content within the surface layer in the Antarctic areas studied. In the course of ice formation in Prydz Bay, during five days, content of chlorophyll in different phases of new ice increased by a factor of 2.9, whereas values of this parameter in the surrounding waters remained quite invariable. The Csat values were 6.3 times as high as those obtained experimentally for sludge ice. Because of large areas occupied by floating ice, the sole usage of satellite data may cause great errors in productivity estimation of for the East Antarctic seas. Dataset Antarc* Antarctic Antarctica Cosmonauts sea Prydz Bay Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-0.390000,91.920000,-48.610000,-68.820000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AF-16 AF-16-10pp AF-16-12pp AF-16-14pp AF-16-15pp AF-16-18pp AF-16-1pp AF-16-20pp AF-16-2pp AF-16-36pp AF-16-37pp AF-16-3pp AF-16-42pp AF-16-43pp AF-16-44pp AF-16-52pp AF-16-54pp AF-16-56pp AF-16-5pp AF-16-7pp AF-16-9pp Akademik Fedorov Archive of Ocean Data ARCOD BUCKET Bucket water sampling Calculated Chlorophyll a Cosmonauts Sea Error relative Event label Latitude of event Longitude of event SeaWiFS color scanner Spectrophotometry |
spellingShingle |
AF-16 AF-16-10pp AF-16-12pp AF-16-14pp AF-16-15pp AF-16-18pp AF-16-1pp AF-16-20pp AF-16-2pp AF-16-36pp AF-16-37pp AF-16-3pp AF-16-42pp AF-16-43pp AF-16-44pp AF-16-52pp AF-16-54pp AF-16-56pp AF-16-5pp AF-16-7pp AF-16-9pp Akademik Fedorov Archive of Ocean Data ARCOD BUCKET Bucket water sampling Calculated Chlorophyll a Cosmonauts Sea Error relative Event label Latitude of event Longitude of event SeaWiFS color scanner Spectrophotometry Demidov, A B Vedernikov, Vladimir I Sheberstov, S V (Table 2) Comparison of surface chlorophyll a concentrations determined by satellite and expedition data in the Southern Ocean and the East Antarctic seas in February-April 2000 |
topic_facet |
AF-16 AF-16-10pp AF-16-12pp AF-16-14pp AF-16-15pp AF-16-18pp AF-16-1pp AF-16-20pp AF-16-2pp AF-16-36pp AF-16-37pp AF-16-3pp AF-16-42pp AF-16-43pp AF-16-44pp AF-16-52pp AF-16-54pp AF-16-56pp AF-16-5pp AF-16-7pp AF-16-9pp Akademik Fedorov Archive of Ocean Data ARCOD BUCKET Bucket water sampling Calculated Chlorophyll a Cosmonauts Sea Error relative Event label Latitude of event Longitude of event SeaWiFS color scanner Spectrophotometry |
description |
In February and April 2000, in the Southern Ocean between Africa and Antarctica, concentration of chlorophyll (Cchs) in the surface layer was not high (0.1-0.3 mg/m**3). Zones of increased Cchs values (0.6-2.0 and over 2.0 mg/m**3) were located between the Southern Subtropical and Subantarctic fronts, near the Polar front, and to the south of the Antarctic Divergence. From February to April, in open areas of the Southern Ocean, a general Cchs decrease was observed. A similar trend was also noted in near-shore seas of the East Antarctic. At the shelf of the Sea of Cosmonauts, within the upper mixed layer, the content of chlorophyll amounted to 0.34-0.37 mg/m**3 . In the area of the continental slope, we registered formation of a subsurface chlorophyll maximum (0.52-0.56 mg/m**3) at 20 m depth, which deepened to 70 m when passing to the deepwater area. The positive correlation with a high coefficient (r = 0.939) between the field and satellite data (Cchs and Csat, respectively) allows one to conclude about applicability of the SeaWiFS algorithm for estimation of chlorophyll content within the surface layer in the Antarctic areas studied. In the course of ice formation in Prydz Bay, during five days, content of chlorophyll in different phases of new ice increased by a factor of 2.9, whereas values of this parameter in the surrounding waters remained quite invariable. The Csat values were 6.3 times as high as those obtained experimentally for sludge ice. Because of large areas occupied by floating ice, the sole usage of satellite data may cause great errors in productivity estimation of for the East Antarctic seas. |
format |
Dataset |
author |
Demidov, A B Vedernikov, Vladimir I Sheberstov, S V |
author_facet |
Demidov, A B Vedernikov, Vladimir I Sheberstov, S V |
author_sort |
Demidov, A B |
title |
(Table 2) Comparison of surface chlorophyll a concentrations determined by satellite and expedition data in the Southern Ocean and the East Antarctic seas in February-April 2000 |
title_short |
(Table 2) Comparison of surface chlorophyll a concentrations determined by satellite and expedition data in the Southern Ocean and the East Antarctic seas in February-April 2000 |
title_full |
(Table 2) Comparison of surface chlorophyll a concentrations determined by satellite and expedition data in the Southern Ocean and the East Antarctic seas in February-April 2000 |
title_fullStr |
(Table 2) Comparison of surface chlorophyll a concentrations determined by satellite and expedition data in the Southern Ocean and the East Antarctic seas in February-April 2000 |
title_full_unstemmed |
(Table 2) Comparison of surface chlorophyll a concentrations determined by satellite and expedition data in the Southern Ocean and the East Antarctic seas in February-April 2000 |
title_sort |
(table 2) comparison of surface chlorophyll a concentrations determined by satellite and expedition data in the southern ocean and the east antarctic seas in february-april 2000 |
publisher |
PANGAEA |
publishDate |
2007 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.726477 https://doi.org/10.1594/PANGAEA.726477 |
op_coverage |
MEDIAN LATITUDE: -63.957000 * MEDIAN LONGITUDE: 45.460500 * SOUTH-BOUND LATITUDE: -68.820000 * WEST-BOUND LONGITUDE: -0.390000 * NORTH-BOUND LATITUDE: -48.610000 * EAST-BOUND LONGITUDE: 91.920000 * DATE/TIME START: 2000-02-08T00:00:00 * DATE/TIME END: 2000-04-08T00:00:00 |
long_lat |
ENVELOPE(-0.390000,91.920000,-48.610000,-68.820000) |
genre |
Antarc* Antarctic Antarctica Cosmonauts sea Prydz Bay Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Cosmonauts sea Prydz Bay Southern Ocean |
op_source |
P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow Supplement to: Demidov, A B; Vedernikov, Vladimir I; Sheberstov, S V (2007): Spatiotemporal variability of chlorophyll a in the Atlantic and Indian sectors of the Southern Ocean during February-April of 2000 according to satellite and expeditionary data. Oceanology, 47(4), 507-518, https://doi.org/10.1134/S000143700704008X |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.726477 https://doi.org/10.1594/PANGAEA.726477 |
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.72647710.1134/S000143700704008X |
_version_ |
1810289144913461248 |