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  • 14C uptake; Ammonium; Bacteria; Calculated; Carbon, organic, particulate; Carbon/nitrogen analyser (GF/F filtered); Chemiluminescence (NO2/NO3); Chlorophyll a; Chlorophyll a, fluorometric determination (Grasshoff et al., 1983, Chemie GmbH); Colorometric analysis, manual; Continuous Flow Automated Analysis (Gordon et al., 1993, WOCE Tech Rpt 93-1); CTD; CTD/Rosette; CTD-RO; Cyanobacteria; Date/Time of event; Density, sigma-theta (0); DEPTH, water; Elevation of event; Epifluorescence microscopy; Eukaryotes; Event label; Gravimetric analysis (GF/F filtered); JGOFS; Joint Global Ocean Flux Study; Latitude of event; Longitude of event; M10/1; M10/1-CTD-239_045; M10/1-CTD-241_047; M10/1-CTD-242_048; M10/1-CTD-245_050; M10/1-CTD-247_052; M10/1-CTD-249_053; M10/1-CTD-252_056; M10/1-CTD-254_058; M10/1-CTD-258_064; M10/1-CTD-260_067; M10/1-CTD-264_075; M10/1-CTD-266_076; M10/1-CTD-270_078; M10/1-CTD-273_079; M10/1-CTD-274_080; M10/1-CTD-277_081; M10/1-CTD-279_083; M10/1-CTD-282_085; M10/1-CTD-283_086; M10/1-CTD-286_089; M10/1-CTD-287_090; M10/1-CTD-290_093; M10/1-CTD-291_095; M10/1-CTD-292_098; M10/1-CTD-295_101; M10/1-CTD-358_164; M10/1-CTD-359_165; M10/1-CTD-361_166; M10/1-CTD-362_168; M10/1-CTD-364_170; M10/1-CTD-366_171; M10/1-CTD-369_174; M10/1-CTD-370_180; M10/1-CTD-374_183; M10/1-CTD-376_185; M10/1-CTD-380_190; M10/1-CTD-382_191; M10/1-CTD-383_193; M10/1-CTD-385_195; M10/1-CTD-387_196; M10/1-CTD-390_200; M10/1-CTD-392_201; M10/1-CTD-396_206; M10/1-CTD-398_208; M10/1-CTD-401_212; M10/1-CTD-403_214; M10/1-CTD-403_508; M10/1-CTD-403_509; M10/1-CTD-406_218; M10/1-CTD-410_219; M10/1-CTD-414_220; M10/1-CTD-418_221; M10/1-CTD-422_222; M10/1-CTD-426_223; Meteor (1986); NABE; Nanoflagellates, heterotrophic; Nitrate and Nitrite; Nitrite; Nitrogen, organic, particulate; North Atlantic Bloom Experiment, 1989-1991; Optical microscopy; Oxygen; Oxygen, Winkler (Culberson, 1991, WOCE Report 68/91); Phosphate; Primary production of carbon per hour; Salinity; Silicate; Suspended matter, total; Temperature, water  (1)
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  • 1
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    Unknown
    Physical oceanography and hydrochemistry measured on water bottle samples during METEOR cruise M10/1 (1993)
    PANGAEA
    In:  Supplement to: Koeve, Wolfgang; Eppley, Richard W; Podewski, Sigrid; Zeitzschel, Bernt (1993): An unexpected nitrate distribution in the tropical North Atlantic at 18°N, 30°W - implications for new production. Deep Sea Research Part II: Topical Studies in Oceanography, 40(1-2), 521-536, https://doi.org/10.1016/0967-0645(93)90030-Q
    Details
    Publication Date: 2024-02-02
    Description: During a R.V. Meteor JGOFS-NABE cruise to a tropical site in the northeast Atlantic in spring 1989, three different vertical regimes with respect to nitrate distribution and availability within the euphotic zone were observed. Besides dramatic variations in the depth of the nitracline, a previously undescribed nose-like nitrate maximum within the euphotic zone was the most prominent feature during this study. Both the vertical structure of phytoplankton biomass and the degree of absolute and relative new production were related to the depth of the nitracline, which in turn was dependent on the occurrence/non-occurrence of the subsurface subtropical salinity maximum (Smax). The mesoscale variability of the nitracline depth, as indicated from a pre-survey grid, and published data on the frequent occurrence of the Smax in tropical waters suggest higher variability of new production and F-ratio than usually expected for oligotrophic oceans. The importance of salt fingering and double diffusion for nitrate transport into the euphotic zone is discussed.
    Keywords: 14C uptake; Ammonium; Bacteria; Calculated; Carbon, organic, particulate; Carbon/nitrogen analyser (GF/F filtered); Chemiluminescence (NO2/NO3); Chlorophyll a; Chlorophyll a, fluorometric determination (Grasshoff et al., 1983, Chemie GmbH); Colorometric analysis, manual; Continuous Flow Automated Analysis (Gordon et al., 1993, WOCE Tech Rpt 93-1); CTD; CTD/Rosette; CTD-RO; Cyanobacteria; Date/Time of event; Density, sigma-theta (0); DEPTH, water; Elevation of event; Epifluorescence microscopy; Eukaryotes; Event label; Gravimetric analysis (GF/F filtered); JGOFS; Joint Global Ocean Flux Study; Latitude of event; Longitude of event; M10/1; M10/1-CTD-239_045; M10/1-CTD-241_047; M10/1-CTD-242_048; M10/1-CTD-245_050; M10/1-CTD-247_052; M10/1-CTD-249_053; M10/1-CTD-252_056; M10/1-CTD-254_058; M10/1-CTD-258_064; M10/1-CTD-260_067; M10/1-CTD-264_075; M10/1-CTD-266_076; M10/1-CTD-270_078; M10/1-CTD-273_079; M10/1-CTD-274_080; M10/1-CTD-277_081; M10/1-CTD-279_083; M10/1-CTD-282_085; M10/1-CTD-283_086; M10/1-CTD-286_089; M10/1-CTD-287_090; M10/1-CTD-290_093; M10/1-CTD-291_095; M10/1-CTD-292_098; M10/1-CTD-295_101; M10/1-CTD-358_164; M10/1-CTD-359_165; M10/1-CTD-361_166; M10/1-CTD-362_168; M10/1-CTD-364_170; M10/1-CTD-366_171; M10/1-CTD-369_174; M10/1-CTD-370_180; M10/1-CTD-374_183; M10/1-CTD-376_185; M10/1-CTD-380_190; M10/1-CTD-382_191; M10/1-CTD-383_193; M10/1-CTD-385_195; M10/1-CTD-387_196; M10/1-CTD-390_200; M10/1-CTD-392_201; M10/1-CTD-396_206; M10/1-CTD-398_208; M10/1-CTD-401_212; M10/1-CTD-403_214; M10/1-CTD-403_508; M10/1-CTD-403_509; M10/1-CTD-406_218; M10/1-CTD-410_219; M10/1-CTD-414_220; M10/1-CTD-418_221; M10/1-CTD-422_222; M10/1-CTD-426_223; Meteor (1986); NABE; Nanoflagellates, heterotrophic; Nitrate and Nitrite; Nitrite; Nitrogen, organic, particulate; North Atlantic Bloom Experiment, 1989-1991; Optical microscopy; Oxygen; Oxygen, Winkler (Culberson, 1991, WOCE Report 68/91); Phosphate; Primary production of carbon per hour; Salinity; Silicate; Suspended matter, total; Temperature, water
    Type: Dataset
    Format: text/tab-separated-values, 3726 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
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