Citation:

PANGAEA.761718

Name: Hydrochemistry measured on water bottle samples during TYDEMAN cruise DCM
Published: 1996
License: https://creativecommons.org/licenses/by/3.0/

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Published: 1996 (exact date unknown) • DOI registered: 2011-07-13

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Project(s):

Joint Global Ocean Flux Study (JGOFS)

Coverage:

Median Latitude: 22.278715 * Median Longitude: -37.886248 * South-bound Latitude: 7.418333 * West-bound Longitude: -53.893333 * North-bound Latitude: 33.973333 * East-bound Longitude: -21.650000

Date/Time Start: 1996-07-26T09:18:00 * Date/Time End: 1996-08-28T06:11:00

Minimum DEPTH, water: 3.97 m * Maximum DEPTH, water: 4927.99 m

Event(s):

DCM2-1 * Latitude: 7.418333 * Longitude: -53.893333 * Date/Time: 1996-07-26T09:18:00 * Campaign: (DeepChlorMax) * Basis: * Method/Device: (CTD-RO)

DCM3-1 * Latitude: 7.618333 * Longitude: -53.761667 * Date/Time: 1996-07-26T11:20:00 * Campaign: (DeepChlorMax) * Basis: * Method/Device: (CTD-RO)

DCM4-1 * Latitude: 7.861667 * Longitude: -53.606667 * Date/Time: 1996-07-26T13:27:00 * Campaign: (DeepChlorMax) * Basis: * Method/Device: (CTD-RO)

Comment:

Marine sediments for determination of organic carbon and nitrogen was collected using paired funnel-shaped traps (0.0314 m**2 opening) suspending on buoys at two depths. One set of traps was deployed at 300 m, the other ones just below the chlorophyll maximum. After 24 hours traps were recovered and the marine sediment filtered on pre-combusted GF/C filters and stored at -20°C. Organic carbon was determined after removing carbonate carbon by acidification with sulfurous acid.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	Date/Time of event	Date/Time
3	Latitude of event	Latitude
4	Longitude of event	Longitude
5	DEPTH, water	Depth water	m			Geocode
6	Pressure, water	Press	dbar	Veldhuis, Marcel J W
7	Temperature, water	Temp	°C	Veldhuis, Marcel J W	CTD
8	Salinity	Sal		Veldhuis, Marcel J W	CTD
9	Temperature, water, potential	Tpot	°C	Veldhuis, Marcel J W	Calculated
10	Density, sigma-theta (0)	Sigma-theta	kg/m³	Veldhuis, Marcel J W	Calculated
11	Density, mass density	Density	kg/m³	Veldhuis, Marcel J W	Calculated
12	Oxygen	O2	µmol/l	Veldhuis, Marcel J W	CTD with attached oxygen sensor
13	Silicate	Si(OH)4	µmol/l	Bakker, Karel	Seawater analysis (Strickland & Parsons, 1972)
14	Phosphate	[PO4]3-	µmol/l	Bakker, Karel	Determination of phosphate (Murphy & Riley, 1962)
15	Nitrate	[NO3]-	µmol/l	Bakker, Karel	Seawater analysis after Grasshoff et al., 1983 (Verlag Chemie GmbH Weinheim)
16	Nitrite	[NO2]-	µmol/l	Bakker, Karel	Seawater analysis after Grasshoff et al., 1983 (Verlag Chemie GmbH Weinheim)
17	Ammonium	[NH4]+	µmol/l	Bakker, Karel	after Helder & Vries, 1979
18	Radiation, photosynthetically active	PAR	µmol/m²/s	Hiehle, M A
19	Carbon, organic, dissolved	DOC	µmol/l	Gonzalez, Santiago
20	Carbon, organic, particulate	POC	µg/l	Veldhuis, Marcel J W
21	Chlorophyll a	Chl a	µg/l	Veldhuis, Marcel J W
22	Fluorescence	Fluorescence	arbitrary units	Veldhuis, Marcel J W	Fluorometer, Chelsea Instruments
23	Bottle number	Bottle

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

49039 data points

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