Dataset: Dorado 2014: OsmoSampler fluid chemistry
Deployment: AT26-09

Spring and pore fluid chemistry from samples taken by OsmoSamplers

Principal Investigator:

C. Geoffrey Wheat (University of Alaska Fairbanks, UAF)

Co-Principal Investigator:

Andrew Fisher (University of California-Santa Cruz, UCSC)

Samuel Hulme (Moss Landing Marine Laboratories, MLML)

James McManus (University of Akron, UAkron)

Beth N. Orcutt (Bigelow Laboratory for Ocean Sciences)

Contact:

C. Geoffrey Wheat (University of Alaska Fairbanks, UAF)

BCO-DMO Data Manager:

Amber D. York (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Discovery, sampling, and quantification of flows from cool yet massive ridge-flank hydrothermal springs on Dorado Outcrop, eastern Pacific Ocean (Dorado Outcrop)

Version Date:

2016-10-27

Data URL:

https://www.bco-dmo.org/dataset-deployment/663204/data

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Description

This dataset contains chemistry from fluid samples collected by OsmoSamplers including, dissolved inorganic carbon (DIC), the stable carbon isotope ratio of dissolved inorganic carbon (13C:12C ratio in DIC). It also contains concentrations of V, Rb, Mo, Cs, Ba, U, Si, Sr, Li, S, Na, Ca, Mg, and K. Samples were collected at the Dorado Outcrop during the R/V Atlantis cruise AT26-24.

Methods & Sampling

Dataset acquisition description

Continuous fluid samplers (OsmoSamplers) included a 12-membrane pump and one coil of Teflon tubing that was 300-m-long and small bore (1.1 mm ID). The tubing was initially filled with 18 MΩ distilled water. Upon retrieval, the Teflon coil was cut in 1.1 m lengths and the fluid was expelled into hot acid cleaned plastic microcentrifuge tubes. For more information about OsmoSamplers see the instruments page.

The R/V Atlantis cruise AT26-09 (2013 Jason/Sentry Expedition) deployed the OsmoSamplers. They were deployed for almost a full year. The R/V Atlantis cruise AT26-24 recovered the OsmoSamplers. Dorado Outcrop is off the west coast of Costa Rica in the Pacific Ocean at location 9 degrees 5.5 minutes north, 87 degrees 6.0 minutes west. For more information about operations of this cruise see the expedition reports and cruise information (AT26-24, AT26-09).

Data Processing Description

Dataset Processing Description

Other than converting signal counts, voltages, etc. to concentrations, the data have not been processed further.

BCO-DMO Processing Notes:

* added conventional header with dataset name, PI name, version date
* modified parameter names to conform with BCO-DMO naming conventions
* added fields for OsmoSampler_name, date_deployed, date_recovered, location (e.g. Marker_K) from information in comments of original files submitted.
* Date format converted to ISO Date format

Deployment-specific processing description

Deployed OsmoSamplers.

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1130146	NSF Division of Ocean Sciences
OCE-1131210	NSF Division of Ocean Sciences

Instruments

osmotic pump

Supplied Name: OsmoSampler

Supplied Description:

OsmoSamplers are long-term osmotically pumped fluid samplers. For more information see the following reference:

Jannasch Hans W. , Wheat C. Geoff , Plant Josh N. , Kastner Miriam , Stakes Debra S. , (2004),Continuous chemical monitoring with osmotically pumped water samplers: OsmoSampler design and applications, Limnol. Oceanogr. Methods, 2, doi:10.4319/lom.2004.2.102.

Instrument Type

Generic Name: osmotic pump

Generic Description:

A pump that uses osmotic pressure to collect water samples.

An example of an osmotic pump is an OsmoSampler (Jannasch et al., 2004) which has no electrical or mechanical parts.

References:

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
OsmoSampler_name	Name of the OsmoSampler Instrument	unitless	instrument
date_deployed	Date of OsmoSampler deployment in ISO format YYYY-mm-dd	unitless	date
date_recovered	Date of OsmoSampler recovery in ISO format YYYY-mm-dd	unitless	date
location	Location of deployment	unitless	site
sample_num	Sample number	unitless	sample
date_calculated	Date of chemical analysis in ISO format YYYY-mm-dd	unitless	date
DIC	Dissolved inorganic carbon	millimoles per liter (mM)	DIC
DIC_stdev	Standard deviation of dissolved inorganic carbon	millimoles per liter (mM)	std_dev
d13C_DIC	Stable carbon isotope ratio of dissolved inorganic carbon (13C/12C ratio in DIC)	permille (o/oo)	d13C_DIC
d13C_DIC_stdev	Standard deviation of the stable carbon isotope ratio of dissolved inorganic carbon (13C/12C ratio in DIC)	permille (o/oo)	std_dev
V	Vanadium concentration	nanomoles per kilogram (nmol/kg)	V
Rb	Rubidium concentration	nanomoles per kilogram (nmol/kg)	Rb
Mo	Molybdenum concentration	nanomoles per kilogram (nmol/kg)	Mo
Cs	Cesium concentration	nanomoles per kilogram (nmol/kg)	Cs
Ba	Barium concentration	nanomoles per kilogram (nmol/kg)	Ba
U	Uranium concentration	nanomoles per kilogram (nmol/kg)	U
Si	Silicon concentration	micromoles per kilogram (umol/Kg)	Si
Sr	Strontium concentration	micromoles per kilogram (umol/Kg)	Sr
Li	Lithium concentration	micromoles per kilogram (umol/Kg)	Li
S	Sulfur concentration	nanomoles per kilogram (nmol/kg)	trace_element_conc
Na	Sodium concentration	nanomoles per kilogram (nmol/kg)	Na
Ca	Calcium concentration	nanomoles per kilogram (nmol/kg)	Ca
Mg	Magnesium concentration	nanomoles per kilogram (nmol/kg)	Mg
K	Potassium concentration	nanomoles per kilogram (nmol/kg)	K
lat_approx	Approximate latitude of sampling area Dorado Outcrop	decimal degrees	lat
lon_approx	Approximate longitude of sampling area Dorado Outcrop; west is negative	decimal degrees	lon

Database

Contribute Data

Dataset: Dorado 2014: OsmoSampler fluid chemistry
Deployment: AT26-09

Dataset acquisition description

Dataset Processing Description

Deployment-specific processing description

Database

Contribute Data

Dataset: Dorado 2014: OsmoSampler fluid chemistryDeployment: AT26-09

Dataset acquisition description

Dataset Processing Description

Deployment-specific processing description

Dataset: Dorado 2014: OsmoSampler fluid chemistry
Deployment: AT26-09