Dataset: Cryptic N: Seasonal STE Profiles

Name: Biogeochemical data collected from porewater profiles within a shallow, sandy subterranean estuary (STE) in Virginia USA, from 2018 - 2020
Published: 2022-11-24
Keywords: porewater, sandy subterranean estuary, profiles, oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.807664.2

Spatial Extent: N:37.248884 E:-76.505324 S:37.248884 W:-76.505324

Temporal Extent: 2018-04-09 - 2019-01-15

Project:

Collaborative Research: Cryptic nitrogen cycling in the anoxic subterranean estuary (Subsurface cryptic N cycle)

Principal Investigator:

Bongkeun Song (Virginia Institute of Marine Science, VIMS)

Co-Principal Investigator:

Iris C. Anderson (Virginia Institute of Marine Science, VIMS)

Student:

Stephanie J. Wilson (Virginia Institute of Marine Science, VIMS)

Contact:

Stephanie J. Wilson (Virginia Institute of Marine Science, VIMS)

BCO-DMO Data Manager:

Danie Kinkade (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Karen Soenen (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2022-11-24

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Biogeochemical data collected from porewater profiles within a shallow, sandy subterranean estuary (STE) in Virginia USA, from 2018 - 2020

Abstract:

These data were collected during 2018-2020 from a sandy subterranean estuary (STE) located in Gloucester Point, Virginia, USA. Several campaigns were conducted to collect porewater across seasonal, tidal, and spatial scales. Porewater samples were collected from dedicated piezometers at depths ranging from 10 centimeters to 300 centimeters deep in the STE.

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2022-11-03	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.807664.2	2022-11-24
2021-04-26	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.807664.1	2021-06-16

Methods & Sampling

Porewater samples were collected using a peristaltic pump to pull water from each piezometer. Temperature, salinity, and pH were collected using a flow-through cell and a YSI. Nutrient samples were filtered with a 0.45 uM filter and kept on ice until frozen for later analysis. DIC samples were fixed using HgCl in exetainer tubes and kept under water until analysis. Sulfide samples were fixed with Zinc Acetate for later calorimetric analysis.

Data Processing Description

Nutrient samples were analyzed on a Lachat QuikChem 8000 automated ion analyzer Lachat In- struments, Milwaukee, WI, USA; detection limits for NO3−, NH4 +, and PO43− are 0.20, 0.36, and 0.16 μM, respectively. Dissolved organic Carbon samples were analyzed using a Shimadzu TOC 5000 total organic carbon analyzer. Porewater sulfide were analyzed using a spectrophotometer. BCO-DMO Processing Notes: - Ran through Laminar processing software, and set data types. - Location field was split into individual latitude and longitude fields with sign designations for direction, and added to data. - Standardized ISODateTime field was constructed from supplied date and time fields and added to data - Parameter names were edited to conform to BCO-DMO convensions (inserted underscores for spaces in parameter names)

Data Files

File
profiles_2018_2019_2022.csv (Comma Separated Values (.csv), 28.13 KB) MD5:7f12e7165d71c42f7061634f8efd942d Primary data file for dataset ID 807664

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1657801
NSF Division of Ocean Sciences	OCE-1658135

Deployments

None available yet

Instruments

Flow Injection Analyzer

Supplied Name: automated ion analyzer

Supplied Description:

Lachat QuikChem 8000 automated ion analyzer Lachat In- struments, Milwaukee, WI, USA; detection limits for NO3−, NH4 +, and PO43− are 0.20, 0.36, and 0.16 μM, respectively

Instrument Type

Generic Name: Flow Injection Analyzer

Acronym: FIA

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB36/

Generic Description:

An instrument that performs flow injection analysis. Flow injection analysis (FIA) is an approach to chemical analysis that is accomplished by injecting a plug of sample into a flowing carrier stream. FIA is an automated method in which a sample is injected into a continuous flow of a carrier solution that mixes with other continuously flowing solutions before reaching a detector. Precision is dramatically increased when FIA is used instead of manual injections and as a result very specific FIA systems have been developed for a wide array of analytical techniques.

Spectrophotometer

Supplied Name: spectrophotometer

Supplied Description:

Instrument Type

Generic Name: Spectrophotometer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB20/

Generic Description:

An instrument used to measure the relative absorption of electromagnetic radiation of different wavelengths in the near infra-red, visible and ultraviolet wavebands by samples.

Total Organic Carbon Analyzer

Supplied Name: total organic carbon analyzer

Supplied Description:

Shimadzu TOC 5000 total organic carbon analyzer

Instrument Type

Generic Name: Total Organic Carbon Analyzer

Acronym: TOC analyzer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB04/

Generic Description:

A unit that accurately determines the carbon concentrations of organic compounds typically by detecting and measuring its combustion product (CO2). See description document at: http://bcodata.whoi.edu/LaurentianGreatLakes_Chemistry/bs116.pdf

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
Location	geographic position of sampling site given in latitude and longitude	decimal degrees	sample_descrip
Depth	Depth of porewater collection	cm	depth_bsf
Season	sampling season	unitless	season
Date	sampling date	unitless	date
Time	time of sample collection	unitless	time
Tidal_Stage	text description of stage of tidal cycle (i.e. low high)	unitless	site_descrip
Temperature	porewater temperature	degrees Celsius	temperature
Salinity	salinity	unitless	sal
pH	porewater pH	unitless	pH
DO	Porewater dissolved oxygen	uM	O2
NO3	Porewater Nitrate	uM	NO3
NO2	Porewater Nitrite	uM	NO2
NH4	Porewater Ammonium	uM	NH4
DIP	Porewater Phosphate	uM	DIP
DIC	Porewater Dissolved Inorganic Carbon	uM	DIC
DOC	Porewater Dissolved Organic Carbon	uM	DOC
DON	Porewater Dissolved Organic Nitrogen	uM	DON
H2S	Porewater Sulfide	uM	sulfide
Latitude	latitude component of geographic location where positive is north	decimal degrees	lat
Longitude	longitude component of geographic location where positive is east	decimal degrees	lon
ISO_DateTime_UTC	Date and time (UTC) in ISO8601 format: YYYY-MM-DDThh:mm:ssZ Format: %Y-%m-%dT%H:%M:%SZ	unitless	ISO_DateTime_UTC
Sampling_Campaign	Indicates whether the sample was collected as a part of the tidal variation campaign (Tidal, porewater collected at high, mid, and low tide on the same day), the spatial variation campaign (Spatial, porewater collected from triplicate profiles on the same day at low tide) , or part of the seasonal sampling effort (nd, samples collected at low tide).	unitless	sample_descrip
Tidal_Stage_Location	Indicates the location of the dedicated piezometers sampled. In addition to the piezometers located at the mid tide line which were sampled during all other campaigns, piezometers located at the low tide line of the Gloucester Point Beach were also sampled during the tidal variation campaign.	unitless	sample_descrip

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Dataset: Cryptic N: Seasonal STE Profiles