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     data   graph     files  public HS- and NH4+ porewater data from Little Lagoon, Alabama collected from 2012-2013.    ?     I   M   background (external link) RSS Subscribe BCO-DMO bcodmo_dataset_723975

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL access_formats String .htmlTable,.csv,.json,.mat,.nc,.tsv
attribute NC_GLOBAL acquisition_description String Little Lagoon is a shallow coastal lagoon that is tidally connected to the
Gulf of Mexico but has no riverine inputs. The water in the lagoon is
replenished solely from precipitation and groundwater inputs primarily on the
East end (Su et al. 2012). Because of the rapid development in Baldwin County,
a large amount of NO3- enters the Little Lagoon system through SGD (Murgulet &
Tick 2008). In this region, there can be rapid changes in the depth to
groundwater (Fig. 4.1 inset) and episodic SGD inputs to the lagoon (Su et
al.2013). Within the lagoon, three sites were selected (East, Mouth, and West)
to represent the gradient that exists across the lagoon from the input of
groundwater. Sites were sampled on a near-monthly basis from February 2012 to
February 2013.

Porewater Samples

At each site, point measurements of temperature, salinity, pH, and dissolved
oxygen (DO) were recorded with a YSI 556 Multiparameter Meter. Triplicate
sediment porewater samples were collected with a modified coring device (2.7
cm ID), sectioned at 10 mm intervals to 60 mm, and extracted in 10 mL of 1 M
NaCl (Smith & Caffrey 2009) prior to filtering and freezing. The filtered
(GF/F, 0.7 micron) supernatant was analyzed for DIN (NO2 -, NO3 -, NH4 +) and
phosphate (PO4 3-), and represents total extractable porewater nutrients.
Standard wet chemical techniques modified for the Skalar SAN+ Autoanalyzer
(Pennock & Cowan 2001) were performed for all nutrient concentration analysis.
Water column and sediment chlorophyll-\u03b1 content were determined
fluorometrically (Welschmeyer 1994) after cold extraction in 90% acetone from
filters and in triplicate, respectively.

Additional methodology can be found in:

Bernard, Rebecca & Mortazavi, Behzad & A. Kleinhuizen, Alice. (2015).
Dissimilatory nitrate reduction to ammonium (DNRA) seasonally dominates
NO3\u2212 reduction pathways in an anthropogenically impacted sub-tropical
coastal lagoon. Biogeochemistry. 125.
47-64.\u00a0[10.1007/s10533-015-0111-6](\\"https://www.researchgate.net/publication/282301597_Dissimilatory_nitrate_reduction_to_ammonium_DNRA_seasonally_dominates_NO3
-_reduction_pathways_in_an_anthropogenically_impacted_sub-
tropical_coastal_lagoon\\").\u00a0
attribute NC_GLOBAL awards_0_award_nid String 497637
attribute NC_GLOBAL awards_0_award_number String OCE-0962008
attribute NC_GLOBAL awards_0_data_url String http://nsf.gov/awardsearch/showAward?AWD_ID=0962008 (external link)
attribute NC_GLOBAL awards_0_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_0_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_0_funding_source_nid String 355
attribute NC_GLOBAL awards_0_program_manager String David L. Garrison
attribute NC_GLOBAL awards_0_program_manager_nid String 50534
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Porewater Data
B. Mortazavi and W. Burnett, PIs
Version 16 January 2018
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_email String info at bco-dmo.org
attribute NC_GLOBAL creator_name String BCO-DMO
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://www.bco-dmo.org/ (external link)
attribute NC_GLOBAL data_source String extract_data_as_tsv version 2.3 19 Dec 2019
attribute NC_GLOBAL date_created String 2018-01-17T20:11:54Z
attribute NC_GLOBAL date_modified String 2019-03-15T17:40:55Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.723975.1
attribute NC_GLOBAL geospatial_vertical_max double 60.0
attribute NC_GLOBAL geospatial_vertical_min double 0.0
attribute NC_GLOBAL geospatial_vertical_positive String down
attribute NC_GLOBAL geospatial_vertical_units String m
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/723975 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String Fluorometer
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Used to collected water column and sediment chlorophyll-a content
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 724412
attribute NC_GLOBAL instruments_0_description String A fluorometer or fluorimeter is a device used to measure parameters of fluorescence: its intensity and wavelength distribution of emission spectrum after excitation by a certain spectrum of light. The instrument is designed to measure the amount of stimulated electromagnetic radiation produced by pulses of electromagnetic radiation emitted into a water sample or in situ.
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/113/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String Fluorometer
attribute NC_GLOBAL instruments_0_instrument_nid String 484
attribute NC_GLOBAL instruments_0_supplied_name String Fluorometer
attribute NC_GLOBAL instruments_1_acronym String Multi Corer
attribute NC_GLOBAL instruments_1_dataset_instrument_description String Used to collected porewater samples
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 724411
attribute NC_GLOBAL instruments_1_description String The Multi Corer is a benthic coring device used to collect multiple, simultaneous, undisturbed sediment/water samples from the seafloor. Multiple coring tubes with varying sampling capacity depending on tube dimensions are mounted in a frame designed to sample the deep ocean seafloor. For more information, see Barnett et al. (1984) in Oceanologica Acta, 7, pp. 399-408.
attribute NC_GLOBAL instruments_1_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/51/ (external link)
attribute NC_GLOBAL instruments_1_instrument_name String Multi Corer
attribute NC_GLOBAL instruments_1_instrument_nid String 532
attribute NC_GLOBAL instruments_1_supplied_name String Modified coring device
attribute NC_GLOBAL keywords String ammonia, ammonium, bco, bco-dmo, biological, chemical, chemistry, concentration, data, dataset, date, depth, dmo, earth, Earth Science > Oceans > Ocean Chemistry > Ammonia, east, East_HS, East_NH4, erddap, julian, Julian_Date, management, mole, mole_concentration_of_ammonium_in_sea_water, mouth, Mouth_HS, Mouth_NH4, nh4, ocean, oceanography, oceans, office, preliminary, science, sea, seawater, water, west, West_HS, West_NH4, year
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/723975/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/723975 (external link)
attribute NC_GLOBAL param_mapping String {'723975': {'Depth': 'master - depth'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/723975/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String National Science Foundation
attribute NC_GLOBAL people_0_affiliation_acronym String NSF-DEB
attribute NC_GLOBAL people_0_person_name String Dr Behzad Mortazavi
attribute NC_GLOBAL people_0_person_nid String 491316
attribute NC_GLOBAL people_0_role String Principal Investigator
attribute NC_GLOBAL people_0_role_type String originator
attribute NC_GLOBAL people_1_affiliation String Florida State University
attribute NC_GLOBAL people_1_affiliation_acronym String FSU - EOAS
attribute NC_GLOBAL people_1_person_name String Dr William C. Burnett
attribute NC_GLOBAL people_1_person_nid String 491315
attribute NC_GLOBAL people_1_role String Co-Principal Investigator
attribute NC_GLOBAL people_1_role_type String originator
attribute NC_GLOBAL people_2_affiliation String National Science Foundation
attribute NC_GLOBAL people_2_affiliation_acronym String NSF-DEB
attribute NC_GLOBAL people_2_person_name String Dr Behzad Mortazavi
attribute NC_GLOBAL people_2_person_nid String 491316
attribute NC_GLOBAL people_2_role String Contact
attribute NC_GLOBAL people_2_role_type String related
attribute NC_GLOBAL people_3_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_3_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_3_person_name String Hannah Ake
attribute NC_GLOBAL people_3_person_nid String 650173
attribute NC_GLOBAL people_3_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_3_role_type String related
attribute NC_GLOBAL project String LittleLagoonGroundwater
attribute NC_GLOBAL projects_0_acronym String LittleLagoonGroundwater
attribute NC_GLOBAL projects_0_description String This project investigated the link between submarine groundwater discharge (SGD) and microalgal dynamics in Little Lagoon, Alabama.  In contrast to most near-shore environments, it is fully accessible; has no riverine inputs; and is large enough to display ecological diversity (c. 14x 0.75 km) yet small enough to be comprehensively sampled on appropriate temporal and spatial scales. The PIs have previously demonstrated that the lagoon is a hot-spot for toxic blooms of the diatom Pseudo-nitzchia spp. that are correlated with discharge from the surficial aquifer. This project assessed variability in SGD, the dependence of benthic nutrient fluxes on microphytobenthos (MPB) abundance and productivity, and the response of the phytoplankton to nutrient enrichment and dilution. The work integrated multiple temporal and spatial scales and demonstrated both the relative importance of SGD vs. benthic recycling as a source of nutrients, and the role of SGD in structuring the microalgal community. (paraphrased from Award abstract)
attribute NC_GLOBAL projects_0_end_date String 2014-08
attribute NC_GLOBAL projects_0_geolocation String southern Alabama, east of Mobile
attribute NC_GLOBAL projects_0_name String Groundwater Discharge, Benthic Coupling and Microalgal Community Structure in a Shallow Coastal Lagoon
attribute NC_GLOBAL projects_0_project_nid String 491318
attribute NC_GLOBAL projects_0_start_date String 2010-03
attribute NC_GLOBAL publisher_name String Biological and Chemical Oceanographic Data Management Office (BCO-DMO)
attribute NC_GLOBAL publisher_type String institution
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String HS- and NH4+ porewater data from Little Lagoon, Alabama collected from 2012-2013.
attribute NC_GLOBAL title String HS- and NH4+ porewater data from Little Lagoon, Alabama collected from 2012-2013.
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable Year   byte  
attribute Year _FillValue byte 127
attribute Year actual_range byte 1, 2
attribute Year bcodmo_name String unknown
attribute Year description String Year ID that samples were taken
attribute Year long_name String Year
attribute Year units String unitless
variable Date   String  
attribute Date bcodmo_name String date
attribute Date description String Month and day that samples were taken; MMM-DD
attribute Date long_name String Date
attribute Date nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/ (external link)
attribute Date units String unitless
variable Julian_Date   short  
attribute Julian_Date _FillValue short 32767
attribute Julian_Date actual_range short 54, 685
attribute Julian_Date bcodmo_name String unknown
attribute Julian_Date description String Julian date of sampling
attribute Julian_Date long_name String Julian Date
attribute Julian_Date units String unitless
variable depth   double  
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth _FillValue double NaN
attribute depth actual_range double 0.0, 60.0
attribute depth axis String Z
attribute depth bcodmo_name String depth
attribute depth colorBarMaximum double 8000.0
attribute depth colorBarMinimum double -8000.0
attribute depth colorBarPalette String TopographyDepth
attribute depth description String Depth of sampling
attribute depth ioos_category String Location
attribute depth long_name String Depth
attribute depth nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/DEPH/ (external link)
attribute depth positive String down
attribute depth standard_name String depth
attribute depth units String m
variable Mouth_HS   double  
attribute Mouth_HS _FillValue double NaN
attribute Mouth_HS actual_range double 0.0, 4518.2677
attribute Mouth_HS bcodmo_name String sulfide
attribute Mouth_HS description String Hydrogen sulfide porewater values taken at the site Mouth; location of site is 30.243683, -87.738407
attribute Mouth_HS long_name String Mouth HS
attribute Mouth_HS units String micromoles
variable East_HS   float  
attribute East_HS _FillValue float NaN
attribute East_HS actual_range float 0.0, 1275.3
attribute East_HS bcodmo_name String sulfide
attribute East_HS description String Hydrogen sulfide porewater values taken at the site East; location of site is 30.253347, -87.724729
attribute East_HS long_name String East HS
attribute East_HS units String micromoles
variable West_HS   double  
attribute West_HS _FillValue double NaN
attribute West_HS actual_range double 0.0, 3000.0
attribute West_HS bcodmo_name String sulfide
attribute West_HS description String Hydrogen sulfide porewater values taken at the site West; location of site is 30.247181, -87.767856
attribute West_HS long_name String West HS
attribute West_HS units String micromoles
variable East_NH4   float  
attribute East_NH4 _FillValue float NaN
attribute East_NH4 actual_range float 0.8108, 43.8701
attribute East_NH4 bcodmo_name String Ammonium
attribute East_NH4 colorBarMaximum double 5.0
attribute East_NH4 colorBarMinimum double 0.0
attribute East_NH4 description String Ammonium porewater values taken at the site East; location of site is 30.253347, -87.724729
attribute East_NH4 long_name String Mole Concentration Of Ammonium In Sea Water
attribute East_NH4 nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AMONAAZX/ (external link)
attribute East_NH4 units String micromoles
variable Mouth_NH4   float  
attribute Mouth_NH4 _FillValue float NaN
attribute Mouth_NH4 actual_range float 0.9709, 29.7798
attribute Mouth_NH4 bcodmo_name String Ammonium
attribute Mouth_NH4 colorBarMaximum double 5.0
attribute Mouth_NH4 colorBarMinimum double 0.0
attribute Mouth_NH4 description String Ammonium porewater values taken at the site Mouth; location of site is 30.243683, -87.738407
attribute Mouth_NH4 long_name String Mole Concentration Of Ammonium In Sea Water
attribute Mouth_NH4 nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AMONAAZX/ (external link)
attribute Mouth_NH4 units String micromoles
variable West_NH4   float  
attribute West_NH4 _FillValue float NaN
attribute West_NH4 actual_range float 0.9533, 74.353
attribute West_NH4 bcodmo_name String Ammonium
attribute West_NH4 colorBarMaximum double 5.0
attribute West_NH4 colorBarMinimum double 0.0
attribute West_NH4 description String West porewater values taken at the site West; location of site is 30.247181, -87.767856
attribute West_NH4 long_name String Mole Concentration Of Ammonium In Sea Water
attribute West_NH4 nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AMONAAZX/ (external link)
attribute West_NH4 units String micromoles

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.


 
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