http://lod.bco-dmo.org/id/dataset/840246
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2021-02-09
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Soil physicochemical properties of coastal wetland soil cores collected in June 2018 from Barataria Bay, Louisiana
2021-02-10
publication
2021-02-10
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2021-05-21
publication
https://doi.org/10.26008/1912/bco-dmo.840246.1
Lisa G. Chambers
University of Central Florida
principalInvestigator
Robert L. Cook
Louisiana State University
principalInvestigator
John R. White
Louisiana State University Dept. of Oceanography and Coastal Science
principalInvestigator
Zuo Xue
Louisiana State University Dept. of Oceanography and Coastal Science
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Steinmuller, H. E., White, J. R., Cook, R. L., Xue, Z., Chambers, L. G. (2021) Soil physicochemical properties of coastal wetland soil cores collected in June 2018 from Barataria Bay, Louisiana. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2021-02-10 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.840246.1 [access date]
Soil physicochemical properties of wetland soil cores (Barataria Bay, LA) Dataset Description: Methods and Sampling: <p>Nine coastal wetland soil cores were collected in June 2018 from Barataria Bay, Louisiana, a shallow open water basin located west of the Mississippi River Delta.&nbsp;&nbsp;Soil cores were collected along three transects, roughly 1 meter apart, that consisted of three points:&nbsp; the coastal fringe (0 m inland), 1 meter inland, and 2 meters inland. Soil cores were collected in polycarbonate&nbsp;tubes via the push core method to a depth of 150 cm, and field-extruded into 15 separate 10-cm intervals. Soils were stored&nbsp; in polyethylene bags on ice and immediately transported back to the laboratory, where they were kept at 4 °C until sample analysis was complete.&nbsp;</p>
<p>This dataset includes analyses of&nbsp;biogeochemical properties, organic matter fractionation, and stable isotope signatures.&nbsp;</p>
<p><strong>Moisture Content and Bulk Density</strong>: A subsample of soil was dried using a gravimetric oven at 70°C for 3 days or until a constant weight was achieved. Dried soils were ground using a SPEX Sample Prep 8000M Mixer/Mill (Metuchen, NJ).&nbsp;</p>
<p><strong>Total Carbon and Nitrogen content:&nbsp;</strong>&nbsp;%C and %N were&nbsp; determined using a Vario Micro Cube CHNS Analyzer on dried, ground subsamples.</p>
<p><strong>Organic Matter Content:</strong>&nbsp;Dried, ground sub- samples were used to determine percent organic matter using the loss- on-ignition method, where soils were burned at 550°C in a muffle furnace for a total of 3 hours</p>
<p><strong>Extractable Nitrate, Extractable Ammonium, Extractable&nbsp;Soluble Reactive Phosphorus:&nbsp; </strong>2.5 grams of wet soil (both from the field and from the bottle incubation) were placed into 40 mL centrifuge tubes and 25 mL of 2 M KCl was added. Samples were then shaken continuously on an orbital shaker for 1 hour at 25 °C and 150 rpm, then centrifuged for 10 minutes at 10 °C and 5000 rpm.&nbsp; Following the centrifuge step, samples were immediately filtered through Supor 0.45 μM filters and acidified with double distilled H2SO4 to a pH of &lt; 2 for preservation. Samples of Extractable nutrients&nbsp; were then analyzed using an AQ2 Automated Discrete Analyzer (Seal Analytical, Mequon, WI, EPA methods 231-A Rev.0, 210-A Rev.1, and 204-A Rev.0).</p>
<p><strong>Carbon and Nitrogen isotopes: </strong>Stable isotope analysis was performed at the Stable Isotope Mass Spectroscopy Laboratory, Department of Geological Sciences at the University of Florida.&nbsp; Dried, ground subsamples from only the 1 meter inland cores were initially combusted on a Carlo Erba NA1500 CNS elemental analyzer.&nbsp; Following the removal of oxygen and water from the sample gas, the stream was passed through a 0.7 m GC column (120 °C), which separated the N2 gas from CO2.&nbsp; Effluent then passed into a ConFlo II system, and into a Thermo Electron Delta V Advantage isotope ratio mass spectrometer, where sample gas was measured in relation to laboratory reference gases.&nbsp; Carbon isotope results are expressed in relation to Vienna PDB, in standard delta notation.</p>
<p><strong>Cellulose, Hemicellulose, and Refractory Carbon:&nbsp;</strong>Dried, ground subsamples were subjected to sequential extraction with H2SO4, following Rovira and Vallejo (2002) and Oades et al. (1970), with modifications.&nbsp; The first fraction is referred to hereafter as Labile Pool 1 (LP1) and consists of either plant- or microbially-derived non-cellulosic polysaccharides, including hemicellulose.&nbsp; Labile Pool 1 was extracted by adding 20 mL of 5 N H2SO4 into a 50 mL flask containing 0.5 grams of soil.&nbsp; The solution was heated for 30 minutes at 105 °C and subsequently allowed to cool.&nbsp; Samples were then filtered through Whatman #41 filters to separate particulates from the solution, and then diluted to a final volume of 50 mL.&nbsp; Labile Pool 2 (LP2), which consists of cellulose, was determined by adding 2 mL of 26 N H2SO4 to 0.5 grams of dried, ground soil.&nbsp; Samples were shaken at 100 rpm for 16 hours, then diluted to a final concentration of 2 N H2SO4 with deionized water.&nbsp; Samples were heated for 3 hours at 105°C, then filtered in the same manner as LP1.&nbsp; Determinations of LP1 and LP2 concentrations were conducted by use of a Shimadzu TOC-L (Shimadzu, Kyoto, Japan).&nbsp; The refractory pool was calculated as total soil C minus the sum of the labile pools.&nbsp; All pools were normalized to total soil C content.&nbsp;&nbsp;</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1635837 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1635837
completed
Lisa G. Chambers
University of Central Florida
407-823-2922
4000 Central Florida Blvd. Bldg. 20, BIO 301
Orlando
FL
32816
USA
lisa.chambers@ucf.edu
pointOfContact
Robert L. Cook
Louisiana State University
225-578-2980
Department of Chemistry 232 Choppin Hall
Baton Rouge
LA
70803
USA
rlcook@lsu.edu
pointOfContact
John R. White
Louisiana State University Dept. of Oceanography and Coastal Science
225-578-8792
3239 Energy, Coast & Environment Bldg
Baton Rouge
LA
70803
USA
jrwhite@lsu.edu
pointOfContact
Zuo Xue
Louisiana State University Dept. of Oceanography and Coastal Science
225-578-2760
3239 Energy, Coast & Environment Bldg
Baton Rouge
LA
70803
USA
zxue@lsu.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Distance
Rep
Depth
Moisture_pcnt
Bulk_Density
OM_pcnt
d15N
d13C
N_pcnt
C_pcnt
Extractable_Nitrate
Extractable_SRP
Extractable_Ammonium
Hemicellulose
Cellulose
Recalcitrant_Fraction
Latitude
Longitude
Date_collected
Carlo Erba NA1500 CNS elemental analyzer
ConFlo II system
AQ2 Automated Discrete Analyzer
gravimetric oven
Vario Micro Cube CHNS Analyzer
SPEX Sample Prep 8000M Mixer/Mill
Thermo Electron Delta V Advantage isotope ratio mass spectrometer
orbital shaker
Shimadzu TOC-L
theme
None, User defined
track length
replicate
depth
No BCO-DMO term
density_dry_bulk
Concentrations of biopolymers in sediments
d15N
d13C
Nitrogen
Elemental carbon (C)
Nitrate
SRP
Ammonium
latitude
longitude
date
featureType
BCO-DMO Standard Parameters
Carlo-Erba NA-1500 Elemental Analyzer
Centrifuge
Continuous Flow Interface for Mass Spectrometers
Discrete Analyzer
Drying Oven
Elemental Analyzer
Homogenizer
Isotope-ratio Mass Spectrometer
muffle furnace
Push Corer
Shaker
Shimadzu TOC-L Analyzer
instrument
BCO-DMO Standard Instruments
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
Fate of Coastal Wetland Carbon Under Increasing Sea Level Rise: Using the Subsiding Louisiana Coast as a Proxy for Future World-Wide Sea Level Projections
https://osprey.bco-dmo.org/project/670520
Fate of Coastal Wetland Carbon Under Increasing Sea Level Rise: Using the Subsiding Louisiana Coast as a Proxy for Future World-Wide Sea Level Projections
<p><em>Description from NSF award abstract:</em><br />
Coastal Louisiana is currently experiencing net sea level rise at rates higher than most of the world's coastlines and within the global range predicted to occur in the next 65 - 85 years, making Louisiana an ideal site to study potential future impacts of rising sea level on coastal systems. This project will use field collection and controlled tank experiments to study the changing organic carbon cycle resulting from erosion of marsh soils along with its impact on associated biogeochemical processes. The hypothesis tested in this study is that the majority of eroded soil organic carbon is converted to carbon dioxide (CO2) and released to the atmosphere, representing an addition to the anthropogenic input of CO2. This process has not been quantified and could be an important missing component in predictive models of atmospheric CO2 changes. While this process may be of only regional importance today in comparison to other sources of CO2, this study of the Louisiana coast will greatly enhance our full understanding of the potential impacts on the global carbon cycle that may result from coastal erosion as global sea level continues to rise.</p>
<p>The project will train graduate and undergraduate students in interdisciplinary research involving marine and wetland biogeochemistry, microbiology, and ecological modeling. It will also fund development of an interactive, educational display on the loss of coastal wetlands for the Louisiana Sea Grant's annual Ocean Commotion educational event attended by area middle and high school students, teachers, and parents. Results from this study may also inform community planners both regionally and worldwide as they prepare for sea level rise in coastal communities.</p>
<p>Eustatic sea level rise and regional subsidence have created a much greater rate of coastline loss in Louisiana than is being experienced in most of the world's coastal regions, reaching global rates that are predicted to occur worldwide in 65 - 85 years. This provides a unique potential to extrapolate data from Louisiana's changing coastal carbon cycle to both regional and global models of the future impact of sea level rise and coastal erosion. By quantifying and modeling the importance of CO2 emissions resulting directly from mineralized soil organic matter from eroding coastlines, a missing element can be added to climate change models. The PIs here plan to investigate the fate of the coastal wetland carbon pool as it erodes using field sampling, laboratory analysis, mesocosm manipulations, and the creation of a coupled physical-biogeochemical model for the basin being studied. Beyond quantifying increased CO2 emission, the PIs will also address the potential for increased eutrophication due to input of nutrients from eroded soils, as well as the potential for future contribution to existing hypoxic zones in the northern Gulf of Mexico that result from excessive nutrient input from the Mississippi River watershed.</p>
Submerged Wetland Carbon
largerWorkCitation
project
eng; USA
oceans
-89.8998
-89.8998
29.443547
29.443547
2018-06-01
2018-06-30
Coastal Lousiana
0
BCO-DMO catalogue of parameters from Soil physicochemical properties of coastal wetland soil cores collected in June 2018 from Barataria Bay, Louisiana
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/851567.rdf
Name: Distance
Units: meters (m)
Description: <p>Distance from marsh edge</p>
http://lod.bco-dmo.org/id/dataset-parameter/851568.rdf
Name: Rep
Units: unitless
Description: <p>Denotation of whether core was the 1st (A), 2nd (B), or 3rd (C) core pulled from the site as field replicate</p>
http://lod.bco-dmo.org/id/dataset-parameter/851569.rdf
Name: Depth
Units: centimeters (cm)
Description: <p>Soil depth below the surface</p>
http://lod.bco-dmo.org/id/dataset-parameter/851570.rdf
Name: Moisture_pcnt
Units: percent (%)
Description: <p>Percentage of moisture within a soil sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/851571.rdf
Name: Bulk_Density
Units: grams per cubic centimeter (g/cm^3)
Description: <p>Weight per unit volume of a soil sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/851572.rdf
Name: OM_pcnt
Units: percent (%)
Description: <p>Concentration of organic matter within a soil sample, expressed as a percent</p>
http://lod.bco-dmo.org/id/dataset-parameter/851573.rdf
Name: d15N
Units: per mil (o/oo)
Description: <p>Isotopic signature of Carbon within soil (permil vs VPDB)</p>
http://lod.bco-dmo.org/id/dataset-parameter/851574.rdf
Name: d13C
Units: per mil (o/oo)
Description: <p>Isotopic signature of Nitrogen within soil (per mil vs AIR)</p>
http://lod.bco-dmo.org/id/dataset-parameter/851575.rdf
Name: N_pcnt
Units: percent (%)
Description: <p>Percentage of Total Nitrogen within a soil sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/851576.rdf
Name: C_pcnt
Units: percent (%)
Description: <p>Percentage of Total Carbon within a soil sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/851577.rdf
Name: Extractable_Nitrate
Units: milligrams per kilogram (mg kg-1)
Description: <p>Concentration of Extractable Nitrate within a soil sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/851578.rdf
Name: Extractable_SRP
Units: milligrams per kilogram (mg kg-1)
Description: <p>Concentration of Extractable Soluble Reactive Phosphorous within a soil sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/851579.rdf
Name: Extractable_Ammonium
Units: milligrams per kilogram (mg kg-1)
Description: <p>Concentration of Extractable Ammonium (NH4+) within a soil sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/851580.rdf
Name: Hemicellulose
Units: milligrams per kilogram (mg kg-1)
Description: <p>Concentration of Hemicellulose within soil</p>
http://lod.bco-dmo.org/id/dataset-parameter/851581.rdf
Name: Cellulose
Units: milligrams per kilogram (mg kg-1)
Description: <p>Concentration of Cellulose within soil</p>
http://lod.bco-dmo.org/id/dataset-parameter/851582.rdf
Name: Recalcitrant_Fraction
Units: milligrams per kilogram (mg kg-1)
Description: <p>Concentration of Refractory Carbon within soil</p>
http://lod.bco-dmo.org/id/dataset-parameter/851583.rdf
Name: Latitude
Units: decimal degrees
Description: <p>Latitude of sampling location</p>
http://lod.bco-dmo.org/id/dataset-parameter/851584.rdf
Name: Longitude
Units: decimal degrees
Description: <p>Longitude of sampling location (West is negative)</p>
http://lod.bco-dmo.org/id/dataset-parameter/851585.rdf
Name: Date_collected
Units: unitless
Description: <p>Date of sample collection</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
17791
https://darchive.mblwhoilibrary.org/bitstream/1912/27151/1/dataset-840246_soil-physicochemical-properties__v1.tsv
download
https://doi.org/10.26008/1912/bco-dmo.840246.1
download
onLine
dataset
<p>Nine coastal wetland soil cores were collected in June 2018 from Barataria Bay, Louisiana, a shallow open water basin located west of the Mississippi River Delta.&nbsp;&nbsp;Soil cores were collected along three transects, roughly 1 meter apart, that consisted of three points:&nbsp; the coastal fringe (0 m inland), 1 meter inland, and 2 meters inland. Soil cores were collected in polycarbonate&nbsp;tubes via the push core method to a depth of 150 cm, and field-extruded into 15 separate 10-cm intervals. Soils were stored&nbsp; in polyethylene bags on ice and immediately transported back to the laboratory, where they were kept at 4 °C until sample analysis was complete.&nbsp;</p>
<p>This dataset includes analyses of&nbsp;biogeochemical properties, organic matter fractionation, and stable isotope signatures.&nbsp;</p>
<p><strong>Moisture Content and Bulk Density</strong>: A subsample of soil was dried using a gravimetric oven at 70°C for 3 days or until a constant weight was achieved. Dried soils were ground using a SPEX Sample Prep 8000M Mixer/Mill (Metuchen, NJ).&nbsp;</p>
<p><strong>Total Carbon and Nitrogen content:&nbsp;</strong>&nbsp;%C and %N were&nbsp; determined using a Vario Micro Cube CHNS Analyzer on dried, ground subsamples.</p>
<p><strong>Organic Matter Content:</strong>&nbsp;Dried, ground sub- samples were used to determine percent organic matter using the loss- on-ignition method, where soils were burned at 550°C in a muffle furnace for a total of 3 hours</p>
<p><strong>Extractable Nitrate, Extractable Ammonium, Extractable&nbsp;Soluble Reactive Phosphorus:&nbsp; </strong>2.5 grams of wet soil (both from the field and from the bottle incubation) were placed into 40 mL centrifuge tubes and 25 mL of 2 M KCl was added. Samples were then shaken continuously on an orbital shaker for 1 hour at 25 °C and 150 rpm, then centrifuged for 10 minutes at 10 °C and 5000 rpm.&nbsp; Following the centrifuge step, samples were immediately filtered through Supor 0.45 μM filters and acidified with double distilled H2SO4 to a pH of &lt; 2 for preservation. Samples of Extractable nutrients&nbsp; were then analyzed using an AQ2 Automated Discrete Analyzer (Seal Analytical, Mequon, WI, EPA methods 231-A Rev.0, 210-A Rev.1, and 204-A Rev.0).</p>
<p><strong>Carbon and Nitrogen isotopes: </strong>Stable isotope analysis was performed at the Stable Isotope Mass Spectroscopy Laboratory, Department of Geological Sciences at the University of Florida.&nbsp; Dried, ground subsamples from only the 1 meter inland cores were initially combusted on a Carlo Erba NA1500 CNS elemental analyzer.&nbsp; Following the removal of oxygen and water from the sample gas, the stream was passed through a 0.7 m GC column (120 °C), which separated the N2 gas from CO2.&nbsp; Effluent then passed into a ConFlo II system, and into a Thermo Electron Delta V Advantage isotope ratio mass spectrometer, where sample gas was measured in relation to laboratory reference gases.&nbsp; Carbon isotope results are expressed in relation to Vienna PDB, in standard delta notation.</p>
<p><strong>Cellulose, Hemicellulose, and Refractory Carbon:&nbsp;</strong>Dried, ground subsamples were subjected to sequential extraction with H2SO4, following Rovira and Vallejo (2002) and Oades et al. (1970), with modifications.&nbsp; The first fraction is referred to hereafter as Labile Pool 1 (LP1) and consists of either plant- or microbially-derived non-cellulosic polysaccharides, including hemicellulose.&nbsp; Labile Pool 1 was extracted by adding 20 mL of 5 N H2SO4 into a 50 mL flask containing 0.5 grams of soil.&nbsp; The solution was heated for 30 minutes at 105 °C and subsequently allowed to cool.&nbsp; Samples were then filtered through Whatman #41 filters to separate particulates from the solution, and then diluted to a final volume of 50 mL.&nbsp; Labile Pool 2 (LP2), which consists of cellulose, was determined by adding 2 mL of 26 N H2SO4 to 0.5 grams of dried, ground soil.&nbsp; Samples were shaken at 100 rpm for 16 hours, then diluted to a final concentration of 2 N H2SO4 with deionized water.&nbsp; Samples were heated for 3 hours at 105°C, then filtered in the same manner as LP1.&nbsp; Determinations of LP1 and LP2 concentrations were conducted by use of a Shimadzu TOC-L (Shimadzu, Kyoto, Japan).&nbsp; The refractory pool was calculated as total soil C minus the sum of the labile pools.&nbsp; All pools were normalized to total soil C content.&nbsp;&nbsp;</p>
Specified by the Principal Investigator(s)
<p><strong>Data processing:</strong><br />
All statistical analysis was performed in R (R Institute for Statistical Computing, Vienna, Austria) using RStudio (RStudio Inc., Boston, MA, USA). The Shapiro-Wilk test was used to verify assumptions of normality, and a logarithmic transformation was performed on all datasets. &nbsp;Levene’s test was used to determine homogeneity of variance. A linear mixed-effect model (package ‘lmer’) was used to test the following predictor variables: depth, distance inland, and the interaction of depth and distance inland on the samples collected from the marsh. Transect was included as a random effect. Distance inland was found to be a non-significant predictor variable for all parameters except for extractable NH4+. As such, distance inland and the interaction of depth and distance was removed as a predictor variable from models except extractable NH4+. Isotopic determinations and quantitative PCR analysis was performed exclusively on the three replicate cores taken 1 meter inland, and thus depth was the only predictor variable tested for those parameters. Following determination of significance within one of the predictor variables, the package ‘lsmeans’ was used for post-hoc pairwise comparisons using the Tukey method.</p>
<p><strong>BCO-DMO processing:</strong><br />
-&nbsp;Added a conventional header with dataset name, PI names, version date<br />
-&nbsp;Adjusted parameter names to comply with database requirements<br />
-&nbsp;Units removed and added to Parameter Description metadata section<br />
- Added Latitude and Longitude columns, converted DMS to DD<br />
- Added column for Date of collection<br />
- Entries with 'Analysis Not Conducted' were replaced with 'nd' (BCO-DMO's default missing data identifier)&nbsp;</p>
Specified by the Principal Investigator(s)
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
Carlo Erba NA1500 CNS elemental analyzer
Carlo Erba NA1500 CNS elemental analyzer
PI Supplied Instrument Name: Carlo Erba NA1500 CNS elemental analyzer Instrument Name: Carlo-Erba NA-1500 Elemental Analyzer Instrument Short Name:Carlo-Erba NA-1500 Instrument Description: A laboratory instrument that simultaneously determines total nitrogen and total carbon from a wide range of organic and inorganic sediment samples. The sample is completely and instantaneously oxidised by flash combustion, which converts all organic and inorganic substances into combustion products. The resulting combustion gases pass through a reduction furnace and are swept into the chromatographic column by the carrier gas which is helium. The gases are separated in the column and detected by the thermal conductivity detector which gives an output signal proportional to the concentration of the individual components of the mixture. The instrument was originally manufactured by Carlo-Erba, which has since been replaced by Thermo Scientific (part of Thermo Fisher Scientific). This model is no longer in production. Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0470/
PI Supplied Instrument Name: Instrument Name: Centrifuge Instrument Short Name: Instrument Description: A machine with a rapidly rotating container that applies centrifugal force to its contents, typically to separate fluids of different densities (e.g., cream from milk) or liquids from solids.
ConFlo II system
ConFlo II system
PI Supplied Instrument Name: ConFlo II system Instrument Name: Continuous Flow Interface for Mass Spectrometers Instrument Short Name: Instrument Description: A Continuous Flow Interface connects solid and liquid sample preparation devices to instruments that measure isotopic composition. It allows the introduction of the sample and also reference and carrier gases.
Examples: Finnigan MATConFlo II, ThermoScientific ConFlo IV, and Picarro Caddy.
Note: This is NOT an analyzer
AQ2 Automated Discrete Analyzer
AQ2 Automated Discrete Analyzer
PI Supplied Instrument Name: AQ2 Automated Discrete Analyzer PI Supplied Instrument Description:AQ2 Automated Discrete Analyzer (Seal Analytical, Mequon, WI) Instrument Name: Discrete Analyzer Instrument Short Name:Discrete Analyzer Instrument Description: Discrete analyzers utilize discrete reaction wells to mix and develop the colorimetric reaction, allowing for a wide variety of assays to be performed from one sample. These instruments are ideal for drinking water, wastewater, soil testing, environmental and university or research applications where multiple assays and high throughput are required.
gravimetric oven
gravimetric oven
PI Supplied Instrument Name: gravimetric oven Instrument Name: Drying Oven Instrument Short Name: Instrument Description: a heated chamber for drying
Vario Micro Cube CHNS Analyzer
Vario Micro Cube CHNS Analyzer
PI Supplied Instrument Name: Vario Micro Cube CHNS Analyzer PI Supplied Instrument Description:%C and %N were determined using a Vario Micro Cube CHNS Analyzer on dried, ground subsamples. Instrument Name: Elemental Analyzer Instrument Short Name: Instrument Description: Instruments that quantify carbon, nitrogen and sometimes other elements by combusting the sample at very high temperature and assaying the resulting gaseous oxides. Usually used for samples including organic material. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB01/
SPEX Sample Prep 8000M Mixer/Mill
SPEX Sample Prep 8000M Mixer/Mill
PI Supplied Instrument Name: SPEX Sample Prep 8000M Mixer/Mill PI Supplied Instrument Description:Dried soils were ground using a SPEX Sample Prep 8000M Mixer/Mill (Metuchen, NJ) Instrument Name: Homogenizer Instrument Short Name:Homogenizer Instrument Description: A homogenizer is a piece of laboratory equipment used for the homogenization of various types of material, such as tissue, plant, food, soil, and many others.
Thermo Electron Delta V Advantage isotope ratio mass spectrometer
Thermo Electron Delta V Advantage isotope ratio mass spectrometer
PI Supplied Instrument Name: Thermo Electron Delta V Advantage isotope ratio mass spectrometer Instrument Name: Isotope-ratio Mass Spectrometer Instrument Short Name:IR Mass Spec; IRMS Instrument Description: The Isotope-ratio Mass Spectrometer is a particular type of mass spectrometer used to measure the relative abundance of isotopes in a given sample (e.g. VG Prism II Isotope Ratio Mass-Spectrometer). Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB16/
PI Supplied Instrument Name: PI Supplied Instrument Description:Soils were burned at 550°C in a muffle furnace for a total of 3 hours for loss-on-ignition method Instrument Name: muffle furnace Instrument Short Name: Instrument Description: A muffle furnace or muffle oven (sometimes retort furnace in historical usage) is a furnace in which the subject material is isolated from the fuel and all of the products of combustion, including gases and flying ash. A type of jacketed enclosure that is used to heat a material to significantly high temperatures while keeping it contained and fully isolated from external contaminants, chemicals or substances. Muffle furnaces are usually lined with stainless steel, making them largely corrosion-resistant.
PI Supplied Instrument Name: Instrument Name: Push Corer Instrument Short Name: Instrument Description: Capable of being performed in numerous environments, push coring is just as it sounds. Push coring is simply pushing the core barrel (often an aluminum or polycarbonate tube) into the sediment by hand. A push core is useful in that it causes very little disturbance to the more delicate upper layers of a sub-aqueous sediment.
Description obtained from: http://web.whoi.edu/coastal-group/about/how-we-work/field-methods/coring/
orbital shaker
orbital shaker
PI Supplied Instrument Name: orbital shaker PI Supplied Instrument Description:For extractable nitrate, ammonium, and soluble reactive phosophorus, samples were shaken continuously on an orbital shaker Instrument Name: Shaker Instrument Short Name: Instrument Description: A Shaker is a piece of lab equipment used to mix, blend, or to agitate substances in tube(s) or flask(s) by shaking them, which is mainly used in the fields of chemistry and biology. A shaker contains an oscillating board which is used to place the flasks, beakers, test tubes, etc.
Shimadzu TOC-L
Shimadzu TOC-L
PI Supplied Instrument Name: Shimadzu TOC-L PI Supplied Instrument Description:Shimadzu TOC-L (Shimadzu, Kyoto, Japan) Instrument Name: Shimadzu TOC-L Analyzer Instrument Short Name:Shimadzu TOC-L Instrument Description: A Shimadzu TOC-L Analyzer measures DOC by high temperature combustion method.
Developed by Shimadzu, the 680 degree C combustion catalytic oxidation method is now used worldwide. One of its most important features is the capacity to efficiently oxidize hard-to-decompose organic compounds, including insoluble and macromolecular organic compounds. The 680 degree C combustion catalytic oxidation method has been adopted for the TOC-L series.
http://www.shimadzu.com/an/toc/lab/toc-l2.html Community Standard Description: http://onto.nerc.ac.uk/CAST/124.html