http://lod.bco-dmo.org/id/dataset/865909
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
2021-12-07
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Organic carbon, carbonate, and opal data from Multitracers sediment trap samples
2023-10-25
publication
2023-10-25
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2023-10-25
publication
https://doi.org/10.26008/1912/bco-dmo.865909.1
Robert Collier
Oregon State University
principalInvestigator
Mitch Lyle
Oregon State University
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: Collier, R., Lyle, M. (2023) Organic carbon, carbonate, and opal data from Multitracers sediment trap samples. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2023-10-25 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.865909.1 [access date]
Multitracers Biogenic Concentration Data Dataset Description: Methods and Sampling: <p><strong>Sample collection</strong><br />
During the Multitracers Project (September 1987 to July 1991) bottom-moored sediments traps were deployed at three stations (Nearshore, Midway, and Gyre) in the Northeast Pacific Ocean.</p>
<p>Each mooring had sediment traps deployed at 500 m (Year 1 only), 1000 m, 1500 and/or 1750 m, and 500 m above the bottom (~2300 m at the Nearshore and Midway stations and ~3200 m at the Gyre site). Most traps, with the exception of the 1500 m trap, had 6 sample cups. The 1500 m traps, referred to as Whizbang (WzB) traps, had 13 sample cups. Data for cup opening dates and the number of days each cup was open are provided in this dataset.</p>
<p>The trap sample cups were filled with unfiltered seawater collected from the near-bottom trap depth at each site and poisoned with 15g/L of sodium azide. To compare the effects of different "preservatives" a pair of traps were deployed at the Nearshore site (1750 m water depth) in Year 3; one set of cups was poisoned with sodium azide and the others preserved with formalin. No special trace metal clean sampling procedures were utilized during the Mulitracers Project; however, the traps were constructed out of plastic and fiberglass thus reducing possible trace metal contamination.</p>
<p>When the sediment traps were recovered the sample cups were removed, sealed, and not opened until they were ready to be processed in the laboratory. Once back at the lab the samples were allowed to sit undisturbed until the particulate material had settled. Once opened the supernatant was poured off and then used to rinse the particulate fraction through a 2 mm sieve. The ≥2 mm size-fraction was transferred to a bottle containing formalin and refrigerated for future use. The &lt;2 mm size-fraction, which was used in this study, was split into 10 aliquots. Between 1 and 4 aliquots were frozen for future use. The other 6 to 9 aliquots were centrifuged and the supernatant was discarded. These samples were then rinsed with buffered distilled water and centrifuged; this step was carried out twice. Finally, the samples were freeze-dried and then homogenized using either an agate pestle and mortar or a Wig-L-Bug grinding mill with plastic vials.</p>
<p><strong>Analytical methods</strong><br />
Particulate organic carbon (POC) concentrations were determined by measuring the total carbon using an elemental analyzer and then subtracting the percent carbonate carbon that was measured by coulometry. The amount of organic matter (OM) is 2.5 x the %Corg and the amount of carbonate (i.e., CaCO<sub>3</sub>) is 8.33 x %Ccarb. The opal concentration was determined by Na<sub>2</sub>CO<sub>3</sub> extraction of the opal followed by Atomic Adsorption Spectrophotometry analysis of the extracted Si (% Opal = Si x 2.59; Collier pers. comm.).</p>
<p><strong>Known problems/issues</strong><br />
In Year 1, the 500 m trap at the Nearshore station failed after the third cup, presumably due to clogging during a high flux event. There is also evidence that the 500 m trap at the Gyre site under-collected material (i.e., lower fluxes at 500 m compared to 1000 m). The 1500 m trap, which was only deployed at the Nearshore station in Year 1, appears to have failed partway through or was programmed incorrectly. Other failed traps are indicated by MTT (column 1) and a sample description of "bulk" (column 2).</p>
<p>The Gyre mooring deployed in Year 3 was not recovered until Year 4 and is therefore named Gyre-4. However, the Date the Cup Opened (column 10) clearly shows these samples were collected between 9/21/89 and 6/25/90 (i.e., Year 3 and much of Year 4).</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-8609366 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=8609366
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-8919956 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=8919956
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-8812340 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=8812340
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-9000945 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=9000945
completed
Robert Collier
Oregon State University
541-760-1749
104 CEOAS Admin Building
Corvallis
OR
97331
USA
collirob@oregonstate.edu
pointOfContact
Mitch Lyle
Oregon State University
541-801-9872
104 CEOAS Admin Building
Corvallis
OR
97331
USA
mitch.lyle@oregonstate.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Sample_ID
Sample_Description
Mooring_ID
Sample_Type
Latitude
Longitude
Water_Depth
Trap_Depth
Cup_num
Date_Cup_Opened
Days_Cup_Open
Cup_vol
Area
Wt_in_cup
Wt_Fract
Chlorine
Salt
Total_Flux_mg_cm2_y
Total_Flux_mg_m2_d
Corg
OM
Ccarb
CaCO3
Biogenic_SiO2
Corg_Flux
OM_flux
Ccarb_flux
CaCO3_flux
Biogenic_SiO2_flux
elemental analyzer
agate pestle and mortar or a Wig-L-Bug grinding mill
sediment traps
Atomic Adsorption Spectrophotometry
theme
None, User defined
sample identification
sample description
mooring identification
sample type
latitude
longitude
depth_w
depth
sample cup number
date
time_elapsed
volume
surface_area
weight
chlorine
No BCO-DMO term
flux
organic carbon
Elemental carbon (C)
Calcium Carbonate
silicate, silicon dioxide SiO2
featureType
BCO-DMO Standard Parameters
Elemental Analyzer
Homogenizer
Sediment Trap
Spectrophotometer
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.
Multitracers to Predict Paleoproductivity in the California Current System from Sediment and Sediment Trap Materials
https://osprey.bco-dmo.org/project/865930
Multitracers to Predict Paleoproductivity in the California Current System from Sediment and Sediment Trap Materials
<p><em>NSF Award Abstract:</em><br />
Long-term sediment trap deployment provide an opportunity to examine the fidelity of deep-sea sediments as recorders of near- surface oceanic processes. Such studies are important because a fundamental assumption of paleoceanographic research is that the micropaleontologic and sediment chemistry record can be used to examine changes in sea surface conditions over long geologic time scales. The present recommended award will support a multitracer study of the relation of "imput" and "preservation" in marine sediments. The use of stable isotope, geochemical, and micropaleontologic criteria should allow an accurate assessment of differences between deposited sediments and the initial surface water input. The field phase of the project will deploy an array of sediment traps in the California Current system which has strong seasonal gradients in net productivity and surface oceanography. Analyses on the sediment trap material and surface sediments will be used to develop a set of independent proxies for net productivity. Components most likely to provide this information include: biogenous, calcareous, and siliceous microfossils; barite and bio-limiting trace elements such as copper and zinc; and organic matter and certain of its nitrogenous compounds including iodine, bromine, and phosphorous. Such analyses should allow an accurate definition of those signal carriers most highly correlated to net biologic productivity. The principal investigators are highly qualified to undertake the field and analysis portion of the project and have successfully completed previous sediment trap projects. Funding is strongly recommended at the following levels: FY87 = $224,750; FY88 = $229,615; FY89 = $201,299.</p>
Multitracers Sediment Traps
largerWorkCitation
project
Multitracers to Predict Paleoproductivity in the California Current System
https://osprey.bco-dmo.org/project/865937
Multitracers to Predict Paleoproductivity in the California Current System
<p><em>NSF Award Abstract:</em><br />
Long-term sediment trap deployment provide an opportunity to examine the fidelity of deep-sea sediments as recorders of near-surface oceanic processes. Such studies are important because a fundamental assumption of paleoceanographic research is that the micropaleontologic and sediment chemistry record can be used to examine changes in sea surface conditions over long geologic time scales. The present recommended award will support a multitracer study of the relation of "input" and "preservation" in marine sediments. The use of stable isotope, geochemical, and micropaleontologic criteria should allow an accurate assessment surface water input. The field phase of the project will deploy an array of sediment traps in the California Current system which has strong seasonal gradients in net productivity and surface oceanography. Analyses on the sediment trap material and surface sediments will be used to develop a set of independent proxies for net productivity. Components most likely to provide this information include: biogenous, calcareous, and siliceous microfossils; barite and bio-limiting trace elements such as copper and zinc; and organic matter and certain of its nitrogenous compounds including iodine, bromine, and phosphorous. Such analyses should correlated to net biologic productivity</p>
Multitracers Paleoproductivity
largerWorkCitation
project
Biogenic Chemical Records in Deep-Sea Sediments and Their Application to Paleo-Oceanographic Study
https://osprey.bco-dmo.org/project/866209
Biogenic Chemical Records in Deep-Sea Sediments and Their Application to Paleo-Oceanographic Study
<p><em>NSF Award Abstract:</em><br />
This research will continue a project to study climatically induced changes in biogenic sedimentation in the oceans. The type of biogenic material found in core samples varies with the paleoclimate and, therefore, appears to be temperature controlled. This research project will develop more rapid methods for doing the analysis of the biogenic material, and extend the earlier studies to both older sediment and other cores where independent estimates of paleotemperature have been made. The results of this research will lead to the understanding of causes for changes in primary productivity in the oceans during climatic changes.</p>
Biogenic Chemical Records
largerWorkCitation
project
Multitracers II - Wintertime Particle Production, Transport and Sedimentation
https://osprey.bco-dmo.org/project/866214
Multitracers II - Wintertime Particle Production, Transport and Sedimentation
<p><em>NSF Award Abstract:</em><br />
An important goal of the Multitracers Project is to quantify paleoproductivity (defined as organic carbon flux out of the euphotic zone) off the coast of Oregon from the peak of the last glacial maximum to the present. By accomplishing this goal the PIs will also develop paleoproductivity tracers that can be applied elsewhere in the oceans, and establish the limitations of each tracer. Three sediment trap moorings forming a transect away from the Oregon coast are a key aspect of the tracer calibration. The approach is to apply multipletracers for productivity the bulk organic fraction, inorganic elements (Cu,Zn,Ba), organic geochemical biomarkers, and microfossils to determine when all give consistent information and to determine when each begins to track paleoceanogrphic variables other than productivity. Funding is provided for an additional field season for the Multitracers Project, consisting of two 6 month trap deployments at the two inshore sites. The high-solution sediment trap data and the water column information from the springtime should enable to adequately define winter-spring productivity events in the region. In addition, the three-year time series of sediment trap fluxes will help understand the interannual variability of productivity in the California Current. This represents a modification to the previously funded project entitled "Multitracers to predict paleoproductivity in the California Current System from sediment and sediment trap materials" (OCE-8609366).</p>
Multitracers II
largerWorkCitation
project
eng; USA
oceans
-132
-125.761
40.087
42.192
1987-09-22
1991-09-01
California Current System
0
BCO-DMO catalogue of parameters from Organic carbon, carbonate, and opal data from Multitracers sediment trap samples
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/866251.rdf
Name: Sample_ID
Units: unitless
Description: <p>sample identifier</p>
http://lod.bco-dmo.org/id/dataset-parameter/866252.rdf
Name: Sample_Description
Units: unitless
Description: <p>sample description</p>
http://lod.bco-dmo.org/id/dataset-parameter/866253.rdf
Name: Mooring_ID
Units: unitless
Description: <p>mooring identifier</p>
http://lod.bco-dmo.org/id/dataset-parameter/866254.rdf
Name: Sample_Type
Units: unitless
Description: <p>sample type</p>
http://lod.bco-dmo.org/id/dataset-parameter/866255.rdf
Name: Latitude
Units: degrees North
Description: <p>latitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/866256.rdf
Name: Longitude
Units: degrees East
Description: <p>longitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/866257.rdf
Name: Water_Depth
Units: meters (m)
Description: <p>water depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/866258.rdf
Name: Trap_Depth
Units: meters (m)
Description: <p>trap depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/866259.rdf
Name: Cup_num
Units: unitless
Description: <p>cup number</p>
http://lod.bco-dmo.org/id/dataset-parameter/866260.rdf
Name: Date_Cup_Opened
Units: unitless
Description: <p>date when cup was opened; format: YYYY-MM-DD</p>
http://lod.bco-dmo.org/id/dataset-parameter/866261.rdf
Name: Days_Cup_Open
Units: days
Description: <p>number of days cup was open</p>
http://lod.bco-dmo.org/id/dataset-parameter/866262.rdf
Name: Cup_vol
Units: milliliters (ml)
Description: <p>cup volume</p>
http://lod.bco-dmo.org/id/dataset-parameter/866263.rdf
Name: Area
Units: square meters (m2)
Description: <p>area</p>
http://lod.bco-dmo.org/id/dataset-parameter/866264.rdf
Name: Wt_in_cup
Units: grams (g)
Description: <p>weight in cup</p>
http://lod.bco-dmo.org/id/dataset-parameter/866265.rdf
Name: Wt_Fract
Units: unitless
Description: <p>weight fraction</p>
http://lod.bco-dmo.org/id/dataset-parameter/866266.rdf
Name: Chlorine
Units: percent (%)
Description: <p>chlorine</p>
http://lod.bco-dmo.org/id/dataset-parameter/866267.rdf
Name: Salt
Units: percent (%)
Description: <p>salt</p>
http://lod.bco-dmo.org/id/dataset-parameter/866268.rdf
Name: Total_Flux_mg_cm2_y
Units: milligrams per square centimeter per year (mg/cm2/y)
Description: <p>total flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/866269.rdf
Name: Total_Flux_mg_m2_d
Units: milligrams per square meter per day (mg/m2/d)
Description: <p>total flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/866270.rdf
Name: Corg
Units: percent (%)
Description: <p>organic carbon</p>
http://lod.bco-dmo.org/id/dataset-parameter/866271.rdf
Name: OM
Units: percent (%)
Description: <p>organic matter</p>
http://lod.bco-dmo.org/id/dataset-parameter/866272.rdf
Name: Ccarb
Units: percent (%)
Description: <p>carbonate (i.e. inorganic) carbon</p>
http://lod.bco-dmo.org/id/dataset-parameter/866273.rdf
Name: CaCO3
Units: percent (%)
Description: <p>calcium carbonate</p>
http://lod.bco-dmo.org/id/dataset-parameter/866274.rdf
Name: Biogenic_SiO2
Units: percent (%)
Description: <p>biogenic SiO2</p>
http://lod.bco-dmo.org/id/dataset-parameter/866275.rdf
Name: Corg_Flux
Units: milligrams per square meter per day (mg/m2/d)
Description: <p>organic carbon flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/866276.rdf
Name: OM_flux
Units: milligrams per square meter per day (mg/m2/d)
Description: <p>organic matter flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/866277.rdf
Name: Ccarb_flux
Units: milligrams per square meter per day (mg/m2/d)
Description: <p>inorganic carbon flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/866278.rdf
Name: CaCO3_flux
Units: milligrams per square meter per day (mg/m2/d)
Description: <p>calcium carbonate flux</p>
http://lod.bco-dmo.org/id/dataset-parameter/866279.rdf
Name: Biogenic_SiO2_flux
Units: milligrams per square meter per day (mg/m2/d)
Description: <p>biogenic SiO2 flux</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
62962
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/83574e6b-2060-426a-b296-8716bd142bb2/content
download
https://doi.org/10.26008/1912/bco-dmo.865909.1
download
onLine
dataset
<p><strong>Sample collection</strong><br />
During the Multitracers Project (September 1987 to July 1991) bottom-moored sediments traps were deployed at three stations (Nearshore, Midway, and Gyre) in the Northeast Pacific Ocean.</p>
<p>Each mooring had sediment traps deployed at 500 m (Year 1 only), 1000 m, 1500 and/or 1750 m, and 500 m above the bottom (~2300 m at the Nearshore and Midway stations and ~3200 m at the Gyre site). Most traps, with the exception of the 1500 m trap, had 6 sample cups. The 1500 m traps, referred to as Whizbang (WzB) traps, had 13 sample cups. Data for cup opening dates and the number of days each cup was open are provided in this dataset.</p>
<p>The trap sample cups were filled with unfiltered seawater collected from the near-bottom trap depth at each site and poisoned with 15g/L of sodium azide. To compare the effects of different "preservatives" a pair of traps were deployed at the Nearshore site (1750 m water depth) in Year 3; one set of cups was poisoned with sodium azide and the others preserved with formalin. No special trace metal clean sampling procedures were utilized during the Mulitracers Project; however, the traps were constructed out of plastic and fiberglass thus reducing possible trace metal contamination.</p>
<p>When the sediment traps were recovered the sample cups were removed, sealed, and not opened until they were ready to be processed in the laboratory. Once back at the lab the samples were allowed to sit undisturbed until the particulate material had settled. Once opened the supernatant was poured off and then used to rinse the particulate fraction through a 2 mm sieve. The ≥2 mm size-fraction was transferred to a bottle containing formalin and refrigerated for future use. The &lt;2 mm size-fraction, which was used in this study, was split into 10 aliquots. Between 1 and 4 aliquots were frozen for future use. The other 6 to 9 aliquots were centrifuged and the supernatant was discarded. These samples were then rinsed with buffered distilled water and centrifuged; this step was carried out twice. Finally, the samples were freeze-dried and then homogenized using either an agate pestle and mortar or a Wig-L-Bug grinding mill with plastic vials.</p>
<p><strong>Analytical methods</strong><br />
Particulate organic carbon (POC) concentrations were determined by measuring the total carbon using an elemental analyzer and then subtracting the percent carbonate carbon that was measured by coulometry. The amount of organic matter (OM) is 2.5 x the %Corg and the amount of carbonate (i.e., CaCO<sub>3</sub>) is 8.33 x %Ccarb. The opal concentration was determined by Na<sub>2</sub>CO<sub>3</sub> extraction of the opal followed by Atomic Adsorption Spectrophotometry analysis of the extracted Si (% Opal = Si x 2.59; Collier pers. comm.).</p>
<p><strong>Known problems/issues</strong><br />
In Year 1, the 500 m trap at the Nearshore station failed after the third cup, presumably due to clogging during a high flux event. There is also evidence that the 500 m trap at the Gyre site under-collected material (i.e., lower fluxes at 500 m compared to 1000 m). The 1500 m trap, which was only deployed at the Nearshore station in Year 1, appears to have failed partway through or was programmed incorrectly. Other failed traps are indicated by MTT (column 1) and a sample description of "bulk" (column 2).</p>
<p>The Gyre mooring deployed in Year 3 was not recovered until Year 4 and is therefore named Gyre-4. However, the Date the Cup Opened (column 10) clearly shows these samples were collected between 9/21/89 and 6/25/90 (i.e., Year 3 and much of Year 4).</p>
Specified by the Principal Investigator(s)
<p><strong>Data Notes:</strong></p>
<p>NS-1 to 5= Nearshore sediment trap mooring site, years 1 to 5 (see below*)<br />
MW-1 to 5= Midway sediment trap mooring site, years 1 to 5 (see below*)<br />
Gyre-1 to 5 = Gyre sediment trap mooring site, years 1 to 5 (see below*)</p>
<p>MTT samples (column 1) = a bulk sample collected from a failed trap or if the sample description says "ALL" this is the calculated average value for the year. The cup number is designated at zero (0) in column 9.<br />
nd = not determined<br />
na = not applicable / available</p>
<p>Corg = organic carbon<br />
Ccarb = carbonate (i.e., inorganic) carbon<br />
OM = organic matter</p>
<p>* A year refers to the time from when a trap mooring is deployed to when it is recovered and the samples are collected. It does not refer to a calendar year. Traps are named based on the "year" of the project they were recovered. Therefore, Gyre-3 traps do not exist because this mooring was not recovered until "year 4" and thus is named Gyre-4.</p>
<p>&nbsp;</p>
Specified by the Principal Investigator(s)
- converted dates for YYYY-MM-DD format;
- renamed fields to conform with BCO-DMO naming conventions.
Specified by BCO-DMO Data Managers
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
elemental analyzer
elemental analyzer
PI Supplied Instrument Name: elemental analyzer 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/
agate pestle and mortar or a Wig-L-Bug grinding mill
agate pestle and mortar or a Wig-L-Bug grinding mill
PI Supplied Instrument Name: agate pestle and mortar or a Wig-L-Bug grinding mill 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.
sediment traps
sediment traps
PI Supplied Instrument Name: sediment traps Instrument Name: Sediment Trap Instrument Short Name:Sediment Trap Instrument Description: Sediment traps are specially designed containers deployed in the water column for periods of time to collect particles from the water column falling toward the sea floor. In general a sediment trap has a jar at the bottom to collect the sample and a broad funnel-shaped opening at the top with baffles to keep out very large objects and help prevent the funnel from clogging. This designation is used when the specific type of sediment trap was not specified by the contributing investigator. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/33/
Atomic Adsorption Spectrophotometry
Atomic Adsorption Spectrophotometry
PI Supplied Instrument Name: Atomic Adsorption Spectrophotometry Instrument Name: Spectrophotometer Instrument Short Name:Spectrophotometer Instrument 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. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB20/