http://lod.bco-dmo.org/id/dataset/827014
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
2020-10-19
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Sparging chamber test results of radon activity from laboratory experiments to optimize chamber configuration for Radon-222 analysis
2020-10-19
publication
2020-10-19
revision
BCO-DMO Linked Data URI
2020-10-19
creation
http://lod.bco-dmo.org/id/dataset/827014
Richard N. Peterson
Coastal Carolina University
principalInvestigator
John Breier
Woods Hole Oceanographic Institution
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: Peterson, R. N., Breier, J. (2020) Sparging chamber test results of radon activity from laboratory experiments to optimize chamber configuration for Radon-222 analysis. Biological and Chemical Oceanography Data Management Office (BCO-DMO). Version Date 2020-10-19 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/827014 [access date]
Sparging Chamber Testing - Bell Dataset Description: <p>These data were collected in order to optimize a new method for degassing dissolved radon-222 from water. This dataset includes the experimental (Bell) results. See also the control dataset (https://www.bco-dmo.org/dataset/826844). The general premise is the use of a sparging chamber (‘Bell’) that is deployed underwater and uses bubbles to degas the radon.&nbsp;</p> Methods and Sampling: <p>See methodology outlined in Peterson et al., 2013 (Journal of Radioanalytical and Nuclear Chemistry). The sparging chamber is connected to a commercially-available radon-in-air monitor (RAD7; Durridge Co.) via a closed air loop.&nbsp; Air exiting the RAD7 circulates to the bottom of the sparging chamber where it enters via aquarium bubblers.&nbsp; The bubbles rise through the sparging chamber and accumulate in a headspace, from which air is pumped through desiccant back to the RAD7.&nbsp;&nbsp;</p>
<p>Our control to which we compare the sparging chamber is the commercially-available RAD-Aqua (Durridge Co.) which sprays a water sample into a chamber rather than using bubbles.&nbsp; Otherwise, the setups are similar.</p>
<p>Data contained herein are various laboratory testing configurations to optimize dimensions of the sparging chamber, number and type of bubblers, and any benefits from adding an additional sprayer capability to the top of the sparging chamber.&nbsp; All configurations tested are accompanied by a number of replicates.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1029223 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1029223
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1028990 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1028990
onGoing
Richard N. Peterson
Coastal Carolina University
843-349-4057
Department of Coastal and Marine Systems Science P.O. Box 261954
Conway
SC
29528-6054
USA
rpeters2@coastal.edu
pointOfContact
John Breier
Woods Hole Oceanographic Institution
jbreier@whoi.edu
pointOfContact
asNeeded
Unknown
resource_name
Date
Chamber
Bubblers
Sprayer_Status
Water_Source
Bell_RAD7_SN
Exchanger_RAD7_SN
Test
ISO_DateTime
Year
Month
Day
Hour
Min
Tot_Count
Live_Time
Win_A_pcnt
Win_B_pcnt
Win_C_pcnt
Win_D_pcnt
HV
HV_duty_cycle
Temp
RelHumidity
Leak_curr
Batt_Volt
Pump_Curr
Flags_Byte
Bq_m3
Error_2sigma
Units_Byte
Elapsed_Time
Count_Rate_Win_A_cpm
Win_A_error
Rn_Activity_Air_dpm_L
Air_error
Water_Temp
Conversion_Factor
Rn_Activity_Water_dpm_L
Water_error
Smoothed
pcnt_Equilibration
RAD7 radon-in-air monitors (Durridge Co.)
HOBO water level data logger (Onset Corp.)
theme
None, User defined
file_name
date
treatment
inst_serial_numb
replicate
ISO_DateTime_Local
year
month_local
day_local
hour_local
minute_local
count
time_elapsed
radioactive isotope concentration
No BCO-DMO term
air temperature
humidity
flag
water temperature at measurement depth
featureType
BCO-DMO Standard Parameters
RAD-7 Radon Detector
Temperature Logger
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.
Collaborative Research: Development of a Submersible, Autonomous Rn-222 Survey System
http://www.breierlab.info/RADx.html
Collaborative Research: Development of a Submersible, Autonomous Rn-222 Survey System
<p>The PI's request funding to develop a submersible system capable of in situ 222Rn analysis while deployed from a remotely-operated vehicle (ROV) or autonomous underwater vehicle (AUV). Such a system would allow researchers to conduct high-resolution radon surveying through 3-D grids of bottom water and later return to sites of interest to measure a 222Rn time-series in order to quantify SGD fluxes. The system design relies on a new technique to sparge radon, while submerged, from the water for analysis via bubbling a closed air loop through a contained water column. Preliminary evidence shows this to be a viable approach.</p>
<p>Submarine groundwater discharge (SGD) is quickly gaining recognition as an important delivery mechanism of new and recycled nutrients to the coastal ocean. Chemical tracers such as 222Rn and radium isotopes offer excellent utility at detecting groundwater discharge zones and quantifying associated fluxes in nearshore (shallow) waters, but the traditional approaches to sampling and measuring these tracers become progressively less useful as the water column deepens, stratification strengthens, and physical mixing becomes more complex. In deeper waters (1) of the continental shelf where outcropping geological units can focus SGD, and (2) around critical habitats like coral reef ecosystems, one?s ability to measure these tracers is limited to grab sampling-scale resolution. Such resolution is generally not sufficient to understand the pathways, driving forces, and rates of these discharges, nor is it conducive to quantifying associated nutrient delivery fluxes. Prior to assessing the global significance of SGD, then, there exists great need for a tool capable of in situ, continuous measurement of geochemical tracers of SGD in deeper waters of the continental shelf.</p>
<p>Broader Impacts:</p>
<p>Since this proposed study develops a new research tool available for other scientists, the success of this study will have a large and broad impact on SGD studies in important deep basins, hydrothermal studies quantifying hydrothermal flow, and deep-water circulation and mixing studies using Rn-222 as a tracer. The investigators have included a plan for outreach to sponsor a two-semester, senior Design Clinic team of 3-4 undergraduate female engineering students from Smith College's Picker Engineering Program. This undergraduate team will gain experience working on a real-world engineering problem and this project will likewise benefit from their engineering contribution. Breier has undertaken a similar collaboration with Smith College for the NDSF microbial mat sampler project and the results to both sides have been outstanding. Breier and Singh will also mentor a MIT/WHOI Joint Program Ph.D. student as part of this project, with the hope that one of the Smith College engineering students may make this transition. Peterson will also serve as an undergraduate mentor.</p>
Submersible Rn-222
largerWorkCitation
project
eng; USA
oceans
2010-09-21
2012-08-02
Coastal Carolina University; Woods Hole Oceanographic Institution
0
BCO-DMO catalogue of parameters from Sparging chamber test results of radon activity from laboratory experiments to optimize chamber configuration for Radon-222 analysis
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/827068.rdf
Name: resource_name
Units: unitless
Description: <p>file name of originally submitted Excel file; suffix -1 indicates first sheet; suffix -2 indicates second sheet</p>
http://lod.bco-dmo.org/id/dataset-parameter/827069.rdf
Name: Date
Units: unitless
Description: <p>ISO-formatted date when data was logged (yyyy-mm-dd)</p>
http://lod.bco-dmo.org/id/dataset-parameter/827070.rdf
Name: Chamber
Units: unitless
Description: <p>description of the sparging chamber: height and width??</p>
http://lod.bco-dmo.org/id/dataset-parameter/827071.rdf
Name: Bubblers
Units: unitless
Description: <p>?number and type of bubblers: default = ??; micro = ??; bubblestone = an aqurium air stone was used to create bubbles</p>
http://lod.bco-dmo.org/id/dataset-parameter/827072.rdf
Name: Sprayer_Status
Units: unitless
Description: <p>indicates whether a spray chamber was employed or not</p>
http://lod.bco-dmo.org/id/dataset-parameter/827073.rdf
Name: Water_Source
Units: unitless
Description: <p>water source; tap water ; high to low = ??; withers swash = ??</p>
http://lod.bco-dmo.org/id/dataset-parameter/827074.rdf
Name: Bell_RAD7_SN
Units: unitless
Description: <p>serial number of Bell RAD7 Radon detector</p>
http://lod.bco-dmo.org/id/dataset-parameter/827075.rdf
Name: Exchanger_RAD7_SN
Units: unitless
Description: <p>serial number of the Exchanger RAD7 Radon detector</p>
http://lod.bco-dmo.org/id/dataset-parameter/827076.rdf
Name: Test
Units: unitless
Description: <p>RAD7 test (cycle) number</p>
http://lod.bco-dmo.org/id/dataset-parameter/827077.rdf
Name: ISO_DateTime
Units: unitless
Description: <p>ISO-formatted date and time when data was logged (yyyy-mm-ddTHH:MM:SS)</p>
http://lod.bco-dmo.org/id/dataset-parameter/827078.rdf
Name: Year
Units: None
Description: <p>2 digit year during which data was logged</p>
http://lod.bco-dmo.org/id/dataset-parameter/827079.rdf
Name: Month
Units: None
Description: <p>2 digit month during which data was logged</p>
http://lod.bco-dmo.org/id/dataset-parameter/827080.rdf
Name: Day
Units: None
Description: <p>2 digit day of the month during which data was logged</p>
http://lod.bco-dmo.org/id/dataset-parameter/827081.rdf
Name: Hour
Units: None
Description: <p>2 digit hour of the day (24 hour clock) during which data was logged</p>
http://lod.bco-dmo.org/id/dataset-parameter/827082.rdf
Name: Min
Units: None
Description: <p>2 digit minute of the hour during which data was logged</p>
http://lod.bco-dmo.org/id/dataset-parameter/827083.rdf
Name: Tot_Count
Units: counts
Description: <p>Total numbers of counts logged by the RAD7 during the cycle</p>
http://lod.bco-dmo.org/id/dataset-parameter/827084.rdf
Name: Live_Time
Units: minutes
Description: <p>Time during which active counting occurred for the cycle</p>
http://lod.bco-dmo.org/id/dataset-parameter/827085.rdf
Name: Win_A_pcnt
Units: percent
Description: <p>Percentage of total counts falling in Window A (radon sniff mode)</p>
http://lod.bco-dmo.org/id/dataset-parameter/827086.rdf
Name: Win_B_pcnt
Units: percent
Description: <p>Percentage of total counts falling in Window B (thoron 1 window)</p>
http://lod.bco-dmo.org/id/dataset-parameter/827087.rdf
Name: Win_C_pcnt
Units: percent
Description: <p>Percentage of total counts falling in Window C (radon Po-214 window)</p>
http://lod.bco-dmo.org/id/dataset-parameter/827088.rdf
Name: Win_D_pcnt
Units: percent
Description: <p>Percentage of total counts falling in Window D (thoron 2 window)</p>
http://lod.bco-dmo.org/id/dataset-parameter/827089.rdf
Name: HV
Units: volts
Description: <p>High voltage level</p>
http://lod.bco-dmo.org/id/dataset-parameter/827090.rdf
Name: HV_duty_cycle
Units: percent
Description: <p>High voltage duty cycle</p>
http://lod.bco-dmo.org/id/dataset-parameter/827091.rdf
Name: Temp
Units: degrees Celsius
Description: <p>Air temperature within RAD7</p>
http://lod.bco-dmo.org/id/dataset-parameter/827092.rdf
Name: RelHumidity
Units: percent
Description: <p>Relative humidity of sampled air</p>
http://lod.bco-dmo.org/id/dataset-parameter/827093.rdf
Name: Leak_curr
Units: milliAmps
Description: <p>Leakage current</p>
http://lod.bco-dmo.org/id/dataset-parameter/827094.rdf
Name: Batt_Volt
Units: volts
Description: <p>Battery voltage</p>
http://lod.bco-dmo.org/id/dataset-parameter/827095.rdf
Name: Pump_Curr
Units: milliAmps
Description: <p>Air pump current draw</p>
http://lod.bco-dmo.org/id/dataset-parameter/827096.rdf
Name: Flags_Byte
Units: unitless
Description: <p>Bit 0 indicates whether pump is in Timed Mode; Bit 1 indicates whether pump is On continuously; Bit 2 is not defined; Bit 3 indicates whether tone is in Geiger mode; Bit 4 indicates whether beeper is activated; Bit 5 indicates if spectrum will print after each test; Bit 6 indicates if there are multiple (recycle) tests; Bit 7 indicates whether RAD7 is in Sniff test mode</p>
http://lod.bco-dmo.org/id/dataset-parameter/827097.rdf
Name: Bq_m3
Units: becquerels per cubic meter (Bq/m3)
Description: <p>Radon Concentration in sampled air</p>
http://lod.bco-dmo.org/id/dataset-parameter/827098.rdf
Name: Error_2sigma
Units: becquerels per cubic meter (Bq/m3)
Description: <p>2-sigma uncertainty of the radon concentration in sampled air</p>
http://lod.bco-dmo.org/id/dataset-parameter/827099.rdf
Name: Units_Byte
Units: unitless
Description: <p>Bits 0 and 1 indicate the concentration unit: 00 = counts per minute; 01 = number of counts; 10 = Bq/m3; 11 = pCi/L; Bit 2 through Bit 6 are not defined; Bit 7 indicates the temperature unit (0 = deg. F; 1 = deg. C)</p>
http://lod.bco-dmo.org/id/dataset-parameter/827100.rdf
Name: Elapsed_Time
Units: minutes
Description: <p>Amount of time elapsed into the entire measurement</p>
http://lod.bco-dmo.org/id/dataset-parameter/827101.rdf
Name: Count_Rate_Win_A_cpm
Units: counts per minute
Description: <p>The total counts multiplied by the % in window A (divided by 100); then divided by the Live_Time</p>
http://lod.bco-dmo.org/id/dataset-parameter/827102.rdf
Name: Win_A_error
Units: counts per minute
Description: <p>1-sigma uncertainty of the Window A count rate (taken as the square root of the total counts multiplied by the % in window A (divided by 100); all of which is then divided by the Live Time)</p>
http://lod.bco-dmo.org/id/dataset-parameter/827103.rdf
Name: Rn_Activity_Air_dpm_L
Units: decays/minute/liter (dpm/L)
Description: <p>Radon activity in the air calculated as the count rate in window A divided by the RAD7 Sniff Mode sensitivity; then multiplied by 2.22 to convert from pCi/L to dpm/L</p>
http://lod.bco-dmo.org/id/dataset-parameter/827104.rdf
Name: Air_error
Units: decays/minute/liter (dpm/L)
Description: <p>1-sigma uncertainty of the radon activity in the air (taken as column AB divided by the RAD7 Sniff mode sensitivity then multiplied by 2.22 to convert from pCi/L to dpm/L</p>
http://lod.bco-dmo.org/id/dataset-parameter/827105.rdf
Name: Water_Temp
Units: degrees Celsius
Description: <p>Temperature of the water; measured via an Onset Corp. HOBO water level logger</p>
http://lod.bco-dmo.org/id/dataset-parameter/827106.rdf
Name: Conversion_Factor
Units: unitless
Description: <p>Solubility coefficient for radon; calculated as 0.105+0.405*EXP(-0.0502*Water Temp)</p>
http://lod.bco-dmo.org/id/dataset-parameter/827107.rdf
Name: Rn_Activity_Water_dpm_L
Units: decays/minute/liter (dpm/L)
Description: <p>Radon activity in the water calculated as the radon activity in air multiplied by the solubility coefficient</p>
http://lod.bco-dmo.org/id/dataset-parameter/827108.rdf
Name: Water_error
Units: decays/minute/liter (dpm/L)
Description: <p>1-sigma uncertainty of the radon activity in the water (taken as column AD multiplied by the solubility coefficient</p>
http://lod.bco-dmo.org/id/dataset-parameter/827109.rdf
Name: Smoothed
Units: decays/minute/liter (dpm/L)
Description: <p>3-point smoothing function for the radon activity in water</p>
http://lod.bco-dmo.org/id/dataset-parameter/827110.rdf
Name: pcnt_Equilibration
Units: percent
Description: <p>Percentage of radon activity in water measured by the Bell relative to that measured by the Exchanger (control)</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
https://osprey.bco-dmo.org/dataset/827014/data/download
download
onLine
dataset
<p>See methodology outlined in Peterson et al., 2013 (Journal of Radioanalytical and Nuclear Chemistry). The sparging chamber is connected to a commercially-available radon-in-air monitor (RAD7; Durridge Co.) via a closed air loop.&nbsp; Air exiting the RAD7 circulates to the bottom of the sparging chamber where it enters via aquarium bubblers.&nbsp; The bubbles rise through the sparging chamber and accumulate in a headspace, from which air is pumped through desiccant back to the RAD7.&nbsp;&nbsp;</p>
<p>Our control to which we compare the sparging chamber is the commercially-available RAD-Aqua (Durridge Co.) which sprays a water sample into a chamber rather than using bubbles.&nbsp; Otherwise, the setups are similar.</p>
<p>Data contained herein are various laboratory testing configurations to optimize dimensions of the sparging chamber, number and type of bubblers, and any benefits from adding an additional sprayer capability to the top of the sparging chamber.&nbsp; All configurations tested are accompanied by a number of replicates.</p>
Specified by the Principal Investigator(s)
<p><strong>BCO-DMO Processing Notes:</strong><br />
- data submitted in 57 Excel files, Sheet name "Bell_2675"&nbsp;and an Excel file "Sample Summary.xlsx", sheet "Run Summary",&nbsp;and extracted to csv<br />
- the 57 files were concatenated and joined with the summary file, adding&nbsp;columns: Date, Chamber, Bubblers, Sprayer_Status, Water_Source, Bell_RAD7_SN, Exchanger_RAD7_SN.<br />
- added conventional header with dataset name, PI name, version date<br />
- modified parameter names to conform with BCO-DMO naming conventions<br />
- added 'ISO_DateTIme' column, re-formatted date from m/d/yyyy to yyyy-mm-dd<br />
- in 'Chamber' column, replaced " with -inch<br />
- replaced&nbsp;#DIV/0! with nd for /no data'<br />
- formatted date-time column to ISO_DateTime (yyyy-mm-ddTHH:MM:SS)</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
RAD7 radon-in-air monitors (Durridge Co.)
RAD7 radon-in-air monitors (Durridge Co.)
PI Supplied Instrument Name: RAD7 radon-in-air monitors (Durridge Co.) PI Supplied Instrument Description:Data presented here were analyzed with 4 different RAD7 radon-in-air monitors (Durridge Co.). These instruments were calibrated annually by the manufacturer. Relevant serial numbers and corresponding Sniff Mode Sensitivities (in pCi/L) are:
2172: 0.236
2604: 0.383
2675: 0.224
2685: 0.401
Instrument Name: RAD-7 Radon Detector Instrument Short Name:RAD7 Instrument Description: The DURRIDGE RAD7 is a radon and thoron detector. The RAD7 is a computer-driven electronic detector, with pre-programmed set-ups for common tasks. It's built to withstand everyday use in the field. A rugged case encloses the detector, which is self-contained and self-sufficient. The RAD7 comes with a built-in air pump, rechargeable batteries, and a wireless infrared printer. (https://durridge.com/products/rad7-radon-detector/)
HOBO water level data logger (Onset Corp.)
HOBO water level data logger (Onset Corp.)
PI Supplied Instrument Name: HOBO water level data logger (Onset Corp.) Instrument Name: Temperature Logger Instrument Short Name: Instrument Description: Records temperature data over a period of time.