http://lod.bco-dmo.org/id/dataset/774459
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
2019-08-06
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
CTD sensor data from two cruises from R/V Robert Gordon Sproul SP1714 in the California Current waters off the coast of Southern California and Baja California from 2017-2018
2023-11-29
publication
2023-11-29
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2023-11-29
publication
https://doi.org/10.26008/1912/bco-dmo.774459.1
Kevin R. Arrigo
Stanford University
principalInvestigator
Jonathan P. Zehr
University of California-Santa Cruz
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: Arrigo, K. R., Zehr, J. P. (2023) CTD sensor data from two cruises from R/V Robert Gordon Sproul SP1714 in the California Current waters off the coast of Southern California and Baja California from 2017-2018. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2023-11-29 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.774459.1 [access date]
CTD sensor data from two cruises Dataset Description: <p>CTD sensor data from two cruises on which&nbsp;experiments were conducted. The experimental data related to this dataset can be found at BCO-DMO dataset&nbsp;UCYN-A Host activity (see related dataset).</p> Methods and Sampling: <p>Samples were collected using standard oceanographic techniques. A CTD Rosette with 24 10L Niskin bottles was lowered to the maximum sampling depth and then brought back to the surface. Data submitted from CTD is downcast data only.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1559165 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1559165
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1559152 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1559152
completed
Kevin R. Arrigo
Stanford University
650-723-3599
Department of Earth System Science/ Y2E2 Building Room 141
Stanford
CA
94305
USA
arrigo@stanford.edu
pointOfContact
Jonathan P. Zehr
University of California-Santa Cruz
831-459 4009
E&MS A438, Ocean Sciences Department 1156 High Street
Santa Cruz
CA
95064
USA
zehrj@ucsc.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Cruise
Station
Cast
Lat
Lon
Depth
Press
Temp1
Temp2
Sal1
Sal2
O2
Fluor
Par
SigTheta1
SigTheta2
Time_elapsed
Depth_bot
Density
Pot_temp1
Pot_temp2
CTD Rosette
theme
None, User defined
No BCO-DMO term
station number
cast
latitude
longitude
depth
water temperature at measurement depth
salinity
dissolved Oxygen
fluorescence
PAR
sigma-theta potential density
time_elapsed
depth_bottom
potential temperature
featureType
BCO-DMO Standard Parameters
CTD - profiler
instrument
BCO-DMO Standard Instruments
SP1714
SP1727
service
Deployment Activity
California Current waters off the coast of Southern California and Baja California
Southern California Current waters
place
Locations
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: Biogeochemical significance of the abundant, uncultivated symbiotic cyanobacteria UCYN-A
https://osprey.bco-dmo.org/project/699979
Collaborative Research: Biogeochemical significance of the abundant, uncultivated symbiotic cyanobacteria UCYN-A
<p><em>NSF Award Abstract:</em><br />
Nitrogen is a nutrient whose availability limits growth and productivity of ecosystems. Nitrogen is extremely abundant in the atmosphere in the inert form of gaseous N2, but most organisms cannot reduce N2 into a biologically available form. In all environments, including agricultural soils, there are microorganisms that can make available the N from gaseous N2 by reducing it to the biologically available form, ammonium. In the vast expanses of the open ocean, few organisms are known to have this ability, and recently a unique symbiosis between a single-celled cyanobacterium and a single-celled algae was discovered, which appears to be very widely distributed and likely of global biogeochemical significance. The cyanobacterium in this symbiotic partnership has very unusual metabolism and genomic streamlining. Little is known of the symbiosis because it is not detectable except by modern molecular biological techniques. Recent work has shown this symbiosis to be very widely spread through the oceans, and that there is previously unrecognized diversity in both the cyanobacterial and algal hosts. This research will examine the environmental distributions and the biogeochemical significance of this diversity in coastal US waters. The investigators will engage the public in ocean sciences through internship programs at local high schools and for undergraduate students at Stanford, and by documenting their field research in a 'virtual cruise' blog.</p>
<p>In the marine environment, the contribution of N2 fixation to the fixed nitrogen (N) pool is poorly quantified, in part due to an incomplete understanding on the abundance, activity, and physiology of diazotrophs. The symbiotic unicellular cyanobacteria (UCYN-A) is a poorly characterized, yet globally important, group of marine diazotrophs. UCYN-A is widely distributed in the marine environment, and lives symbiotically with a picoeukaryotic prymnesiophyte alga. We now know that there are multiple ecotypes of UCYN-A, which may be adapted to specific locations in the water-column and different oceanic provinces. Typically N2 fixation was considered unimportant in coastally influenced and non-tropical waters, however recent data shows that multiple subclades of UCYN-A are present. The distribution and rate of N2 fixation by UCYN-A subclades in coastal/nearshore environments is a major unknown in the oceanic N cycle. Its presence in nearshore waters may change the paradigm of the balance between basin N sources (N2 fixation) and sinks (denitrification). Likewise, significant N2 fixation by UCYN-A will need to be considered when determining estimates of new production in coastally influenced waters. This project aims to quantify the significance of different UCYN-A subclades to coastal/nearshore N budgets. It tackles the issue of determining N2 fixation rates by different UCYN-A subclades in coastal waters through rigorous fieldwork off the west coast of North America. The temporal and spatial distribution of UCYN-A subclades, as well as the rates of N2 fixation, will be determined by coupling N2 fixation measurements of bulk communities and individual cells (nanoSIMS) with molecular assays to study these widespread, but dilute, diazotrophic symbionts and their hosts. Additionally the investigators will conduct experiments aimed at constraining the effects of light and nutrient ratios (N/P) on UCYN-A N2 fixation rates, and the prymnesiophyte host's rate of carbon fixation. They will conduct this work through seasonal sampling of a coastal site in the Southern California Bight (Scripps Pier) and on two process cruises in the coastal waters between central California and the Baja Peninsula. The cruise work will provide an opportunity to understand the temporal dynamics of the UCYN-A/prymnesiophyte associations over larger spatial scales. Finally, evidence suggests that unidentified UCYN-A subclades and hosts exist and the investigators have developed a strategy to identify and quantify their temporal and spatial distributions as well as their N2 fixation activities. Data on the coastal distribution, ecology and activity of UCYN-A is critical for obtaining a better understanding of their contribution to fixed N to the marine environment. The group-specific and bulk rates of N2 fixation measured in this study of coastally influenced waters, will provide data for future modeling efforts, which will make an important contribution to constraining oceanic N2 fixation inputs.</p>
BSUCS
largerWorkCitation
project
eng; USA
oceans
California Current waters off the coast of Southern California and Baja California; Southern California Current waters
-120.25384
-114.92768
28.28743
33.82444
2017-05-03
2018-05-12
California Current waters off the Southern California shelf
0
BCO-DMO catalogue of parameters from CTD sensor data from two cruises from R/V Robert Gordon Sproul SP1714 in the California Current waters off the coast of Southern California and Baja California from 2017-2018
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/915796.rdf
Name: Cruise
Units: unitless
Description: <p>cruise identifier</p>
http://lod.bco-dmo.org/id/dataset-parameter/915797.rdf
Name: Station
Units: unitless
Description: <p>station identifier</p>
http://lod.bco-dmo.org/id/dataset-parameter/915798.rdf
Name: Cast
Units: unitless
Description: <p>cast identifier</p>
http://lod.bco-dmo.org/id/dataset-parameter/915799.rdf
Name: Lat
Units: decimal degrees
Description: <p>latitude of observation. Positive values indicate North</p>
http://lod.bco-dmo.org/id/dataset-parameter/915800.rdf
Name: Lon
Units: decimal degrees
Description: <p>longitude of observation. Positive values indicate East</p>
http://lod.bco-dmo.org/id/dataset-parameter/915801.rdf
Name: Depth
Units: meters (m)
Description: <p>depth of observation</p>
http://lod.bco-dmo.org/id/dataset-parameter/915802.rdf
Name: Press
Units: decibars (db)
Description: <p>pressure of observation</p>
http://lod.bco-dmo.org/id/dataset-parameter/915803.rdf
Name: Temp1
Units: degrees Celsius
Description: <p>Water temperature from first sensor</p>
http://lod.bco-dmo.org/id/dataset-parameter/915804.rdf
Name: Temp2
Units: degrees Celsius
Description: <p>water temperature from second sensor</p>
http://lod.bco-dmo.org/id/dataset-parameter/915805.rdf
Name: Sal1
Units: practical salinity units (PSU)
Description: <p>salinity from first sensor</p>
http://lod.bco-dmo.org/id/dataset-parameter/915806.rdf
Name: Sal2
Units: practical salinity units (PSU)
Description: <p>salinity from second sensor</p>
http://lod.bco-dmo.org/id/dataset-parameter/915807.rdf
Name: O2
Units: mililiters per liter (ml/L)
Description: <p>oxygen from SBE 43</p>
http://lod.bco-dmo.org/id/dataset-parameter/915808.rdf
Name: Fluor
Units: miligrams per meter cubed (mg/m3)
Description: <p>fluorescence</p>
http://lod.bco-dmo.org/id/dataset-parameter/915809.rdf
Name: Par
Units: percent
Description: <p>Photosythetically active radiation (PAR)</p>
http://lod.bco-dmo.org/id/dataset-parameter/915810.rdf
Name: SigTheta1
Units: kilograms per meter cubed (kg/m3)
Description: <p>sigma-theta density from first sensor</p>
http://lod.bco-dmo.org/id/dataset-parameter/915811.rdf
Name: SigTheta2
Units: kilograms per meter cubed (kg/m3)
Description: <p>sigma-theta density from second sensor</p>
http://lod.bco-dmo.org/id/dataset-parameter/915812.rdf
Name: Time_elapsed
Units: seconds (s)
Description: <p>time elapsed</p>
http://lod.bco-dmo.org/id/dataset-parameter/915813.rdf
Name: Depth_bot
Units: meters (m)
Description: <p>bottom depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/915814.rdf
Name: Density
Units: kilograms per meter cubed (kg/m3)
Description: <p>density sigma-theta</p>
http://lod.bco-dmo.org/id/dataset-parameter/915815.rdf
Name: Pot_temp1
Units: degrees Celsius
Description: <p>Potential temperature sensor 1</p>
http://lod.bco-dmo.org/id/dataset-parameter/915816.rdf
Name: Pot_temp2
Units: degrees Celsius
Description: <p>Potentia temperature sensor 2</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
726861
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/2fb515f9-f946-492e-b4d4-234fc1821592/content
download
https://doi.org/10.26008/1912/bco-dmo.774459.1
download
onLine
dataset
<p>Samples were collected using standard oceanographic techniques. A CTD Rosette with 24 10L Niskin bottles was lowered to the maximum sampling depth and then brought back to the surface. Data submitted from CTD is downcast data only.</p>
Specified by the Principal Investigator(s)
<p>BCO-DMO Processing Notes:<br />
-&nbsp;added conventional header with dataset name, PI name, version date<br />
- modified parameter names to conform with BCO-DMO naming conventions<br />
- removed duplicate depth columns<br />
- removed duplicate sigma_theta columns</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
CTD Rosette
CTD Rosette
PI Supplied Instrument Name: CTD Rosette PI Supplied Instrument Description:A CTD Rosette with 24 10L Niskin bottles was lowered to the maximum sampling depth and then brought back to the surface. Instrument Name: CTD - profiler Instrument Short Name: Instrument Description: The Conductivity, Temperature, Depth (CTD) unit is an integrated instrument package designed to measure the conductivity, temperature, and pressure (depth) of the water column. The instrument is lowered via cable through the water column. It permits scientists to observe the physical properties in real-time via a conducting cable, which is typically connected to a CTD to a deck unit and computer on a ship. The CTD is often configured with additional optional sensors including fluorometers, transmissometers and/or radiometers. It is often combined with a Rosette of water sampling bottles (e.g. Niskin, GO-FLO) for collecting discrete water samples during the cast.
This term applies to profiling CTDs. For fixed CTDs, see https://www.bco-dmo.org/instrument/869934. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/130/
Cruise: SP1714
SP1714
R/V Robert Gordon Sproul
Community Standard Description
International Council for the Exploration of the Sea
R/V Robert Gordon Sproul
vessel
SP1714
Matthew M. Mills
Stanford University
Cruise: SP1727
SP1727
R/V Robert Gordon Sproul
Community Standard Description
International Council for the Exploration of the Sea
R/V Robert Gordon Sproul
vessel
SP1727
Matthew M. Mills
Stanford University
R/V Robert Gordon Sproul
Community Standard Description
International Council for the Exploration of the Sea
R/V Robert Gordon Sproul
vessel