http://lod.bco-dmo.org/id/dataset/1009751
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
2026-10-13
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
FT-ICR MS measurements from the National Geographic Endurance in the West Antarctic Peninsula in February 2025
2026-10-16
publication
2026-10-16
revision
Woods Hole Oceanographic Institution (WHOI BCO-DMO)
2026-10-16
publication
https://doi.org/10.26008/1912/bco-dmo.1009751.1
Patricia M. Medeiros
University of Georgia
principalInvestigator
Renato Castelao
University of Georgia
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: Medeiros, P. M., Castelao, R. (2026) FT-ICR MS measurements from the National Geographic Endurance in the West Antarctic Peninsula in February 2025. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2026-10-16 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.1009751.1 [access date]
FT-ICR MS measurements Dataset Description: <p>Sample collection conducted as part of the National Geographic-Lindblad Expeditions Visiting Scientist Program.</p> Methods and Sampling: <p>Surface water samples (upper 1 m) were collected using pre-cleaned 2 L polycarbonate (PC) Nalgene bottles aboard a Zodiac boat. All samples were filtered through 0.7 μm Whatman GF/F filters followed by 0.2 μm Pall Supor membrane filters. Aliquots were collected for dissolved organic carbon (DOC) and nutrient analyses and stored at −20°C and 4°C, respectively. Filtrates were acidified to pH 2 with concentrated HCl, and dissolved organic matter (DOM) was isolated using solid-phase extraction (SPE) cartridges (Agilent Bond Elut PPL) and subsequently eluted with methanol. Extracts were stored frozen at −20°C until analysis.</p>
<p>&nbsp;</p>
Funding provided by NSF Office of Polar Programs (formerly NSF PLR) (NSF OPP) Award Number: OPP-2512432 Award URL: https://www.nsf.gov/awardsearch/show-award/?AWD_ID=2512432
completed
Patricia M. Medeiros
University of Georgia
706-542-6744
Department of Marine Sciences
Athens
GA
30602-3636
USA
medeiros@uga.edu
pointOfContact
Renato Castelao
University of Georgia
706-542-2422
Department of Marine Sciences #252 Marine Sciences Bldg
Athens
GA
30602-3636
USA
castelao@uga.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
WAP_Sites
ISO_DateTime_UTC
Longitude
Latitude
mass_to_charge_ratio
intensity
Tesla Fourier transform ion cyclotron resonance mass spectrometer (FT-ICR MS)
theme
None, User defined
site
ISO_DateTime_UTC
longitude
latitude
mass-to-charge ratio (m/z)
Intensity (relative ion abundance)
featureType
BCO-DMO Standard Parameters
Fourier Transform Ion Cyclotron Resonance Mass Spectrometer
instrument
BCO-DMO Standard Instruments
ANTA: Journey to Antarctica: The White Continent
service
Deployment Activity
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.
RAPID: Impacts of Glacier Melting on Dissolved Organic Matter Dynamics in the West Antarctic Peninsula
https://osprey.bco-dmo.org/project/999485
RAPID: Impacts of Glacier Melting on Dissolved Organic Matter Dynamics in the West Antarctic Peninsula
<p>Glacier melting in polar regions can result in large amounts of freshwater being introduced into the coastal ocean, changing nutrient levels at the surface, impacting organisms like phytoplankton and influencing the distribution and composition of organic material in the water. In this project, researchers will participate in an expedition to the West Antarctic Peninsula in early 2025 that will approach several retreat glaciers, starting from the northern tip of the Peninsula and progressing toward its central region. The team will analyze physical, chemical, and biological changes in the area, and relate these changes to differences in melting trends that have been observed along the Peninsula. Results will help predict future impacts on the region due to increased melting associated with continued warming. The program will provide training for a graduate student and disseminate results of the study across a broad audience.</p>
<p>This project will examine the effects of meltwater input from tidewater glaciers on dissolved organic matter along the West Antarctic Peninsula. While glaciers near the northern tip of the Peninsula show no changes in grounding line discharge trends, several farther south, near Palmer Station, are characterized by significant changes, with discharge trends surging by a factor of 3 in many glaciers. This suggests a north-south gradient in the response of discharge rates to environmental forcing along the Peninsula, likely influencing the vertical flux of nutrients and affecting phytoplankton and the composition and lability of dissolved organic matter. The PIs will take advantage of a cruise-of-opportunity to the West Antarctic Peninsula in February 2025 to collect samples in transects approaching multiple tidewater glaciers, capturing the north-south gradient in discharge trends reported for the region. Samples of seawater and floating ice from glaciers will be analyzed for temperature, salinity, nutrients, chlorophyll, particulate and dissolved organic carbon concentrations and lability, and dissolved organic matter composition using ultrahigh-resolution mass spectrometry, optics and isotopic analyses. Variations in organic matter composition and lability will be identified and compared along the north-south gradient in discharge trends, which will inform how the system might respond to future increases in glacier melting. Results will also be compared with similar analyses currently being conducted in the Amundsen Sea and the Kerguelen Islands, collectively capturing the influence of meltwater originating from large ice sheets, tidewater glaciers and land-terminating glaciers. The project will support a graduate student who will be trained in the analysis of dissolved organic matter data.</p>
<p>This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.</p>
DOM Dynamics in the WAP
largerWorkCitation
project
eng; USA
oceans
-67.1736
-62.5692
-68.3162
-64.682
2025-02-04
2025-02-08
0
BCO-DMO catalogue of parameters from FT-ICR MS measurements from the National Geographic Endurance in the West Antarctic Peninsula in February 2025
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/1009848.rdf
Name: WAP_Sites
Units: unitless
Description: <p>site name</p>
http://lod.bco-dmo.org/id/dataset-parameter/1009849.rdf
Name: ISO_DateTime_UTC
Units: unitless
Description: <p>sampling datetime in ISO format and UTC timezone</p>
http://lod.bco-dmo.org/id/dataset-parameter/1009851.rdf
Name: Longitude
Units: decimal degrees
Description: <p>sampling longitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/1009853.rdf
Name: Latitude
Units: decimal degrees
Description: <p>sampling latitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/1009855.rdf
Name: mass_to_charge_ratio
Units: daltons (Da)
Description: <p>mass to charge ratio (m/z)</p>
http://lod.bco-dmo.org/id/dataset-parameter/1009856.rdf
Name: intensity
Units: unitless
Description: <p>peak intensity (normalized)</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://doi.org/10.26008/1912/bco-dmo.1009751.1
download
onLine
dataset
<p>Surface water samples (upper 1 m) were collected using pre-cleaned 2 L polycarbonate (PC) Nalgene bottles aboard a Zodiac boat. All samples were filtered through 0.7 μm Whatman GF/F filters followed by 0.2 μm Pall Supor membrane filters. Aliquots were collected for dissolved organic carbon (DOC) and nutrient analyses and stored at −20°C and 4°C, respectively. Filtrates were acidified to pH 2 with concentrated HCl, and dissolved organic matter (DOM) was isolated using solid-phase extraction (SPE) cartridges (Agilent Bond Elut PPL) and subsequently eluted with methanol. Extracts were stored frozen at −20°C until analysis.</p>
<p>&nbsp;</p>
Specified by the Principal Investigator(s)
<p>A 21 Tesla Fourier transform ion cyclotron resonance mass spectrometer (FT-ICR MS) operated in negative electrospray ionization mode at the National High Magnetic Field Laboratory (MagLab) was used for analysis.</p>
<p>FT-ICR MS data were collected using Predator Data Acquisition, and the spectra were calibrated using Predator Analysis v1.2.3. Software developed and distributed by the National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL. All rights reserved.</p>
Specified by the Principal Investigator(s)
This section documents curation actions performed prior to publication review with the submitter, and additional information relevant to understanding and reusing this dataset. It distinguishes changes made to the submitted (meta)data from unresolved issues and/or enhancements that improve future reuse and interoperability.
CURATION ACTIONS PERFORMED ON DATA
- Read 12 raw FT-ICR MS peak-list files (DOM_WAP_2025_Site#1_CLOSE.txt through DOM_WAP_2025_Site#4_MID.txt), which are whitespace-delimited text files with columns for m/z and intensity.
- Combined all 12 files into a single table. Site and location for each row were taken from the source file name.
- Joined sample date, time, latitude, and longitude matching on site and location.
- Converted the date and time from Argentina Standard Time (UTC-3) to UTC and stored them as ISO_DateTime_UTC (ISO 8601).
- The final file, 1009751_v1_fticrms.csv, contains: WAP_Sites, ISO_DateTime_UTC, Longitude, Latitude, mass_to_charge_ratio (m/z, Da), and intensity (unitless, normalized).
- Added original FT-ICR MS files as supplemental data.
CURATION ACTIONS PERFORMED ON METADATA
- Standard metadata entry and text formatting steps were performed.
ISSUES POTENTIALLY IMPACTING REUSE
- NA
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
Tesla Fourier transform ion cyclotron resonance mass spectrometer (FT-ICR MS)
Tesla Fourier transform ion cyclotron resonance mass spectrometer (FT-ICR MS)
PI Supplied Instrument Name: Tesla Fourier transform ion cyclotron resonance mass spectrometer (FT-ICR MS) PI Supplied Instrument Description:21 Tesla Fourier transform ion cyclotron resonance mass spectrometer (FT-ICR MS) operated in negative electrospray ionization mode at the National High Magnetic Field Laboratory (MagLab). Instrument Name: Fourier Transform Ion Cyclotron Resonance Mass Spectrometer Instrument Short Name:FTICR MS Instrument Description: In Fourier Transform Ion Cyclotron Resonance Mass Spectrometry, the mass-to-charge ratio (m/z) of an ion is experimentally determined by measuring the frequency at which the ion processes in a magnetic field. These frequencies, which are typically in the 100 KHz to MHz regime, can be measured with modern electronics making it possible to determine the mass of an ion to within +/- 0.000005 amu or 5 ppm.
Cruise: ANTA: Journey to Antarctica: The White Continent
ANTA: Journey to Antarctica: The White Continent
National Geographic Endurance
Community Standard Description
International Council for the Exploration of the Sea
National Geographic Endurance
vessel
National Geographic Endurance
Community Standard Description
International Council for the Exploration of the Sea
National Geographic Endurance
vessel