Dataset: Global Ocean POM Data Ratios

Name: Global ocean Particulate Organic Matter (POM) ratios from 1971-2014 (Biological C:N:P ratios project, Global POM project)
Published: 2020-12-21
Keywords: oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.526747.2

Spatial Extent: N:74.39 E:179.93 S:-78 W:-179.99

Temporal Extent: 1971-03-15 - 2010-07-12

Project:

Biological Controls on the Ocean C:N:P ratios (Biological C:N:P ratios)

Concentrations and ratios of particulate organic carbon, nitrogen, and phosphorus in the global ocean (Global POM)

Program:

Dimensions of Biodiversity (Dimensions of Biodiversity)

Ocean Carbon and Biogeochemistry (OCB)

Historical Datasets (Historical)

Principal Investigator:

Michael W. Lomas (Bigelow Laboratory for Ocean Sciences)

Adam Martiny (University of California-Irvine, UC Irvine)

Contact:

Adam Martiny (University of California-Irvine, UC Irvine)

BCO-DMO Data Manager:

Nancy Copley

Stephen R. Gegg (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2020-12-21

Restricted:

Validated:

Yes

Current State:

Under revision

Global ocean Particulate Organic Matter (POM) ratios from 1971-2014 (Biological C:N:P ratios project, Global POM project)

Abstract:

Global Ocean POM Data Ratios from 1971-2014 (Biological C:N:P ratios project, Global POM project)

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2020-12-21	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.526747.2	2020-12-23

Description

Concentrations and ratios of particulate organic carbon, nitrogen, and phosphorus in the global ocean.

When using this data, please cite the original publication:
Martiny AC, Vrugt JA, Lomas MW (2014) Concentrations and ratios of particulate organic carbon, nitrogen, and phosphorus in the global ocean. Scientific Data 1:140048. http://dx.doi.org/10.1038/sdata.2014.48

Additionally, please cite the Dryad data package:
Martiny AC, Vrugt JA, Lomas MW (2014) Data from: Concentrations and ratios of particulate organic carbon, nitrogen, and phosphorus in the global ocean. Dryad Digital Repository. http://dx.doi.org/10.5061/dryad.d702p

Methods & Sampling

Marine particulate organic carbon (POC), nitrogen (PON), and phosphorus (POP) from 70 cruises or time-series during the last 40 years are reported.

Nearly all POC and PON measurements were done by collecting seawater particles onto glass-fibers filters (i.e., GF/F) and quantified using a combustion GC-IR based elemental analyzer68. The only exceptions were ‘EUMELI’ and ‘OLIPAC’, where PON was measured using a chemical oxidation technique38. Particulate phosphorus was quantified using the ash-hydrolysis method26,69. We operationally defined station IDs as samples taken within a 1°×1° area on the same day11.

The data was gathered by searching available databases (i.e., PANGAEA, BCO-DMO, JGOFS, and IFREMER) as well as published literature. We aggregated all available datasets in order to create the most exhaustive global description of particulate organic nutrients and thus did not exclude any specific cruises or time-series. The only data excluded were samples subjected to a prior manipulation or incubation.

Data Processing Description

BCO-DMO Processing Notes
- Generated from original file: "CNP_data.xlsx" contributed by Adam Martiny
- Single column for Date inserted with combined Year, Month, Day formatted as YYYYMMDD
- Parameter names edited to conform to BCO-DMO naming convention found at Choosing Parameter Name
- Identified “Station” column as “Dataset_Station” since the station ids here don't agree with other data from similarly named datasets
- Padded decimal places to two places where appropriate
- Standardized bad data value at “nd”
- Note: Some non standard dates/times contained in original data contributed were changed to 'nd (no datda).

Data Files

File
POM_Data.csv (Comma Separated Values (.csv), 2.58 MB) MD5:7a2ab7fb9f360ca44bcca47785309088 Primary data file for dataset ID 526747

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-0928544
NSF Division of Ocean Sciences	OCE-1046297
NSF Division of Ocean Sciences	OCE-1045966
NSF Division of Ocean Sciences	OCE-1258836
NSF Division of Ocean Sciences	OCE-0752366

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
Global_POM		1997-01-01	UC-Irvine Martiny	Michael W. Lomas (Principal Investigator) Adam Martiny (Principal Investigator)	data info

Instruments

CHN Elemental Analyzer

Supplied Name: CHN_EA

Supplied Description:

Nearly all particulate carbon and nitrogen measurements were done using by collecting seawater particles onto glass-fibers filters (i.e., GF/F) and quantified using an elemental analyzer. Particulate phosphorus was quantified using the ash-hydrolysis method

Instrument Type

Generic Name: CHN Elemental Analyzer

Acronym: CHN_EA

Generic Description:

A CHN Elemental Analyzer is used for the determination of carbon, hydrogen, and nitrogen content in organic and other types of materials, including solids, liquids, volatile, and viscous samples.

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
Dataset	Dataset – Cruise or Time Series Dataset Identifier	text	dataset_id
Dataset_Station	Dataset_Station BCO-DMO Note: Station numbers are unique to this dataset. They do not correspond to station ids/numbers for other data from Projects with the same DataSet name.	dimensionless	station
Date	Date	YYYYMMDD	date
Depth	Sample Depth	meters	depth
Latitude	Station Latitude (South is negative)	dec degs	lat
Longitude	Station Longitude (West is negative)	dec degs	lon
POP	Particulate Organic Phosphorus (POP)	umol L-1	no_bcodmo_term
PON	Particulate Organic Nitrogen (PON)	umol L-1	PON
POC	Particulate Organic Carbon (POC)	umol L-1	POC

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Database

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Dataset: Global Ocean POM Data Ratios