Dataset: LDEO global surface ocean carbon

Name: Upper 50m alkalinity, TCO2, nutrient data in a global model from 2011-2013 (Climatological Mean Distribution of pH project)
Published: 2013-06-10
Keywords: oceans

Cite This Dataset

Spatial Extent: N:78.772 E:22.887 S:-78.125 W:20.971

Project:

Climatological Mean Distribution of pH in Surface Waters in the Unified pH Scale and Mean Rate of changes in Selected Areas (Climatological Mean Distribution of pH)

Program:

Science, Engineering and Education for Sustainability NSF-Wide Investment (SEES): Ocean Acidification (formerly CRI-OA) (SEES-OA)

Principal Investigator:

Taro Takahashi (Lamont-Doherty Earth Observatory, LDEO)

Contact:

Stewart C. Sutherland (Lamont-Doherty Earth Observatory, LDEO)

BCO-DMO Data Manager:

Nancy Copley (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version Date:

2013-06-10

Validated:

Yes

Current State:

Final no updates expected

Upper 50m alkalinity, TCO2, nutrient data in a global model from 2011-2013 (Climatological Mean Distribution of pH project)

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Description

This dataset was assembled for the purpose of testing the mutual consistency of the TA-TCO2-pCO2 observations in surface ocean water using an inorganic carbon chemistry model.

The potential alkalinity-salinity relationships in 33 oceanic regions were obtained using this datasat. These relationships were used to map the distribution of the total alkalinity (= potential alkalinity - nitrate concentration) over the global oceans.

Associated dataset: LDEO surface gridded carbon parameters.

Maps of global estimated pH

Methods & Sampling

Carbon-nutrient database assembled from the GLODAP, CARINA and LDEO data sets for surface ocean.

Data Files

File
pH_obs_bydate.csv (Comma Separated Values (.csv), 1.54 MB) MD5:fc7dcd5eff2a4aa6e924ecdf2fc62c39 Primary data file for dataset ID 3963

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1038891

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
Takahashi_LDEO		2011-01-01	LDEO	Taro Takahashi (Principal Investigator)	data info

Instruments

None available yet

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
lat	Latitude; North is positive	decimal degrees	lat
lon	Longitude; East is positive	decimal degrees	lon
day	Day of the month	unitless	day
month	Month of the year (Jan = 1 Feb = 2 etc.)	unitless	month
year	Calendar year	unitless	year
press	Pressure	decibars	press
temp	Temperature	degrees Celsius	temp
sal	Salinity (Practical Salinity Scale)	unitless	sal
O2_umol_kg	dissolved Oxygen	micromoles per kilogram seawater	O2_umol_kg
NO3	Nitrate	micromoles per kilogram seawater	NO3
NO2	Nitrite	micromoles per kilogram seawater	NO2
SiO3	Silicate	micromoles per kilogram seawater	no_bcodmo_term
PO4	Phosphate	micromoles per kilogram seawater	PO4
Freon_11	Freon 11	picomoles per kilogram seawater	no_bcodmo_term
Freon_12	Freon 12	picomoles per kilogram seawater	no_bcodmo_term
TCO2_kg	Observed Total CO2	micromoles per kilogram seawater	TCO2
TALK	Observed Total Alkalinity	microequivalents per kilogram seawater	TALK
PCO2	Observed Partial Pressure of CO2 at temp_PCO2 temperature	microatmospheres	pCO2
temp_PCO2	Temperature at which pCO2 was measured	degrees Celsius	pCO2_temp
PCO2_sst	Partial Pressure of CO2 at seawater temperature	microatmospheres	pCO2

Status message

Database

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Dataset: LDEO global surface ocean carbon