Dataset: N2fix_CO2 CTD Profiles

Name: CTD Profiles near Station ALOHA from R/V Kilo Moana KM1016, KM1110 in the North Pacific Subtropical Gyre near Station ALOHA from 2010-2011 (DIAZOTROPHS-CO2 project)
Published: 2013-08-06
Keywords: oceans

Cite This Dataset

Spatial Extent: N:25.5803 E:-157.8195 S:21.4436 W:-160.8671

Project:

Oceanic diazotroph community structure and activities in a high carbon dioxide world (DIAZOTROPHS-CO2)

Program:

Ocean Carbon and Biogeochemistry (OCB)

Principal Investigator:

Matthew J. Church (University of Hawai'i, UH)

Version:

6 August 2013

Version Date:

2013-08-06

Validated:

Current State:

Final no updates expected

CTD Profiles near Station ALOHA from R/V Kilo Moana KM1016, KM1110 in the North Pacific Subtropical Gyre near Station ALOHA from 2010-2011 (DIAZOTROPHS-CO2 project)

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Description

The dataset contains CTD casts taken during two deployments -- KM1016 (August 2010 ) and KM110 (March 2011 ). It includes biogeochemical measurements used to characterize the area around Station ALOHA (22° 45’N, 158° 00’W) An assessment of dinitrogen fixation rates and nifH community structure appears as a separate dataset.

Methods & Sampling

Sampling and analytical methods were conducted following the field and laboratory protocols used by the Hawaii Ocean Time-series. These protocols can be found at:
http://hahana.soest.hawaii.edu/hot/protocols/protocols.html

Data Processing Description

The processing of the data was followed by the standard procedures of the HOT program:
http://hahana.soest.hawaii.edu/hot/protocols/protocols.html

Data Files

File
N2fix_CO2_CTD_profiles.csv (Comma Separated Values (.csv), 3.45 MB) MD5:7221ec34949a91977f81602cdcf70e89 Primary data file for dataset ID 4006

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-0850827

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
KM1016		2010-08-20	R/V Kilo Moana	Matthew J. Church (Chief Scientist)	data info
KM1110		2011-03-12	R/V Kilo Moana	Matthew J. Church (Chief Scientist)	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
cruise_id	Cruise Id	text	cruiseid
sta	Station Id	integer	sta
date	date sampling began	YYYYMMDD	date
time	time sampling began	hhmm	time
lon	longitude; negative denotes West	decimal degrees	lon
lat	latitude; negative denotes South	decimal degrees	lat
press	pressure; from CTD	decibars	press
temp	temperature; from CTD; ITS-90	degrees Celsius	temp
sal	salinity; from CTD; PSS-78 (PSU)	dimensionless	sal
fluor	fluorescence	milligrams/meter^3	fluor
O2	oxygen; dissolved from SBE 43	umol/kg	O2
pig_tot	total concentration of chlorophyll pigment	micrograms/liter	pig_tot
PAR	Photosynthetically Active Radiation	volts	PAR
q_flag	WOCE CTD format quality word containing an integer for each parameter which corresponds to the quailty of that measurement	bytes	q_flag
year	Year of sample	YYYY	year
month	month of sample	MM	month
day	day of sample	DD	day

Status message

Database

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Dataset: N2fix_CO2 CTD Profiles