Dataset: N2fix_CO2 Water Samples
Deployment: KM1110

Water samples from DIAZOTROPHS_CO2 cruises KM1016 and KM1110

Principal Investigator:

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

Co-Principal Investigator:

Ricardo Letelier (Oregon State University, OSU-CEOAS)

BCO-DMO Data Manager:

Theresa McKee (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

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

Current State:

Final no updates expected

Version:

19 August 2013

Version Date:

2013-08-19

Data URL:

https://www.bco-dmo.org/dataset-deployment/456067/data

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Description

Biogeochemical data from water samples collected in the area around Station ALOHA (22° 45’N, 158° 00’W) during the summer (August 2010) and spring period (March 2011) . An assessment of dinitrogen fixation rates and nifH community structure are published as a separate dataset.

Methods & Sampling

Dataset acquisition description

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

Dataset 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

More information about this dataset deployment

Funding

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

Instruments

Niskin bottle

Supplied Description:

Instrument Type

Generic Name: Niskin bottle

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/

Generic Description:

A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
cruise_id	Cruise identifier	text	cruise_id
sta	station identifier	integer	sta
cast	cast number	integer	cast
date	date of sample	YYYYMMDD	date
year	year of sample	YYYY	year
month	month of sample	MM	month
day	day of sample	DD	day
time	time of sample	HHMM	time
lat	latitude of sample	degrees	lat
lon	longitude of sample	degrees	lon
bot_NIS	Niskin bottle number	integer	bot_Nis
depth	depth of sample	meters	depth
potemp	Potential Temperature	ITS-90	potemp
density	Density	kg/m3	density
DIC	Dissolved Organic Carbon	umol/L	DIC
TALK	Total Alkalinity	umol/L	TALK
pH	pH	dimensionless	pH
chl_a	chlorophyll_A	ug/L	chl_a
PO4	Particulate Phosphate	umol/L	PO4
NO3_NO2	Nitrate plus Nitrite	umol/L	NO3_NO2
SiO4	Silicate	umol/L	SiO4
LLP	Low-level Phosphorus	ng/L	LLP
PP	Primary Production	nmol/L	PP
UCYN_A	UCYN_A count	copies/L	UCYN_A
crocos	crocosphaera count	copies/L	crocos
tricho	trichodesmium count	copies/L	tricho
het_1	Heterocyst 1 count	copies/L	Het_1
het_2	Heterocyst 2 count	copies/L	Het_2
het_3	Heterocyst 3 count	copies/L	Het_3
taxon	taxonomic group	text	taxon
count	Number of individuals counted in sample or sample fraction	copies/liter	count

Database

Contribute Data

Dataset: N2fix_CO2 Water Samples
Deployment: KM1110

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: N2fix_CO2 Water SamplesDeployment: KM1110

Dataset acquisition description

Dataset Processing Description

Dataset: N2fix_CO2 Water Samples
Deployment: KM1110