Identification

Title

HLY-02-03 Primary Production (Excel) [Hill, V.]

Alternative title(s)

62.201

Abstract

Primary productivity was measured by 14C (carbon) uptake fixation with simulated in situ (SIS) incubations. Isotope stocks were prepared according to the recommendations of Fitzwater et al., 1982. Our SIS incubator had neutral density and/or blue plastic filters to simulate in situ irradiance spectra at depths consistent with sample collection. Temperature was regulated with flowing surface seawater. Samples were placed in 280ml polycarbonate bottles and inoculated with 370 kBq 14C-NaHCO3 and incubated for short period (S) 6-8 hours and long period (L) ~24 hours. Total activity added and particulate adsorption was measured at time zero in parallel samples. Particulate material was harvested on 25mm Whatman GF/F filters and rinsed with 5-10ml of 0.01 N HCL in filtered seawater to remove inorganic carbon. Radioactivity was assayed by liquid scintillation counting and corrected for particulate adsorption at time zero, background and counting efficiency. Dataset includes hourly (mg C m-3 h-1) and daily rates (mg C m-2 d-1) of 14C uptake measured with both short and long incubation periods with matching chlorophyll (mg m- 3) measuring using the fluorometric method of Holm-Hansen (1965) by Dean Stockwell of the University of Alaska, Fairbanks. An ASCII version of this dataset is available as a companion dataset. These Excel data were collected aboard the U.S. Coast Guard Cutter (USCGC) Healy cruise HLY-02-03.

Resource type

dataset

Resource locator

https://data.eol.ucar.edu//dataset/62.201

protocol: https

description: Dataset homepage

https://data.eol.ucar.edu/cgi-bin/codiac/fgr_form/id=62.201

protocol: https

description: Dataset order request form. Data files are made available via FTP.

function: order

Unique resource identifier

code

62.201

codeSpace

Dataset language

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

oceans

Keywords

Keyword set

keyword value

dataset

originating controlled vocabulary

title

Resource Type

reference date

date type

revision

effective date

2014-10-16

Keyword set

keyword value

Ships

USCGC Healy - HLY

Keyword set

keyword value

Hydrography

Ship

Arctic

Production

Keyword set

keyword value

EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > PRIMARY PRODUCTION

EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON

EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL

originating controlled vocabulary

title

Global Change Master Directory (GCMD)

reference date

date type

revision

effective date

2018-02-27

Geographic location

West bounding longitude

-180.00000

East bounding longitude

-130.00000

North bounding latitude

80.00000

South bounding latitude

60.00000

Temporal reference

Temporal extent

Begin position

2002-07-18T00:00:00Z

End position

2002-08-21T23:59:59Z

Dataset reference date

date type

publication

effective date

2008-12-17T12:38:18Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

none

Limitations on public access

none

Responsible organisations

Responsible party

contact position

EOL Data Support

organisation name

UCAR/NCAR - Earth Observing Laboratory

full postal address

PO Box 3000

Boulder

80307-3000

email address

datahelp@eol.ucar.edu

web address

https://data.eol.ucar.edu/

responsible party role

pointOfContact

Responsible party

organisation name

Old Dominion University

full postal address

Dept. of Ocean Earth and Atmos. Sci 4600 Elkhorn Ave

Norfolk

23529

telephone number

(757)683-4911

email address

vhill@odu.edu

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

contact position

EOL Data Support

organisation name

UCAR/NCAR - Earth Observing Laboratory

full postal address

PO Box 3000

Boulder

80307-3000

email address

datahelp@eol.ucar.edu

web address

https://data.eol.ucar.edu/

responsible party role

pointOfContact

Metadata date

2024-02-07T22:47:58Z

Metadata language

eng; USA