CTD and Water Chemistry data of the Eastern Pacific Redox Experiment of May - June 2000 (NODC Accession 0000833)

Metadata:

• Identification_Information
• Data_Quality_Information
• Distribution_Information
• Metadata_Reference_Information
• CoRIS

Identification_Information:

Citation:

Citation_Information:

Originator: Dr. Frank Sansone, University of Hawaii

Originator: Dr. Brian Popp, University of Hawaii

Publication_Date: Unknown

Title:

CTD and Water Chemistry data of the Eastern Pacific Redox Experiment of May - June 2000 (NODC Accession 0000833)

Series_Information:

Series_Name: None

Issue_Identification: None

Publication_Information:

Publication_Place: unpublished material

Publisher: unpublished material

Online_Linkage: https://www.ncei.noaa.gov/archive/accession/0000833

Description:

Abstract:

The Eastern Pacific Redox Experiment (EPREX) took place 24 May to 28 June 2000 on the R/V Roger Revelle. The first station was at the Hawaii Ocean Time Series "station ALOHA", 60 miles north of Oahu, Hawaii. The remaining five stations were spread along roughly 15N from 150W to 98W, near the Mexican coast. In addition to CTD data, various water chemistry parameters were aquired over multiple casts at each station down to about 2000 meters.

Purpose:

The goal of EPREX was to determine the relative importance of each mechanism of nitrous oxide production across a range of biogeochemical conditions.

Supplemental_Information:

Entry_ID Unknown Sensor_Name SeaBird Electronics CTD Profiler Sensor_Name Niskin bottles Sensor_Name laboratory analysis Source_Name R/v Roger Revelle Project_Campaign: Eastern Pacific Redox Experiment (EPREX) Originating_Center University of Hawaii Storage_Medium Excel, ASCII Online_size: 25.8 megabytes

Resource Description: NODC Accession Number 0000833

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20000524

Beginning_Time: 0500

Ending_Date: 20000628

Ending_Time: 1700

Currentness_Reference: ground conditions

Status:

Progress: Complete

Maintenance_and_Update_Frequency: as needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -158.0

East_Bounding_Coordinate: -98.0

North_Bounding_Coordinate: 22.7

South_Bounding_Coordinate: 15.0

Keywords:

Theme:

Theme_Keyword_Thesaurus: NCEI Geoportal Filter

Theme_Keyword: CoRIS_Metadata

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: CTD

Theme_Keyword: water chemistry

Theme_Keyword: biogeochemical

Theme_Keyword: temperature

Theme_Keyword: Salinity

Theme_Keyword: ammonium

Theme_Keyword: oxygen

Theme_Keyword: nitrite

Theme_Keyword: nitrate

Theme_Keyword: nitrous oxide

Theme_Keyword: pH

Theme_Keyword: nutrients

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category

Theme_Keyword: environment

Theme_Keyword: oceans

Theme_Keyword: 007

Theme_Keyword: 014

Theme:

Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus

Theme_Keyword: Numeric Data Sets > Oceanography

Theme:

Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus

Theme_Keyword: EARTH SCIENCE > Oceans > Salinity/Density > Salinity

Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Chemistry > pH

Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Chemistry > Nitrate

Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Chemistry > Nitrite

Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Chemistry > Nutrients

Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Temperature > Water Temperature

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: Hawaii

Place_Keyword: Eastern tropical Pacific

Place_Keyword: Station ALOHA

Place_Keyword: Mexico

Place:

Place_Keyword_Thesaurus: CoRIS Place Thesaurus

Place_Keyword:

COUNTRY/TERRITORY > United States of America > Hawaii > Hawaii > Hawaii (21N160W0000)

Place_Keyword:

OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Hawaii > Hawaii (21N160W0000)

Place:

Place_Keyword_Thesaurus: CoRIS Region

Place_Keyword: MHI

Access_Constraints: None

Use_Constraints: Dataset credit required

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: NOAA/National Oceanographic Data Center

Contact_Position: NODC User Services Group Leader

Contact_Address:

Address_Type: Mailing and physical address

Address: SSMC3 Fourth Floor

Address: 1315 East West Highway

City: Silver Spring

State_or_Province: Maryland

Postal_Code: 20910-3282

Country: USA

Contact_Voice_Telephone: 301-713-3277

Contact_Facsimile_Telephone: 301-713-3302

Contact_Electronic_Mail_Address: services@nodc.noaa.gov

Hours_of_Service: 8:00 a.m. to 4:00 p.m. Monday Through Friday

Contact_Instructions: Phone/FAX/e-mail

Data_Set_Credit:

Dr. Frank Sansone Dr. Brian Popp Department of Oceanography School of Ocean Earth Science and Technology University of Hawaii at Manoa National Science Foundation Chemical Oceanography program

Native_Data_Set_Environment: MS Excel (2000)

Data_Quality_Information:

Logical_Consistency_Report: see methodology

Completeness_Report: None

Lineage:

Process_Step:

Process_Description:

The EPREX consisted of a transect cruise with six stations spanning a range of biogeochemical conditions. At each station we collected water samples at depths ranging from the surface to 2000 meters. Oxygen was measured using Winkler titration (Grasshoff et al., 1983); nitrite was measured using colorimetry (Grasshoff et al., 1983); ammonium was measured using the fluorescence method of Jones (1991); and N2O was measured by headspace equilibration in a gas tight syringe, followed by packed-column gas chromatography using an electron capture detctor (Cohen, 1977). Nutrient samples, including nitrate, nitrite, and ammonium were collected in acid-washed plastic bottles and frozen for later analysis. Additional water samples were collected in glass serum bottles, preserved with mercuric chloride and sealed with gas tight septa for stable isotopic analysis of N2O in the mass spectrometry laboratory at the University of Hawaii.

Source_Used_Citation_Abbreviation:

Cohen Y., 1977. Shipboard measurements of dissolved nitrous oxide in seawater by electron capture detector. Anal.Chem. 49:1238-1240.

Dore J.E., Popp, B.N., Karl, D.M, and Sansone, F.J., 1988. A large source of atmospheric nitrous oxide from subtropical North Pacific surface waters. Nature 396:63-66.

Grasshoff K., Ehrhardt M., and Kremling K, 1983. Methods of seawater analysis. Second Revised and Extended Edition. Verlog Chemie: pp. 61-72, 143-150.

Jones R.D, 1991. An improved fluorescence method for the determination of nonmolar concentrations of ammonium in natural waters. Limnol. Oceanogr. 36(4) 814-819.

Khalil M.A.K. and Rasmussen R.A, 1992. The global source of nitrous oxide. J. Geophys. Res. 97:14651-14660.

Ledwell J.R., Watson A.J. and Law C.S., 1988 Mixing of a tracer in the pycnocline. J. Geophys. Res. 103:21499-21529

Process_Date: unknown

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Dr. Frank Sansone

Contact_Organization:

Department of Oceanography
School of Ocean Earth Science and Technology
University of Hawaii at Manoa

Contact_Position: professor

Contact_Address:

Address_Type: physical and mailing

Address: MSB 523

Address: 1000 Pope Road

City: Honolulu

State_or_Province: Hawaii

Postal_Code: 96822

Country: USA

Contact_Voice_Telephone: 808-956-8370

Contact_Electronic_Mail_Address: sansone@hawaii.edu

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: NOAA/NESDIS/National Oceanographic Data Center

Contact_Person: Data Access Group, User Services Team

Contact_Address:

Address_Type: mailing and physical

Address: SSMC-3 Fourth Floor

Address: 1315 East West Highway

City: Silver Spring

State_or_Province: MD

Postal_Code: 20910-3282

Country: USA

Contact_Voice_Telephone: 301-713-3277

Contact_Facsimile_Telephone: 301-713-3302

Contact_Electronic_Mail_Address: services@nodc.noaa.gov

Hours_of_Service: 8am-5pm, Monday through Friday

Resource_Description: Downloadable Data

Distribution_Liability:

NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA and NODC cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: Excel and csv

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: https://accession.nodc.noaa.gov/833

Fees:

Prices vary depending on data set, output medium and ordering mechanism. A standard handling charge, with additional costs for special handling, may be added to the basic cost of the data.

Ordering_Instructions:

Prepayment by check, money order or bank card is required. Orders may be placed via fax, email, regular mail, telephone or via the NNDC Online Store.

Metadata_Reference_Information:

Metadata_Date: 20210106

Metadata_Review_Date: 20090105

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Mr. Patrick C. Caldwell

Contact_Organization: NOAA/NESDIS/NODC/NCDDC

Contact_Position: Hawaii/US Pacific Liaison

Contact_Address:

Address_Type: mailing

Address: 1000 Pope Road, MSB 316

Address: Dept. of Oceanography

Address: University of Hawaii at Manoa

City: Honolulu

State_or_Province: Hawaii

Postal_Code: 96822

Country: USA

Contact_Voice_Telephone: (808)-956-4105

Contact_Facsimile_Telephone: (808) 956-2352

Contact_Electronic_Mail_Address: caldwell@hawaii.edu

Hours_of_Service: 8 AM to 5 PM weekdays

Contact_Instructions: check services@nodc.noaa.gov if not available

Metadata_Standard_Name: FGDC CSDGM

Metadata_Standard_Version: FGDC-STD-001-1998

CoRIS:

CoRIS_ID: 20090105062619

CoRIS_Children: None

CoRIS_Beginning_Date: 20000524

CoRIS_Ending_Date: 20000628

CoRIS_Metadata_Link:

https://www.coris.noaa.gov/metadata/records/html/nodc_0000833_fgdc_eprex.html

CoRIS_Tracking_ID: 2548