#ACCESSION NUMBER 0100295 #CONTRIBUTOR(S), INSTITUTE(S), CONTACT INFORMATION: Megan Duncan Pacific Islands Fisheries Science Center 2570 Dole Street Honolulu, HI 96822-2396 email: megan.duncan@noaa.gov phone: 808-983-5390 #ORIGINATOR(S), INSTITUTE(S), CONTACT INFORMATION: Dr. Michael P. Seki NOAA/NMFS Pacific Islands Fisheries Science Center Honolulu Laboratory 2570 Dole Street Honolulu, HI 96822-2396 email: Michael.Seki@noaa.gov phone: 808-983-5393 #TITLE: CTD and ancillary profile data from NOAA/NMFS cruises of the R/V Townsend Cromwell in the central north Pacific 1997-2002 #ABSTRACT: This dataset contains measurements from a CTD for hydrocast stations of seven cruises of the R/V Townsend Cromwell in the central north Pacific over 1997-2002 sponsored by the National Oceanic and Atmospheric Administration (NOAA) National Marine Fisheries Service (NMFS). Fluorescence and oxygen sensors were mounted on the CTD. Cast depth varied between 500 to 1000 m and spacing between stations of between 15 to 30 nmi. Nutrients are available for a few cruises. Specific details of each cruise are given in cruise reports. Format of data is ASCII text and specific file organization and formats vary from cruise to cruise. #PURPOSE: Characterize the physical and biological oceanographic properties associated with common fisheries zones. #PROJECT: NOAA/NMFS Southwest Fisheries Science Center Honolulu Lab (Pacific Islands Fisheries Science Center) and the University of Hawaii, School of Ocean Earth Science and Technology, Department of Oceanography #FUNDING: Spring cruises of Seki et al, 2002: NOAA Cooperative Agreement Number NA37RJ0199 NASA NAG5-7171 #ACKNOWLEDGEMENTS: Crew of R/V Townsend Cromwell and NOAA/NMFS and University of Hawaii, Department of Oceanography cruise participants and lab assistants. #LOCATION EXTREMES: SOUTHERNMOST LATITUDE: 7.0 SOUTHERNMOST LATITUDE HEMISPHERE: N NORTHERNMOST LATITUDE: 34.0 NORTHERNMOST LATITUDE HEMISPHERE: N WESTERNMOST LONGITUDE: 172.0 WESTERNMOST LONGITUDE HEMISPHERE: W EASTERNMOST LONGITUDE: 153.0 EASTERNMOST LONGITUDE HEMISPHERE: W #LOCATION KEYWORDS: Pacific, Central North Pacific, Tropical Pacific, Hawaii, north Pacific subtropical front #SAMPLING STATIONS: Cruise TC-97-04 (TC-219) dates: 25 Apr - 19 May 1997 region: Waters north of the Hawaiian Archipelago in the vicinity of the subtropical front 158.66W-172W, 21.53-34N casts: 99 CTD casts, ~500m depth Cruise TC-98-05 (TC-231) dates: 23 Apr - 10 May 1998 region: Waters north of the Hawaiian Archipelago in the vicinity of the subtropical front pending date data for each cast casts: 76 CTD casts (not available, only bio-chem data) Note: Exact date/time of each cast is not given within the data file The user will have to approximate a nominal date within the cruise dates of 23 April - 10 May 1998 Cruise TC-98-11 dates: 08 Oct - 11 Oct 1998 region: Waters north of the Hawaiian Archipelago in the vicinity of the subtropical front 153W, 27-32N casts: 22 CTD casts, ~500m depth *no cruise report Cruise TC-99-05 (TC-243) dates: 26 Apr - 09 May 1999 region: Waters north of the Hawaiian Archipelago in the vicinity of the subtropical front and SW of Niihau 158-161W, 19.8-32N casts: 42 CTD casts, ~500m depth Cruise TC-00-04 dates: 21 Apr - 25 Apr 2000 region: Hawaiian Islands, subtropical front north of Hawaii longitude: 157.8W to 158.0W latitude: 23N to 33.5N casts: Stations 16-50 to 500 m *no cruise report Cruise TC-01-04 (TC-267) dates: 20 Apr - 04 May 2001 region: south of Hawaiian archipelago, 7-12N, 158-162W, vicinity of the BIGEYE mooring site casts: 35 total casts to depths of 500 or 1000m profiles spaced 30 nm and 50 nm apart Cruise TC-02-05 (TC-279) dates: 11 Jul - 29 Jul 2002 region: waters south of the Hawaiian Archipelago along a sampling line between 7-21N for longitude 158.31-163.58W casts: 29 CTD casts to 1000 m about 30 nmi apart #BEGIN AND END DATES: 25 April 1997 - 29 July 2002 #SAMPLING PERIODS: TC-97-04: 25 Apr - 19 May 1997 TC-98-05: 23 Apr - 10 May 1998 TC-98-11: 08 Oct - 11 Oct 1998 TC-99-05: 26 Apr - 09 May 1999 TC-00-04: 21 Apr - 25 Apr 2000 TC-01-04: 20 Apr - 04 May 2001 TC-02-05: 11 Jul - 29 Jul 2002 #PARAMETERS: physical oceanographic data pressure, Digiquartz [db] Temperature [ITS-90, deg C] potential temperature, Celcius degrees Conductivity [mS/cm] Oxygen Saturation, Garcia & Gordon [ml/l] Oxygen Saturation, Weiss [ml/l] Oxygen,Beckman/YSI [ml/l] Fluorescence, Seapoint Fluorescence,WETLabsWETstar [mg/m^3] Salinity, Practical [PSU] Density [sigma-t, Kg/m^3 ] biological and chemical data high performance liquid chromatography (HPLC) BUT: 19"-butanoyloxyfucoxanthin (ng/L) DV-CHLA: divinyl chlorophyll a (ng/L) FUCO: Fucoxanthin (ng/L) HEX: 19"-hexanoyloxyfucoxathin (ng/L) PER: Peridinean (ng/L) ZEAX: zeaxanthin (ng/L) nitrate+nitrite, phosphorus, silicate #METHODOLOGY: CTD data collected in the traditional manner by lowering the sensor from the vessel's winch while ship movement is quasi-stationary. The cruise reports (../data/1-data/cruise/) detail processing and calibration of the CTD and data from ancillary parameters. #INSTRUMENT TYPES: Sea-Bird SBE 9 CTD Sea-Bird SBE 9/11 CTD Niskin bottles Seapoint flourometer WETLabs WETstar flourometer Beckman YSI oxygen sensor WETLabs WETstar oxygen sensor #REFERENCES: Seki, M.P., J.J. Polovina, D.R. Kobayashi, R.R. Bidigare, and G.T. Mitchum, 2002. An oceanographic characterization of swordfish longline fishing grounds in the springtime subtropical Pacific. Fisheries Oceanography. 11:5, 251-266. #SUBMITTING MEDIUM: email file transfer #DIRECTORY ORGANIZATION, FILE NAMES AND FORMATS: /data/0-data this directory contains the original set of data (directories, subdirectories, files) as they were provided to NODC, ie, originator's data. DIRECTORY /data/0-data/TC-00-04 CRUISE TC0004 no cruise report available sub-directory /CTD 1. files: allfiles00_04.txt format: ASCII text content: CTD finalized, processed dataset for all casts of this cruise columns: Cruise: always TC-00-04 Station Type: station number YYYY-MM-DD hh:mm: date-time (GMT) Longitude [degrees_west] Latitude [degrees_north] Bot. Depth [m] : always 500m (nominal) Pressure [decibar] TempP90 [C] Salinity [psu] Sigma-Theta [kg km^-3] Oxygen [ml L^-1] Fluorescence [mg Chl a m^-3] sub-directory /Nutrients 1. files: TC0004-NUTS-allstatons.csv format: ASCII text, comma-separated version (CSV) content: nutrients data columns: Station: hydrocast count Date: dd-Mmm-yyyy hh:mm:ss Longitude: decimal degrees Latitude: decimal degrees Pressure: db Nitrate: uM Phosphate: uM Silicate: uM ----------------------------------------------------- DIRECTORY /data/0-data/TC-01-04 CRUISE TC0104 file: CruiseReport0104.pdf format: Adobe Acrobat Document content: brief cruise report with map showing CTD station locations (redundant copy as PDF/A format stored on /data/1-data/TC-01-04) sub-directory: /CTD file: metadata_CTD.txt format: ASCII text content: metadata output generated by CTD software from one cast file: CTD0104.txt format: ASCII text content: CTD comprehensive cruise file for all stations and all depth levels columns: Cruise: code for cruise, TC-01-04 Station Type: hydrocast station number YYYY-MM-DD: date hh:mm: time GMT Longitude [degrees_west]: decimal degrees Latitude [degrees_north]: decimal degrees Bot. Depth [m]: estimated bottom depth (nominally 5000m throughout) Pressure, Digiquartz [db]: measured pressure Temperature [ITS-90, deg C]: measured temperature, primary sensory Conductivity [mS/cm]: measured conductivity Temperature, 2 [ITS-90, deg C]: secondary sensor, can be ignored ; Voltage 0 [unitless]; Voltage 2 [unitless]; Voltage 4 [unitless]: voltages Temperature, 2 [ITS-90, deg C]: secondary sensor, can be ignored Oxygen Saturation, Garcia & Gordon [ml/l]: as defined, primary sensor Oxygen Saturation, Weiss [ml/l]: as defined, primary sensor Fluorescence, Seapoint [unitless]: as defined, primary sensor Oxygen Saturation, Garcia & Gordon [ml/l]: as defined, can be ignored Oxygen Saturation, Weiss [ml/l]: as defined, can be ignored number of scans per bin [unitless]: as defined Salinity, Practical [PSU]: as defined Density [sigma-t, Kg/m^3 ]: as defined flag [unitless]: 0:good other: questionable ----------------------------------------------------- DIRECTORY /data/0-data/TC-02-05 CRUISE TC0205 file: CruiseReport0205.pdf format: Adobe Acrobat Document content: brief cruise report with map showing CTD station locations (redundant copy as PDF/A format stored on /data/1-data/TC-02-05) sub-directory: /bottle files: castsssc.btl where sss is cast/station number format: ASCII text content: processed bottle data without fluorescence/chlorophyll data header: provides location coordinates and pertinent metadata data columns: Bottle: bottle number Date: MMM DD YYYY Sigma-t00: density, Kg/m^3 OxsatML/L: oxygen saturation in ML/L Potemp090C: potential temperature, primary, Celcius degrees Sal00: salinity, PSU Potemp190C: potential temperature, Celcius degrees PrDM: Pressure, db T090C: temperature, Celcius degrees C0mS/cm: conductivity, mS/cm Sal00: salinity, PSU T190C: temperature Celcius degrees Sal11: salinity, PSU V0: voltage V2: voltage V4: voltage V6: voltage sub-directory: /CTD file: metadata_CTD.txt format: ASCII text content: metadata output generated by CTD software from one cast file: CTD0205.txt format: ASCII text content: CTD comprehensive cruise file for all stations and all depth levels columns: Cruise: code for cruise, TC-02-05 Station Type: hydrocast station number YYYY-MM-DD: date hh:mm: time Longitude [degrees_west]: coordinate Latitude [degrees_north]: coordinate Bot. Depth [m]: estimated bottom depth (nominally 5000m throughout) prDM [db]: measured pressure t090C [ITS-90, deg C]: measured temperature, primary sensor c0mS/ [mS/cm]: measured conductivity t190C [ITS-90, deg C]: 2nd temperature probe, ignore v0: [volts]; v2: [volts]; v4: [volts]; v6: [volts]: voltages oxsolML/ [ml/l]: Oxygen Saturation, Garcia & Gordo, primary sensorn oxsatML/ [ml/l]: Oxygen Saturation, Weiss, primary sensor flSP: [mg/m^3]: Fluorescence, Seapoint oxsolML/ [ml/l]: repeat, ignore oxsatML/ [ml/l]: repeat, ignore nbin: [scans]: number of scans per bin sal00 [PSU]: Salinity, Practical sigma- [sigma-t, Kg/m^3 ]: Density flag: 0:good other: questionable ----------------------------------------------------- DIRECTORY /data/0-data/TC-97-04 CRUISE TC9704 file: Cruise Report9704.pdf format: Adobe Acrobat Document content: brief cruise report (redundant copy as PDF/A format stored on /data/1-data/TC-97-04) sub-directory /CTD files: allfiles97_04.txt format: ASCII text content: CTD finalized, processed dataset will all casts and all depths columns: Cruise: always TC-97-04 Station Type: station number YYYY-MM-DD hh:mm: date-time (GMT) Longitude [degrees_west] Latitude [degrees_north] Bot. Depth [m] : always 500 (nominal) Pressure [decibar] TempP90 [C] Salinity [psu] Sigma-Theta [kg km^-3] Oxygen [ml L^-1] Fluorescence [mg Chl a m^-3] ----------------------------------------------------- DIRECTORY /data/0-data/TC-98-05 CRUISE TC9805 file: Cruise Report9805.pdf format: Adobe Acrobat Document content: brief cruise report (redundant copy as PDF/A format stored on /data/1-data/TC-98-05) file: HPLC.txt format: ASCII text content: high performance liquid chromatography (HPLC) columns: Cruise, Station, Depth, Lat, Long, BUT: 19"-butanoyloxyfucoxanthin (ng/L) DV-CHLA: divinyl chlorophyll a (ng/L) FUCO: Fucoxanthin (ng/L) HEX: 19"-hexanoyloxyfucoxathin (ng/L) PER: Peridinean (ng/L) ZEAX: zeaxanthin (ng/L) *Note, no date/time information provided other than the cruise dates of 23 April - 10 May 1998 CTD and Nutrient data pending future submission ----------------------------------------------------- DIRECTORY /data/0-data/TC-98-11 CRUISE TC9811 Note, no cruise report available sub-directory /CTD file: metadata_CTD.txt format: ASCII text content: metadata output generated by CTD software from one cast file: allODV.txt format: ASCII text content: CTD comprehensive cruise file for all stations and all depth levels columns: Cruise: code for cruise, TC-98-11 Station: hydrocast station number Type: cast type , C means CTD YYYY-MM-DD: date hh:mmZ: time GMT Longitude [degrees_west]: decimal degrees Latitude [degrees_north]: decimal degrees Bot. Depth [m]: estimated bottom depth (nominally 5000m throughout) Pressure, Digiquartz [db]: measured pressure Temperature [ITS-90, deg C]: measured temperature Conductivity [mS/cm]: measured conductivity Voltage 0 [unitless]; Voltage 2 [unitless]: voltages Fluorescence,WETLabsWETstar [mg/m^3] : as defined Oxygen,Beckman/YSI [ml/l] : as defined Oxygen Saturation, Garcia & Gordon [ml/l]: as defined Oxygen Saturation, Weiss [ml/l]: as defined numberofscansperbin [numberofscansperbin]: as defined Salinity, Practical [PSU]: as defined Density [sigma-t, Kg/m^3 ]: as defined flag [unitless]: 0:good other: questionable ----------------------------------------------------- DIRECTORY /data/0-data/TC-99-05 CRUISE TC9905 file: CruiseReport9905.pdf format: Adobe Acrobat Document content: brief cruise report (redundant copy as PDF/A format stored on /data/1-data/TC-99-05) sub-directory /CTD file: metadata_CTD.txt format: ASCII text content: metadata output generated by CTD software from one cast file: allODV.txt format: ASCII text content: CTD comprehensive cruise file for all stations and all depth levels columns: Cruise: code for cruise, TC-99-05 Station: hydrocast station number Type: cast type always C YYYY-MM-DD: date hh:mmZ: time GMT Longitude [degrees_west]: decimal degrees Latitude [degrees_north]: decimal degrees Bot. Depth [m]: estimated bottom depth (nominally 5000m throughout) Pressure, Digiquartz [db]: measured pressure Temperature [ITS-90, deg C]: measured temperature Conductivity [mS/cm]: measured conductivity Voltage 0 [unitless]; Voltage 2 [unitless]: voltages Fluorescence,WETLabsWETstar [mg/m^3] : as defined Oxygen,Beckman/YSI [ml/l] : as defined Oxygen Saturation, Garcia & Gordon [ml/l]: as defined Oxygen Saturation, Weiss [ml/l]: as defined numberofscansperbin [numberofscansperbin]: as defined Salinity, Practical [PSU]: as defined Density [sigma-t, Kg/m^3 ]: as defined flag [unitless]: as defined sub-directory /Nutrients 1. files: TC9905-NUTS-allstatons.csv format: ASCII text, comma-separated version (CSV) content: nutrients data columns: Station: hydrocast count Date: dd-Mmm-yyyy hh:mm:ss Longitude: decimal degrees Latitude: decimal degrees Pressure: db Nitrate: uM Phosphate: uM Silicate: uM /data/1-data this directory contains the files generated by NODC Adobe Acrobat Document PDF/A format (/A is the archive standard) were created from the original PDF formats of the cruise reports. They are found for the following cruises in these sub-directories: TC-01-04/ TC-02-05/ TC-97-04/ TC-98-05/ TC-99-05/ Missing reports: TC9811, TC0004 #DATASET SIZE: 29.5 megabytes #NUMBER OF DATA UNITS: 7 cruises #MISCELLANEOUS: shipboard ADCP are available separately within NODC Joint Archive for Shipboard ADCP for R/V Townsend Cromwell, ftp://ilikai.soest.hawaii.edu/caldwell_pub/adcp/INVNTORY/tcromwel.html