CTD

Data Object CTD

contact PIs:

name	title
Dr Atsushi Tsuda	Principal Investigator

Dataset description

SEEDS 2001 CTD profile data

Acquisition description

CTD Stations organized in 2 groups:

Group 1:              Upload Dates/Times from Header
  PF       PF00.HDR:* System UpLoad Time = Jul 05 2001 07:08:41
  D0-I     D0-I.HDR:* System UpLoad Time = Jul 17 2001 00:23:29 
  D2-I     D2-I.HDR:* System UpLoad Time = Jul 19 2001 22:32:11    
  D4-I     D4-I.HDR:* System UpLoad Time = Jul 21 2001 22:16:34     
  D7-I     D7-I.HDR:* System UpLoad Time = Jul 25 2001 00:11:42     
  D9-I     D9-I.HDR:* System UpLoad Time = Jul 26 2001 23:12:10
  D9-I2    D9-I2.HDR:* System UpLoad Time = Jul 26 2001 23:52:43
  D11-I    D11-I.HDR:* System UpLoad Time = Jul 28 2001 22:57:02
  D13-I    D13-I.HDR:* System UpLoad Time = Jul 31 2001 00:27:29
  D13-I2   D13-I2.HDR:* System UpLoad Time = Jul 31 2001 01:08:04

Group 2:              Upload Dates/Times from Header
  D2-O     D2-O.HDR:* System UpLoad Time = Jul 20 2001 03:51:12
  D4-O     D4-O.HDR:* System UpLoad Time = Jul 22 2001 02:59:15
  D7-O     D7-O.HDR:* System UpLoad Time = Jul 25 2001 03:27:44
  D7-O2    D7-O2.HDR:* System UpLoad Time = Jul 25 2001 04:08:06
  D9-O     D9-O.HDR:* System UpLoad Time = Jul 27 2001 04:38:17
  D11-O    D11-O.HDR:* System UpLoad Time = Jul 29 2001 01:37:42
  D13-O    D13-O.HDR:* System UpLoad Time = Jul 31 2001 05:04:04
  D13-O2   D13-O2.HDR:* System UpLoad Time = Jul 31 2001 05:53:14

It is not explicitly stated but it appears that at all stations
two CTD sampling rosette casts were made: clean and rms.

The clean rosette appears to have typically sampled the mixed layer(<50 m)
e.g. 5, 10, 20, 30, 50 m.

The rms rosette appears to have typically sampled the euphotic zone (<200 m)
e.g. 10, 20, 30, 40, 50, 80, 100, 150, 200 m.

NOTE: Temp is T068 scale

Processing description

BCO-DMO Processing Notes
Generated from the original CTD data

BCO-DMO Edits
- Cruise event generated as YYYYMMDDHHMM
- Parameter names modified to conform to BCO-DMO convention
- Date converted to YYYYMMDD
- Time converted to HHMM
- Lat/Lon converted from degs, decimal minutes to decimal degrees

Field Names List

Parameter	Description	Units
lon	longitude, negative denotes West	decimal degrees
lat	latitude, negative denotes South	decimal degrees
date_start	start date of sampling	YYYYMMDD
Pr	pressure, from CTD	decibars
T068	temperature, from CTD, T068 scale	degrees Celcius
Sal00	salinity, from CTD, PSS-78 (PSU)	dimensionless
Sigma-t00	density sigma-t	kilograms/meter^3
Sigma_é00	Sigma_é00	kilograms/meter^3 (??)
time_start	Start time of sampling	HHMM
date_end	End date of sampling	YYYYMMDD
time_end	End time of sampling	HHMM
event	Cruise event id	YYYYMMDDHHMM
station	Station Id	text
C0S_per_m	Conductivity	S/m

Platforms List

R/V Kaiyo-maru KY0103-02

Instruments List

CTD Sea-Bird 911:
Sample CTD header file for SEEDS 2001:
* Sea-Bird SBE 9 Raw Data File:
* FileName = C:CTDDATAD0-I.HDR
* Software Version 4.233
* Temperature SN = 2104
* Conductivity SN = 1723
* Number of Bytes Per Scan = 34
* Number of Voltage Words = 5
* System UpLoad Time = Jul 17 2001 00:23:29
* NMEA Latitude = 48 30.09 N
* NMEA Longitude = 164 59.83 E
* NMEA UTC (Time) = 00:40:27
* Store Lat/Lon Data = Append to Every Scan
* Command Line = seasave -cCTDDATAoctGPS
** Ship: KAIYO MARU
** Cruise: leg1 3RD
** Station: D0-I
** Latitude:
** Longitude:
**
**
**
*END*

This document is created from the content of the BCO-DMO metadata database. 2010-09-02 21:41:09

info app: /home/bco/dbase-v2 v.100108 CLC
Data URL: http://data.bco-dmo.org/jg/serv/BCO/Fe_Synthesis/SEEDS/SEEDS_2001/CTD.