*2009/04/17 13:19:09.10 *IOS HEADER VERSION 1.8 2007/05/25 2007/05/25 *FILE START TIME : UTC 2008/09/11 18:10:34.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 20 DATA DESCRIPTION : CTD FILE TYPE : ASCII CRC : 2489BC6 NUMBER OF CHANNELS : 10 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- --------------------------- --------------- -------------- -------------- 1 Pressure decibar 3.321 21.818 2 Temperature:Primary 'deg C (ITS90)' 11.7447 13.3958 3 Transmissivity %/metre 14.4 59.4 4 Fluorescence:URU:Seapoint mg/m^3 0.375 4.939 5 PAR uE/m^2/sec 1.997 854.711 6 PAR:Reference uE/m^2/sec 2150.626 2156.04 7 Oxygen:Dissolved:SBE mL/L 4.448 6.972 8 Salinity:T0:C0 PSS-78 26.95 28.6765 9 Number_of_bin_records n/a 33 124 10 Oxygen:Dissolved:SBE umol/kg 194.3484 305.1193 $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 7 F ' ' 1 2 -99 ' ' 9 F ' ' 4 3 -99 ' ' 6 F ' ' 1 4 -99 ' ' 8 F ' ' 3 5 -99 ' ' 7 F ' ' 1 6 -99 ' ' 7 F ' ' 1 7 -99 ' ' 7 F ' ' 2 8 -99 ' ' 9 F ' ' 4 9 ' ' ' ' 5 I I 0 10 -99 ' ' 6 F ' ' 1 $END $REMARKS This file converted from Sea-Bird file: Q:\Cruise_Data_Processing\2008-51\Pro $END *ADMINISTRATION MISSION : 2008-51 AGENCY : IOS, Ocean Science and Productivity, Sidney, B.C. COUNTRY : Canada PROJECT : SoG/JdF SCIENTIST : Chandler P. PLATFORM : Vector *LOCATION GEOGRAPHIC AREA : Strait of Georgia/Juan de Fuca Strait STATION : 50 EVENT NUMBER : 36 LATITUDE : 48 57.67000 N ! (deg min) LONGITUDE : 122 56.13000 W ! (deg min) WATER DEPTH : 24 ALTIMETER (M) : 6.52 ! custom item $REMARKS Altimeter value is distance from bottom and is calculated as the median of the deepest 2 metres of data. $END *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0585 $TABLE: SENSORS ! Name Abs Depth Serial No ! ------------------------- -------------- ---------- temperature:primary ' ' 2374 conductivity:primary ' ' 1764 pressure ' ' 77511 temperature:secondary ' ' 2710 conductivity:secondary ' ' 2676 Fluorometer ' ' Seapoint transmissometer:primary ' ' 1050DR Oxygen:SBE ' ' 1117 altimeter: ' ' ' ' irradiance:primary ' ' 4601 surface ' ' 'degrees = 0.0' $END $REMARKS SOFTWARE VERSION SEASAVE V 7.18 $END *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SBE_IOS 3.1 2008/11/12 16:53:52 4430 4430 CLEAN 5.0.2 2008/11/12 17:16:10 4397 4397 SHIFTDAT 3.4 2008/12/04 17:24:46 4397 4397 SHIFTDAT 3.4 2008/12/04 17:41:56 4397 4397 SHIFTDAT 3.4 2008/12/04 17:58:59 4397 4397 DELETE 6.3 2008/12/04 18:13:55 4397 2072 CTDEDIT 4.61 2008/12/08 09:19:12 2072 1410 CALIB 11.7 2008/12/09 09:26:55 1410 1410 CALIB 11.7 2008/12/09 13:33:07 1410 1410 FILTERS 4.3 2008/12/09 14:37:19 1410 1410 BINAVE 4.1.1 2008/12/09 15:21:26 1410 20 REMOVECH 8.0 2008/12/09 15:26:04 20 20 CHGUNITS 3.0 2008/12/09 15:26:21 20 20 HDREDIT2 2.5.1 2008/12/09 15:32:32 ? ? HDREDIT2 2.5.1 2009/04/17 13:19:09 ? ? $END $REMARKS -CLEAN functions: 2008/11/12 17:08:52 20 Interpolation by Channel 1: Scan_Number [n/a] in Pressure Set event to last 4 characters of file name -The following SHIFT parameters were used. Shift Channel: Oxygen:Dissolved:SBE # of Records to Advance (-ve for Delay): At REC# 0 Shift= 60.00 -The following SHIFT parameters were used. Shift Channel: Conductivity:Primary # of Records to Advance (-ve for Delay): At REC# 0 Shift= 0.50 Salinity was recalculated after shift -The following SHIFT parameters were used. Shift Channel: Conductivity:Secondary # of Records to Advance (-ve for Delay): At REC# 0 Shift= 0.50 Salinity was recalculated after shift -The following DELETE parameters were used: Surface Record Removal: Last Press Min Maximum Surface Pressure (relative): 10.00 Surface Swell Pressure Tolerance: 1.00 Pressure filtered over width: 15 Swells deleted. Warning message if pressure difference of 2.00 Drop rates < 0.30m/s (calculated over 11 points) will be deleted. Drop rate applies in the range 10.00 to 12.22 dbars Sample interval (from FILE section of header) = 0.042 seconds. -CTDEDIT 2008/12/08 09:19:12 662 records were deleted in this editing session. No data values were changed. -CALIB parameters: 2008/12/09 09:26:55 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = Q:\Cruise_Data_Processing\2008-51\Processing\doc\2008-51-recal1.ccf Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 15 Oxygen:Dissolved:SBE mL/L 10 0.7700000E-01 0.1062700E+01 -CALIB parameters: 2008/12/09 13:33:07 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = Q:\Cruise_Data_Processing\2008-51\Processing\doc\2008-51-recal2.ccf Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 15 Oxygen:Dissolved:SBE mL/L 10 0.1320000E-01 0.9973000E+00 -The following FILTER parameters were used. Median filter was used. Filter width = 11 The following channel(s) were filtered. Fluorescence:Seapoint -The following BINAVE parameters were used: Bin channel = Pressure Averaging interval = 1.00 Minimum bin value = 0.000 Average value was used Interpolated values were NOT used for empty bins Channel 'NUMBER_OF_BIN_RECORDS' was added to file. -REMOVECH 2008/12/09 15:26:04 10 channels removed. -CHANGE units: 'Oxygen:Dissolved:SBE' changed from mL/L to umol/kg -HEADER EDITS: 2008/12/09 15:32:32 Applied edit header: Q:\Cruise_Data_Processing\2008-51\Processing\doc\2008-51-HDR.TXT Channel 1: Pressure [decibar] Units: dbars ==> decibar Format: F10.3 ==> F7.1 Channel 4: Fluorescence:URU:Seapoint [mg/m^3] Name: Fluorescence:Seapoint ==> Fluorescence:URU:Seapoint Channel 7: Oxygen:Dissolved:SBE [mL/L] Format: F8.3 ==> F7.2 Channel 5: PAR [uE/m^2/sec] Format: F11.3 ==> F7.1 Channel 6: PAR:Reference [uE/m^2/sec] Format: F11.3 ==> F7.1 -HEADER EDITS: 2009/04/17 13:19:09 Applied edit header: C:\My Documents\sample headers\add-comment.hdr $END *COMMENTS SBE HEADER Sea-Bird SBE 9 Data File: FileName = C:\Data\2008-51\2008-51-0036.hex Software Version Seasave V 7.18 Temperature SN = 2374 Conductivity SN = 1764 Number of Bytes Per Scan = 40 Number of Voltage Words = 5 Number of Scans Averaged by the Deck Unit = 1 System UpLoad Time = Sep 11 2008 11:11:32 NMEA Latitude = 48 57.67 N NMEA Longitude = 122 56.13 W NMEA UTC (Time) = Sep 11 2008 18:10:34 Store Lat/Lon Data = Append to Every Scan Vector 2008-51 Vector Station: 50 Depth: 24 # nquan = 18 # nvalues = 4430 # units = specified # name 0 = scan: Scan Count # name 1 = prDM: Pressure, Digiquartz [db] # name 2 = t090C: Temperature [ITS-90, deg C] # name 3 = t190C: Temperature, 2 [ITS-90, deg C] # name 4 = c0S/m: Conductivity [S/m] # name 5 = c1S/m: Conductivity, 2 [S/m] # name 6 = xmiss: Beam Transmission, Chelsea/Seatech/Wetlab CStar [%] # name 7 = flSP: Fluorescence, Seapoint # name 8 = sbeox0V: Oxygen Voltage, SBE 43 # name 9 = par: PAR/Irradiance, Biospherical/Licor # name 10 = spar: SPAR/Surface Irradiance # name 11 = dz/dtM: Descent Rate [m/s] # name 12 = pumps: Pump Status # name 13 = altM: Altimeter [m] # name 14 = sbeox0ML/L: Oxygen, SBE 43 [ml/l], WS = 2 # name 15 = sal00: Salinity [PSU] # name 16 = sal11: Salinity, 2 [PSU] # name 17 = flag: flag # span 0 = 1, 4430 # span 1 = 2.532, 22.224 # span 2 = 11.6543, 13.5658 # span 3 = 11.6523, 13.5937 # span 4 = 3.256939, 3.326812 # span 5 = 3.245977, 3.326471 # span 6 = 59.9713, 88.0318 # span 7 = 2.7839e-01, 5.0000e+00 # span 8 = 2.3516, 3.6447 # span 9 = 1.7861e+00, 3.2077e+03 # span 10 = 2.1490e+03, 2.1573e+03 # span 11 = -0.542, 0.468 # span 12 = 0, 1 # span 13 = 2.25, 100.00 # span 14 = 4.02805, 7.09249 # span 15 = 26.8650, 28.7751 # span 16 = 26.8101, 28.7730 # span 17 = 0.0000e+00, 0.0000e+00 # interval = seconds: 0.0416667 # start_time = Sep 11 2008 11:11:32 # bad_flag = -9.990e-29 # sensor 0 = Frequency 0 temperature, primary, 2374, 29-May-08 # sensor 1 = Frequency 1 conductivity, primary, 1764, 11-Oct-07, cpcor = -9.57 00e-08 # sensor 2 = Frequency 2 pressure, 77511, 13-MAR-00 # sensor 3 = Frequency 3 temperature, secondary, 2710, 29-May-08 # sensor 4 = Frequency 4 conductivity, secondary, 2676, 31-Dec-02, cpcor = -9. 5700e-08 # sensor 5 = Extrnl Volt 0 Fluorometer, Seapoint, primary # sensor 6 = Extrnl Volt 1 transmissometer, primary, 1050DR, 9-Jun-08 # sensor 7 = Extrnl Volt 2 Oxygen, SBE, primary, 1117, 08-Feb-08p # sensor 8 = Extrnl Volt 4 altimeter # sensor 9 = Extrnl Volt 6 irradiance (PAR), primary, 4601, DEC.19,2004 # sensor 10 = Extrnl Volt 9 surface irradiance (SPAR), degrees = 0.0 # datcnv_date = Nov 11 2008 12:19:09, 7.18 # datcnv_in = Q:\Cruise_Data_Processing\2008-51\RAW\CTD\2008-51-0036.hex Q:\Crui se_Data_Processing\2008-51\Processing\doc\2008-51-ctd.CON # datcnv_skipover = 0 # wildedit_date = Nov 11 2008 12:26:07, 7.18 # wildedit_in = Q:\Cruise_Data_Processing\2008-51\Processing\convert\2008-51-003 6.cnv # wildedit_pass1_nstd = 2.0 # wildedit_pass2_nstd = 5.0 # wildedit_pass2_mindelta = 0.000e+000 # wildedit_npoint = 50 # wildedit_vars = prDM t090C t190C c0S/m c1S/m # wildedit_excl_bad_scans = yes # celltm_date = Nov 11 2008 13:04:35, 7.18 # celltm_in = Q:\Cruise_Data_Processing\2008-51\Processing\wildedit\2008-51-0036 .cnv # celltm_alpha = 0.0300, 0.0300 # celltm_tau = 9.0000, 9.0000 # celltm_temp_sensor_use_for_cond = primary, secondary # Derive_date = Nov 11 2008 13:47:20, 7.18 # Derive_in = Q:\Cruise_Data_Processing\2008-51\Processing\celltm\2008-51-0036.c nv Q:\Cruise_Data_Processing\2008-51\Processing\doc\2008-51-ctd.CON # derive_time_window_docdt = seconds: 2 # file_type = ascii END* The descent rate of the CTD was very low and towards the bottom it was very jerky. CTDEDIT was used to remove surface records to 3.2db and some records corrupted by shed wakes near the bottom. --------------------------------------------------------------------- The fluorometer appears to have been UNPUMPED for this cruise which may result in spikes associated with descent rate variations. Transmissivity and fluorescence are nominal and unedited except that some records were removed in editing temperature and salinity. The dissolved oxygen data in the CTD files should be considered: • ±0.5 ml/l from 0– 50db • ±0.4 ml/l from 50–150db • ±0.2 ml/l below 150 db The salinity appears to have been low by about 0.012 units, but there were some problems with the salinometer, so no recalibration has been applied pending results of a post-cruise calibration of the temperature and conductivity sensors. UPDATE (April 2009): Post-cruise calibration reports indicate that the drifts in the T and C sensors were very low and that the combined effect on salinity would lead to errors of <0.001 for this cruise. So no recalibration is required. *CALIBRATION $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------------- ------ ---- ------ ------------ Oxygen:Dissolved:SBE mL/L 10 -99 () (0.77E-01 1.0627) Oxygen:Dissolved:SBE mL/L 10 -99 () (0.132E-01 0.9973) $END !--1--- ---2---- --3-- ---4--- --5--- --6--- --7--- ---8---- -9-- --10- !Pressu Temperat Trans Fluores PAR PAR: Oxygen Salinity Numb Oxyge !re ure: missi cence: Refere : :T0:C0 er_o n: ! Primary vity URU: nce Dissol ~bin Disso ! Seapoin ved: _rec lved: ! t SBE ords SBE !------ -------- ----- ------- ------ ------ ------ -------- ---- ----- *END OF HEADER 3.3 13.3958 14.4 4.939 854.7 2155.2 6.97 26.9500 33 305.1 3.8 13.3163 14.4 4.938 657.3 2156.0 6.74 26.9758 45 294.7 5.0 13.2245 14.7 4.938 338.5 2155.7 6.59 26.9818 60 288.5 6.0 13.2018 16.2 4.939 187.8 2155.2 6.30 27.0196 55 275.6 7.0 12.7889 27.5 4.656 107.8 2155.2 4.84 27.4285 56 211.9 8.0 12.5181 49.3 2.800 59.3 2153.9 4.90 27.7094 62 214.1 9.0 12.5018 55.7 0.985 36.2 2154.5 5.43 27.7760 57 237.5 10.0 12.4972 54.4 0.943 24.9 2154.8 5.76 27.9052 62 251.7 11.0 12.2912 52.3 0.772 19.5 2153.3 5.17 28.1286 66 226.1 12.0 12.1100 56.4 0.517 16.3 2153.2 4.70 28.1917 61 205.4 13.0 12.0523 58.3 0.464 13.4 2153.2 4.68 28.2062 65 204.7 14.0 12.0283 59.4 0.375 10.8 2153.2 4.74 28.2360 66 207.4 15.0 11.9583 56.0 0.608 8.9 2153.2 4.82 28.3912 64 210.8 16.0 11.8941 45.5 0.582 7.4 2152.8 4.76 28.4786 75 208.0 17.0 11.8955 42.6 0.830 6.3 2153.1 4.74 28.4916 96 207.2 17.8 11.9034 40.3 0.686 5.5 2153.0 4.75 28.4926 67 207.4 19.0 11.9053 44.2 0.842 4.2 2151.2 4.76 28.5095 113 207.8 20.0 11.8857 39.6 0.678 3.2 2150.6 4.71 28.5425 124 205.7 21.0 11.8343 40.2 0.713 2.5 2151.1 4.59 28.5924 108 200.6 21.8 11.7447 40.0 0.682 2.0 2151.1 4.45 28.6765 72 194.3