A Cruise Report: PR14 A.1 Cruise Narrative A.1.1 Highlights WOCE Section: 20VDPR1494_1 ExpoCode: Crucero WOCE PR14, 1994 Chief Scientist: Ximena Jara Urbistondo. Servicio Hidrográfico y Oceanográfico de la Armada (SHOA). Errázuriz 232, Playa Ancha. Valparaíso, Chile. Teléfono: 56-032-266666 Fax: 56-032-266542 Ship: AGOR60 - Vidal Gormaz. Port of call: Puerto Montt, CHILE Cruise Dates: October 4 - 25 / 1994 A.1.2 Cruise Summary Cruise Track: The cruise track and station locations are shown in figure 1. Number of stations: A total of 50 hydrographic stations were performed using a sealogger 19 CTD model 1240. Sampling: continuos profiles of temperature and salinity were made using a CTD. Floats, Drifters, and Moorings: (None) A.1.3 List of principal Investigators NAME RESPONSIBILITY INSTITUTION ----------------------- ------------------------------------------ ----------- EaC. Sra Wanda García. Chief of Watch 1, Computer Operator, SHOA Cruise Logger, Form filer. EaC. Sra. X. Jara U. Chief of Watch 2, Computer and Seabeam, SHOA cruise logger , METEO/S.H.I.P message sender A.1.4 Scientific Programme and methods The principal objectives of the cruise were: To collect necessary information to develop ocean circulation models to predict decade climatic changes in order to contribute to international WOCE program. Preliminary Results A.1.5 Major Problems Encountered on the Cruise - Hydrographic winch wire showed "knots" at stations25,26 28 and 30. - Winch power failure at station 27. - Winch display problems . - PC 486 showed malfunctions many times. A.1.6 Other Observations of Note A.1.7 List Of Cruise Participants NAME RESPONSIBILITY INSTITUTION ------------------------------------ ----------------------------- ----------- EaC. Sra. Wanda García L. Chief of watch 1 SHOA S2.Serv (Oc) A. Sanchez R. Winch operator SHOA C1.Serv. (Db. Catr) J. Freire V. Sampling assistant, XBT launcher SHOA M. Serv. (Oc.Bas.) D. Meza O. Chemical analysi SHOA M. Serv. (Oc. Bas.) M. Higueras M Rossette maneuver , salinity sampler SHOA C2. (ME. Naveg.) P. Hernández G. Seabeam-Ecosounder-Pinger operator, SHOA Rossette maneuver S2. Serv. (Oc) A. Olivares I. XBT launcher SHOA M. Serv. (Oc. Bas.) P. Altamirano F. Rossette maneuver, chemical analysis SHOA M. Serv. (Oc. Bas.) C. Saavedra M. Rossette maneuver , water sampler SHOA A.2 Underway Measurements A.2.1 Navigation: (Not available) A.2.2 Echosounding: (Not available) A.2.3 Acoustic Doppler Current Profiler (ADCP): (None) A.2.4 Thermosalinograph Measurements: (None) A.2.5 XBTs A total of 40 XBT launches (T5 and T7) were performed. A.2.6 Meteorological Measurements Meteorological data measured were : wind speed and direction, air temperature, atmospheric pressure. A.3 Hydrographic Measurement Techniques and Calibration A.3.1 Sample Salinity Measurements: (Not sampled) A.3.2 Sample Oxygen Measurements: (Not sampled) A.3.3 Nutrients: (Not sampled) A.3.4 CFC: (Not sampled) A.3.5 Samples taken for other chemical measurements: (None) A.3.6 CTD Measurements The CTD used was a Sealogger-19 model 1240 bought by SHOA in 1992, whose first calibration was made in 1995. A.3.7 CTD Data collection and processing Data registry DATE STATION -------- ------------------- 10/6/94 1, 3 10/7/94 2, 4, 5, 50, 49, 48 10/8/94 47, 46, 32, 33 10/9/94 34, 31, 30 10/10/94 29, 28, 27, 26, 25 10/11/94 24, 23, 22 10/12/94 21, 20, 19, 18 10/13/94 17, 39, 38 10/14/94 37, 36, 35 10/18/94 45, 44 10/19/94 43, 42, 41, 40 10/20/94 16, 15, 14 10/21/94 13, 12, 11, 10 10/22/94 9, 8, 7, 6 CTD SBE-19 model 1240 It arrived in 1992 and it first calibration was made in 1995. Therefore, the calibration coefficients used were the ones from 1992. Slope and offset were obtained according to the time drift. Temperature: A = 3.67439294E-03 slope= 1 B = 5.79923710E-04 offset= -0.0011 C = 8.23609887E-06 D = -1.55263735E-06 F0 = 2408.120 Day B n b/n post-delta(t) offset --- --- --- --------- ------------- ------- 6 705 850 0.8294117 0.00129 -0.0011 7 706 850 0.8305882 0.00129 -0.0011 8 707 850 0.8317647 0.00129 -0.0011 9 708 850 0.8329411 0.00129 -0.0011 10 709 850 0.8341176 0.00129 -0.0011 11 710 850 0.8352941 0.00129 -0.0011 12 711 850 0.8364705 0.00129 -0.0011 13 712 850 0.8376470 0.00129 -0.0011 14 713 850 0.8388235 0.00129 -0.0011 18 717 850 0.8435294 0.00129 -0.0011 19 718 850 0.8447058 0.00129 -0.0011 20 719 850 0.8458823 0.00129 -0.0011 21 720 850 0.8470588 0.00129 -0.0011 22 721 850 0.8482352 0.00129 -0.0011 b: number of days between calibration and the day of CTD cast. n: number of days between calibrations. Post-delta (T): temperature-drift value according calibration certificate. Conductivity: M = 2.6 offset = 0 A = 2.33127200E-03 slope1 = 0.999796 B = 4.91763158E-01 slope2 = 0.999795 C = -4.12966273E+00 slope3 = 0.999794 D = 5.64959638E-04 slope4 = 0.999792 E = -9.5700E-08 slope5 = 0.999791 Day b n b/n (Pre-slope)-1 Slope --- --- --- --------- ------------ -------- 6 705 850 0.8294117 -0.000246 0.999796 7 706 850 0.8305882 -0.000246 0.999796 8 707 850 0.8317647 -0.000246 0.999795 9 708 850 0.8329411 -0.000246 0.999795 10 709 850 0.8341176 -0.000246 0.999795 11 710 850 0.8352941 -0.000246 0.999795 12 711 850 0.8364705 -0.000246 0.999794 13 712 850 0.8376470 -0.000246 0.999794 14 713 850 0.8388235 -0.000246 0.999794 18 717 850 0.8435294 -0.000246 0.999792 19 718 850 0.8447058 -0.000246 0.999792 20 719 850 0.8458823 -0.000246 0.999792 21 720 850 0.8470588 -0.000246 0.999792 22 721 850 0.8482352 -0.000246 0.999791 Therefore, five *.con configuration files were created (PR14 A.con to PR14E.con) Pressure A0 = 4966.795 A1 = -1.301054E+00 A2 = 1.217797E-08 Step1 1. Convert data from *.hex to *.cnv format using DATCNV program and *.con configuration file. 2. Deleting negatives velocities using the leewoce.bas program 3. Checking and cleaning the header files. 4. Computing the average down velocity value (X). 5. to apply the AlingCTD program to correct temperature and conductivity time response shift from the CTD'sensors. Step 2 a) To apply DATCNV program to average observed values meter by meter. Step 3 a) To apply Winfilter program to filter data after step 2 , using a flexible windows determined by the user. A.3.8 Satellite image acquisition and processing: (None) A.3.9 Shipboard computing: (None) Note: All data from WOCE PR14 and SR1 cruises, have been passed to the National Oceanographic Data Centre of Chile (CENDOC) for data management purposes and to be quality controlled according to normal WHPO procedures. Once finished they have been sent to the WOCE Hydrographic Program Office at the Scripps Institution of Oceanography for archival. The data remain non-public access until new notification. However, specific authorization will be forwarded to interested scientist if their goals do not overlap SHOA's goals. For major information write to: Ricardo Rojas Chief of CENDOC Casilla 324 Valparaiso CHILE e-mail rrojas@shoa.cl who can direct your request to the appropriate decision channels. Do not write directly to Principal Investigators. Figure 1. Location of Hydrographic stations during PR14-94