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DCR Guidelines


									Daily Cruise Report (DCR) Guidelines

Science leads or co-leads should submit the DCR for his/her vessel at the end of each day.
DCRs should describe the day's activities aboard the vessel, including locations sampled,
water depths sampled, and reports of observed fluorescence and DO anomalies.
DCRs should not contain data plots or interpretations.
Data plots and interpretations should be emailed to the science leads and land-based
support team to track observations at sampling locations.

A separate contact list provides email addresses and phone numbers for all field and
land-based teams.

Please email your daily reports to all science leads, co-leads, CSA ops managers, and
CSA science leads. Also cc Laura Riege, Bill Graeber, Bob Mulcahy, Jodi Harney, and Gretchen Thach.

Thank you and best of luck!
Jodi Harney (, 407-408-3154)
                                                 Broader Gulf of Mexico Water Column Study
                                                             Daily Cruise Report (DCR)
Vessel :                       M/V Wes Bordelon                                        Current Activity:       Waiting on Weather
Person completing DCR:         Donald J. Lee, P.G.                                     Current Station:        Station T12-S10
Date :                         8/18/2010                                               Lat: 26.46946           Lon: -90.04391
Reported Interval:             8/18 3:30 to 8/18 20:00
General Notes
In transit all night from Bordelon Marine Docks to Station T12-S08.
Progress Summary - Last 24 hrs
0330 Hydraulic hose to rudder fails. Crew repairs and replaces hydraulic hose.
0400 Resume transit to station T12-S08
0600 Begin to set up GO FLOs for sampling.
0700 Gray Lawson (CSA) conducts health and safety tailgate meeting with crew.
0809 Arrive at station T12-S08. Estimated Water Depth from bathymetric map = 960 m, cast depth = 900 m. No visible oil sheen.
Wind approximately 15 knots from 200 degrees.
0844 CTD at cast depth of 900 m, begin collecting samples on up cast.
0850 Collect sample from cast depth of 900 m according to the SOP.
0857 Collect sample from 775 m, where an shift in the CDOM fluorescence was observed in the downcast. This shift was not
apparent on the upcast. On the downcast the maximum CDOM values shifted from approximately 2.2 to 2.5 mg/m^3 to over 3.1
mg/m^3. This excursion did not have the characteristic shape of a spike as seen previously in other locations.
0905 Collect surface water sample designated D-1.
0907 Collect a sample at 439 m where a DO minimum occurs with a value of approximately 3.87 mg/L
0918 Collect a sample at 95 m where an distinct change in gradinent in the sigma t indicates the location of a pycnocline
0921 Collect a sample at 2 m that is routinely collected at all stations. No visible sheen was apparent at this location.
0923 CTD array is on boat deck. Samples are collected from the GO FLO bottles.
1039 Decontaminate sampling array and transit to station T12-S09.
1214 Arrive at station T12-S09. Wait on squall line to dissipate.
1231 Begin downcast with CTD.
1235 Collect surface sample designated D-1.
1254 CTD at total cast depth of 931 m. Collect sample designated D-2 at this depth according to SOP.
1302 Collect sample D-3 at 884 m where a change in the gradient of the DO was noted and there was a slight (0.25) increase in the
Fluorescence measurement.
1318 Collect sample D-4 from approximately 532 m, where there is a slight decreas of approximately 0.25 to 0.3 in the DO
1322 Collect sample D-5 from approximately 442 m, where the minimum DO measurement in the water column occurs.
1332 Collect sample D-6 from approximately 95 m at an apparent change in sigma t believed to be associated with a pycnocline
1336 Collect routine near surface sample D-7 from 2 m below water surface
1337 CTD array on surface. Place water samples in to sample containers.
1437 Collect Field Blank by placing laboratory grade deionized water into 3 HCl-preserved and 3 non-preserved 40 mL V\OA vials

1500 Participate in teleconference with other vessels, while transiting to station T12-S10.
1620 Arrive at station T12-S10. Squall line at site causes cancellation of sampling. Torrential rain and 30+ knot winds, secure
equipment on deck and place supplies in CONEX.
1700-2200 Prepare Daily Cruise report, Field Forms and COCs for the day.
Planned Activities - Next 24 hrs
Continue to sample along Transect 12 (T12) until either: 1) transect is completed or 2) two consecutive casts in zone of historic
fluorescence or dissolved oxygen (DO) minima indicate no effects.

SIMOPS Issues or Concerns

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