Del Mar mooring

Del Mar mooring

Del Mar mooring

Del Mar mooring

O2/Chl

O2/Chl, pH 35m

T/S, O2 90m

pH in 2011

Hypoxia observations

35m

near-bottom

Real-time data at

http://mooring.ucsd.edu/projects/delmar/delmar_data.html

1) have you ever been on a boat?  What type?  How long?  How often?

2) do you get seasick?

3) have you handled ropes before?  on a boat?  climbing?  other?

Interests and expertises:

Emily: pH, Durafet calibrations, coupling (covariance) of pH, oxygen, T timeseries (absent Apr 12- May 22, Jun 8-10)

Susan: pH, oxygen, chl (absent May 12-22)

Sam: ADCP, chlorophyll

Matthew: communication circuits, timeseries analysis,

Raymond: met sensors, circuits, C

Activities:

1) class room session to learn about the mooring and plan the cruises,including - make cruise plans

- make recovery plan (how to get the mooring on the ship safely including recovery of anchor)

- make list of lab & deck equipment needed

- design CTD sampling

- personal preparations (clothing, transport, etc)

2) recovery cruise, including

- loading of ship and science equipment (1 day, 2-3 students)

- instruction in safe operations, rope handling, rope&winch commands, tag line, air-tugger, winch usage, etc

- CTD casts carried out by students under supervision (prep of equipment, data acquisition) (before and after recovery)

- mooring operations (recovery) executed by students under supervision

- cleaning of buoy and recovery of sensors from buoy

- transport of buoy back to SIO

3) Mechanical work - cleaning and disassembling of buoy in seaweed canyon, 2 full days but can rotate (2-4 students at one time)

4) Data analysis

- read-out of raw data from mooring sensors in lab

- application of calibrations

- analysis of data in groups of two

5) Prepare for deployment

- help with mechanical preparation of the new mooring &

- help with sensor servicing: cleaning, inspect, re-battery, possible ship to manufacturer for calibration

- consider sensor sampling issues

- test and set-up new sensors to be deployed

- participate in full integration test

6) deployment cruise:

- transport and loading of ship and equipment

- pre-deployment and post-deployment CTD casts

- mooring operations (deployment) executed by students under supervision

Class room sessions:

Possible time slotsMon Tue WedThuFri

Cruise windows:

Recovery 25 May (Friday)

Deployment 15-22 June (to be confirmed)

Notes/materials/powerpoints/software:

Will be posted on anonymous ftp server geo.ucsd.edu,log in as “anonymous” with your email address as password, and go to/pub/usend/teach/spring12/ship (may need secure ftp protocol, e.g. sftp), or point your browser to ftp://geo.ucsd.edu/pub/usend/teach/spring12/ship

Contact:

Uwe Send, NH 446usend@ucsd.edu822-6710

Nominal mooring location 32° 55.6N, 117 ° 18.9W

Need before the cruise:

- Cruise plan (schedule)

- Inform ship sked and STS

- Packing lists (what do we need to prepare and take)

- Assign instruments (to read up, get manuals, etc)

- Assign people for packing, transporting, loading, setting up/securing

Cruise plan (Status: 2012-05-10):

Distance to steam 23nm, 3hrs each way with harbor transit

Do 2 CTD casts next to mooring for instruction and testing (2 groups)

Calibrations:No pH since sensor died (battery)

Oxygen: remove sensors from mooring, dump data, reprogram for calibration CTD cast, attach to rosette, and do calibration cast with water samples

Chlorophyll: similar to oxygen, filter samples and freeze the filter paper but dataare only useful at night – do this off Pt. Loma around 8pm

Leave 8am, arrive 11am, 2 CTD casts 11-12:30, mooring recovery 12:30-14:00.Clean buoy and remove sensors and dump microcat data until 17:00, deep cast with microcats (Seacat ?), 18:00, steam to Pt.Loma 20:00, O2/chl calibration cast until 21:00. Arrive 22:00.

Responsibilities for instruments:

•Atmospheric (wind, temperature, pressure, humidity, precipitation) and buoy controller: new data from wind sensor (Matthew and Raymond)•Camera (Matthew and Raymond)•Physical (ADCP, MicroCats, SeaCats): ADCP Sam •Biogeochemical (oxygen, chl-a fluorescence, pH) : pH - Emily , O2 - Susan, chl - Susan/Sam

Duties:•Read sensor/instrument manuals and bring electronic copies•Make list of calibration reference required (CTD, added sensors, water samples)•Confirm prior to departure that calibration references are on board and ready to operate, incl. documentation•Confirm after recovery that instrument status is properly recorded on log sheets•Confirm after recovery that data is downloaded•Make backup copies of data•Back ashore, transfer data to main data server

Help with loading needed:

2012-05-23: Karen, Sam•Pack boxes, load gear onto truck•Meet in Seaweed Canyon (T-45) at 11:00•Duration 2h

2012-05-24: Matthew and Raymond•Drive gear to ship and load onto ship•Meet in lab (NH 116) at 10:00•Duration 3h

2012-05-??: •Unload ship and drive gear to SIO, unload truck•Meet in lab (NH 116) at 09:30•Duration 3h

During week 2012-05-?? – 2012-05-??:•Misc. gear refurbishment•TBD

Brainstorming Packing Lists:

Close-toed shoes, working (dirty) clothes, sunscreen, spare clothes, hard hats, life vestsWebbing, straps, tie-down equipment, zip tiesBlock, bosun’s hooks, lines, heavy-duty shackles & lines for mooring pick-upTire for buoy placement on deckTools for every possible hardware connection (wrenches, screwdrivers, pliers, hammers)Cables with connectors matching the instruments, inductive modemsLaptops, USB drivesScrubs & brushes, knives, scrapers for buoy cleaning; generic cleaning suppliesSpare batteries, standard instrument-specific spare kitsCloth, tape, plastic bags to pack sensors moist & darkWater sampling equipment (bottles, chemicals, filtration gear) for salinity, oxygen, fluorescence