Wednesday, November 21, 2012

R/V Melville day 11

Day 11: Question of the day
Why are you measuring salt? - Miles Lawrence
 Are you work in groups? What is the work of each person? - Ludim Bello

-We are gathering measurements on salinity to measure density or how dense the water is. This data  helps us understand fluctuations in mixing throughout the water column. 
- We work in 3 shifts, from 8pm-4am(my shift), 4am-12pm ( Julie's shift), and lastly from 12pm-8pm.
Each Shift has to have one person watching the CTD screen looking for drastic changes in tension, and telling the winch operator how deep to send the package. Another person must assist with this process ( 2 sets of eyes are better then 1), a third person must be the watcher, so when ever the CTD is within 100 meters of the surface a person has to be outside on the deck in the vision of the winch operator, it is this persons job to give hand signals to the winch operator to tell him when the equipment is almost at the waters surface so the winch knows to stop, this person must also check to make sure the cable does not rub against the hull of the ship and to tell the winch and bridge to stop if the wire angle is not good. The last person is usually the floater, this person can jump from job to job, and also gets snacks for the rest of the crew.
Data from today -BIG CURRENT- 

Chief scientist Ruth Musgrave analyzing data

Julie Alverez ready to launch an XPT 

Ready, Aim, Fire! -Hanne Beate Skattor 

Scientists Paul Chua and Jonathan Nash attaching a microcat 

Elizabeth Bunin ready for work

The mulltibeam data of Mendocino ridge

The seagulls that follow the ship every night

Paul Chua and Elizabeth Bunnin spotting a whale

The view of the deck from the bridge 


  1. Can You Explain what a XPT is ?
    -Lupe Rangel Pr.3

  2. How long do the experiments last? How often are you recording data
    Tyree Robinson, Marine Science