2012 Ship Schedule
2012 NSF Proposal
Operations at Grays Harbor (Langseth shooting, Focused array recovery)
R/V Wecoma Replacement
OBS sampling rates
Participants : Richard Allen, Bob Dziak, Emilie Hooft, Dean Livelybrooks, Jeff McGuire, Susan Schwartz, Doug Toomey, Maya Tolstoy, Anne Trehu, William Wilcock, Richard Carlson
2012 Ship Schedule
Discussion of Need for Chief Scientists on OBS Recovery Cruises
During the 2012 field season some expeditions will only involve recovery of instruments. Is it necessary to have Chief scientists on recovery cruises? Cut down on costs. Two cruises like this next year. People like Andrew Barclay on board - or WHOI/SIO equivalent. CIET charges small rel. to OBS operations. $ for CIET and OBS costs comes out of science budget, however. ARRA funded construction only. NSF is trying to get more $ to support Cascadia efforts. For these cruises we discussed opportunities to reduce personnel costs. The goal is to keep data acquisition costs as lows as possoble. Options for recovery only cruises include:
- Sail without a Chief Scientist.
- Sail with a single Chief Scientist
- Change formula so that it covers time at sea and 2 weeks post cruise.
CIET had strong opinions against sailing without a Chief Scientist. The reasons being several: Someone needs to be keeping an eye on the scientific objectives and that an engineer or technician has other pressing responsibilities at sea which would detract from their ability to make science-based decisions; the Chief Scientist is responsbile for the preparation of a cruise report and has the experience and insight to do a good job; a lead PI needs to prioritize staff time; a scientist is needed to oversee collection of data related to timing.
Anne: Pick up cruises need to be followed rapidly by a cruise report w important information about the data. Decisions such as how to prioritize staff time on a problematic issues. May be less work to be done prior to the cruise.
Doug. Ideas: Two chiefs on deployment cruises necessary. One chief on recovery w no pre-cruise time. Can also discuss other aspects of the formula during the proposal.
Richard. Essentially operating a facility. Facility usually has a target budget and adjusts the workload according to that budget. In the case of teh CI the work statement is set - community science plan. But the budget is not and a lack of a target budget is a little awkward.
Doug. Defining precedents now.
Jeff. Have IICs been asked to express their point of view.
- Need to know chief scientists when we submit proposal for budgeting.
- Emilie, Bob Dziak are both willing to go to sea as well.
✔✔Action Item 1: Ask OBSIP IICS to express their point of vew on the above (Doug)
Discussion of Individual 2012 Legs
Leg 1 R/V Wecoma - Recover 25 WHOI OBSs; 12 May - 26 May, 2012
- Ship capacity. Does Oceanus have more or less deck space than the Wecoma? Back deck is shorter than on the Wecoma - laid out differently. Certainly does not have more capacity. Layout is also more difficult to work with.
✔✔Action Item 2: Anne remembers that it is doable, but requires replanting. Space on O-1 deck for extra vans that can be used. John Collins will investigate.
Leg 2 R/V Thompson w Jason: 10 July - 24 July, 2012
- Dates fairly set.
- Langseth shooting in Gray's Harbor. Moving recovery back would affect turn-around time for the TRMs, which Maya is concerned about.
Could use the OBSs to record the shots from the Langseth. Questions
- Will TRMs have sufficient battery life to record shots?
- Can they be turned around in less time?
- Will sevicing be done on west coast?
- Can LDEO do turnaround with delay in cruise?
- Flexibility in Langseth schedule? If Langseth were 1- 3 days earlier, some shooting could be done to the OBSs.
Dean This would be a good and interesting cruise for CC@sea continuation and has space on the ship.
✔✔Action Item 3: Ask Lamont: Battery expectations and data storage capacity? How short can the turnaround time be? 2 1/2 weeks? Still turning around on West coast? (Doug)
- Recovery only cruise
- time frame - next few weeks get in well before Feb 15th deadline.
- subcontract charges do not recur in the future years.
- Berkely does not she the subcontract set up yet.
- Budget formula discussion - efficient to do by telephone.
Action Item 5: Set up conference call for early next week and include strawman (Doug)
GeoMapApp and Bathymetry Data
- CIET would like all the bathymetry collected last summer to be included.
- Getting existing data included in GeoMapApp was half finished. ONR data that already existed should also be included
- Send Rick a one-pager outlining the data that should be included. William make a first cut and send on to CIET. Include: relevant facts pertaining to the data and what the needs are.
- GeoMapApp has site locations from our cruises built into it.
Action Item 6: Include GeoMapApp info in web site (Doug)
Cruise Report for Leg 3
OBS sampling rates
William asked about sampling rates of OBSs; an issue in looking at whales. SIO are sampled at 50 Hz. WHOI has not responded. CIET should discuss and specify the desired sampling rate.
What are the sampling rates for all instruments?
Science oversight committee (CIET) should have input on sampling rates. Questions:
- What sampling rates have been used for the first set of deployments?
- What are the instrument capabilities? I.e., what sampling rates can be used in future deployments and what the impacts on storage capacity and batteries.
- Decisions regarding sampling rates should be made on basis of scientific needs and instrument capabilities.
Action Item 9: Invite OBSIP IICs to participate in next conference all. Doug to send out questions for IICs prior to next call. (Doug)