Glider Project Deployed Recovered Days Distance Start/
End Voltage
Air Time POC Notes Payload KMZs Data Metadata
ru25d-191 LTER 2010-12-18
15:00 GMT
2010-12-28
15:10 GMT
10.01 209.4
km
14.99 Volts
12.85 Volts
940
minutes
Miles
Aragon
11 0156 kmzs

deployment Notes (11)  

Select Category: Deployment Glider All

Posted/
Updated
Category
2011-08-21 21:54 GMT
dkaragon
2011-08-21 21:55 GMT
dkaragon
configuration Science payload:

ctd-156
2010-12-28 19:10 GMT
dkaragon
deployment Recovered by Travis Miles and Palmer crew, Tue Dec 28 15:57:52
2010-12-26 23:48 GMT
dkaragon
deployment Route adjusted slightly to get the glider to sample a bit more of the basin. Really need to get it recovered ASAP and after 2 more lines it will position for recovery, re-battery, re-deployment.
2010-12-24 03:38 GMT
dkaragon
deployment Turned glider back to full speed. Retasking to transect the basin a couple times. Please watch for ice, I am uneasy about ice to the south. I have not seen convincing imagery down there for awhile.
2010-12-21 20:42 GMT
dkaragon
2010-12-21 20:42 GMT
dkaragon
deployment Results of first power saving tuning:
AFTER:
-18.4 cm/s, 14 cm/s up
BEFORE:
-22.3 cm/s down, 21.0 up

25% of max speed, with 31% less pump usage.

To get closer to 15 cm/s, we have -18.4 --> -14 cm /s is about .7609 so using 195 + 179 = 374 cc --> 374 / 2 = 187 cc --> 187 * .7609 = 142 cc

Changing dive pump throw to -142 cc
2010-12-21 15:53 GMT
dkaragon
deployment Retasking to Cape Lancaster.
Shortened TBD to 12 sec sampling rate in preparation of entering narrow channels.
2010-12-20 23:28 GMT
dkaragon
deployment put u_max_water_depth_lifetime 0
It was using old altimeter hits just like ru26d
2010-12-20 16:01 GMT
dkaragon
deployment Saving pump power:
-22.3 cm/s down, 21.0 up
540 cc throw * .03% = 16 cc too heavy, shift pump to: -254,+270 --> 524 cc
Speeds should be equal now at -21,21, set target at 15 cm/s so 30 / 42 = 28.6% slowdown:
524 * .286 = 150 cc, so 75 cc on both sides:
-254,+270 --> -179,+195
This is total throw of 374 cc, 374/540 = 69%
2010-12-18 16:10 GMT
dkaragon
2010-12-18 16:10 GMT
dkaragon
deployment Stepping depth down, 50, 150, now 300 double dives to escape islands. Overloaded abort, hopefully c_science_send_all = 0 is working correctly. Will have to check that once we're in more open water.
2010-12-18 16:09 GMT
dkaragon
deployment Deployed via zodiac out of Palmer, Travis Miles & co.
2010-12-18 15:28 GMT
kerfoot
deployment Second attempt at deployment following a leak detect abort during the first deployment