Glider Project Deployed Recovered Days Distance Start/
End Voltage
Air Time POC Notes Payload KMZs Data Metadata
ru28-359 EPA 2012-08-14
15:19 GMT
2012-08-30
12:59 GMT
15.90 301.8
km
15.26 Volts
12.67 Volts
2160
minutes
Aragon
Kaminsky
Harrison
24 0103 kmzs

deployment Notes (24)  

Select Category: Deployment Glider All

Posted/
Updated
Category
2012-08-30 21:13 GMT
dkaragon
deployment Recovered by Dave Kaminsky and Shannon Smith out of Cape May NJ on DEP vessel.
2012-08-30 02:53 GMT
dkaragon
deployment final recovery waypoints
2012-08-30 01:57 GMT
dkaragon
deployment Fixed the depth 9 m, 2.5 off surface.
2012-08-29 18:53 GMT
dkaragon
deployment Fixed depth for one segment, flew much better.

Trying 4 m off bottom inflection.
2012-08-29 15:56 GMT
dkaragon
deployment u_min_altimeter = 4 m
u_alt_min_post_inflection_time = 2 sec

battpos from .8 on dives to .7
2012-08-28 21:57 GMT
Haldeman
deployment Added recovery point inshore

-74 48.7220 38 55.8310
2012-08-28 16:01 GMT
Haldeman
deployment Offshore wpt changed inshore so glider will be close for recovery Thursday a.m.

-74 35.7050 38 56.1350
2012-08-28 15:51 GMT
dkaragon
deployment U_EXP_ALT_CORRECTION .75 FROM 1.5
REDUCED USAGE MODE OFF
2012-08-25 13:23 GMT
dkaragon
2012-08-25 13:23 GMT
dkaragon
deployment -200 cc dives
2012-08-21 21:30 GMT
dkaragon
deployment 2 hour missions, may speed glider up if keeps losing progress on this leg.
2012-08-18 14:07 GMT
dkaragon
deployment +.9 D, -.52 C @ +-180 cc
2012-08-17 23:47 GMT
dkaragon
deployment +- 180 cc, AP pitch
2012-08-17 14:40 GMT
dkaragon
deployment +- 200 cc dive and climbs to slow down. Back to AP pitch
2012-08-17 00:48 GMT
dkaragon
deployment 3.5 m off bottom

Strange phenomenon noticed. At 3 meters the glider saw deeper bottoms as it approached. Will have to investigate this as another issue with altimeters. Perhaps u_min_altitude could fix this.
2012-08-16 20:04 GMT
dkaragon
deployment 3 m off bottom
2012-08-16 16:55 GMT
dkaragon
deployment Inflect 3.5 m off bottom, lets see how we do.
2012-08-16 09:05 GMT
dkaragon
2012-08-16 09:04 GMT
dkaragon
deployment u_max_bottom_slope .04
u_alt_reqd_good_in_a_row 2
u_min_altimeter 2

Slightly better but lets see how these final settings work.
2012-08-16 03:00 GMT
dkaragon
deployment Previous settings in note did not work, reverted to last mission final settings:
u_min_altimeter = 4 (last mission was 2)
u_max_altimeter = 12
u_max_bottom_slope = 4 (typo, need to fix)

Plan tomorrow is try to make these altimeter settings simpler than having to change all these defaults.
2012-08-16 00:55 GMT
dkaragon
deployment Bottom depth is better now, but its sampling more.

Trying u_min_altimeter 6 and inflecting 4.5 off the bottom to get us flying reliably overnight. More tests tomorrow.
2012-08-15 21:35 GMT
dkaragon
2012-08-15 21:35 GMT
dkaragon
deployment Pitch is steady now and bottom sampling still present. Switching over to experimental altimeter to fix altitude discrepancy:
actual depth = m_water_depth + 1.2 + .3 (ctd pressure height above bottom)
f_altimeter_model -1
u_exp_alt_correction 1.5
u_exp_alt_pwr_stb_time 5

Next step will be to add the altimeter filters to prevent seeing surface if that is a problem. Final step will be to increase height off bottom for inflection.
2012-08-15 14:02 GMT
dkaragon
deployment Some light bottom sampling.

Will try to fix by changing one item at a time, first is fixing battpos to fix pitch angle since it seems to be doing poorly adjusting the battery, perhaps too high a gain combined with 30 m pump over inflect.
2012-08-15 02:13 GMT
dkaragon
deployment Pre-deploy configuration error on TBD lead to no optode data in TBD file.

Re-configured TBD to send back optode. NBD files are too large to transfer to get the optode data.

Changed SBDLIST because x_inflecting was causing too much overhead. This should lower SBD size.
2012-08-14 16:13 GMT
dkaragon
deployment Deployed by Dave Kaminsky, Shannon Harrison aboard EPA RV Clean Waters.
2012-07-10 21:22 GMT
Haldeman
configuration CTD 0103P
Optode 1504 (RU28 original)