Deployment NameGliderProjectDeployedRecoveredDaysDistancePayload BayOSNotes
ru28-20120814T1519ru28EPA2012-08-14
15:19Z
2012-08-30
08:59Z
15.9302.8 km01037.09

All Notes (24)

Created by: dkaragon @ 2012-08-30 17:13:38Informational

Recovered by Dave Kaminsky and Shannon Smith out of Cape May NJ on DEP vessel.

Created by: dkaragon @ 2012-08-29 22:53:45Informational

final recovery waypoints

Created by: dkaragon @ 2012-08-29 21:57:12Informational

Fixed the depth 9 m, 2.5 off surface.

Created by: dkaragon @ 2012-08-29 14:53:09Informational

Fixed depth for one segment, flew much better.

Trying 4 m off bottom inflection.

Created by: dkaragon @ 2012-08-29 11:56:53Informational

u_min_altimeter = 4 m
u_alt_min_post_inflection_time = 2 sec

battpos from .8 on dives to .7

Created by: haldeman @ 2012-08-28 17:57:51Informational

Added recovery point inshore

-74 48.7220 38 55.8310

Created by: haldeman @ 2012-08-28 12:01:01Informational

Offshore wpt changed inshore so glider will be close for recovery Thursday a.m.

-74 35.7050 38 56.1350

Created by: dkaragon @ 2012-08-28 11:51:35Informational

U_EXP_ALT_CORRECTION .75 FROM 1.5
REDUCED USAGE MODE OFF

Created by: dkaragon @ 2012-08-25 09:23:33Informational

-200 cc dives

Created by: dkaragon @ 2012-08-21 17:30:45Informational

2 hour missions, may speed glider up if keeps losing progress on this leg.

Created by: dkaragon @ 2012-08-18 10:07:27Informational

+.9 D, -.52 C @ +-180 cc

Created by: dkaragon @ 2012-08-17 19:47:45Informational

+- 180 cc, AP pitch

Created by: dkaragon @ 2012-08-17 10:40:42Informational

+- 200 cc dive and climbs to slow down. Back to AP pitch

Created by: dkaragon @ 2012-08-16 20:48:45Informational

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.

Created by: dkaragon @ 2012-08-16 16:04:08Informational

3 m off bottom

Created by: dkaragon @ 2012-08-16 12:55:43Informational

Inflect 3.5 m off bottom, lets see how we do.

Created by: dkaragon @ 2012-08-16 05:05:03Informational

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.

Created by: dkaragon @ 2012-08-15 23:00:13Informational

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.

Created by: dkaragon @ 2012-08-15 20:55:48Informational

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.

Created by: dkaragon @ 2012-08-15 17:35:16Informational

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.

Created by: dkaragon @ 2012-08-15 10:02:58Informational

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.

Created by: dkaragon @ 2012-08-14 22:13:10Informational

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.

Created by: dkaragon @ 2012-08-14 12:13:07Informational

Deployed by Dave Kaminsky, Shannon Harrison aboard EPA RV Clean Waters.

Created by: haldeman @ 2012-07-10 17:22:49Informational

CTD 0103P
Optode 1504 (RU28 original)