Dataset: Bio-optical spar
Deployment: OC404-04

Please refer to descriptions for each cruise (deployment).

Calibration of instruments:
SBE-39s and SBE-37 were calibrated by SeaBird.

ECO-FLNTU Chl a and Optical Backscatter sensors were compared to the Oceanus CTD fluorometer during
comparison casts for each cruise.

Details of the UCSB Spar buoy deployed during EDDIES 2004 Survey 2.

Due to the cancellation of the EDDIES Tracer 1 cruise, the deployment during
the Survey 1 leg was recovered prior to the end of Survey 1. During Survey 2
(oc404-4), the UCSB spar bouy was again deployed after determination of the eddy
center position. The second mooring was recovered near the end of Survey 2.

Calibration of instruments:

SBE-39s and SBE-37 were calibrated by SeaBird.

ECO-FLNTU Chl a and Optical Backscatter sensors were compared to the Oceanus
CTD fluorometer during a comparison cast (oc404-4 053) during EDDIES 2004 Survey
2. Using the facory Chl a slope values, yielded Chl a values that were about
twice that of the CTD fluorometer. The comparison of the extracted Chl a and
Phae a samples to the CTD fluorometer also showed the CTD fluorometer to be
reading too low. Therefore, the ECO-FLNTU readings of all 3 profiles were
matched with corrected CTD fluorometer values rather than factory calibrated CTD
fluorometer values for oc404-4 053. There was significant differences in the Chl
offset count for all 3 ECO-FLNTU sensors. The ECO-FL sensor failed to log
during the comparison cast, so no adjustment to the factory calibration factors
could be determined for this sensor.

The Optical Backscatter channel of the ECO-FLNTU was too insensitive for
optimal use in these clean waters. Therefore the data is not reported in our
report.

Drogue Mooring details:								
		Date		GMT	Latitude	Longitude
Launch:		26-Jul-04	1016	30 40.57 N	65 20.56 W	
Recovery:	4-Aug-04	2028	30 46.23 N	65 46.92 W	
			


Buoy Instruments: 							
Depth:			Sampling interval  Data Recovery    s/n	
Surface	ARGOS/GPS positions  	every hour	82%		
10	temp, pressure		1min		100%	SBE39-376

40	temp			1min		100%	SBE39-497

70	temp			1min		100%	SBE39-499

80	temp			1min		100%	SBE39-500
80	Chl fl, turbidity	4min		100%	ECO-FLNTU 085

90	temp			1min		100%	SBE39-501
90	Chl fl, turbidity	4min		100%	ECO-FLNTU 086

100	temp, cond, pressure	1min		100%	SBE37SM-406
100	Chl fl, turbidity	4min		100%	ECO-FLNTU 087

110	temp			1min		100%	SBE39-502
110	Chl fl			4min		100%	ECO-FL 055

120-138	Holey Sock Drogue	none