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  ResearchMonterey Bay Cruise Logs October 2002, Monterey Bay 

October 2002 Data Summary

Instruments were deployed from R/V Point Sur.  Primary IOP instruments were deployed on the HydroProfiler package to collect data throughout the water column, and the WALRUS hyperspectral radiometer buoy was deployed in a tethered mode to collect upwelling and downwelling light spectra, just above and just below the surface.

To receive access to the data, please contact HOBI Labs.

INSTRUMENTATION
Instrument Short

name

Manufacturer Serial

Number

Deployment

Platform

Measurements
a-Beta HOBI Labs AB000628 HydroProfiler β(140, 532 nm), bb, K, a (532 nm)
c-Beta HOBI Labs CB000316 HydroProfiler β(140, 470 nm), bb, c (532 nm)
HydroScat-2 HS2 HOBI Labs H2000323 HydroProfiler β(140), bb (470, 676nm), fl (676nm)
HydroScat-4 HS4 HOBI Labs H4020101 HydroProfiler β(140), bb (420, 488, 660, 850nm)
HydroScat-6 HS6 HOBI Labs HS980514 HydroProfiler β(140), bb (420, 442, 470, 510, 589, 676nm), fl(510, 676nm)
HydroBeta HOBI Labs Prototype HydroProfiler β(532nm) (10, 20, 30, 45, 90, 110, 120, 130, 140, 150, 160, 170)
AC-9 AC91 WET Labs AC90124 HydroProfiler a, c (412, 440, 488, 510, 532, 555, 630, 676, 715 nm)
SBE-19 CTD Sea-Bird Electronics  983 HydroProfiler Salinity, Temperature, Depth
HydroRad-E1 HR HOBI Labs SR020101 On Deck Ed(surface, 350 to 850 nm)
WALRUS WR HOBI Labs WR020101 Tethered buoy

Ed(surface), Ld(surface), Lu(air), Lu1(1m), Lu2(2m), (350 to 850 nm) (configuration picture)

PRR-600S PRR Biospherical Instruments 19617 HydroProfiler Ed(surface) (412, 443, 490, 510, 532, 555, 670 nm)
PRR-610 PRRS Biospherical Instruments  19618 On Deck Ed(profiling), Ld(profiling) (412, 443, 490, 510, 532, 555, 670 nm)

Cast designations:

  • HP = HydroProfiler profile
  • W = WALRUS; the WALRUS buoy is allowed to drift behind the ship, well away from its shadow, while Es values are simultaneously measured on deck.

Each day, a separate series of cast numbers was used for each type of cast.  In some cases W cast numbers are skipped to synchronize with HP numbers.

DATASETS
  Instruments
Date

(M-D-Y)

                

Cast

 

Start
Time
(local)
Lat 36 N Lon
121 W
Bottom
Depth
(m)
Profile
Depth
(m)
Notes CTD HS2 HS4 HS6 AC9 HR WR PRR PRRS
10-02-03 W1 10:27 57.181' 53.643' 12 NA Over red tide                  
10-02-03 HP1 10:47 57.559' 53.992' 10-12 1 Near-surface time series to observer red tide characteristics      
10-02-03 HP2 11:14 57.697' 54.458' 12 10 Red tide      
10-02-03 HP3 12:04 57.160' 53.825 12 1 Long surface time series in red tide.  Data collection continues through W3      
10-02-03 W3 11:25 57.751' 54.434' 11 NA Red tide less intense.  Includes some Es samples with direct sun blocked.                  
10-02-03 HP4 12:12 57.082' 53.845' 12 10          
10-02-03 HP5 12:20     ≈12   Test of Hβ dark offsets; data collected throughout transition into water.            
10-02-03 HP6 12:49 56.657' 53.294' ≈12 1 Further Hβ dark testing.            
10-02-03 HP7 13:02 56.566' 53.245' ≈12 1 Time series, continues through W7                  
10-02-03 W7 13:07 56.551' 53.238' ≈12 NA        
10-02-03 HP8 13:22 56.434' 53.138' ≈12 11        
10-02-03 HP9 15:08 48.052' 48.733' 150 142          
10-03-03 HP1 9:58 46.527' 54.475' 500 400 Sun-blocked Es samples approx every minute        
10-03-03 HP2 10:52     500 2 Long time series during W1 and W2        
10-03-03 W1 10:40 46.647' 53.207' 500 NA 20 samples                  
10-03-03 W2 10:44 46.647' 53.207' 500 NA 20 samples, incl sun-shaded Es                  
10-03-03 HP3 12:23       2 Near-surface test of Hβ dark offsets            
10-03-03 HP4 14:00 49.736' 58.216' 500 240 Cast overlaps W5 and W6 *aβ and aβ on upcast only * *        
10-03-03 W4 14:04 49.741' 58.151' 500 NA Sun-shaded  Es                  
10-03-03 W5 14:11     500 NA                    
10-03-03 W6 14:18 49.791' 57.883' 500 NA Sun-shaded  Es                  
10-04-03 W1 9:44 47.907' 49.168' 150 NA Sun-shaded  Es                  
10-04-03 W2 9:52 47.910' 47.357' 150 NA                    
10-04-03 HP1 9:52 47.919' 49.383' 150 110      
10-04-03 W3 10:05 47.906' 49.313' >150 NA Sun-shaded  Es                  
10-04-03 HP2 10:15 47.906'

to

47.525'

49.313'

to

50.420'

200-230 208 Profile while slowly under way, overlaps with W4, W5, W6      
10-04-03 W4 10:21 47.708' 49.739' ≈200 NA Under way                  
10-04-03 W5 10:29 47.606' 50.178' ≈215 NA Under way                  
10-04-03 W6 10:37 47.525' 50.420' 230 NA Under way                  
10-04-03 HP3 10:45 47.525'

to

46.505'

50.420'

to

54.913'

Varies ≤358 Continuation of HP2 upcast, starting at ≈75m. Continues for 3 more cycles, peak depths 190,  138 & 358 m. Overlaps W7 through W14      
10-04-03 W7 10:47 47.426' 50.875' Varies NA Under way; Sun-shaded  Es                  
10-04-03 W8 10:53 47.396' 51.070' Varies NA Under way                  
10-04-03 W9 11:00 47.342' 51.283' Varies NA Under way; Sun-shaded  Es                  
10-04-03 W10 11:09 47.267' 51.674' Varies NA Under way                  
10-04-03 W11 11:51 46.916' 53.353' Varies NA Under way; Sun-shaded  Es                  
10-04-03 W12 11:59 46.834' 53.669' 510 NA Under way                  
10-04-03 W13 12:10 46.725' 54.029' >500 NA Under way; Sun-shaded  Es                  
10-04-03 W14 12:27 46.567' 54.682 >500 NA Under way                  
10-04-03 HP4 13:00 46.486' 54.973' >200 200 HP on shadowed side of ship during downcast; sunny side on upcast. Overlaps W15; PRR surface unit shaded from direct sun for 1 minute at each time noted during W15 subcasts below.  Cast ends 13:40      
10-04-03 W15           Cast W15 split into parts A through K, each comprising 20 samples.  Casts with  Sun-shaded  Es noted below.                  
10-04-03 W15B 13:10 46.532' 54.932' >200 NA Sun-shaded  Es                  
10-04-03 W15D 13:18       NA Sun-shaded  Es                  
10-04-03 W15F 13:27       NA Sun-shaded  Es                  
10-04-03 W15H 13:35       NA Sun-shaded  Es                  
10-04-03 HP5 13:44       1 Near-surface Hβ dark testing.      
10-04-03 W15J 13:44       NA Sun-shaded  Es                  
10-04-03 W16 13:53 45.865' 53.603'   NA Thrust test: create turbulence and bubbles with ship props                  
10-04-03 W17 13:56 45.872' 53.454'   NA Thrust test                  
10-04-03 W18 14:00 45.884' 53.363'   NA Thrust test                  
10-04-03 W19 14:03 45.884' 53.252'   NA Thrust test                  
10-04-03 W20 14:07 45.891' 53.117'   NA Thrust test                  
10-04-03 W21 14:11 45.890' 53.00'   NA Thrust test                  
10-04-03 W22 14:14 45.884' 52.889'   NA Thrust test-especially good                  
10-04-03 W23 14:19 45.895' 52.754'   NA Thrust test-WALRUS between vortices                  
10-04-03 W24 14:22 45.916' 52.657'   NA Thrust test                  
10-04-03 W25 14:26 45.915' 52.551'   NA Thrust test                  
10-04-03 W26 14:30 45.905' 52.452'   NA Thrust test-especially good                  
10-04-03 W27 14:34 45.887' 52.311'   NA Thrust test                  
10-04-03 HP6 15:05 47.169' 52.087' 175 140        
10-05-03 HP1 9:56 57.167' 53.402' 10 8          
10-05-03 W1 9:58 57.166' 53.407' 10 NA                    
10-05-03 HP2 10:00     10 2-4 Near surface while under way to next station        
10-05-03 HP3 10:14 56.952' 53.667' 12 11 Red tide area; 2 profiles, overlapping W2 and W3      
10-05-03 W2 10:15 56.955' 53.684' 12 NA Sun-shaded  Es                  
10-05-03 W3 10:20 56.962' 53.768' 12 NA                    
10-05-03 HP4 10:23     12 1 Near surface while under way to next station      
10-05-03 HP5 10:32 56.829' 53.830' 12 11 2 profiles overlapping W4      
10-05-03 HP6 10:39 56.830'

to

56.473'

53.819'

to

54.220'

12-16 1-4 Near surface while under way to next station      
10-05-03 W5 10:57 56.472' 54.205' 16.5 NA Sun-shaded  Es                  
10-05-03 HP7 10:57 56.479' 54.206' 16.5 14 Sun-shaded  Es on PRRS for 1 minute at end of cast      
10-05-03 HP8 11:03 56.490'

to

56.126'

54.181'

to

54.590'

16.5-19.5 1-4 Near surface3 while under way to next station      
10-05-03 HP9 11:22 56.132' 54.593' 19.5 17 Overlaps W6 and W7      
10-05-03 W6 11:22 56.132' 54.593' 19.5 NA Sun-shaded  Es                  
10-05-03 W7 11:28 56.141' 54.520' 19.5 NA                    
10-05-03 HP10 11:31         Near-surface test of Hβ dark offsets; data collection starts on deck, overlaps W8            
10-05-03 W8 11:34                            
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