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  ResearchMonterey Bay Cruise Logs August 2003 Monterey Bay 

August 2003 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 AB000119 HydroProfiler β(140), bb, K, a (532 nm)
c-Beta HOBI Labs CB000112 HydroProfiler β(140), bb, c (532 nm)
HydroScat-2 HS2 HOBI Labs H2000322 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 HS980110 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 AC9 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(1m), (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 PRR 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.  During some casts, the ship propellers were spun to produce bubbles, to measure their effect on the near-surface radiances.  WALRUS casts have 3-digit numbers where the first digit indicates a group of casts close in time, and the 3rd digit indicates an individual member of the group.

Each day, a separate series of cast numbers was used for each type of cast.  That is, each day might have casts HP1, HP2, etc., W100, W200, etc. 

 

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
8-27-03 W100 10:19 54.574' 57.256' 31 NA Experiment to test optical effect of bubbles from propeller thrust                    
8-27-03

W101

10:22 54.574' 57.256' 31 NA                      
8-27-03 W102 10:25 54.574' 57.256' 31 NA                      
8-27-03 W103 10:26 54.574' 57.256' 31 NA                      
8-27-03 HP1 10:42 54.518' 57.192' ≈35 30          
8-27-03 HP2 10:58 54.336' 57.168' ≈35 1 Near-surface time series for Hβ dark                      
8-27-03 HP3 12:40 52.503' 58.804' ≈60 1 Near-surface time series for Hβ dark                      
8-27-03 HP4 13:00 52.472' 58.843' ≈60 55        
8-27-03 HP5 13:15 52.355' 59.033' ≈60 55        
8-27-03 HP6 13:31 52.294' 59.185' ≈60 1 Near-surface time series for Hβ dark                      
8-27-03 W200 13:45 52.242' 59.352' ≈60 NA Boat thrust during sample #4                    
8-27-03 W201 13:48 ? ? ≈60  NA Boat thrust during sample #6                    
8-27-03 W202 13:55 52.062' 59.459' ≈60 NA Boat thrust during sample #6                    
8-27-03 W203 13:59 52.079' 59.471' ≈60 NA Boat thrust during sample #7                    
8-28-03 HP1 11:31 53.354'

122

07.430'

≈85 83      
8-28-03 HP2 11:42 53.343'

122

07.453'

≈85 1 Near-surface for  Hβ and HS dark                    
8-28-03 HP3 14:23 42.558' 52.350' 74 1 Near-surface for  Hβ and HS dark                    
8-28-03 HP4 14:35 42.392' 52.418' 74 66      
8-29-03 HP1 10:40 45.636' 12200.817' >500 160      
8-29-03 HP2 10:58 45.678' 12200.988' >500 1 Near-surface for  Hβ and HS dark                      
8-29-03 HP3 11:32 46.512' 57.828' >500 10 Fixed depth for  Hβ and HS dark                      
8-29-03 HP4 12:10 46.406' 58.266' >500 200      
8-29-03 HP5 12:36 46.365' 58.447' >500 60        √
8-29-03 HP6 14:10       70 AC9 contaminated during part of cast *    
8-29-03 HP7 14:20       70 downcast only 
8-29-03 HP8 14:27       70 upcast of HP7      
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