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12 August 2003

Autonomous Ocean Sampling Network

Vehicles, vessels, and other research platforms
used in the Monterey Bay 2003 experiment

Platform
and organization

Specifications
and data collected

Photo or 
plot of data
(for satellites)

AUVS and Gliders

Slocum gliders (12 deployed)

(Woods Hole Oceanographic Institution)

Length: ~200 cm
Weight: 30 kg
Max depth: 200m
Speed: 0.5 knots
Duration: 20 days
Data collected: depth,  temperature, salinity, particulates, chlorophyll, light intensity

 assets_whoi_glider.jpg (336136 bytes)

Spray gliders  
(5 deployed)

(Scripps Institution of Oceanography)

Length: ~200 cm
Weight: 48 kg
Max depth: 1500 m
Speed: 0.6 knots
Duration: 150 days
Data collected: depth,  temperature, salinity, particulates, chlorophyll

assets_sio_glider.jpg (218393 bytes) 

Dorado AUV

(Monterey Bay Aquarium Research Institute)
Length: 425 cm
Weight:
500 kg
Max depth:
4500 m
Speed: 3 knots
Duration: 24 hrs
Data collected: depth,  temperature, salinity, nitrate, chlorophyll, bioluminescence, dissolved oxygen, subsurface currents
assets_dorado.jpg (479480 bytes)

Remus AUV (2)

(Cal Poly San Luis Obispo,
Naval Postgraduate School)

Length: 160 cm
Weight:
37 kg
Max depth:
1000 m
Speed:
3+ knots
Duration
: 10 hrs
Data collected: depth, salinity, temperature, chlorophyll, particulates,
bioluminescence, subsurface currents

  assets_cpslo_remus.jpg (264417 bytes)

Aries UUV

(Naval Postgraduate School)
Length: 300 cm
Weight:
220 kg
Max depth:
100 m
Speed:
1 knot
Duration:
4 hrs
Data collected:
Used to transfer data from sea-bottom current meter (ADCP)  to surface
assets_nps_aries.jpg (151675 bytes)

Research Vessels

R/V Point Sur

(Moss Landing Marine Laboratory, UNOLS)
Length: 41 m
Cruise speed: 11 kt
Data collected:
CTD rosette* -
depth, salinity, temperature, chlorophyll, particulates, dissolved oxygen
Towfish** - depth, salinity, temperature, chlorophyll, particulates
ptsur.jpg (11763 bytes)
R/V John Martin

(Moss Landing Marine Laboratories)
Length: 17 m
Max speed:
20 knots
Role:
Launch and recovery of gliders
jhmartin.jpg (34160 bytes)
R/V Shana Rae

(Private research vessel)
Length: 16 m
Max speed:
9 knots
Data collected:
CTD rosette*, towfish**, drifter and glider deployment, and other tasks as needed.
ShanaraeBig.jpg (10831 bytes)
R/V Zephyr

(Monterey Bay Aquarium Research Institute)
Length: 26 m
Max Speed:
12 knots
Role:
Launch and recovery of Dorado AUV
zephyrharbor-9x6_small3.jpg (9039 bytes)

Satellites

AVHRR

(Advanced Very High Resolution Radiometer)
Type: geostationary weather satellite
Coverage:
 Eastern Pacific Ocean
Data collected:
Sea surface temperature
GOES West Type: geostationary weather satellite
Coverage: 
E. Pacific/Western US
Data collected:
Sea surface temperature and color
SeaWIFS Type: geostationary sea color satellite
Coverage: 
E. Pacific/Western US
( Monterey Bay detail)
Data collected:
Sea surface temperature,  color, and chlorophyll
QuickSCAT Type: polar-orbit satellite
Coverage:
global
Data collected:
Wind speed/direction
quickscat.jpg (494188 bytes)

Other platforms and instruments

CODAR array

(Naval Postgraduate School)
Coverage: Entire Monterey Bay
Instrument used:

4 high-frequency doppler radar stations
Data collected:
Surface currents
nma_200322521.gif (30344 bytes)
Oceanographic moorings M1 & M2 

(Monterey Bay Aquarium Research Institute)
Coverage: Point measurements in upper water column
10 and 25 mi off Moss Landing
Data collected:

temperature, salinity, particulates, chlorophyll, nitrate, currents, carbon dioxide, wind, solar radiation
m1_close_400.jpg (78008 bytes)
Drifters

(Monterey Bay Aquarium Research Institute)
Coverage: Path followed by surface currents
Data collected:

temperature, salinity, chlorophyll, CO2
drifter3_sml.jpg (11079 bytes)
MBARI vertical profiler

(Monterey Bay Aquarium Research Institute)
Coverage: Point measurements in upper water column
Data collected:
depth, salinity, temperature,  chlorophyll, particulates, nitrate
mvp3.jpg (16756 bytes)
Sea-bottom ADCP - Acoustic doppler current profiler

(Naval Postgraduate School)
Coverage: Point measurement in S. Monterey Bay
Data collected:

Surface and subsurface currents
pod_modem_mvp_ondeck.jpg (12577 bytes)
Twin otter aircraft

(
Naval Postgraduate School, UNOLS)
Coverage: Ano Nuevo to Point Sur
Data collected:
Surface water temperature, wave height, air temperature, wind strength and direction, humidity
navajoa.jpg (14265 bytes)

*A CTD rosette is a cylindrical frame holding a group of plastic water-sampling tubes. Attached to this frame are instruments for measuring water temperature and conductivity (salinity) at various depths. Also attached to the rosette are instruments for measuring parameters such as chlorophyll, nutrients, and particulate matter in the water. As the frame is lowered over the side of a ship, water samples are taken automatically at various depths. Then the frame is raised to the surface again. 

ctd-4f_low.jpg (60376 bytes)
**A towfish is a underwater glider that is towed behind a ship, rising and falling as it goes. In addition to measuring temperature, pressure, and depth, additional instruments attached to the towfish can measure parameters such as chlorophyll, nutrients, bioluminescent organisms, and particulate matter in the water. Sometimes a hose is attached to the towfish, which allows water to be pumped back to the ship for additional analysis.