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Hyperspectral Coastal Ocean Dynamics Experiment (HyCODE)

Ocean Physics Laboratory

HyCODE Mooring Operations

Site Map Mooring Diagram
HyCODE Site Map OPL HyCODE Mooring Diagram
(Click for larger image)

The site of the HyCODE field experiment is the New Jersey shelf of the NYB and the MAB in 24 m water depth. We placed newly-developed optical and physical instruments at several depths on a mooring and a bottom tripod at 39o20.47N, 74o05.05W from 16 May to 15 September 2000. Most of the instruments were recovered and redeployed on 25 July 2000. A third deployment was conducted from 19 June through 6 August 2001. Physical and bio-optical instruments on the mooring include:

1) Wet Labs, Inc. ac-9s for absorption and attenuation at nine wavelengths (5, 11, and 20 m);
2) Biospherical Instruments, Inc. PAR sensors (QSP-200) for photosynthetically active radiation (5, 11, and 20 m);
3) Wet Labs, Inc. fluorometers and transmissometers (WETStars and C-stars) for chlorophyll-a concentration and beam attenuation at 660 nm, respectively (5 and 11 m);
4) Satlantic, Inc Minispecs for hyperspectral (3.3 nm resolution from 350-800 nm) upwelling radiance (2, 5, and 11 m) and downwelling irradiance (surface, 5, and 11 m);
5) Hobi Labs Hydroscat-6 for backscattering at six wavelengths and fluorescence at two wavelengths (5 m);
6) Sea-Bird Electronics, Inc. SEACATs and MICROCATS for temperature and salinity (5, 11, and 20 m);
7) Onset Computer Corp. Tidbits for temperature (0.5, 11, 14, 17, 20, 22, and 23 m);
8) Sea-Bird Electronics, Inc. temperature sensors (SBE-39; 1, 3, 8, and 21 m); and
9) Sea-Bird Electronics, Inc. pressure sensor at 21 m.
10) An uplooking RD Instruments, Inc. Acoustic Doppler Current Profiler (ADCP) was placed on a bottom tripod for currents binned every meter. The ADCP was not recovered on 25 July 2000; it remained in the water continuously between 16 May and 15 September 2000. A water level sensor was also mounted on the bottom tripod for wave height.

Sea-Bird Electronics, Inc. SBE 5T submersible pumps were also deployed at 5, 11, and 20 m for use with the WET Labs, Inc. ac-9 and WETStar fluorometers.

The fluorometers and transmissometers were sampled every minute at a four second period. The sampling rate for the SBE-39 temperature sensors and SEACAT and MICROCAT temperature and salinity sensors was once per minute. The Tidbit temperature sensors sampled once every five minutes. The sampling rate for the Hydroscat-6 was once per hour. The PAR was sampled eight times per hour. The Minispecs sampled once per hour between 6 am and 6 pm, EDT. Lastly, the sampling rate for the ac-9 was once per hour for 30 seconds. The ac-9 wavelengths are: 412, 440, 488, 510, 532, 555, 650, 676, and 715 nm.