Contributions to Global Ocean Observations
49
Figure 4.2. Schamatic of an early WHOI Buoy Group surface mooring from Richardson et al. (1963).
In conjunction with two manufacturers, the acoustically triggered anchor release was
developed, making possible safer surface-mooring recovery and enabling subsurface
moorings, which avoid wave forcing and its impacts on instruments. The original
Richardson current meter used a Savonius-rotor speed sensor, compass and vane
for direction, and, because low-power electronics were not available, an ingenious
49
Figure 4.2. Schamatic of an early WHOI Buoy Group surface mooring from Richardson et al. (1963).
In conjunction with two manufacturers, the acoustically triggered anchor release was
developed, making possible safer surface-mooring recovery and enabling subsurface
moorings, which avoid wave forcing and its impacts on instruments. The original
Richardson current meter used a Savonius-rotor speed sensor, compass and vane
for direction, and, because low-power electronics were not available, an ingenious