N-S and E-W components of the current (averaged by cruise cycle) as measured by a shipboard Acoustic Doppler Current Profiler (ADCP) aboard the CCE LTER process cruise in the California Current region, 2007.

Underway measurements by the ADCP are made (about every 15 mins) on cruises to determine how fast water is moving across an entire water column, then averaged by cruise cycle. The ADCP measures the absolute speed of water currents with sound waves (Doppler effect) at multiple depths within the water column, and profile data are available immediately. For these data, the N-S and E-W components of the current were averaged by cycle.