What is the (average) velocity of ocean currents? Does anybody know where to find statistical (average, standard deviation) data on velocities of ocean currents, such as


Equatorial countercurrent North of Madagascar
Agulhas current
East Australia current
Gulf stream East of Florida is about $2\,\frac{m}{s}$ (the only figure I have found)
South equatorial current North of South America
Kuroshio current
Antarctic circumpolar current (Strait of Magellan)
North equatorial (Philippines)
etc.


I have found time series data by NOAA (link), but no "postprocessed" values. Is such data available?
This is not meant to be a comprehensive answer:

Sometimes the easiest way to calculate the velocity of an ocean current is to take the published transport of the current and divide by the total depth of the current. 

For instance, for the Agulhas Current, you can take Figure 2 from Casal et al. (2009) (below) and extract the velocities based on the depth of each area. Also in their Figure 6, there are several vertical sections of velocity across the current.    

Also, you can obtain vertical sections of velocity for the same current (Agulhas) in earlier publications: Bryden et al. 2005 (Figure 8 and 9). Or in newer publications: Beal &amp; Elipot (2016).


The main issue is that you will need to do a bit of digging around for each of the currents you list.