absence of extensive data

In the absence of extensive data, early models estimate mixing in the order of 10E-04. The dyapicnal diffusivities meassured are in the order of 10E-03, one order of magnitude larger.

However, these measurements relied on theoretical constructs to link small-scale temperature and velocity fluctuations to mixing, and were thus not immune from skepticism.

1. What is the purpose of the observations? Do you wish to test hypotheses or describe processes?
2. What accuracy is required of the observation?
3. What temporal and spatial resolution is required? What is the duration of measurements?