Maturity Level Definitions

Beta:                           Early release products for users to gain familiarity with data formats and parameters.

Provisional:               Limited comparisons with independent sources have been made and obvious artifacts fixed.

Validated Stage 1:   Uncertainties are estimated from independent measurements at selected locations and times.

Validated Stage 2:   Uncertainties are estimated from more widely distributed independent measurements.

Validated Stage 3:   Uncertainties are estimated from independent measurements representing global conditions.