In principe zijn controle en oper hetzelfde. Zelfde init, zelfde resolutie etc. Er treden soms kleine verschillen op. De controle zal dan geleidelijk ook verdwijnen op termijn.
" The HRES forecast and the unperturbed ENS control forecast are meteorologically equivalent and equally skilful on average. They have the same physical and dynamical representation of the atmosphere and use the same parameterisation of sub-gridscale effects. However, they can diverge on a day-to-day basis due to small technical differences and the chaotic nature of the atmosphere. The HRES will continue for the time being for ease of use by customers and users. "