An identical twin
experiment starting from poor initial condition on 1/1/87, shows that the
assimilation scheme is able to recover the “true” SWE effectively. This is to be expected because the observation used is the total snow
water equivalent.
Snow depth is
overestimated initially due to a poor estimate of the snow density by the
model. It steadily converges towards the truth by the end of February 1987
(Fig. 7).
Snow temperature is well estimated in both the assimilationand forecast simulations .