Reanalysis and sensitivity experiments using a multi-scale data assimilation system during a field campaign in the California current system

A multi-scale data assimilation  (DA) system for a high resolution oceanic model has been developed in support of the Surface Water and Ocean Topography (SWOT) satellite mission. Using this system, a set of forecast experiments was performed for the SWOT pre-launch field campaign that took place in the California Current System from September through December, 2019:  1) EXP_NODA, a free run without DA; 2) EXP_Routine, a DA run with the assimilation of observations that are routinely available from a variety of observing networks; and 3) EXP_Cal, a DA run with the assimilation of observations that are routinely available and observations from the field campaign.