Combination of UV Irradiance from TOMS-OMI and UVMRP Ground Observations: A New Ensemble Method to Estimate Covariance and Correlation Region in Data Fusion

Abstract:

Surface ultraviolet (UV) observations can be obtained from satellite or ground observations. This study uses data fusion to combine the advantages from both sources of observations, aiming at achieving a better estimate of surface UV. In this study, new mathematical methods and algorithms were developed to estimate the covariance and correlation region, which are the most important components in data fusion. These ensemble based methods are generic and can be applied to other fields for data fusion/assimilation.