Code for simultaneous inference of sea ice state and surface emissivity model using machine learning and data assimilation ...

• Main Author: Geer, Alan
• Format: Software
• Language: unknown
• Published: Zenodo 2023
• Subjects: Sea ice
• Online Access: https://dx.doi.org/10.5281/zenodo.10013541; https://zenodo.org/doi/10.5281/zenodo.10013541

This python code supports the draft manuscript "Simultaneous inference of sea ice state and surface emissivity model using machine learning and data assimilation" which describes a way to infer the daily maps of the sea ice concentration and empirical properties of the sea ice (relating to its snow cover and its physical properties, such as air inclusions) along with the creation of a new empirical model for the sea ice surface emissivity. This is done using knowledge of the atmosphere state, skin temperature and ocean water emissivity from the European Centre for Medium-range Weather Forecasts (ECMWF) weather forecasting model and the observed radiances at microwave frequencies from the Advanced Microwave Scanning Radiometer 2 (AMSR2). The inverse modelling and state estimation is achieved by combining empirical machine learning elements in a Bayesian-inspired network along with a number of physical components. The work also introduces the idea of an "empirical state", in this case describing the aspects of ...