S3RI Seminar - Understanding the Arctic Sea Ice Melting via Functional Data Analysis, Dr Sourish Das (Chennai Mathematical Institute) Seminar

Event details

In the edge of the digital era, we can record a curve or a surface as data. Such data is popularly known as 'functional data'. Here each sample is a function. The functions are typically indexed by time or space, or both. In this talk, we consider the 'satellite remote sensing data' as functional data, and we study daily measurement of sea ice extent of each year as a smooth continuous function of time. I will explain the basis expansion approach to the functional data. In this study, we have adopted the Fourier basis expansion and Gaussian process prior approach. We will present the velocity and acceleration approach to understanding how fast the Arctic sea ice melting situation is worsening!