TempestExtremes v2.1: a community framework for feature detection, tracking, and analysis in large datasets

Abstract. TempestExtremes (TE) is a multifaceted framework for feature detection, tracking, and scientific analysis of regional or global Earth system datasets on either rectilinear unstructured/native grids. Version 2.1 the TE now provides extensive support examining both nodal (i.e., pointwise) areal features, including tropical extratropical cyclones, monsoonal lows depressions, atmospheric rivers, blocking, precipitation clusters, heat waves. Available operations include thresholding, calculations quantities related to features such as accumulated cyclone energy azimuthal wind profiles, filtering data based characteristics stereographic compositing. This paper describes core algorithms (kernels) that have been added since version 1.0, editing pointwise trajectory files, composition fields around generation masks via thresholding tracking in time. Several examples are provided how these kernels can be combined produce composite evaluating understanding common their underlying processes. These analyzing fraction from compositing meteorological calculating fractional contribution poleward vapor transport building climatology blocks.