The Atmospheric River-CONNected objECT (AR-CONNECT) algorithm applied to the National Aeronautics and Space Administration (NASA) Modern-Era Retrospective Analysis for Research and Applications, Version 2 (MERRA V2) - 1983 to 2016
This collection contains the lifecycles of global atmospheric river (AR) objects. This data was produced by isolating regions of enhanced IVT transport events by applying the Atmospheric River-CONNected objECT (AR-CONNECT) algorithm. AR-CONNECT is a four-dimensional (4D) object-oriented algorithm, adapted from the CONNECT algorithm developed by a team of researchers from the University of California, Irvine [Sellars et al., 2013, 2015, 2017]. The algorithm uses a seeded region growing segmentation technique to segment AR lifecycles according to their high-intensity cores. AR-CONNECT determines the lifecycles of an AR by using a flood-filling algorithm to group discrete AR timeslices where they are contiguous over time and space. Each object has a unique ID and a set of selected characteristics.
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