Journal article

Ground-based observations of overshooting convection during the tropical warm pool-international cloud experiment

MEE Hassim, TP Lane, PT May

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES | American Meteorological Society | Published : 2014

Abstract

This study uses gridded radar data to investigate the properties of deep convective storms that penetrate the tropical tropopause layer (TTL) and overshoot the cold-point tropopause during the Tropical Warm Pool-International Cloud Experiment (TWP-ICE). Overshooting convection during the observed break period is relatively more intense and exhibits lesser diurnal variability than severe monsoonal storms in terms of mean overshooting area in the TTL (as covered by >20 dBZ echoes). However, ground-based radar has geometrical constraints and sampling gaps at high altitude that lead to biases in the final radar product. Using synthetic observations derived from model-based data, ground-based rad..

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University of Melbourne Researchers

Grants

Awarded by Australian Research Council's Future Fellowships


Awarded by Australian Research Council's Centre of Excellence


Funding Acknowledgements

Michael Whimpey (CAWCR) and Scott Collis (formerly CAWCR, now at Argonne National Laboratory) are gratefully acknowledged for providing the gridded C-POL data and radar geometry files, respectively. Harald Richter (CAWCR) is acknowledged for constructive comments on an earlier version of this manuscript. The work was funded in part by the Australian Research Council's Future Fellowships (FT0990892) and Centre of Excellence (CE110001028) schemes. The lead author also acknowledges the support of the Australian Postgraduate Award scheme when this study was undertaken. The Victorian Partnership for Advanced Computing (VPAC) provided high-performance computing facilities. Finally, the authors wish to thank the three anonymous reviewers for their comments that helped improve the paper.