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Open AccessArticle

Geospatial Analysis of Rain Fields and Associated Environmental Conditions for Cyclones Eline and Hudah

Department of Geography, University of Florida, Gainesville, FL 32611, USA
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Received: 30 December 2020 / Revised: 23 January 2021 / Accepted: 18 February 2021 / Published: 24 February 2021
Tropical cyclones (TCs) that landfall over Madagascar and Mozambique can cause flooding that endangers lives. To better understand how environmental conditions affect the rain fields of these TCs, this study utilized spatial metrics to analyze two storms taking similar paths two months apart. Using a geographic information system, rain rates of 1 mm/h were extracted from a satellite-based dataset and contoured to define the rain field edge. Average extent of rainfall was measured for each quadrant and asymmetry was calculated along with rain field area, dispersion, closure, and solidity. Environmental conditions and storm intensity were analyzed every six hours. Results indicate that although both TCs intensified prior to first interaction with land, stronger vertical wind shear experienced by Eline was associated with higher asymmetry and dispersion. Additionally, rain fields were less solid although the center was mostly enclosed by rain. Storm shape was altered as both storms tracked over Madagascar, with Hudah recovering more quickly. Moisture increased for both storms and shear decreased for Eline, allowing it to become more centered and solid, and grow larger. Relationships between intensity, land interaction, and rain field shape support the results of previous research and demonstrate the global utility of these metrics. View Full-Text
Keywords: GIS; spatial analysis; tropical cyclones; rain fields GIS; spatial analysis; tropical cyclones; rain fields
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MDPI and ACS Style

Matyas, C.J.; VanSchoick, S. Geospatial Analysis of Rain Fields and Associated Environmental Conditions for Cyclones Eline and Hudah. Geomatics 2021, 1, 92-113. https://0-doi-org.brum.beds.ac.uk/10.3390/geomatics1010008

AMA Style

Matyas CJ, VanSchoick S. Geospatial Analysis of Rain Fields and Associated Environmental Conditions for Cyclones Eline and Hudah. Geomatics. 2021; 1(1):92-113. https://0-doi-org.brum.beds.ac.uk/10.3390/geomatics1010008

Chicago/Turabian Style

Matyas, Corene J.; VanSchoick, Sarah. 2021. "Geospatial Analysis of Rain Fields and Associated Environmental Conditions for Cyclones Eline and Hudah" Geomatics 1, no. 1: 92-113. https://0-doi-org.brum.beds.ac.uk/10.3390/geomatics1010008

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