EGU21-6316
https://doi.org/10.5194/egusphere-egu21-6316
EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Identification of Tropical Cyclones’ Critical Positions Associated with Extreme Precipitation Events in Central America

Hugo G. Hidalgo1,2, Eric J. Alfaro1,2,3, Franklin Hernández-Castro4,5, and Paula M. Pérez-Briceño1,6,7
Hugo G. Hidalgo et al.
  • 1Center for Geophysical Research, University of Costa Rica, Pedro, Costa Rica
  • 2School of Physics, University of Costa Rica, Pedro, Costa Rica
  • 3Center for Research in Marine Sciences and Limnology, University of Costa Rica, Pedro, Costa Rica
  • 4School of Engineering in Industrial Design, Instituto Tecnológico de Costa Rica, Cartago 30101, Costa Rica
  • 5Horchschule für Gestaltung Schwäbisch Gmünd, Schwäbisch Gmünd D-73525, Germany
  • 6School of Geography, University of Costa Rica, San Jose 11501, Costa Rica
  • 7Hydrological Engineering, Chorotega Regional Headquarters, National University of Costa Rica, Liberia 50101, Costa Rica

Tropical cyclones are one of the most important causes of disasters in Central America. Using historical (1970–2010) tracks of cyclones in the Caribbean and Pacific basin, we identify critical path locations where these low-pressure systems cause the highest number of floods in a set of 88 precipitation stations in the region. Results show that tropical cyclones from the Caribbean and Pacific basin produce a large number of indirect impacts on the Pacific slope of the Central American isthmus. Although the direct impact of a tropical cyclone usually results in devastation in the affected region, the indirect effects are more common and sometimes equally severe. In fact, the storm does not need to be an intense hurricane to cause considerable impacts and damage. The location of even a lower intensity storm in critical positions of the oceanic basin can result in destructive indirect impacts in Central America. The identification of critical positions can be used for emergency agencies in the region to issue alerts of possible flooding and catastrophic events.

How to cite: Hidalgo, H. G., Alfaro, E. J., Hernández-Castro, F., and Pérez-Briceño, P. M.: Identification of Tropical Cyclones’ Critical Positions Associated with Extreme Precipitation Events in Central America, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-6316, https://doi.org/10.5194/egusphere-egu21-6316, 2021.

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