Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

WRF Evaluation During Storm Ophelia Using Remote Sensing and In-situ Measurements at Mace Head, Ireland

Version 1 : Received: 3 September 2021 / Approved: 6 September 2021 / Online: 6 September 2021 (12:57:23 CEST)

How to cite: Noone, C.; Preißler, J. WRF Evaluation During Storm Ophelia Using Remote Sensing and In-situ Measurements at Mace Head, Ireland. Preprints 2021, 2021090093 (doi: 10.20944/preprints202109.0093.v1). Noone, C.; Preißler, J. WRF Evaluation During Storm Ophelia Using Remote Sensing and In-situ Measurements at Mace Head, Ireland. Preprints 2021, 2021090093 (doi: 10.20944/preprints202109.0093.v1).

Abstract

Storm Ophelia made landfall over Ireland as an extra-tropical storm on the morning of the 16th of October 2017. The storm caused major power outages, lifted roofs, caused coastal flooding in Ireland, and resulted in the loss of three lives. A model’s capability to forecast extreme weather events such as Storm Ophelia is of utmost importance and now with a changing climate, it becomes more important to improve and enhance model forecasting capability. The Weather Research and Forecasting (WRF) model V3.9 has been configured for the Irish domain and this study presents a preliminary evaluation of the Model during Storm Ophelia. Simulated wind speed and direction were compared with hourly remote sensing (lidar) and in-situ (wind speed and wind direction at 10m) observations at the coastal site of Mace Head Atmospheric Research Station on the West coast of Ireland (53.33◦ N, 9.90 49 ◦ W). The model simulation has generally small biases in the simulated wind speed and wind direction during this case study. The model also realistically simulated the magnitude and geographical distribution of the wind speed and wind direction observed during Ophelia.

Keywords

WRF; Modelling; Climate; Climate Extremes; LIDAR

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