High-Resolution Prediction for the Amount of Airborne Sea Salt by Multi-Scale Weather Simulation

抄録

A new methodology to calculate and visualize the amount of airborne sea salt with a 100 m mesh resolution in high definition has been proposed in this study. A transport calculation module for airborne sea salt is implemented to the atmospheric component of the multi-scale atmosphere–ocean coupled model. The computational fluid dynamics model (NuWiCC-ST) results that can calculate the generation and transport of sea salt particles are incorporated to the transport calculation. The coupled methodology has been applied to create a corrosion environment map for Choshi City. The reliability of the developed method was confirmed by comparing airborne sea salt data measured using the dry gauze method with the calculated data.

 

This Paper was Originally Published in Japanese in ZAIRYO-TO-KANKYO 69 (2020) 169–174.

Fig. 4 A 100 m-resolution map of seasalt concentration in the lowest layer (z = 37.5 m). Mean values for 5 days (July 1–6, 2017) are shaded in a rainbow color. The contour shows the topography used for the calculation.