KISTI 2014

A summer heavy rain event (locally about 250 mm/day) over South Korea from the GRIMs high resolution model simulation is analyzed. 3D structure of moisture flux amplitude (blue) is displayed together with 2D pattern of precipitation rate (yellow to red) during 5 days. Vertical motion (w) is also diplayed (purple). he heavy rain occurs due to strong moisture transport from the south with the development of synoptic low pressure system.

The particulate matters (PM2.5) occurring over East Asia have been simulated for 5-days (April 24th~April 29th 2010) using the WRF-Chem model, and long-range transport process was visualized using the VAPOR program. The model variables used for making the plot are PM2.5, U, V, and W. The atmospheric concentration of PM2.5 is shown as 3-dimensional rendering technique (DVR) with red color scales proportional to its concentration. The wind vectors are given by barbs at altitudes of 1500m (red), 3000m (green), 5000m (yellow).

This video shows the three-dimensional structure of developing mesoscale convective cells (MCSs) simulated by the high-resolution (DX=1.5 km) UM-WRF model for a heavy rainfall case occurred over the Seoul meteropolitan area in 27th July 2011. Three modelled phases (liquid clouds, ice clouds, and total clouds) of water species were calculated, which were visualized simultaneously using the direct volume rendering (DVR) method. Wind vectors at 4 different levels (1000m, 3000m, 5000m, and 7000m) were also added to represent temporal variations of atmospheric flows.

Power plant plumes' dispersion simulated by the WRF-CHEM LES mode is visualized using VAPOR.  The modelled CO2 concentration is displayed with the proportional to simulated concentration.  Wind vectors (Barbs) at a low-level (300m a.g.l.) are plotted simultaneously with a length scale proportional to wind speed.  The forward trajectories of air masses at the emission point (seed at every 200m vertically) were calculated using the built-in tool of the VAPOR package, and visualized using color scales proportional to the altitude of air mass (Flow).  In order to show turbulence structure in th

This picture is result that projection of ocean changes in the Northwestern Pacific ocean due to global warming. This picture used the regional version of the MOM (Modular Ocean Model) version4 Global Ocean Circulation model that does not use the Boussinesq approximation, in order to directly consider the steric effect. In the case of A1B, the water temperature and was incereased by approximately 3°C from present to 2100 prespectively.

This animation is a result of simulation the WRF(Weather Research Forecasting) on the Yellow sea of Korea in March 2007. The purpose of this result is find out freak wave due to changing sea level pressure. So It’s including Air pressure, Wind, Cloud around Yellow sea. Specially, Air pressure was marked only near coastal of Yellow sea.

This picture is a result of visualised 3D simulation of 12th and 13th typhoons, Nakri and Halong, by WRF(Weather Research and Forecasting) Model. The first pictures of clouds were created as an application of DVR technique after creating CLOUD parameter utilizing QICE and QCLOUD parameters. The movement of cloud cells shows vorticities of upper an lower layer are opposed against each other. The latter video is represented to provide even more detailed information about the two typhoons. Of the video, through Barb, wind is illustrated as vectors showing U and V parameters.