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Entry ID KPDC_2018_0003
Entry Title Numerical simulation data of strong wind events at Jang Bogo Station, Antarctica
Abstract Jang Bogo Station is located in Terra Nova Bay over the East Antarctica, which is often affected by individual storms moving along nearby storm tracks and a katabatic flow from the continental interior towards the coast. A numerical simulation for two strong wind events of maximum instantaneous wind speed (41.17 m/s) and daily mean wind speed (23.92 m/s) at Jangbogo station are conducted using the polar-optimized version of Weather Research and Forecasting model (Polar WRF). Verifying model results from 3 km grid resolution simulation against AWS observation at Jangbogo station, the case of maximum instantaneous wind speed is relatively simulated well with high skill in wind with a bias of -3.3 m/s and standard deviation of 5.4 m/s. The case of maximum daily mean wind speed showed comparatively lower accuracy for the simulation of wind speed with a bias of -7.0 m/s and standard deviation of 8.6 m/s. From the analysis, it is revealed that the each case has different origins for strong wind. The highest maximum instantaneous wind case is caused by the approach of the strong synoptic low pressure system moving toward Terra Nova Bay from North and the other daily wind maximum speed case is mainly caused by the katabatic flow from the interiors of Terra Nova Bay towards the coast. Our evaluation suggests that the Polar WRF can be used as a useful dynamic downscaling tool for the simulation and investigation of high wind events at Jangbogo station. However, additional efforts in utilizing the high resolution terrain is required to reduce the simulation error of high wind mainly caused by katabatic flow, which is received a lot of influence of the surrounding terrain.
Purpose A Numerical Simulation Study of Strong Wind Events at Jang Bogo Station, Antarctica
Science Keyword
  • Atmosphere > Atmospheric Winds > Convection
ISO Topic Category
  • CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Investigator
  • Hataek Kwon (Email: h.kwon@kopri.re.kr)
  • Shin-Woo Kim (Email: sinukim@kopri.re.kr)
  • Solji Lee (Email: ssoroji@kopri.re.kr)
  • Sang-Jong Park (Email: sangjong@kopri.re.kr)
  • Taejin Choi (Email: ctjin@kopri.re.kr)
  • Jee-Hoon Jeong (Email: jjeehoon@chonnam.ac.kr)
  • Seong-Joong Kim (Email: seongjkim@kopri.re.kr)
  • Baek-Min Kim (Email: bmkim@kopri.re.kr)
Instrument
  • Polar WRF
Platform
    Location
    • Jang Bogo Station, Terra Nova Bay, Antarctica
    Spatial Coverage
    • (Lat: -74.6240, Lon: 164.2288)
    Temporal Coverage
    • 2010-09-05 ~ 2010-09-12
    Project
      Create/Update Date Thursday, January 18, 2018
      Author Hataek Kwon (Email: h.kwon@kopri.re.kr)
      Data Center Korea Polar Data Center (KPDC)
      Contact Point kpdc@kopri.re.kr, more information

      Korea Polar Data Center

      Korea Polar Research Institute

      26, Songdomirae-ro, Yeonsu-gu, Incheon, Korea

      kpdc@kopri.re.kr