Impact of the Initial Conditions from an Atmospheric Model on a Wave Forecast System
SCIE
SCOPUS
Cited 1 time in
WEB OF SCIENCE
Cited 0 time in
Scopus
-
Title
- Impact of the Initial Conditions from an Atmospheric Model on a Wave Forecast System
-
Author(s)
- Choi, Jin-Yong; Heo, Ki-Young
- KIOST Author(s)
- Choi, Jin Yong(최진용); Heo, Ki Young(허기영)
-
Alternative Author(s)
- 최진용; 허기영
-
Publication Year
- 2019-08
-
Abstract
- This study aimed to improve the accuracy of dangerous wave prediction, using the example of the Korean east coast. Generally, the accuracy of wave prediction depends on the accuracy of weather prediction. Therefore, we attempted to improve the performance of a weather model by improving its initial conditions. In this study, two initial weather conditions obtained from an atmospheric weather model were employed, to simulate high, swell-like waves, in the East Sea. In the first simulation, the Weather Research and Forecasting (WRF) model was run for 72 h, from a cold-start, cycling a 3D-Var data assimilation through, every 3 h, from the start time to +6 h (a "cold-start" run). In the second simulation, the WRF model was run for 78 h from cold-start, cycling the 3D-Var data assimilation every 3 h from -6 h to +6 h, in a simulation called a "hot-start" run. The WRF model was initialized using boundary conditions from the National Centers for Environmental Prediction (NCEP) Global Forecast System (GFS), and SWAN 41.10 was used for the wave model. Based on observational data collected over six months, the error in the "hot-start" prediction run was reduced by approximately 5%, in comparison with the "cold start" run.
-
ISSN
- 0749-0208
-
URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/749
-
DOI
- 10.2112/SI91-027.1
-
Bibliographic Citation
- JOURNAL OF COASTAL RESEARCH, v.91, no.sp1, pp.131 - 135, 2019
-
Publisher
- COASTAL EDUCATION & RESEARCH FOUNDATION
-
Keywords
- Wave forecasting; swell-like waves; East Sea
-
Type
- Article
-
Language
- English
-
Document Type
- Article; Proceedings Paper
- Files in This Item:
-
There are no files associated with this item.
Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.