초록 ▼

(1) 정밀격자 해양기상 정보생산, 해양 예보모델 자료입력 운영체제 구축 및 운영
○ 해양모델 입력정보 생산을 위한 정밀격자 해양기상모델 구축 (UM-WRF)
○ 전지구 해양순환 실험예측 시스템 개발
○ 인공위성 해양관측 정보 활용 (준실시간 고해상도 해수면온도 생산시스템 구축)
(2) 정밀격자 연안 해상상태 (파랑, 조석, 해일 등) 예측체제 구축 및 운영
○ 파랑예측시스템 구축
○ 정밀국지 풍성류/해일예보 지원체제 구축
○ 정밀국지 조석·조류 예보지원체제 구축 및 시범운영
(3) 3차원

(1) 정밀격자 해양기상 정보생산, 해양 예보모델 자료입력 운영체제 구축 및 운영
○ 해양모델 입력정보 생산을 위한 정밀격자 해양기상모델 구축 (UM-WRF)
○ 전지구 해양순환 실험예측 시스템 개발
○ 인공위성 해양관측 정보 활용 (준실시간 고해상도 해수면온도 생산시스템 구축)
(2) 정밀격자 연안 해상상태 (파랑, 조석, 해일 등) 예측체제 구축 및 운영
○ 파랑예측시스템 구축
○ 정밀국지 풍성류/해일예보 지원체제 구축
○ 정밀국지 조석·조류 예보지원체제 구축 및 시범운영
(3) 3차원 해양 순환 예측시스템 구축 및 운영
○ 동해(MOM3) 광역 3차원 해양순환 모델 구축
○ 황/동중국해(ROMS) 광역 3차원 해양순환 모델 구축
(4) 운용해양시스템 활용화 시스템 구축 및 운영
○ 활용시스템 구축
○ 수색구조 지원 시스템 구축
○ 유류오염 이동확산 예측 시스템 구축
○ 부유물질 이동확산 예측시스템 구축
○ 한국형 PORTS 시스템(I-MAPS) 구축
(5) GIS 기반 운용해양 정보시스템 구축 및 운영
○ 전문가용 운용해양 정보서비스 구축
○ 관측자료 수집 및 검증 체계 구축
○ Web-GIS 기반 운용해양 정보시스템 구축
○ 해양수치모델 평가시스템 개발
○ 의사결정 지원시스템 구축

Abstract ▼

Ⅳ. Results
○ Development of high-resolution ocean weather forecasting system and ocean model input data production systems
- Regional real-time numerical atmospheric prediction system was established to provide a precise input data for operational ocean models using Weather Research and Foreca

Ⅳ. Results
○ Development of high-resolution ocean weather forecasting system and ocean model input data production systems
- Regional real-time numerical atmospheric prediction system was established to provide a precise input data for operational ocean models using Weather Research and Forecasting (WRF) model. The regional model domain and horizontal resolution were optimized, and stable operations were secured. In addition, hindcast data were produced by the WRF model based on historical data during the period from January 2001 to December 2012.
- The development of the operational atmospheric prediction system using UM data (UM-WRF model) was enable to improvement of data production system of operational ocean models. We presented an objective prediction performance of UM-WRF model.
- A script to extract near-real time data from the NCODA+HYCOM model for KOOS system
- For the tidal constituents, we investigated four major global products and found that the TPXO7.2 is the most appropriate candidate for the regional ocean circulation and tide coupled model since it provides tidal current constituents as well as the tidal constituents of sea level.
- To develop an experimental global ocean circulation prediction system, which can provide the initial and lateral boundary conditions for the operational regional circulation models, two kinds of modelling system based on the HYCOM has been set up and tested. One is the nested modelling system (GLB1.5L30-WP0.25L30) linking a quarter degree Western Pacific ocean circulation model (WP0.25L30) with a 1.5 degree low resolution global ocean circulation model (GLB1.5L30). The other one is the global ocean circulation modelling system (GLB0.25L30) configured with 0.25 degree horizontal resolution with 30 hybrid vertical layers.
- The GLB0.25L30 model has been spun up for 10 years since it needs a lot of computational resources. It is encouraging that the model has been successfully set up and tested. Since the efforts and resources to improve both systems are limited, we will concentrate on the GLB0.2530L model and it will be fully tested and be the backbone of the future developing system which can replace the GLB1.5L30 of the operational experimental global ocean prediction system.
- A merging technique of observed data with satellite NIR (Near Infra-Red) sensors was developed to calculate high-resolution SST and the results showed 0.7˚C difference at most.

○ Development of high-resolution coastal sea state prediction systems
- For 72 hours wave forecasting system, three wave models (WAM, WW3, SWAN) were established. Two atmospheric models used for wind forcing, typhoon parameter model and WRF model for typhoon period and WRF model for the non-typhoon period. This wave forecasting system has been proved the prediction capability on wave height, period and direction throughout the hindcast of typhoon events and the skill assessment.
- Storm surge prediction system in KOOS is 2D depth averaged hydrodynamic model incorporated with two atmospheric models, typhoon parameter model for typhoon period and WRF for the non-typhoon period. This surge system has been proved the prediction capability on storm surge height and peak arrival time throughout the hindcast of typhoon events.
- For high-resolution (horizontal resolution ~300m) tide prediction system MOHID and FVCOM were setup to calculate tidal information around the Korean Peninsula for the practical purpose.
○ Development of 3D regional ocean circulation forecasting systems
- East Sea 3D ocean circulation model (MOM3)
: Based on GFDL (Geophysical Fluid Dynamics Laboratory) MOM3 (Modular Ocean Model Version 3), East Sea Regional Ocean Circulation Model (ES_MOM3) has been set up and 3 dimensional variation method was applied to assimilate ocean observation data of temperature profiles, satellite-borne Sea Surface Temperature and Sea Surface Height Anomaly to the ES_MOM3. By ES_MOM3, we has been conducting ocean data assimilation and ocean forecasting with 1 week leading time every week since November, 2011. Also, automatic operating system has been designed based on Linux Operating system, which may support operational system technically. The ES_MOM3 resolves the separation of the East Sea Warm Current, meso-scale eddies including the Ulleung Warm Eddy and Dok Cold eddy. Also, temperature profiles from the serial observation program by NFRDI has been assimilated to the ES_MOM3 since August, 2012, which significantly improves the East Sea forecasting.
- Yellow/East China Sea 3D circulation model (ROMS)
: A 3D circulation model based on ROMS was established for Yellow and East China sea to predict ocean currents, temperature, salinity and sea surface height. This real-time forecasting system has been operated since July 2010 and it forecasts the next 72 hours ocean circulation. SST and temperature profiles were assimilated into the ocean circulation forecast system using the ensemble Kalman filter. The model results showed qualitatively good agreement with observations.
○ Development of application systems
- Operational Search and Rescue Modeling System and Its Applications
: An operational search and rescue (SAR) modeling system in KOOS employs a Monte Carlo ensemble technique to estimate the location of the drifting objects and uses the forcing inputs, wind and currents obtained from KOOS. Several drifting buoy experiments have been carried out to evaluate the performance of operational SAR model and results showed reasonable agreement.
- Oil Spill prediction system
: An oil spill prediction system based on MOHID has been setup and tested. For validation of this oil spill system, the Hebei Spirit accident in 2007 was successfully simulated using currents and wind field obtained from KOOS.
- Suspended sediment transport systems
: Basic sediment properties measurement efforts are firstly considered and local and regional scale suspended sediment transport prediction systems were established and tested.
- Integrated-MAritime Prediction Systems (I-MAPS)
: An Integrated-MAritime Prediction Systems based on ROMS were established at 6 harbors around the Korea Peninsula with some real-time observation system
- Development of 3-D numerical model to understand of tidal, sub-tidal current and its circulation characteristics in the Sumjin-Kwangyang area, only preserved estuarine environment in South Korea

○ Establishment of the Operational Ocean Data Management System based on GIS Technology
- The operational ocean data management system of KOOS was designed and established to collect new oceanographic data as the input data of ocean models and provide the forecasting information to the data users.
- The file service systems of KOOS were set up to distribute model output files to ocean experts using OPeNDAP (Open-source Project for a Network Data Access Protocol) and LAS (Live Access Server).
- KOOS FTP and KOOS community were established and started their services to share the ocean data and exchange their opinions among the research participants.
- Web-GIS visualization program was established for KOOS and was applied into decision supporting system.
- Skill assessment system for KOOS was established to improve model performance on various predicted variables (wind, wave, tide, current, salinity, temperature).