• Title/Summary/Keyword: Tide Prediction

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Red Tide Prediction in the Korean Coastal Areas by RS and GIS

  • Yoon, Hong-Joo
    • Proceedings of the KSRS Conference
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    • v.1
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    • pp.332-335
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    • 2006
  • Red tide(harmful algae) in the Korean Coastal Waters has a given a great damage to the fishery every year. However, the aim of our study understands the influence of meteorological factors (air and water temperature, precipitation, sunshine, solar radiation, winds) relating to the mechanism of red tide occurrence and monitors red tide by satellite remote sensing, and analyzes the potential area for red tide occurrence by GIS. The meteorological factors have directly influenced on red tide formation. Thus, We want to predict and apply to red tide formation from statistical analyses on the relationships between red tide formation and meteorological factors. In future, it should be realized the near real time monitoring for red tide by the development of remote sensing technique and the construction of integrated model by the red tide information management system (the data base of red tide - meteorological informations). Finally our purpose is support to the prediction information for the possible red tide occurrence by coastal meteorological information and contribute to reduce the red tide disaster by the prediction technique for red tide.

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Enhancing Red Tides Prediction using Fuzzy Reasoning and Naive Bayes Classifier (나이브베이스 분류자와 퍼지 추론을 이용한 적조 발생 예측의 성능향상)

  • Park, Sun;Lee, Seong-Ro
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.15 no.9
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    • pp.1881-1888
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    • 2011
  • Red tide is a natural phenomenon to bloom harmful algal, which fish and shellfish die en masse. Red tide damage with respect to sea farming has been occurred each year. Red tide damage can be minimized by means of prediction of red tide blooms. Red tide prediction using naive bayes classifier can be achieve good prediction results. The result of naive bayes method only determine red tide blooms, whereas the method can not know how increasing of red tide algae density. In this paper, we proposed the red tide blooms prediction method using fuzzy reasoning and naive bayes classifier. The proposed method can enhance the precision of red tide prediction and forecast the increasing density of red tide algae.

Red Tide Blooms Prediction using Fuzzy Reasoning (퍼지 추론을 이용한 적조 발생 예측)

  • Park, Sun;Lee, Seong-Ro
    • The KIPS Transactions:PartB
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    • v.18B no.5
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    • pp.291-294
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    • 2011
  • Red tide is a temporary natural phenomenon to change sea color by harmful algal blooms, which finfish and shellfish die en masse. There have been many studies on red tide due to increasing of harmful algae damage of fisheries in Korea. Particularly, red tide damage can be minimized by means of prediction of red tide blooms. However, the most of red tide research in Korea has been focused only classification of red tide which it is not enough for predicting red tide blooms. In this paper, we proposed the red tide blooms prediction method using fuzzy reasoning.

Enhancing of Red Tide Blooms Prediction using Ensemble Train (앙상블 학습을 이용한 적조 발생 예측의 성능향상)

  • Park, Sun;Jeong, Min-A;Lee, Seong-Ro
    • Journal of the Institute of Electronics Engineers of Korea SP
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    • v.49 no.1
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    • pp.41-48
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    • 2012
  • Red tide is a natural phenomenon temporary blooming harmful algal with changing sea color from normal to red, which fish and shellfish die en masse. It also give a bad influence to coastal environment and sea ecosystem. The damage of sea farming by a red tide has been occurred each year which it cost much to prevent disasters of red tide blooms. Red tide damage and prevention cost of red tide disasters can be minimized by means of prediction of red tide blooms. In this paper, we proposed the red tide blooms prediction method using ensemble train. The proposed method use the bagging and boosting ensemble train methods for enhancing red tide prediction and forecast. The experimental results demonstrate that the proposed method achieves a better red tide prediction performance than other single classifiers.

Meteorological Information for Red Tide : Technical Development of Red Tide Prediction in the Korean Coastal Areas by Meteorological Factors (적조기상정보 : 기상인자를 활용한 연안 적조예측기술 개발)

  • Yoon Hong-Joo
    • Proceedings of the KSRS Conference
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    • 2006.03a
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    • pp.105-108
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    • 2006
  • Red tide(harmful algae) in the Korean Coastal Waters has a given a great damage to the fishery every you. However, the aim of our study understands the influence of meteorological factors (air and water temperature, precipitation, sunshine, solar radiation, winds) relating to the mechanism of red tide occurrence and monitors red tide by satellite remote sensing, and analyzes the potential area for red tide occurrence by GIS. The meteorological factors have directly influenced on red tide formation. Thus, We want to predict and apply to red tide formation from statistical analyses on the relationships between red tide formation and meteorological factors. In future, it should be realized the near real time monitoring for red tide by the development of remote sensing technique and the construction of integrated model by the red tide information management system (the data base of red tide - meteorological informations). Finally our purpose is support to the prediction information for the possible red tide occurrence by coastal meteorological information and contribute to reduce the red tide disaster by the prediction technique for red tide.

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Meteorological Information for Red Tide : Technical Development of Red Tide Prediction in the Korean Coastal Areas by eteorological Factors (적조기상정보 : 기상인자를 활용한 연안 적조예측기술 개발)

  • Yoon Hong-Joo
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.9 no.4
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    • pp.844-853
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    • 2005
  • Red tide(harmful algae) in the Korean Coastal Waters has a given a given damage to the fishery every year. However, the aim of our study understands the influence of meteorological factors (air and water temperature, precipitation sunshine, solar radiation, winds) relating to the mechanism of red tide occurrence and monitors red tide by satellite remote sensing, and analyzes the potential area for red tide occurrence by GIS. The meteorological factors have directly influenced on red tide formation. Thus, We want to predict and apply to red tide formation from statistical analyses on the relationships between red tide formation and meteorological factors. In future, it should be realized the near real time monitoring for red tide by the development of remote sensing technique and the construction of integrated model by the red tide information management system (the data base of red tide - meteorological informations. Finally our purpose is support to the prediction information for the possible red tide occurrence by coastal meteorological information and contribute to reduce the red tide disaster by the prediction technique for red tide.

Red Tide Prediction using Neural Network and SVM (신경망과 SVM을 이용한 적조 발생 예측)

  • Park, Sun;Kim, Kyung-Jun;Lee, Jin-Seok;Lee, Seong-Ro
    • Journal of the Institute of Electronics Engineers of Korea SP
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    • v.48 no.5
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    • pp.39-45
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    • 2011
  • There have been many studies on red tide because of increasing of damage to sea farming by a red tide blooms of harmful algae. The studies of red tide have mostly focused chemical properties and investigation of biological cause. If we can predict the occurrence of red tide, we will be able to minimize the damage of red tide. However, internal study of prediction of red tide blooms is only classification method that is still insufficient for red tide blooms forecast. In this paper, we proposed the red tide blooms prediction method using neural network and SVM.

The study on Estimate of Tidal Power Using Matlab T-tide Based on Tide Prediction (Matlab T-tide를 이용한 조위예측기반의 조력발전량 산정에 관한 연구)

  • Lee, Sung-Hun;Kwak, Hee-Jin;Kim, Jong-Deug;Lee, Eun-Chun;Kim, Ji-Chan;Jeon, Kyeong-Sik
    • Proceedings of the KIEE Conference
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    • 2015.07a
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    • pp.1048-1049
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    • 2015
  • The sihwa tidal power plant is the first tidal power plant in korea and the biggest of the world. The tidal power turbine is operated by tidal energy. The tidal energy is generated by the relative motion of the earth and celestial masses specially the sun and the moon, which interact via gravitational forces. The tidal power is estimated by the predicted the tidal amplitude and phase. This paper gives a process of estimate of tidal power using Matlab T-tide based on tide prediction. The proposed method is tested using actual recorded data comparing to predicted date.

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Prediction of Red Tide Occurrence by using Oceanic and Atmospheric Data by Satellite (인공위성을 통한 해양·기상자료를 이용한 적조발생예보)

  • Oh, Seung-Yeol;Park, Jae-Moon;Yoon, Hong-Joo
    • The Journal of the Korea institute of electronic communication sciences
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    • v.10 no.2
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    • pp.311-318
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    • 2015
  • Red tide occurs every year in the coastal seas of the South Korea, This phenomena has become a national issue of environmental and economic damage. In this study, we analyzed a suitable conditions to occur the red tide by using oceanic and atmospheric data during 10 years, These factors were applied to predict the red tide occurrence from 2012 to 2014. As a result, in 2012 and 2013, it is able to alarm the red tide occurrence before 6~11 days. However, in compared to the normal year and 2014, the prediction of red tide occurrence were less accurate because of more precipitation, short sunshine duration, low temperature waters. Therefore, it is necessary to further investigate the impact of sunshine duration(Solar radiation) on red tide occurrence, it is more necessary to consider the comprehensive analysis using additional oceanic and atmospheric factors.

A Method for Improvement of Tide and Tidal Current Prediction Accuracy (조위 및 조류 예측 정확도의 개선 방법)

  • Jung, Tae-Sung
    • Journal of the Korean Society for Marine Environment & Energy
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    • v.13 no.4
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    • pp.234-240
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    • 2010
  • In order to predict coastal environmental changes caused by coastal development and effectively manage marine environment, the exact information about water level changes and hydrodynamic circulation is essential. However, most of the environmental impact assessment has been using only limited tidal constituents in the numerical tide model to predict the real tide and tidal currents caused by the synthesis of many other tidal constituents, which causes an error in the environmental impact assessment. In this study, a method, which uses the limited tidal constituents at the offshore open boundaries and the observed tide at the inner or nearby point to predict the real tide in the model domain accurately, is suggested. Tidal and tidal currents predicted by the suggested method agreed well with the observations.