• Title/Summary/Keyword: Meteorological monitoring

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Benefits of the Next Generation Geostationary Meteorological Satellite Observation and Policy Plans for Expanding Satellite Data Application: Lessons from GOES-16 (차세대 정지궤도 기상위성관측의 편익과 활용 확대 방안: GOES-16에서 얻은 교훈)

  • Kim, Jiyoung;Jang, Kun-Il
    • Atmosphere
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    • v.28 no.2
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    • pp.201-209
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    • 2018
  • Benefits of the next generation geostationary meteorological satellite observation (e.g., GEO-KOMPSAT-2A) are qualitatively and comprehensively described and discussed. Main beneficial phenomena for application can be listed as tropical cyclones (typhoon), high impact weather (heavy rainfall, lightning, and hail), ocean, air pollution (particulate matter), forest fire, fog, aircraft icing, volcanic eruption, and space weather. The next generation satellites with highly enhanced spatial and temporal resolution images, expanding channels, and basic and additional products are expected to create the new valuable benefits, including the contribution to the reduction of socioeconomic losses due to weather-related disasters. In particular, the new satellite observations are readily applicable to early warning and very-short time forecast application of hazardous weather phenomena, global climate change monitoring and adaptation, improvement of numerical weather forecast skill, and technical improvement of space weather monitoring and forecast. Several policy plans for expanding the application of the next generation satellite data are suggested.

Statistical Analyses on the Relationships between Red Tide Formation and Meteorological Factors in the Korean Coasts, and Satellite Monitoring for Red Tide (한국 연안에서의 적조형성과 기상인자간의 상관성에 대한 통계학적 해석 및 위성에 의한 적조 모니터링)

  • Yoon, Hong-Joo;Kim, Hyung-Seok
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.41 no.2
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    • pp.140-146
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    • 2005
  • The aim of our study understands the influence of meteorological factors relating to the formation of the red tide, and monitors the red tide by satellite remote sensing. The meteorological factors have directly influenced on red tide formation. Thus, it was possible to predict and apply to red tide formation from statistical analyses on the realtionships between red tide formation and meteorological factors, and also to realize the near real time monitoring for red tide by satellite remote sensing.

Development of Real-Time Drought Monitoring and Prediction System on Korea & East Asia Region (한반도·동아시아 지역의 실시간 가뭄 감시 및 전망 시스템 개발)

  • Bae, Deg-Hyo;Son, Kyung-Hwan;Ahn, Joong-Bae;Hong, Ja-Young;Kim, Gwang-Soeb;Chung, Jun-Seok;Jung, Ui-Seok;Kim, Jong-Khun
    • Atmosphere
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    • v.22 no.2
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    • pp.267-277
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    • 2012
  • The objectives of this study are to develop a real-time drought monitoring and prediction system on the East Asia domain and to evaluate the performance of the system by using past historical drought records. The system is mainly composed of two parts: drought monitoring for providing current drought indices with meteorological and hydrological conditions; drought outlooks for suggesting future drought indices and future hydrometeorological conditions. Both parts represent the drought conditions on the East Asia domain (latitude $21.15{\sim}50.15^{\circ}$, longitude $104.40{\sim}149.65^{\circ}$), Korea domain (latitude $30.40{\sim}43.15^{\circ}$, longitude $118.65{\sim}135.65^{\circ}$) and South Korea domain (latitude $30.40{\sim}43.15^{\circ}$, longitude $118.65{\sim}135.65^{\circ}$), respectively. The observed meteorological data from ASOS (Automated Surface Observing System) and AWS (Automatic Weather System) of KMA (Korean Meteorological Administration) and model-driven hydrological data from LSM (Land Surface model) are used for the real-time drought monitoring, while the monthly and seasonal weather forecast information from UM (Unified Model) of KMA are utilized for drought outlooks. For the evaluation of the system, past historical drought records occurred in Korea are surveyed and are compared with the application results of the system. The results demonstrated that the selected drought indices such as KMA drought index, SPI (3), SPI (6), PDSI, SRI and SSI are reasonable, especially, the performance of SRI and SSI provides higher accuracy that the others.

Spatial Interpolation and Assimilation Methods for Satellite and Ground Meteorological Data in Vietnam

  • Do, Khac Phong;Nguyen, Ba Tung;Nguyen, Xuan Thanh;Bui, Quang Hung;Tran, Nguyen Le;Nguyen, Thi Nhat Thanh;Vuong, Van Quynh;Nguyen, Huy Lai;Le, Thanh Ha
    • Journal of Information Processing Systems
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    • v.11 no.4
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    • pp.556-572
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    • 2015
  • This paper presents the applications of spatial interpolation and assimilation methods for satellite and ground meteorological data, including temperature, relative humidity, and precipitation in regions of Vietnam. In this work, Universal Kriging is used for spatially interpolating ground data and its interpolated results are assimilated with corresponding satellite data to anticipate better gridded data. The input meteorological data was collected from 98 ground weather stations located all over Vietnam; whereas, the satellite data consists of the MODIS Atmospheric Profiles product (MOD07), the ASTER Global Digital Elevation Map (ASTER DEM), and the Tropical Rainfall Measuring Mission (TRMM) in six years. The outputs are gridded fields of temperature, relative humidity, and precipitation. The empirical results were evaluated by using the Root mean square error (RMSE) and the mean percent error (MPE), which illustrate that Universal Kriging interpolation obtains higher accuracy than other forms of Kriging; whereas, the assimilation for precipitation gradually reduces RMSE and significantly MPE. It also reveals that the accuracy of temperature and humidity when employing assimilation that is not significantly improved because of low MODIS retrieval due to cloud contamination.

Development of a Wind Turbine Monitoring System using LabVIEW (LabVIEW를 이용한 풍력발전기 모니터링 시스템 개발)

  • 남윤수;김형기;유능수;이정완
    • Journal of the Korean Society for Precision Engineering
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    • v.20 no.5
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    • pp.92-98
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    • 2003
  • A wind turbine monitoring system is essential equipment fur the performance evaluation and mechanical load analysis of a wind turbine. A monitoring system using LabVIEW is developed in this study. This system monitors signals from a meteorological mast, wind turbine generator, and tower. The discrete signals which are sampled at t Hz are automatically saved on a data file in the unit of a day. Besides these basic functions, the developed monitoring system has the other several capabilities. One of them is the information access from a remote PC through the internet. A vision image of the test site area and data files that are produced by LabVIBW software can be uploaded to the main computer located in a remote site. An emergency backup system using UPS fur the power loss on the monitoring HW is also prepared, A detail explanation for the developed wind turbine monitoring system is presented in this study.

Software approach towards understanding meteorological data for environmental monitoring and assessment of peninsular Malaysia

  • Quadri, Sayed Abulhasan;Sidek, Othman;Jafar, Hadi;binti Amran, Nur Amira;bt Zabah, Ummi Nurulhaiza;bin Abdullah, Azizul
    • Advances in environmental research
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    • v.3 no.1
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    • pp.87-106
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    • 2014
  • The concern for the global environment ensues researchers from various disciplines to work in collaboration to tackle with the issues of sustainability and environmental conservation for well-being of the people. In this study, we have selected and focused on few basic environment-effecting factors such as temperature, humidity, carbon dioxide and oxygen concentration level and referred them as meteorological data. In this paper, we present the development of our own customized hardware setup, environmental monitoring device (EMD) to obtain the data. Utilizing the relationship among these basic parameters, represented in the form of formulas and equations, we tried to encode them using Matlab programming. Data visualization is achieved by plotting the graphs of basic parameters obtained from EMD as well for the derivatives using Matlab programs.

China Dust-storm Monitoring Using Meteorological Satellite

  • Xiuqing, Hu;Naimeng, Lu;Peng, Zhang;Qian, Huang
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.1224-1226
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    • 2003
  • Dust-storm is one of the heaviest hazardous weather which frequently affects most part of northern China in spring. Satellite multi-spectral observations can provide significant information for detecting and quantitative determining the property of dust-storm . An algorithm to monitor dust-storm automatically was developed based on satellite observation. The algorithm utilizes split widows technique and spectral classification technique and also developed a new dust remote sensing product Infra -red Difference Dust Index (IDDI) proxy dust-loading dataset using GMS-5.

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A Development of Modular Monitoring System for Wind Turbine Test Site (풍력 실증단지를 위한 분산 형 모니터링 시스템 개발)

  • Lee Jeong Wan;Yoo Neung Soo;Nam Yoon Su;Cho Byung Ha
    • 한국신재생에너지학회:학술대회논문집
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    • 2005.06a
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    • pp.9-12
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    • 2005
  • In this paper. we offer a new monitoring system that controls all of the windfar. it can also apply use general wind turbine systems and real meteorological tower. We propose a hierarchical releiable monitoring system connected by wireless communication channels between monitoring host computer and modular slave measuring subsystems. Our system has two hierarchical subsystems: slave measuring systems, and supervisory host computer. We design and implement that the slave measuring subsystems is placed in meteorological tower and wind turbines, and the supervisory host computer in safety zone, The micro-controller in slave measuring system is duplicated using cold-standby method for reliability. The host computer and slave system constructs a feedback system, with wireless communication channel between them. For monitoring and command function, the supervisory computer is implemented with a Personal Computer using graphic user interface. Consequently. we can get a reliable but economic system.

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A study on GEO satellite signals in L - to Ka-band affected by Asian Sand Dust

  • Hong Wan-Pyo
    • Journal of information and communication convergence engineering
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    • v.3 no.3
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    • pp.146-151
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    • 2005
  • This paper represents an attempt to bring together and analyses the measurement data measured by the Satellite Signal Monitoring Center in Korea and the Korea Meteorological Administration/Korea Meteorological Research Institute in close cooperation with this study team. This paper presents the signal characteristic of GEO satellite operating in frequency range 1 to 20GHz associated with Asian Sand Dust (the so-called Yellow Sand Dust). The downlink signal power (dBm) for L-, S-, C-, Ku-, and Ka-band frequencies from GEO satellites were measured in a clear weather and in Asian Sand Dust weather by the Satellite Signal Monitoring Center. The measured signal power(dBm) were compared to the total number concentration and size distribution of Sand Dust that were measured by the Korea Meteorological Administration/Korea Meteorological Research Institute and the possible correlation between these sets data were analyzed. The results demonstrate that the downlink signal level (dBm) of GEO satellite is attenuated by Asian Sand Dust. Hitherto, merger information has been reported as to the influence of sand dust on satellite communications operating in regions affected by sand dust.

INTRODUCTION OF COMS SYSTEM

  • Baek, Myung-Jin;Han, Cho-Young
    • Proceedings of the KSRS Conference
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    • v.1
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    • pp.56-59
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    • 2006
  • In this paper, Korea's first geostationary Communication, Ocean and Meteorological Satellte(COMS) program is introduced. COMS program is one of the Korea National Space Programs to develop and operate a pure civilian satellite of practical-use for the compound missions of meteorological observation and ocean monitoring, and space test of experimentally developed communication payload on the geostationary orbit. The target launch of COMS is scheduled at the end of 2008. COMS program is international cooperation program between KARI and ASTRIUM SAS and funded by Korean Government. COMS satellite is a hybrid satellite in the geostationary orbit, which accommodates multiple payloads of MI(Meteorological Imager), GOCI(Geostationary Ocean Color Imager), and the Ka band Satellite Communication Payload into a single spacecraft platform. The MI mission is to continuously extract meteorological products with high resolution and multi-spectral imager, to detect special weather such as storm, flood, yellow sand, and to extract data on long-term change of sea surface temperature and cloud. The GOCI mission aims at monitoring of marine environments around Korean peninsula, production of fishery information (Chlorophyll, etc.), and monitoring of long-term/short-term change of marine ecosystem. The goals of the Ka band satellite communication mission are to in-orbit verify the performances of advanced communication technologies and to experiment wide-band multi-media communication service mandatory.

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