• Title/Summary/Keyword: Meteorological Organization

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항공사의 기상전담조직 운영 사례와 효과에 관한 연구 (A Research and Case Study on Operating Meteorological Organization of an Airline)

  • 조진호
    • 한국항공운항학회지
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    • 제32권3호
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    • pp.137-146
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    • 2024
  • Aircraft are affected by various weather elements and phenomena as they operate vertically from the ground up to the tropopause and horizontally across temperate, tropical, and cold regions within a few hours. Meteorological information, which involves observing and forecasting these weather elements and phenomena, is crucial because it influences not only the safety of the aircraft and occurrences of cancellations, diversions, or delays but also the changes in flight time and fuel consumption. Since the routes of national carriers in Korea mainly cover regions with severe weather and significant weather changes, the role of systems and organizations for the collection, analysis, and application of meteorological information is important. This study investigated the operational case and effects of a meteorological organization at airline 'A'. It was confirmed that, following the establishment of this dedicated organization, more systematic application of meteorological information has shown operational effects such as enhancing flight safety, minimizing passenger inconvenience, and contributing to corporate management.

Calculated Damage of Italian Ryegrass in Abnormal Climate Based World Meteorological Organization Approach Using Machine Learning

  • Jae Seong Choi;Ji Yung Kim;Moonju Kim;Kyung Il Sung;Byong Wan Kim
    • 한국초지조사료학회지
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    • 제43권3호
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    • pp.190-198
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    • 2023
  • This study was conducted to calculate the damage of Italian ryegrass (IRG) by abnormal climate using machine learning and present the damage through the map. The IRG data collected 1,384. The climate data was collected from the Korea Meteorological Administration Meteorological data open portal.The machine learning model called xDeepFM was used to detect IRG damage. The damage was calculated using climate data from the Automated Synoptic Observing System (95 sites) by machine learning. The calculation of damage was the difference between the Dry matter yield (DMY)normal and DMYabnormal. The normal climate was set as the 40-year of climate data according to the year of IRG data (1986~2020). The level of abnormal climate was set as a multiple of the standard deviation applying the World Meteorological Organization (WMO) standard. The DMYnormal was ranged from 5,678 to 15,188 kg/ha. The damage of IRG differed according to region and level of abnormal climate with abnormal temperature, precipitation, and wind speed from -1,380 to 1,176, -3 to 2,465, and -830 to 962 kg/ha, respectively. The maximum damage was 1,176 kg/ha when the abnormal temperature was -2 level (+1.04℃), 2,465 kg/ha when the abnormal precipitation was all level and 962 kg/ha when the abnormal wind speed was -2 level (+1.60 ㎧). The damage calculated through the WMO method was presented as an map using QGIS. There was some blank area because there was no climate data. In order to calculate the damage of blank area, it would be possible to use the automatic weather system (AWS), which provides data from more sites than the automated synoptic observing system (ASOS).

아시아 지역 농업기상정보 공유를 위한 인터넷기반 기상정보 연동시스템 (Internet-based RAMINS II as a Future Communication Framework for AgroMeteorological Information in Asia)

  • Byong-Lyol Lee;G. Ali Kamali;Wang Shili
    • 한국농림기상학회지
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    • 제4권2호
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    • pp.127-132
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    • 2002
  • All the countries in RA II (Asia Region in WMO) welcome the establishment of a Web site dedicated to agricultural meteorology, because it is believed that the best way to improve and speed up the flow of information is the use of the Internet and the establishment of a Web site. In providing recommendation for the promotion and improvement of the AgroMeteorological service in RA II, a couple of key suggestions were proposed: (a) Exchanges of data and AgroMeteorological knowledge between member countries and between RAs, (b) Exchanges of experts between member countries as a necessary way to share the knowledge, and (c) Joint research between member countries to solve common problems in AgroMeteorological affairs. In order to meet the above requirements for RA II, an AgroMeteorological information network will be the most critical and dynamic aspect in sustainable agriculture in this region. In addition, the establishment of a Core AgroMeteorological station, recommended by CAgM of WMO, will require its own information sharing systems for communication among member countries. Inevitable use of information technologies (IT) such as information networks, databases, simulation models, GIS, and RS for regional impact assessment of environmental change on AgroEcosystem will be enforced. Thus, the regional Internet-based Agrometeorological information network has been in place since 1999, though all contributions to it have been volunteered by individuals, institutes, universities, etc.

도시기상 관측을 위한 메타데이터의 표준화 (Standardization of Metadata for Urban Meteorological Observations)

  • 송윤영;채정훈;최민혁;박문수;최영진
    • 한국대기환경학회지
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    • 제30권6호
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    • pp.600-618
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    • 2014
  • The metadata for urban meteorological observation is standardized through comparison with those established at the World Meteorological Organization and the Korea Meteorological Administration to understand the surrounding environment around the sites exactly and maintain the networks and sites efficiently. It categorizes into metadata for an observational network and observational sites. The latter is again divided into the metadata for station general information, local scale information, micro scale information, and visual information in order to explain urban environment in detail. The metadata also contains the static information such as urban structure, surface cover, metabolism, communication, building density, roof type, moisture/heat sources, and traffic as well as the update information on the environment change, maintenance, replacement, and/or calibration of sensors. The standardized metadata for urban meteorological observation is applied to the Weather Information Service Engine (WISE) integrated meteorological sensor network and sites installed at Incheon area. It will be very useful for site manager as well as researchers in fields of urban meteorology, radiation, surface energy balance, anthropogenic heat, turbulence, heat storage, and boundary layer processes.