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A weather forecast is an estimate of future atmospheric conditions, providing insights into cloudiness, precipitation, wind speeds, and other variables that significantly impact our environment. In the Philippines, understanding these factors is crucial for planning, safety, and agriculture due to its diverse topography and unique climate.
of creating a weather forecast begins with gathering observations from various sources across land and sea. This comprehensive data set serves as the foundation upon which accurate predictions are made possible.
Observations are collected continuously using standard meteorological instruments at land-based stations and through satellite, radar, rcraft, and balloon measurements for upper-r conditions.
Land-based weather stations monitor pressure, wind directionspeed, temperature, humidity levels, cloud formations, precipitation patterns, and visibility.
Commercial planes gather data during flights, while polar orbiting satellites capture global imagery once every hour and geostationary satellites provide continuous coverage.
Data from various sources is transmitted to centralized collection centers via radiophones, teletype s, facsimile, or telephones. Weather satellite pictures are sent through ground receiving stations while radar data reaches forecasting centers directly.
Once received and decoded at the central locations, data points such as pressure systems, temperature distributions, wind vectors, and cloud patterns are plotted on specialized maps for different altitudes. Surface observations are compiled onto standard maps prepared every six hours.
Data is analyzed by connecting regions with similar atmospheric pressures and tracking wind directions to identify high-pressure systems, low-pressure areas, fronts, intertropical convergence zones, and more.
Streamline analysis is used here, drawing lines that represent the flow of r currents. This highlights anticyclones high pressure and cyclones low pressure.
Computer- maps from weatherare examined manually to pinpoint areas affected by various meteorological systems.
Latest satellite images are compared agnst previous ones, noting changes in cloud formations that correlate with evolving weather patterns.
Radar reports are analyzed for wind speeds and rnfall distributions across the forecast region.
Based on the comprehensive analysis of data from all sources, a detled forecast is developed to predict the movement and position of major weather systems 24 hours ahead. This information is then distributed via radio stations, telephones, and fax s.
The creation of a weather forecast is a complex process requiring sophisticated technology and meticulous data analysis. real-time monitoring from ground-based sensors, satellite surveillance, radar tracking, and computer modeling to ensure accurate predictions that are essential for the Philippines' diverse communities and industries.
This article is reproduced from: https://www.pagasa.dost.gov.ph/learning-tools/how-weather-forecast-made
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Comprehensive Weather Forecasting Process Data Collection from Global Sources Observation Tools for Atmospheric Conditions Satellite and Radar Data Integration Surface Weather Map Analysis Techniques Numerical Model Output Review Methodology