Weather Station Report PDF
Weather Station Report PDF
Weather Station Report PDF
A weather station is a facility, either on land or sea, with instruments and equipment for observing atmospheric conditions to provide information for weather forecasts and to study the weather and climate. The measurements taken include temperature, barometric pressure, humidity, wind speed, wind direction, and precipitation amounts. Wind measurements are taken as free of other obstructions as possible, while temperature and humidity measurements are kept free from direct solar radiation, or insolation.
Resolution
Minimum Change that instrument can measure is known as resolution. OR The quality of being determined or resolute.
Temperature Sensor
Temperature sensors are devices used to measure the temperature of a medium. There are two kinds of temperature sensors: 1): contact sensors and 2): noncontact sensors. However, the three main types are thermometers, resistance temperature detectors, and thermocouples. All three of these sensors measure a physical properties which changes as a function of temperature.
Humidity Sensor
A hygrometer is an instrument used for measuring the moisture content in the atmosphere. Humidity measurement instruments usually rely on measurements of some other quantity such as temperature, pressure, mass or a mechanical or electrical change in a substance as moisture is absorbed. By calibration and calculation, these measured quantities can lead to a measurement of humidity.
Rainfall Gauge
A rain gauge (also known as udometer, pluviometer) is a type of instrument used by meteorologists and hydrologists to gather and measure the amount of liquid precipitation over a set period of time. Most rain gauges generally measure the precipitation in millimeters. The level of rainfall is sometimes reported as inches or centimeters. Rain gauge amounts are read either manually or by automatic weather station (AWS).
Evaporation meter
Evaporation Meter measures losses from storages, channels and drains. By accurately measuring and logging water level every 15 minutes and relating night time evaporation to weather data, total losses can be split up to separate seepage and evaporation components. The measured evaporation rates can then be linked to standard weather data and evaporation losses calculated daily as required. Similarly, seepage rates (mm/day) can be applied to any storage, channel or drain to calculate losses.
Instruments
Typical weather stations have the following instruments:
Thermometer for measuring air and sea surface temperature. Barometer for measuring atmospheric pressure. Hygrometer for measuring humidity. Anemometer for measuring wind speed. Rain gauge for measuring liquid precipitation over a set period of time.
In addition, at certain automated airport weather stations, additional instruments may be employed, including:
Present Weather/Precipitation Identification Sensor for identifying falling precipitation. Disdrometer for measuring drop size distribution. Transmissometer for measuring visibility. Ceilometer for measuring cloud ceiling.
More sophisticated stations may also measure the ultraviolet index, solar radiation, leaf wetness, soil moisture, soil temperature, water temperature in ponds, lakes, creeks, or rivers, and occasionally other data.
Exposure
Except for those instruments requiring direct exposure to the elements (anemometer, rain gauge), the instruments should be sheltered in a vented box, usually a Stevenson screen, to keep direct sunlight off the thermometer and wind off the hygrometer.
All current weather readings can be seen from indoors, at a glance and at any time; Routine daily maintenance chores (e.g. emptying the rain gauge) are done automatically; AWS stations can automatically record maximum and minimum values for a range of
weather parameters through each day and keep track, for example, of total monthly and yearly rainfall;
Readings can be easily taken direct from the console display; A data logger and PC can be readily linked to the station so that all weather data is
automatically logged. This means that;
Automated systems can run for weeks and months without attention whilst
continuously recording all details of the weather;
Much greater within-day detail is available e.g. the complete pattern of wind
speed & direction through the day can be logged;
Comprehensive statistics can be automatically calculated and analyzed; Impressive visual graphics can be displayed; Detailed weather conditions may be viewed at any distance from the station itself.
Free weather services often get weather data from sites that are actually miles away from your location. Weather data produced by a Weather Hawk at your location is far more accurate, and far more impressive.
Turf grass management using Weather Hawk to provide ETO (evapotranspiration) data for irrigation scheduling.
Micro-climate monitoring by more than one Weather Hawk from a single host computer.
Landfill dust management and customer complaint validation. Storm water data logging for archival purposes First responder system for environmental disaster management