Automatic Weather Station (AWS)

Automatic Weather Station (AWS)

This work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKThis work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HK2011/7/19IntroductionThis work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKWeather InformationThis work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKAll Components of AWS

ISS (Integrated Sensors Station)AnemometerThis work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKTemperature

This work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKOutdoor Thermometer

Sensor boardRadiation shieldThis work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HK

Outdoor ThermometerInside radiation shield

ThermistorThermistor:Resistance varies with temperatureThis work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKOutdoor Thermometer

Radiation ShieldThis work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKRelative HumidityWater vapor in air is saturated, no more water can be carried by air.RH = 100% ?

This work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HK2011/7/19Outdoor HygrometerInside radiation shield (next to the thermometer)Working Principle:Measure the change in resistance or capacitance to evaluate change in humidity.

HygrometerThis work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKRainfallUnit: mm / inFunnel shape rain collectorCollect rain drops

Rain collector

HoleUsed by HKOThis work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKRainfall

1 tip = 0.2 mmRainfall = tipping times x 0.2 mmCycleABABThis work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HK2011/7/19Ultra Violet (UV) IndexWavelength() for UVI: 295 to 325 nmAdjusted according to the sensitivity of human skin (McKinlay-Diffey Erythema action spectrum)No unitTypical value: 15 (highest record in HK)

SensorBubble LevelThis work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKSolar RadiationPower of sunlight on a surface - irradianceUnit: Watt per meter square (Wm-2) - Power per unit area

SensorBubble LevelThis work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKSolar and UV sensor

bubble level Adjust the sensors until the bubble is at the centre of the black circleThis work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKWind SpeedUsed by HKO

Wind vaneAnemometerWind cupThis work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKWind Speed

WindThis work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKWind DirectionRecord the wind directionWind vane points to where the wind come fromMounting bar must point to north when installExpressions:degree (o)16 directions(i.e, E, S, W, N, NE, SE, NW, SW, NNE, ENE, ESE, SSE, NNW, WNW, SSW, WSW)

Wind vaneMounting barPoint NorthThis work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HK

PressureBarometer in the consoleWorking principle:Measure the resistance of thin film () in piezoresistive () sensor exerted by the atmosphere Unit: Millimeter of mercury (mmHg)Millibar (mbar)Hectopascal (hPa)Pressure trend: important for weather forecastingUsed by HKOHecto = 100 This work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKSensor Interface ModuleCollect raw data from all sensorsTransmit coded data to the consoleMax range: 300m

Console

UVSUNRAINWINDTEMP& HUMThis work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKConsoleReceive and decode data from sensor interface module

Display latest weather information

Transfer data to computer for:display and storagewebpage generation sending back to Co-WIN database server

This work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKCo-WIN websiteWebsite: http://weather.ap.polyu.edu.hk/

Co-developed by HKO and PolyU AP

This work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKCo-WIN websiteAWSs located at different school and organization membersKeep sending data back every minute to Co-WIN database server in the Department of Applied Physics, HKPolyU via internetProvide latest weather information to the publicAs a local weather reference complementary to weather stations of HKO

This work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKCo-WIN websiteParameters in weather map:TemperatureMax/Min TemperatureRelative HumidityWind SpeedRainfallUV IndexSolar RadiationPressure

This work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKCo-WIN websiteView weather data history from different location

Time series display

This work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKCo-WIN websiteDownload weather data history

Data exported in .csv format

MS Excel compatible

This work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKCo-WIN websiteDevelopment

More weather information will be available soon

Release of new design with Google map

Integrate more functions for mobile learning

This work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HKENDThis work by Matthew Wong of Community Weather Information Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Hong Kong License To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/hk/deed.en_HK