open-source mobile weather stations: providing information for a more secure water future
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Open-Source Mobile Weather Stations:Providing Information for a More Secure Water Future
David A. Wiberg, Water Futures Theme Leader
Yann Chemin, Soumya Balasubramanya, Lahiru Wijesinghe, Farah Ahmed, Mohamed Aheeyar
Launch Workshop
“Open-source mobile weather stations:
reducing flood damages and increasing the preparedness of communities”
IWMI, Sri Lanka,
3 May, 2016
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IWMI’s vision - A water-secure world
IWMI’s mission - To provide evidence-based solutions to
sustainably manage water and land resources for food security, people’s livelihoods and the environment
Water Futures vision – A decision support toolkit that helps
planners, managers and stakeholders understand and assess possible futures and sets of solutions.
Mission - To identify contextually-appropriate pathways to achieving
sustainable water security.
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Half our planet’s population are water insecure… uncertain futures
Absent or unreliable WSS Food security and Irrigation
The impacts of unmitigated variability including floods & droughts Degraded water environments
Photo: Pablo Tosco/Oxfam(Flickr CC)
Photo: Felix Antonio / IWMI
Photos: Neil Palmer / IWMI
Photo: Hamish John Appelby / IWMI
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1950 1970 1990 2010 2030 2050
Urban Population Share (%)
SSP1 (Asia)
SSP2 (Asia)
SSP3 (Asia)
SSP4 (Asia)
SSP5 (Asia)
SSP1
SSP2
SSP3
SSP4
SSP5
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1970 1990 2010 2030 2050
Income (GDP/cap)SSP1 (Asia)
SSP2 (Asia)
SSP3 (Asia)
SSP4 (Asia)
SSP5 (Asia)
SSP1 (ROW)
SSP2
SSP3
SSP4
SSP5
• Water use grows with income.
• GDP/capita rises everywhere, while GDP in China could start to decrease in the latter half of the century.
Photo: Neil Palmer / IWMI
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Climate Change
Schewe et al. (2013)
Relative change in annual discharge at 2 °C compared with present day, under RCP8.5.
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Increasing uncertaintyDecreasing knowledge
Median rainfall and standard deviation USA - SSA
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Expensive
Not available in local market
Closed/Proprietary system
Manual recording/entering system
Solution is, go for open design
Available solutions…
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Available non-local solutions…
Ex-
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Mobile Weather Station Core…
EXCEL
Comma Separated
Values sheet
$80
$80$10
$10
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Document costs of mobile stations
Price/Unit(USD) Unit Cost
F08079SerialLogChipOpenSourceDataLoggerModule* 9.50 1 9.50
JSTSHJumper6Wire(GPS)* 2.95 1 2.95
GPSreceiver* 39.95 1 39.95
Weathermeter[1] 76.95 1 76.95
WeatherShieldforArduino* 39.95 1 39.95
RJ11(x2),6pinconnectorforWeatherShield* 1.25 1 1.25
Arduinostackableheaderkit-R3* 1.50 1 1.50
8GbMemoryCard* 6.85 1 6.85
ArduinoMega-CircuitBoards* 8.22 1 8.22
5ASolarControllor* 9.59 1 9.59
SolarPanels* 27.39 1 27.39
MotorbikeBattery* 26.70 1 26.70
Parts* 20.54 1 20.54
Steelstandstructure* 47.93 1 47.93
GSMModule* 30.00 1 30.00
Total[2] 349.25 1 349.25
[1]TobereplacedeverythreeyearsinSL
[2]Entireweatherstationtobereplacedevery10years(recommended)
Equipment
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MOBILE WEATHER STATIONS SUMMARY
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