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Water cycle

Water cycle. Investigation of specific elements in water cycle. Juraj Vančo 93. p rístav vodných skaut o v a skautiek Tortuga Trenčín Sep 2013. A genda. Cloud as a water cycle element Question raise Example Result Forest in water cycle Question raise Experiment How to… Results.

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Water cycle

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  1. Water cycle Investigation of specific elements in water cycle Juraj Vančo 93. prístav vodných skautov a skautiek Tortuga Trenčín Sep 2013

  2. Agenda • Cloud as a water cycle element • Question raise • Example • Result • Forest in water cycle • Question raise • Experiment • How to… • Results

  3. Cloud as a water cycle element • Cloud consists of water, not vapor • aerosols particles accumulate molecules of water to create droplets • small drops, up to 10 - 100 micrometers • Movement of particles (air temperature effect) => getting more dense • water air capacity => absolute humidity => rain

  4. Question • How much water is in a cloud over a garden? • Stratocumulus / cumulonimbus

  5. Example • 10mm= 1cm of water • 10 kg = 10 liters / 1 m2 • 11 cans / 1 m2 • Garden: 10m x 10m = 100 m2 • 1000 kg = 1000 liters / garden • 5 barrels / garden

  6. Example- computation • Density of dry air: 0.9 - 1.2 kg/m3 • Density of vapor < density of air • Dalton’s law:

  7. Example- result Stratocumulus: 1500m – 2000m Cumulonimbus: 1000m – 12000m >100kg/m2 >6kg/m2 >150 kg/m2 >37 kg/m2

  8. Forest in water cycle • Knowing more about water= BieleKarpaty educational trail • What does the information panel say? • Forest soil retention capability vs. meadow soil retention capability: (Čabouň, Mindáš, LVÚ ZV) 68% : 46% = 1.5

  9. Question • Microclimate • tree and transpiration • Forest is an umbrella? • How much water evaporates back??

  10. Experiment • Create your own precipitation meter

  11. Result • Data measured during >2 mostly rainy weeks, working days Forest returns > 3x more water back

  12. Result- conclusion • Inspect preception meter once again and make new measurement • If accepted: check for first order pass filter (probable) • For short frequent rains forest’s contribution factor to prevent floods is more than 3 x 1,5 5

  13. Experiment- next plans • Differential pressure sensor for water level

  14. Experiment- next plans • MPXC2011DT1

  15. Experiment- next plans • Powered by ultra low power microcontroller

  16. Q & A • Thanks for watching

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