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  1. Tropical Warm Pool International Cloud ExperimentTWP-ICE • How do the storms over Darwin happen? • What is in the clouds over Darwin? • Are we taking good measurements?

  2. The Tropical Warm Pool - International Cloud Experiment TWP-ICE

  3. Why was Darwin chosen for TWP-ICE? • Australian Monsoon • Wet season (lots of clouds!) • Atmospheric Radiation and Measurement site (ARM) • Instruments available • Climate Record TWP-ICE location

  4. What was Lis doing in Darwin? Plotting Airplane Tracks Mapping Cirrus Clouds Learning about research Creating Graphics

  5. Why do meteorologists care about clouds (and why should you care)? • Roles of clouds • Source of precipitation • Reflect sunlight (create shadows) cools the Earth’s surface • Can ALSO heat the Earth’s surface • Come in interesting shapes

  6. The journey of a cirrus cloud named Icy • Let’s take a journey and follow Icy! • Where did Icy form? • What is Icy carrying? • Where did the journey start? • Where has Icy been on the journey and where is Icy going? Icy

  7. Is Icy, the cirrus cloud outside now?

  8. E. Cohen E. Cohen Cloud Characteristics • Cirrus • Fiber or Hair • Cumulus • Heaped or Piled

  9. E. Cohen E. Cohen Cloud Characteristics • Stratus • Sheet or Layer • Nimbus • Rain Making

  10. E. Cohen E. Cohen Is Icy outside right now? • CIRRUS CLOUDS • Usually appear white, except for sunrise/set • Usually thin and composed of almost all ice crystals

  11. E. Cohen Cloud LevelsHigh Clouds • CIRRUS • CIRROSTRATUS • CIRROCUMULUS Photo: WBZ-Mos

  12. Where did Icy come from? Blown off ice crystals from a cumulonimbus cloud Anvil Ice crystals formed from lifted air Anvil

  13. What is Icy bringing on the journey? Icy has been carrying • Many Gases • Many small particles • Salt • Dust • Ice crystals!

  14. From Korolev and Isaac, 2005 Icy is made up of ice crystals! Is it easy to measure ice crystals?

  15. How did we measure Icy? Weather balloons Aircraft Instrument Stations and Boat

  16. Weather balloon (Radiosonde) Measures temperature, humidity, wind speed, and wind direction all the way up!

  17. Balloon Launch

  18. Airplanes! Dornier Dimona

  19. High Flying Airplanes Proteus Egrett

  20. On the Research Boat!

  21. Instruments!

  22. Icy is in a large community of clouds Icy

  23. Where did Icy come from? Cirrus Cloud Tracking Follow the black box. Can you follow the shapes in box?

  24. Questions? eac26@cornell.edu