ice nucleation characteristics of asian and saharan desert dust

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Field P.R., Moehler O., Connolly P., Kraemer M., Cotton R., Heymsfield A.J., Schnaiter M. Ice nucleation characteristics of Asian and Saharan desert dust. Saharan dust sample — desert close to Cairo, Egypt (SD2). Asian dust sample —Takla Makan desert, China (AD1). - PowerPoint PPT Presentation

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Ice nucleation characteristics of Asian and Saharan desert dustField P.R., Moehler O., Connolly P., Kraemer M., Cotton R., Heymsfield A.J., Schnaiter M.
Saharan dust sampledesert close to Cairo, Egypt (SD2)Asian dust sampleTakla Makan desert, China (AD1)Temperature range: -20 to -50C
SID sizeSID concSID AfSi, SwT, P-50-580.41.01.61101000.110110100
SID sizeSID concSID AfSi, SwT, P-34-461101001101000.41.01.60.110
0.41.01.40.110SID sizeSID concSID AfSi, SwT, P-22-34110100110100
1.01.21.41.6Critical ice saturation ratio-60-40-20Critical Temperature [oC]
-60-40-20Critical Temperature [oC]1.00.10.01Ice nucleation efficiency
ConclusionsNo deposition nucleation for T>-35CT>-30C: Efficiency ~1%T10%Repeated nucleation decreases critical ice saturation req'd for deposition nucleation

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