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CONTRASTING THE ICE NUCLEATION IN TWO LEE WAVE CLOUDS OBSERVED DURING THE ICEL CAMPAIGN Field
| Content Provider | Semantic Scholar |
|---|---|
| Author | J. Heymsfield A. C. Rogers D. Stith, J. J. DeMott P. J. Murphy S. Prather, Kim |
| Abstract | We present some early observations from the recent NSF funded ICE-L (Ice in Clouds Experiment Layer clouds) field campaign over Wyoming and Colorado in fall 2007. The long term goal of the project is to show that the number of ice particles formed by nucleation mechanisms can be predicted if the aerosol feeding into the cloud is adequately characterised both physically and chemically. Airborne observations made with the NCAR C130 in two isolated lee wave clouds on separate days are compared and contrasted. While both clouds were sampled between -20C and -30C, one cloud contained relatively large amounts of ice while the other was relatively devoid of ice. The data presented are from flights RF03 and RF04 made on the 16 November 2007 and the 18 November 2007, respectively. Over this period the synoptic situation was characterised by a low pressure system in the Pacific to the northwest of the operating area. This system drifted slowly north over three days but spawned a smaller shorter wavelength low pressure system that remained further south. This situation maintained a slight ridging over the operating region and advected moisture at midlevels into Wyoming on strong westerlies. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://cabernet.atmosfcu.unam.mx/ICCP-2008/abstracts/Program_on_line/Poster_06/Field_extended_l.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
