POST ( Physics of Stratocumulus Top) Hermann Gerber, P.I. GCSS/CFMIP Meeting, 7-12 June, 2009 UBC,...
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POST POST ( ( Physics of Stratocumulus Physics of Stratocumulus Top) Top) Hermann Gerber, P.I. GCSS/CFMIP Meeting, 7-12 June, 2009 UBC, Vancouver, Canada Introduction Introduction
Transcript of POST ( Physics of Stratocumulus Top) Hermann Gerber, P.I. GCSS/CFMIP Meeting, 7-12 June, 2009 UBC,...
POSTPOST ( (Physics of Stratocumulus Top)Physics of Stratocumulus Top)
Hermann Gerber, P.I.GCSS/CFMIP Meeting, 7-12 June, 2009UBC, Vancouver, Canada
IntroductionIntroduction
University of Warsaw Szymon Malinowski, Wojciech Kumula, Krysztof Haman Gerber Scientific Hermann GerberUniversity of Utah Steven Krueger, Samantha HillUniversity of Washington Rob WoodColorado State University Takanobu YamaguchiUniversity of California, UCSC Patrick Chuang, Dione Lee RossiterUniversity of California, UCI Djamal Kheli, Carl FrieheDesert Research Institute Jim Hudson NPGS Qing WangNCAR Stuart Beaton, Wojciech GrabowskiCIRPAS Haflidi Jonsson, Roy Woods, Jesus GalvanNRL Arunas Kuciauskas, Shouping Wang, Anthony Bucholtz
PARTICIPANTS
SPONSORS
National Science FoundationOffice of Naval Research
(Stevens et al., B.A.M.S., 2003, 38)
MontereyPOST
DYCOMS II
ENTRAINMENT VELOCITY vs BUOYANCY JUMP
POST
DYCOMS II
1000-hz PVM and UFT Data
Issues
Approach
High-resolution Lagrangian aircraft measurements in unbroken Sc
What are the properties and role of the EIL (Entrainment Interface Layer)?
Is isothermal entrainment of conditioned EIL air the rule?
Are details of processes at Sc top necessary for accurate we estimates,or do knowledge of surface fluxes, interface jumps, and radiation suffice?
How important is CTEI?
Does Sc modeling from microphysical- to meso-scales compare favorably with POST observations?
Can existing parameterizations of we be improved?
CIRPAS TWIN OTTER
45.7 cm
55.9 cm
~60 cm
14 cm
38.1 cm 8.9 cm
21.6 cm
PVM
UFT
L-alphaUCI
L-alphaNCAR
L-alphaLycor, UCI
INSTRUMENTATION on T.O. NOSE
GustProbe (40 hz)
(40 hz)
(40 hz)
(1000 hz)
(1000 hz)
(100 hz)
http://www.eol.ucar.edu/projects/post/http://www.eol.ucar.edu/projects/post/
POST FLIGHTS:
July 16 – Aug. 15, 2008 17 flights (~5 hr. each)8 night-time flights9 day-time flights15 Lagrangian flights
20 km
Twin Otter Vertical Flight Track
Sc Top
Sc base
FLIGHT TO10
POST Web Page:POST Web Page:
http://www.eol.ucar.edu/projects/posthttp://www.eol.ucar.edu/projects/post
Suggested POST Web Page Browsing: POST Field Catalog,Suggested POST Web Page Browsing: POST Field Catalog,Science Team Meeting (5-6 Feb, 2009), Initial Analysis by Qing Science Team Meeting (5-6 Feb, 2009), Initial Analysis by Qing Wang at MeetingWang at Meeting
