1991 cedarworkshop tutorialcedarweb.vsp.ucar.edu/wiki/images/b/bd/1991_cedar_tutorial_fritt… ·...
TRANSCRIPT
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1991 CEDAR Workshop Tutorial
NIST Auditorium, Boulder, CO
Tuesday, June 18, 1991
Research Challenges in Observational
Atmospheric Dynamics: Opportunities and
Important Studies
David Fritts
University of Alaska at Fairbanks
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Wm/Mm»OSMlWmSK m OBSBtVATIGWAL ATMrnmSKZ^m*MICS:Gm>RTOrmiES
Dave Fritts
Geophysical InstituteUniversity of Alaska
WHAT HAVE WE LEARNED SO FAR?
- mean smucnare ANf>nrernr aww
-character Mmwrnmsmrm ATMOSPHERIC motions
- insights wm mm^Ammoc^sms, tiieoretical
WIT^RE SHOULD WE^0«S^^ft|R&?
- MAJOR $CS3*C£&SyES
- OBSERVATIONAL HOOKEEBK;
- OPPORTUNITIES PiLESENTJED BY NiW INSTRFMEJTTCAPABILITIES
(THE MAJOR CHALLENGES LEAI9EAD!) /'^^•••SHBBarBW-
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Dynamics of theMesosphere and Lower Thermosphere
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FUTURE CEDAR RESEARCH PRTORITIRS { ^^n*,*^ *,e* i)
MORE COMPLETE VIEW OF ATMOSPHERIC CIRCULATION ANDSTRUCTURE
* - MEAN WIND (U,V,W), THERMAL, AND CONSTITUENTSTRUCTURES ~*
- HEMISPHERIC AND REGIONAL ASYMMETRIES
- STATISTICAL FLUCTUATIONS, SPATIAL AND TEMPORAL SCALES
-SECULAR CHANGES, RESPONSES TO C02, CFCS, O3, ETC.
QUANTIFICATION OF SOLAR INFLUENCES
-FLUXES, HEATING
- MOMENTUM INPUTS
* -VARIABILITY
QUANTIFICATION OF WAVE PROCESSES (GRAVITY TIDALPLANETARY)
% - SOURCE STRENGTH, DISTRIBUTION, AND VARIABILITY (LOWERATMOSPHERE!) l
% - WAVE I1LTERIM5, INTERACTIONS, AND ANISOTROPY
ft -OTUPUhKJAJTO TRANSPORTS, VERTO
$ WAVE DISSIPATION, TURBULENCE, AND DIFFUSION
$ -FORCING OF THE MEAN STATE
- COUPLING TO RADIATIVE AND CHEMICAL PROCESSES
- INPUTS TO MODELING AND THEORETICAL EFFORTS
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Pot-temp max: 133E+00 mire-2.42E-01 Pot-temp mac 133E+00 mre-2.42E-01
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t= 60.00t= 84.00
t= 72.00t=«K0O
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IJEW CAPABILITIES
- HIGH-RES( LUTION MEASUREMENTS
-SIMULTANEOUS WINDS AND TEMPERATURES
-CONTINUOUS HEIGHT PROFILES. - 0- 100f KM
"C°CSSm^TR3Y STUDIES °F DYNAMICS. RADIATION. AND
MAJOR MEASUREMENT NEEDS
-CONTINUOUS LONG-TERM MEASUREMENTS
-COMPREHENSIVE. MULTI-INSTRUMENT CAMPAIGNS
S- VERTICAL COUPLING STUDIES (WTTHOUT RADAR "GAP")*S> RESPONSES TO WAVE SOURCE/FILTERING VARIABILrTY^ SENsrnvnY to verticaland meridicnalcirculation*S- FLUX MEASUREMENTS! -MOMENTUM. HEAT. ENERGY
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Increment
150 250 350 450 550
Zonal Wind Velocity (m/s)2000 LT 2100 2200 2300 0 0100 0200
160 180 200 220 240 260 280 300
Temperature (K)^IW^Sr^^^^^^tbyaSrn/s for the 14-15of the profiles have been JESSES JaS?SEf-W 1""doffset •* 3K. AU«*nea » ij km vertical and 30 mm temporal resolution.
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