C - ForOT Optical Turbulence Forecasts
C - ForOT Optical Turbulence Forecasts
C - ForOT Optical Turbulence Forecasts
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OTAM08 - 15-18 September 2008, Alghero, Italy
Measurements provide real-time estimates. <strong>Optical</strong> turbulenceevolves on time scales of the order of the ‘msec’ Measurements can access ALL spatial and temporal scales(whole spectrum) typical of the optical turbulencePROBLEM?OTAM08 – 15-18 September 2008, Alghero, Italy
( ) ( ) ( ) 2 2/3ρ = ⎡ − + ρ ⎤ = ⋅ ρDN⎣n r n r ⎦ C2 0 0NKolmogorov Modell< ρ
w′θ ′=K∂θ∂zmixing length - L 0 (h)turbulent kinetic energy'wθ∂θv0.16z'v= − ⋅ L ⋅ e ⋅φ3⋅ ∂OTAM08 – 15-18 September 2008, Alghero, Italy
ε meas− ε sim/ ε measOTAM08 – 15-18 September 2008, Alghero Italy
20(km)15105040.033.328.720.013.36.70(m/sec)-15-16-17-18log(m -2/3 )OTAM08 – 15-18 September 2008, Alghero, Italy
20 20(km) (km)1540.033.328.7(km)2015-15-161020.010513.36.75-17001020304000(m/sec)(m/sec) 10 -18 10 -17 10 -16 log(m -2/3 ) log(m 10 -15-2/3)-18OTAM08 – 15-18 September 2008, Alghero, Italy
(km)(km)OTAM08 – 15-18 September 2008, Alghero, Italy
OTAM08 – 15-18 September 2008, Alghero, Italy
1.00.80.60.40.20.0110Kona – Hawaii March 2007
1.00.80.60.40.20.0110ε meas =0.86” (TMT)Kona – Hawaii March 2007
OTAM08 – 15-18 September 2008, Alghero, Italy
OTAM08 - 15-18 September 2008, Alghero, Italy
METEOROLOGYPhysics of the Atmopshere& HydrodinamicNew generationHAR<strong>ForOT</strong>ASTRONOMYAdaptiveOpticsWavefront perturbationsby atmosphericturbulenceImage ProcessingInterferometrytraditionalHAROTAM08 – 15-18 September 2008, Alghero, Italy
Mt. GRAHAMANTARCTIC PLATEAU30 km 6000 kmLBTΔx = 500 mΔx = 100 kmAstro-MESO-NHcodeDOME C
Mt. GRAHAMANTARCTIC PLATEAU30 km 6000 kmLBTΔx = 500 mΔx = 100 kmAstro-MESO-NHcodeDOME C
General Overview that reflects the <strong>ForOT</strong> approachOTAM08 - 15-18 September 2008, Alghero, Italy
OTAM08 - 15-18 September 2008, Alghero, Italy
OTAM08 - 15-18 September 2008, Alghero, Italy
OTAM08 - 15-18 September 2008, Alghero, Italy
OTAM08 - 15-18 September 2008, Alghero, Italy
h sl∫8m1km∫8mC N 2 (z) dzC N 2 (z) dz< 0.90h sl∫8m20km∫8mC N 2 (z) dzC N 2 (z) dz< 0.90OTAM08 - 15-18 September 2008, Alghero, Italy
h sl∫8m1km∫8mC N 2 (z) dzC N 2 (z) dz< 0.90h sl∫8m20km∫8mC N 2 (z) dzC N 2 (z) dz< 0.90OTAM08 - 15-18 September 2008, Alghero, Italy
OTAM08 - 15-18 September 2008, Alghero, Italy
OTAM08 - 15-18 September 2008, Alghero, Italy
OTAM08 - 15-18 September 2008, Alghero, Italy
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