instrumented balloon launches for attrex
DESCRIPTION
Instrumented Balloon Launches for ATTREX. Dale Hurst, Emrys Hall, Allen Jordan. Global Monitoring Division, NOAA Earth System Research Laboratory and CIRES, University of Colorado, Boulder. Boulder Balloon Soundings … still going strong after 33 years !. Instrument Payload. Ozonesonde. - PowerPoint PPT PresentationTRANSCRIPT
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Instrumented Balloon Launches for ATTREXDale Hurst, Emrys Hall, Allen Jordan
Global Monitoring Division, NOAA Earth System Research Laboratoryand CIRES, University of Colorado, Boulder
Boulder Balloon Soundings … still going strong after 33 years!
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Ozonesonde
Radiosonde
NOAA FPH
AirIntake Tubes
Payload Weight: 2.0 kg (4.4 lb)Payload Size: 15” x 12” x 8”
Instrument Payload
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Payload Measurements
Primary DataUncertainty
Instrument Measurement Product(Stratosphere)
NOAA FPH TFP H2O VMR<±10% (±0.5 ppmv)(custom)
P
POzonesonde PO3O3 VMR
<±5% (±0.3 ppmv )(DMT)Radiosonde T
<±0.5° C(Intermet) P
<±0.5 hPa 403 MHz RH NA > 12 km
GPS payload location, horizontal winds
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Balloon Flight Profile
Ascent Rate+5 m/s
(1000 ft/s)
Valve opens
Descent Rate-5 m/s
~ 70 minutes
~ 90 minutes
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Ideally …
Coordination with GH flights
• 1 balloon launch per GH flight• 4-6 flights anticipated (4 week window)• Close spatiotemporal coincidence with GH• Requires launch timing and trajectory to be
coordinated with GH flight plan
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Balloon Trajectory Prediction (2D)
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Balloon Trajectory Prediction (3D)
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Potential Launch Sites
AndersenAFB
NWSFacility
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Ballooning over the Rockies
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FPH Measurement Technique
Stable Frost Layer =equilibrium between frost layer and water vapor in air flow
PH2O = f(TFP) Clausius-Clapeyron equation (Psat over ice)
H2O VMR = PH2O / (Pair – PH2O)
CalibratedNIST scale
PID Temp Controller