flight schedule and staff limitations hardpoint allocation and cabin layout time synchronization...

Flight schedule and staff limitationsFlight schedule and staff limitationsHardpoint allocation and cabin layoutHardpoint allocation and cabin layoutTime synchronizationTime synchronizationFlight issues – expectation around convectionFlight issues – expectation around convection

Sensor groups and expected performanceSensor groups and expected performance

C-130 and instrumentation for RICO

Flight schedule and staff limitationsFlight schedule and staff limitations

161 mission flight hours161 mission flight hours5 week deployment5 week deployment32 hours per week = 4 flights of 8 hours32 hours per week = 4 flights of 8 hours(Aircrew limits are 35 flight hours per week)(Aircrew limits are 35 flight hours per week)

=>=> Not much time for instrument maintenanceNot much time for instrument maintenancePI's should consider extra maintenance PI's should consider extra maintenance

staffstaff

1 hard down day per week.1 hard down day per week.3 technicians + 3 mechanics allocated to RICO3 technicians + 3 mechanics allocated to RICO

Hardpoint allocation and cabin layoutHardpoint allocation and cabin layout

Strawman floor planStrawman floor plan

Time synchronizationTime synchronization

Strong need for synchronization between many Strong need for synchronization between many instruments and the C-130 data logger.instruments and the C-130 data logger.

C-130 can provide time as:C-130 can provide time as:IRIG-BIRIG-BNTP (Network Time Protocol)NTP (Network Time Protocol)1 Hz serial ASCII string1 Hz serial ASCII string

Please, please ensure that high time accuracy is builtPlease, please ensure that high time accuracy is builtinto your systems – trace gas, microphysics probes, into your systems – trace gas, microphysics probes, etc.etc.

Flight issues – expectation around Flight issues – expectation around convectionconvection

Multi-aircraft flightsMulti-aircraft flightsIFRIFRRadio communication essentialRadio communication essentialFlight tracking systems: TCASFlight tracking systems: TCAS

IONIONLow level flight to 100 ft over the oceanLow level flight to 100 ft over the oceanPasses in heavy precipitation to 500 ft agl or higherPasses in heavy precipitation to 500 ft agl or higher

SABL lidar has 1000 m eye-safe distance (un-aided)SABL lidar has 1000 m eye-safe distance (un-aided)


1.1. Pressure and winds:Pressure and winds:

Mean windsMean winds

Turbulence spectra - questions about 4/3 ratio ofTurbulence spectra - questions about 4/3 ratio oflongitudinal vs. lateral and vertical spectralongitudinal vs. lateral and vertical spectra

Potential for water ingestionPotential for water ingestionConsider circles before multiple cloud penetrations?Consider circles before multiple cloud penetrations?


2. Temperature: 2. Temperature:

RosemountRosemountCooling due to wetting likely in excess of 2 degCCooling due to wetting likely in excess of 2 degC

OphirOphirRebuilt by Stuart Beaton in 2003Rebuilt by Stuart Beaton in 2003Effective path for 200 drops per cc of 12 micronEffective path for 200 drops per cc of 12 micron

radius: approx. 10 m (1 e-fold length)radius: approx. 10 m (1 e-fold length)

Wet-bulb temperature sensor? (Under investigation, not Wet-bulb temperature sensor? (Under investigation, not promised)promised)


3. Humidity: 3. Humidity:

Cooled mirrorCooled mirror

Lyman-alphaLyman-alphaReferenced to cooled mirror sensorsReferenced to cooled mirror sensorsPotential for temperature determination assumingPotential for temperature determination assumingsaturation?saturation?

TDL (Under development, not promised)TDL (Under development, not promised)

Wet-bulb temperature sensor? (Under investigation, not Wet-bulb temperature sensor? (Under investigation, not promised)promised)


4. D-value: 4. D-value:

Radar altitude – pressure altitudeRadar altitude – pressure altitude

Useful for determining surface pressure, convectiveUseful for determining surface pressure, convectiveinitiation, etc.initiation, etc.

Fluctuations probably valid to +/- 2 m or better.Fluctuations probably valid to +/- 2 m or better. Expect natural variability of 5 m (0.6 mb) or larger. Expect natural variability of 5 m (0.6 mb) or larger.


5. RAF particle sensors: 5. RAF particle sensors:

CN counter: TSI-3010CN counter: TSI-3010 0.01 µm0.01 µm < d< dRDMARDMA 0.008 µm0.008 µm < d << d < 0.13 µm0.13 µmPCASPPCASP 0.1 µm0.1 µm < d << d < 3.0 µm3.0 µmSPP FSSP-100SPP FSSP-100 0.5 µm0.5 µm < d << d < 47 µm47 µm260X260X 4040 µmµm < d << d < 620 µm620 µm2D-C2D-C 50 50 µmµm < d << d < 800 µm800 µm2DP2DP 200 µm200 µm < d << d < 6400 µm6400 µm(HVPS(HVPS 200 µm200 µm < d < < d < 25600 µm)25600 µm)


6. RAF radiation6. RAF radiation UV/Vis/IR up/down fluxes (Eppley)UV/Vis/IR up/down fluxes (Eppley)Remote sky and surface temperature (Heimann)Remote sky and surface temperature (Heimann)

SABLSABL

Crew issues (19 total):Crew issues (19 total):

2 pilots + 1 flight engineer2 pilots + 1 flight engineer PIPICVICVI CCNCCNPeroxidesPeroxides Giant NucleiGiant NucleiRAF techRAF techDMSDMS SO2SO2Ozone, COOzone, CO 2D-S2D-SFast FSSP, X-probeFast FSSP, X-probe Phased dopplerPhased dopplerTASTAS

WavelengthsWavelengths 1064 nm and 532 nm1064 nm and 532 nm

Vertical resolutionVertical resolution 3.75 m3.75 m

Pulse repetition freq.Pulse repetition freq. 20 Hz20 Hz

Along track resolutionAlong track resolution 5 m (at 100 m/s)5 m (at 100 m/s)

Sample volume sizeSample volume size 20 cm x 3 m at 1 km20 cm x 3 m at 1 km

Eye-safetyEye-safety Beyond 1 km rangeBeyond 1 km range

Minimum rangeMinimum range About 400 mAbout 400 m

Pointing directionsPointing directions Up or downUp or down

SABL: Scanning Aerosol Backscatter Lidar

Air Sample InletsAir Sample Inlets

counterflow virtual impactor

anti-iced diffusing inlet

SCAIflush

Aft-facing

Air Sample Inlet – Lasagna pan

Network, serial data, analog, video

Investigator instruments - mount in RAF racks, PMS cans or pod - requirements for safety and flight worthiness

ATD can provide design & fabrication support

RAF data analysis software – RAF data analysis software – free !free !

Flight trackFlight track

Particle size distributionsParticle size distributions

Particle imagesParticle images

C-130 DataC-130 Data

Data acquisition• Network on aircraft• Analog, serial, special• 1 Hz – 10 kHz

Real-time display • ION (web-based)

Data analysis software - free ! http://raf.atd.ucar.edu/Software/index.html

Data archives JOSS - http://www.joss.ucar.edu/ ATD/RAF - http://raf.atd.ucar.edu/

flight schedule and staff limitations hardpoint allocation and cabin layout time synchronization...

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