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Flight plans TT8 document - available on the web: http://www.env/leeds.ac.uk/~doug/tt8/. Dakar Ouagadougou Niamey. ? D/F20 Niamey ? Geophysica (M55) Dakar ?.

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Flight plans

TT8 document - available on the web:

http://www.env/leeds.ac.uk/~doug/tt8/


Dakar

Ouagadougou

Niamey

? D/F20 Niamey ? Geophysica (M55) Dakar ?


M55 – 3 local flights funded and 1 from CNES, but relying on EUFAR funding – decision end April.

Hangar renovation v. expensive so now local AMMA rep negotiating.

If Ouaga is a NoGo – Niamey is not an alternative

Dakar could be revisited (logistically and scientifically) but time is short.

Visit to Oauga in April – involving Jan.

If Geophysica does not go to Ouaga, can D/F20 go to Niamey ? Same number of aircraft as in SOP2a1 for military hangar

– but people (15) / offices may be a problem.


ATR – some EMC checks and test flying of instruments has taken place – continuing through April and May

Permission to fly only below 10,000ft, and not in turbulence

.

F/F20 – EMC tests in progress.

Chemistry to be installed and test through April, then role change for first AMMA deployment.

Communication with scientists on Falcon. Currently the only way is through the pilots.

Communication with ATC in W. Africa during SOP0 was often difficult.


SOP1-a, SOP2-a1 taken place – continuing through April and May

I1.1: Inter-tropical front and heat low surveys

F/F20, ATR, D/F20


SOP1-a, SOP2-a1 taken place – continuing through April and May

I1.2: Surface-atmosphere-aerosol:

Squall-line relatedaerosol emissions surveys

F/F20, ATR


SOP1-a, SOP2-a2 taken place – continuing through April and May

I1.3: North-South ‘land-ocean-atmosphere

interactions’ surveys

F/F20, ATR, 146


24 kft / FL240 taken place – continuing through April and May

~ 400 hPa

45 min ~ 270 km

24 mins @ 1000 ft/min

~ 1 hour

~ 5,000 ft

~ 5,000 ft

~ 20 mins

500 ft

45 min ~ 270 km

Flight duration excluding transits: 3h 34mins

SOP2-a2

I1.4: Surface-atmosphere: Land-atmosphere interactions

146


SOP2-a2 taken place – continuing through April and May

I1.5: Surface-atmosphere: Land-atmosphere interactions

146


SOP2-a2 taken place – continuing through April and May

I1.6: Surface-atmosphere: Land-atmosphere interactions

146, D/F20


SOP2-a2 taken place – continuing through April and May

I1.7: Aerosol mixing and hygroscopicity

ATR


SOP2-a2, SOP2-a1 taken place – continuing through April and May

I2: Dynamics and Chemistry of MCSs

F/F20, ATR, D/F20, M55, 146


SOP2-a2 taken place – continuing through April and May

I2: Dynamics and Chemistry of MCSs

F/F20, ATR, D/F20, M55, 146

T = time that MSC is in target area – Niamey or Djougou regions

Take off times

F/F20 T-2h – 1 flight

M55 T-2h – 1 flight

D/F20 T-1h – 1 flight (focus on anvil)

ATR and 146 – 2 flights: 1 before and 1 after the MCS

Do we need both the 146 and ATR to fly before and after ?

ATR limited to day light flying –so only 146 if dark

Prefer daylight for photochemistry and Djougou

ATR will need 3 flights and refuel at Niamtougou for Djougou

Need to create some time lines for different times of T.

146 will try to combine these flights with I1.4


SOP2-a2 taken place – continuing through April and May

I3.1: Impact of MCSs on TTL composition

D/F20, M55

Similar to I2 but looking at outflow further away from the MCSs

If possible D/F20 and M55 would target outflow from an MCS that had picked up air from an area sampled by other aircraft on a previous day.


SOP2-a2 taken place – continuing through April and May

I3.2: Large scale impacts of deep convection on LRT

F/F20, D/F20, M55, 146

Large scale outflow in between MCSs

146 will focus on mid level flow (AEJ)

Other aircraft at higher altitudes

N-S transects

Aim to fly on the same day along the same meridian

or parallel displaced by longitude

M55 flight coordinated with the CALIPSO over pass (13:00).


SOP2-a2 taken place – continuing through April and May

I?: CALIPSO over pass

M55

M55 flight coordinated with the CALIPSO over pass (13:00).


SOP2-a3 taken place – continuing through April and May

I4.1: Horizontal microphysical variability of MCS anvils

F/F20


SOP2-a3 taken place – continuing through April and May

I4.2: Vertical microphysical variability of MCS anvils

F/F20


SOP2-a2 taken place – continuing through April and May

I6: Intercomparison

F/F20, ATR, D/F20, M55, 146

D/F20, M55

D/F20, 146 – pre-flight briefing between pilots

146, ATR

146, F/F20 – HCHO, dropsondes, link between ATR and F/F20

ATR, F/F20 – do pilots have experience in formation flying ?

Chemistry - 15 minute runs at 3 altitudes in clear air

Dynamics – into, with and across wind


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