2.4 SOP Group Membership: Reeves (chair), Parker, Taylor, Pyle. Reports to SSC and Data Group This group will coordinate the deployment of instruments from OWP 4-5 for the SOP period of AMMA. In regard to the SOP observations, the group will be responsible for liaison with other research groups and funded projects within AMMA International. The SOP group will also be responsible for the coordination of OWP3 enhanced observations (radiosondes, sodars and tethered balloons) with the other SOP observations. In the case of OWP4 (Aircraft measurements), it will be the responsibility of the SOP group to set the procedures for flight planning. The final decision-making on flight plans will be made by a sub-group, of Parker, Reeves and Taylor. The SOP group will be responsible for coordination of local facilities for the whole consortium during the SOP period (e.g. local transport, laboratories, communications in Africa, forecasting etc.). The SOP group will make recommendations on Health and Safety issues for the SOP activities.

OWP4: Aircraft Observations Reeves, Stewart, Parker, Coe, Heard, Lewis, McQuaid, Monks, Morse, Pyle, Taylor FAAM BAe-146

Flight hours, base, dates As agreed by the FAAM Operations Committee (Dec ) Monday 26th June:2 weeks 146 on ground at Cranfield for instrument fit Monday 10th July: 1 week test flying out of Cranfield Monday 17th July: 6 weeks detachment (until Friday 25th August) SOP2/3 BUT Flight Hours: NERC = 94EU = 30Total = 124 Transits = 14Tests = 10Detachment = 100 Detachment base: Niamey, Niger (We wish to be in this region of WA although the precise location will depend on logistics and recce.)

SOP2/3 Proposed Flight Patterns 1. Stacked legs from the lowest possible levels in the CBL to the ceiling (35kft). Immediately ahead of MCS and over the 3-4 days following, during which the soil moisture will equilibriate. Early morning in stratified monsoon layer and later in developed CBL. In northern quadrilateral of AMMA, centred on Niamey, with high frequency radiosoundings. Primarily for dynamics objectives although would provide useful data on the composition in different air masses and surface characteristics.

SOP2/3 Proposed Flight Patterns 2. Long straight and level runs mostly in the CBL. Characterise the emissions from different vegetation types. North-south legs across contrasting vegetation. East-west legs to characterise specific climatic, vegetation and surface state zones. Primarily for composition, but also surface characteristics for dynamics.

SOP2/3 Proposed Flight Patterns 3. Stacked legs upwind and downwind of MCS (similar to 1) Characterise the inflow and outflow of the MCS. Possibility for coordinated flights – one aircraft in inflow and one in out flow. Also one aircraft flying at higher altitude releasing drop sondes and the other probing layers below. Composition and dynamics objectives.

SOP2/3 Proposed Flight Patterns Additional Flight Added to AMMA-EU WP Long straight and level runs N-S across the AEJ at different longitudes. One N-S leg should be off the coast. Possibility for coordinated flights – one aircraft upwind and one downwind Suitcase flights to Dakar. Flight lengths Primarily for composition objectives.

Storm motion SOP C: Flight plan n°1 (Small MCS, < 1-2°) MCS dynamics and chemistry / combined flights

Flight plan n°2 (Large MCSs) STEP 1: before the MCS passage - background cond. Lat. & vert. gradient F/F20 UK/B146 F/ATR42 Storm motion

Flight plan n°2 (Large MCSs) STEP 2: After the MCS passage - perturbed cond. Lat. & vert. gradient F/F20 UK/B146 F/ATR42 Storm motion

Flight plan n°3: Long Range Transport D/F20 F/F20 UK/B146

BANIZOUMBOU M’BOUR CINZANA DJOUGOU LAMTO AMMA Study areaChemistry and Aerosols supersitesSecondary sites CAPE-VERDE AMMA SOP – Meeting Paris – 07/01/05

Aircraft obs. UK/BAE-146, F/ATR42, F/F20 HOx, H2O, NOx, VOCs, O3, CO at Djougou Instrumented van [O 3 ] and [CO] in BL Emission NOx & isoprène Flux O 3 near Djougou Doppler radar RONSARD lightning detection (field mills + 3D) Cotonou O 3 soundings Parakou lightning detection (field mills) Observational strategy for chemistry during EOP and wet SOPs (aircrafts) Aircraft obs. DE/F20 H2O, NOx, VOCs, O3, CO AMMA SOP – Meeting Paris – 07/01/05

Flying restrictions clearance for certain countries KILN geographic exclusions – except air corridors navigation Logistical requirements ? X X X X X X

SOP meeting Weeks beginning 27 June or July 4 International meeting ? UEA ?

Non-deiced/deiced thermometers 5 General Eastern 5 GPS 5 Cruciform GPS 5 Video cameras (forward, rearward, upward, downward) 5 SATCOM-H (phone/fax/e- mail/data) 4 Radar altimeter 5 Radar 5 5-port turbulence probe 5 Heimann IR thermometer (SST) 4 AVAPS dropsondes 5 BBR upper - pyrgeometer 5 BBR upper - pyranometer clear 5 BBR upper - pyranometer red 5 BBR upper - photometer JNO2 5 BBR upper - photometer JO1D 5 BBR lower - pyranometer clear5 BBR lower - pyranometer red5 BBR lower - photometer JNO25 BBR lower - photometer JO1D5 ATM3 ARIES4 DEIMOS4 MARSS4 FastFSSP4 2D Cloud4 PCASP5 CCN4 CN5 SPEC-CPI4 FWVS4 Nephelometer5 Particle Soot Absorption Photometer5 Filters4 INC2 AMS ADA Ozone5 CO5 SO22 PAN4 Peroxide4 Formaldehyde4 PERCA5 NOxy5 Near-IR TDLAS4 ORAC5 VACC3 LIDAR5 Whole Air Sampling5 FAGE5 PTRMS 5 SOP2/3 Instruments Graded 1-5, 5 being essential for at least one objective Not enough space