Aim to study the microphysical and radiative properties of urban aerosol around the UK. Flights upwind and downwind of major urban aerosols sources will be flown to characterize the aerosol and compare distributions with Mesoscale model.

Equipment: Core Consoles, Core Chemistry, Cloud Physics, AVAPS, CCN/CNC, INC, AMS, VACC, Nephelometer/PSAP/Filters, Wet-Nephelometer, SWS/shims, Radiometeters 1&2(ARIES,deimos,marss,irr), pan/orac, casi/atm (desirable)

Campaign Specialist - J Crawford
PIs - J Haywood (Met Office) This email address is being protected from spambots. You need JavaScript enabled to view it..

A series of Met Office winter experiments to be flown from Cranfield November 2006 - January 2007.

PI - J Taylor (Met Office) This email address is being protected from spambots. You need JavaScript enabled to view it..

THAW - Temperature, Humidity And Winds near the tropopause, 10 hours, Nov-Dec 2009, or Feb-Mar 2010

THAW is a proposal for flights in the tropopause region, its scientific objectives are to:

  • Measure fine-scale vertical temperature structure in the vicinity of the tropopause, to test a model for VHF radar reflection being developed at Manchester.
  • Compare wind and turbulence measurements with the MST radar, to better enable quantitative derivation of turbulence parameters from the radar echo spectra.
  • Characterise the performance of the Buck research CR-2 hygrometer in the upper troposphere, with special emphasis on measuring supersaturation in the vicinity of the cirrus clouds.

Instrument fit: Core Consoles: SAW, Core Chemistry. Cloud Physics: (2D Cloud, PCASP, FastFSSP, SID2, CIP25, CDP). FWVS, CVI.

PI: Prof. Geraint Vaughan (NCAS University of Manchester) This email address is being protected from spambots. You need JavaScript enabled to view it..

T-NAWDEX (Pilot) - THORPEX - North Atlantic Waveguide and Downstream impact Experiment, 20 hours, Nov-Dec 2009 or Feb-Mar 2010.

This T-NAWDEX- Pilot project aims to measure the thermodynamic properties of structures where cloud and water vapour processes are most active within extratropical weather systems.
In particular the T-NAWDEX Pilot project will:

  • Test our ability to observe the thermodynamic properties of air (including gradients) within frontal systems in sufficient detail to estimate latent heat release, cloud microphysics, mixing and potential vorticity generation.
  • Further test the abilities of BAe146 to measure turbulent quantities (heat, moisture and momentum fluxes) in the atmospheric boundary layer.
  • Test typical sorties through developing fronts and warm conveyor belts embedded within baroclinic waves, in preparation for the international multi-aircraft T-NAWDEX experiment and any future research flying within frontal cyclones in the vicinity of the UK.

Instrument fit: Core Consoles. AVAPS, SAW, BBRs, Mini Lidar, Core chemistry. WAS. Cloud Physics: 2D-C, 2D-P, PCASP, Fast FSSP, SID2, SID3, CIP25, CIP100, CDP, FWVS, CCN Counter, TSI -3025- CPG, FWVS. Nephelometer, PSAP, Filters, Bag Sampling.

PI: Dr. Ian Renfrew (UEA) This email address is being protected from spambots. You need JavaScript enabled to view it..

Science Objectives:  In our recent paper (Read et al., Nature, 2008) we showed definitively, for the first time, that halogen chemistry in the marine boundary layer has a profound impact on the concentration of climate relevant parameters such as 03 and OH.

NERC has funded a series of intensive studies at the field site hat led to the original paper. These intensive campaigns involve enhancing the ground based observational capabilities at the Cape Verde observatory with the addition of free radical (OH, HOz, Oz) measurements.
The primary aims of TROMPEX are to determine the geographical extent of halogen perturbation and the speciation of oxidised nitrogen in this region. We will do this by enhancing the observational dataset during one of these intensives to give an increased understanding of the composition of the air both above and upwind of the field site.
Specifically we will measure the gradient of 03, VOCs, organohalogens, NOx and PAN between the mid-latitudes and the tropics.

Operational Area: UK -> Canaries -> Cape Verde and operation around CV to 200km of African coastline
Science Flights: 26 hours
Instruments: Core Console, Core Chemistry, CCN/CPC/FWVS, Nephelometer/PSAP/Filters, AMS, BBRs/Photometers, WAS/PAN
Lead Pilot - Alan Foster
Lead Flight Ops - Steven Douglas
PI - Lucy Carpenter (University of York)  This email address is being protected from spambots. You need JavaScript enabled to view it.