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The UMIST Cessna

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The UMIST Cessna – PowerPoint PPT presentation

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Title: The UMIST Cessna


1
The UMIST Cessna
2
Aircraft Performance
  • The UMIST Cessna offers great flexibility in
    flight planning
  • equipment fit
  • route
  • altitude

3
Standard Equipment
  • Position
  • Heading
  • Pitch angle
  • Bank angle
  • Pressure altitude
  • Radar altitude (height above terrain up to 750m)
  • Indicated air speed
  • True air speed
  • Vertical accelerometer
  • Measurements
  • Rosemount temperature - 1 Hz
  • Reverse flow temp - 1 Hz
  • Michell Hygrometer dewpoint temperature - 5s
  • New Development
  • Javad Differential GPS
  • 20 Hz
  • ground heading and track
  • altitude
  • aircraft attitude - pitch, roll, heading
  • ideal for future use with UMIST turbulence probe

4
Additional Equipment
  • Trace Gases
  • Scintrex LMA-4 NO2/NOx
  • 4 Hz response
  • Scintrex LOz O3
  • 5 Hz response
  • LiCor 6210 H2O/CO2
  • 5 Hz response

LiCor
LMA-4
5
Additional Equipment
  • TDL - H2O
  • University of Aberystwyth
  • compact (for a TDL!)
  • better than 1 Hz response
  • relative error 1-5 ppm
  • can be tuned boundary layer work

The plot to the left shows a LIDAR trace of
cirrus cloud (top plot), and the TDL data for
relative humidity and mixing ratio variation
6
Available Equipment
  • Particle Counters
  • PMS ASASP-X
  • 0.1-3 µm diameter
  • 32 size bins sampled at 20 Hz
  • TSI 3010
  • total condensation particle count
  • adjustable cut off from 10-120 nm
  • TSI 3025
  • total condensation particle count
  • lower cut-off 3 nm

ASASP-X
Cut-off diffusion filter
pump
TSI 3010
7
Available Equipment
  • Miscellaneous
  • FSSP
  • large particle/cloud droplet size 1-47 µm
    diameter
  • 20 Hz
  • KT-19 surface IR thermometer
  • Eppley Radiometers
  • up and down facing

KT-19
8
Previous Campaigns
SASUA, Edinburgh
NOx and O3 are anti-correlated in the plume
NE wind carries pollutants downwind of Edinburgh,
clearly showing dispersing plume
9
Previous Campaigns
SASUA, Edinburgh
Comparison of particle concentration as a
function of location shows the blocking effect of
terrain
10
Previous Campaigns
PUMA, Birmingham
Even small-scale features, such as the heat
island effect immediately downwind of
Kiddermister, can be seen
Evolution of the urban plume across the
Birmingham conurbation is clearly observed
11
Previous Campaigns
PUMA, Birmingham
Where CAA restrictions and atmospheric conditions
allow, soundings can be made, up to 3000 m (10
000 ft)
12
CSIP - Cessna Range
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