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Details of Award

NERC Reference : NE/B50429X/1

Airborne measurements of the FIR radiative properties of clear-skies and cirrus clouds on the FAAM BAe 146.

Grant Award

Principal Investigator:
Professor JC Pickering, Imperial College London, Physics
Co-Investigator:
Dr H Brindley, Imperial College London, Physics
Co-Investigator:
Professor JE Harries, Imperial College London, Physics
Science Area:
Atmospheric
Overall Classification:
Atmospheric
ENRIs:
Global Change
Science Topics:
Water In The Atmosphere
Radiative Processes & Effects
Upper Atmos Process & Geospace
Climate & Climate Change
Abstract:
Much effort has gone into modelling studies investigating predictions of climate change. Climate change occurs if the balance between heating (energy from the sun) and cooling (emission to space in the infrared) is disturbed. The processes involved in heating and cooling are controlled by a wide range of interactions. In order to be reliable and meaningful, models simulating the atmosphere and climate should be based on real observations, and this is the case in the near-IR and visible range of the spectrum. Until recently there were no measurements in the far-IR which has been found to be crucial to the understanding of emission processes in the atmosphere, as a significant proportion of energy is emitted from the earth to space in this spectral region. The role of clouds and their interaction with the radiation field in the far infrared needs urgent study; particularly important are cold, high cirrus clouds and their emission, and these are notoriously difficult to simulate. The Imperial College TAFTS (Tropospheric Airborne Fourier Transform Spectrometer) instrument is the first successfully to record spectra in the far infrared onboard an aircraft, providing much needed real observations. We are proposing to take part in the EAQUATE campaign flights with the new Met Office BAe146 FAAM (Facility for Airborne Atmospheric Measurements), specifically to look at clear and cloudy sky in the UK. The spectra, in conjunction with in-situ microphysics will enable studies of cirrus cloud scattering in the infra red to be undertaken. These will allow a validation of current cirrus models to be carried out, which are currently not based on any real observational data in the far-IR. This is expected to have a significant impact on reliability of models of climate change and understanding of radiative transfer in the Earth's atmosphere.
Period of Award:
15 Dec 2004 - 14 Jun 2006
Value:
£118,807
Authorised funds only
NERC Reference:
NE/B50429X/1
Grant Stage:
Completed
Scheme:
Standard Grants Pre FEC
Grant Status:
Closed
Programme:
Standard Grant

This grant award has a total value of £118,807  

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FDAB - Financial Details (Award breakdown by headings)

Total - StaffTotal - T&STotal - Other CostsTotal - Indirect CostsTotal - Equipment
£67,318£5,286£2,380£30,966£12,856

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