SAFIRE-A: assessment of measurement capabilities and future developments (Abstract/Poster in atti di convegno)

Type
Label
  • SAFIRE-A: assessment of measurement capabilities and future developments (Abstract/Poster in atti di convegno) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Alternative label
  • G. Bianchini, U. Cortesi, L. Palchetti, B. Carli (2004)
    SAFIRE-A: assessment of measurement capabilities and future developments
    in European Geosciences Union, 1st General Assembly, Nizza, Francia, 25-30 Aprile 2004
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • G. Bianchini, U. Cortesi, L. Palchetti, B. Carli (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#titoloVolume
  • 1st EGU General Assembly (literal)
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  • 6 (literal)
Rivista
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  • Geophysical Research Abstracts, Vol. 6, EGU-04-J-07492, European Geosciences Union 1st General Assembly, Nice, France, 25-30 April 2004. (literal)
Note
  • Poster (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto di fisica applicata \"Nello Carrara\" - CNR (literal)
Titolo
  • SAFIRE-A: assessment of measurement capabilities and future developments (literal)
Abstract
  • The SAFIRE-A airborne spectrometer, provides an unique combination of different measuring schemes and parameters, including limb, nadir and space direction line of sight, variable spectral resolution up to 0.004 cm-1, two spectral channels in the region from 10 to 250 cm-1, with bandwidth from 1 to several cm-1, and the possibility of operating both atmospheric radiance and polarization measurements. In the high spectral resolution radiance operating mode, SAFIRE-A has been deployed in several campaigns, amongst which a mid-latitude and a polar campaign aimed to the validation of MIPAS-ENVISAT and the APE-GAIA Antarctic campaign with the objective of the study of the southern polar vortex region. In these campaigns the instrument provided 2-D maps of volume mixing ratio of trace atmospheric constituents with higher spatial resolution with respect to spaceborne instruments, thus providing a valuable tool for validation and for study of local phenomena involved in atmospheric chemistry. An accurate estimation of the vertical resolution has been performed, based on calculation of the averaging kernel and tested by comparing SAFIRE-A limb profiles with simultaneously measured in-situ data, as well as of other instrument parameters. Moreover, the combination on a single instrument of the capabilities for high spectral resolution measurements and for detection of atmospheric polarization effects can offer an unique opportunity to investigate processes that require a precise characterization both of the chemical field and of clouds and particles distribution and properties, such as Polar stratospheric Clouds formation and denitrification mechanisms occurring in the polar lower stratosphere. As a future development, lower spectral resolution (0.1 cm-1) and broadband measurement capabilities of a Nadir looking configuration of the instrument could be exploited to retrieve information on structure and properties of high cirrus clouds and to make a contribution to the the study of their role in both Earth's radiation budget and upper tropospheric chemistry. In this framework an interesting possibility is the synergy that is provided by an instrumentation package including also a broadband nadir-looking spectroradiometer operating in the 100-1100 cm-1 region, of which a prototype has been developed recently by our group. (literal)
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