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SPETTROSCOPIA

FISICA AMBIENTALE 2. SPETTROSCOPIA. Antonio Ballarin Denti a.ballarindenti@dmf.unicatt.it. SPETTROSCOPIA AMBIENTALE. A) Tipi di spettroscopie. Risonanza magnetica nucleare (NMR) Electron spin resonance (ESR) Spettroscopia rotazionale Spettroscopia vibrazionale Spettroscopia Raman

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SPETTROSCOPIA

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  1. FISICA AMBIENTALE 2 SPETTROSCOPIA Antonio Ballarin Denti a.ballarindenti@dmf.unicatt.it

  2. SPETTROSCOPIA AMBIENTALE A)Tipi di spettroscopie • Risonanza magnetica nucleare (NMR) • Electron spin resonance (ESR) • Spettroscopia rotazionale • Spettroscopia vibrazionale • Spettroscopia Raman • Spettri elettronici • Spettroscopia a raggi X

  3. Spessore delle linee • Allargamento omogeneo Si definisce “ full width at half – maximum ”: ( FWHM)  = tempo di vita dello stato eccitato • Allargamento non omogeneo ( EFFETTO DOPPLER )

  4. SPETTROSCOPIA AMBIENTALE EMOL = EEL + EVIB + EROT

  5. The electromagnetic spectrum and the classification of various spectral regions

  6. La missione UARS UARS measurements on wind, temperature and atmospheric composition. Shown is the altitude range that the instruments reach for the measured parameters

  7. Gli strumenti della missione UARS

  8. A simplified scheme of the middle atmosphere’s chemistry

  9. Limb-viewing solar occultation geometry. HALOE uses light from the sun, but some instruments on other satellites can use the light from bright stras as well

  10. Calculated 30 km absorption spectrum in HALOE’s HCl channel. The tickmarks at the top show the position of the HCl lines. The other lines are mainly due to CH4

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