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Proceedings Paper

Satellite- and ground-based atmospheric water vapor measurements: a comparative study
Author(s): Vincenzo Cuomo; V. Berardi; Paolo Di Girolamo; Francesco Esposito; Gelsomina Pappalardo; Nicola Pergola; Carla Pietrapertosa; Filomena Romano; Carmine Serio; Nicola Spinelli; Valerio Tramutoli; Raffaele Velotta
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Paper Abstract

Simultaneous water vapor measurements from satellite and ground based systems, have been performed in Napoli and Potenza throughout the last two years. Night-time water vapor profiles were provided by two lidar systems based on the Raman technique. The lidar system in Napoli, Italy is based on Xe:F excimer laser ((lambda) equals 351 nm), the system in Potenza, Italy is based on a Nd:YAG laser operating both on the 2nd (532nm) and 3rd (355nm) harmonics. Precipitable water (PW) measurements were provided during daytime by a grating spectrometer observing solar spectral irradiance at differentially absorbing channels in the wing of (rho) (sigma) (tau) water vapor band. Night and daytime PW measurements were provided using TOVS and AVHRR packages flying on NOAA satellites. Split window technique on two differentially absorbing AVHRR channels in the 11 micrometers region has been used in order to provide PW amounts with a spatial resolution of approximately 2 Km. The standard ITPP processing for TOVS package has been used in order to obtain PW estimates at lower spatial resolution (about 40 Km). Night and daytime radiosonde measurements have been performed during the last part of the campaign. All the simultaneous independent measurements have been analyzed and the results compared.

Paper Details

Date Published: 20 September 1995
PDF: 12 pages
Proc. SPIE 2506, Air Pollution and Visibility Measurements, (20 September 1995); doi: 10.1117/12.221038
Show Author Affiliations
Vincenzo Cuomo, Univ. della Basilicata (Italy)
V. Berardi, Univ. degli Studi Federico II (Italy)
Paolo Di Girolamo, Univ. della Basilicata (Italy)
Francesco Esposito, Univ. degli Studi Federico II (Italy)
Gelsomina Pappalardo, Univ. della Basilicata (Italy)
Nicola Pergola, Univ. della Basilicata (Italy)
Carla Pietrapertosa, Univ. della Basilicata (Italy)
Filomena Romano, Univ. della Basilicata (Italy)
Carmine Serio, Univ. della Basilicata (Italy)
Nicola Spinelli, Univ. della Basilicata (Italy)
Valerio Tramutoli, Univ. della Basilicata (Italy)
Raffaele Velotta, Univ. degli Studi Federico II (Italy)


Published in SPIE Proceedings Vol. 2506:
Air Pollution and Visibility Measurements

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