VESPA-22: a ground-based microwave spectrometer for long-term measurements of polar stratospheric water vapor

• Published in: Atmospheric Measurement Techniques
• Main Authors: G. Mevi, G. Muscari, P. P. Bertagnolio, I. Fiorucci, G. Pace
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2018
• Subjects: Environmental engineering; TA170-171; Earthwork. Foundations; TA715-787; Arctic; Greenland; New Ground; Thule Air Base; Thule Air; Thule
• Online Access: https://doi.org/10.5194/amt-11-1099-2018; https://doaj.org/article/677202d0389c454cb24a22350d8cd95d

The new ground-based 22 GHz spectrometer, VESPA-22 (water Vapor Emission Spectrometer for Polar Atmosphere at 22 GHz) measures the 22.23 GHz water vapor emission line with a bandwidth of 500 MHz and a frequency resolution of 31 kHz. The integration time for a measurement ranges from 6 to 24 h, depen...