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

• Published in: Atmospheric Measurement Techniques
• Main Authors: Mevi, Gabriele, Muscari, Giovanni, Bertagnolio, Pietro Paolo, Fiorucci, Irene, Pace, Giandomenico
• Format: Text
• Language: English
• Published: 2019
• Subjects: Arctic; Greenland; New Ground; Thule Air Base; Thule Air; Thule
• Online Access: https://doi.org/10.5194/amt-11-1099-2018; https://amt.copernicus.org/articles/11/1099/2018/

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, dep...