Comparison of atmospheric humidity profiles obtained by COSMIC satellites and radiosonde over Cyprus

C. Oikonomou; H. Haralambous; S. Perdikou

doi:10.1117/12.2028424

5 August 2013 Comparison of atmospheric humidity profiles obtained by COSMIC satellites and radiosonde over Cyprus

C. Oikonomou, H. Haralambous, S. Perdikou

Proceedings Volume 8795, First International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2013); 87951F (2013) https://doi.org/10.1117/12.2028424
Event: First International Conference on Remote Sensing and Geoinformation of Environment, 2013, Paphos, Cyprus

Abstract

The determination of the atmospheric humidity profile has been traditionally conducted on a relatively local basis by ground-based radiosondes which are special types of instruments used for monitoring atmospheric parameters, such as temperature, humidity, wind and pressure at various altitudes in the atmosphere. An alternative modern technique for measuring atmospheric profiles is the GPS (Global Positioning System) Radio Occultation conducted by means of signals transmitted by GPS satellites (orbiting the Earth at ~ 20200 km) and received by LEO (Low Earth Orbit) satellites. The profiles based on this technique are inferred indirectly exploiting radio signals crossing the Earth’s troposphere and undergoing refraction. The FORMOSAT-3/COSMIC (Constellation Observing System for Meteorology, Ionosphere, and Climate) satellite constellation is such a system based on 6 satellites (at an orbit of ~ 800 km) and has been in operation since 2006 providing excellent spatial coverage with more than 2000 occultations per day. In this paper a comparison of the atmospheric humidity profiles over Cyprus is investigated in terms of these two different measurement techniques, within a period of six years.

Citation Download Citation

C. Oikonomou, H. Haralambous, and S. Perdikou "Comparison of atmospheric humidity profiles obtained by COSMIC satellites and radiosonde over Cyprus", Proc. SPIE 8795, First International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2013), 87951F (5 August 2013); https://doi.org/10.1117/12.2028424

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KEYWORDS

Humidity

Water

Satellites

Global Positioning System

Climatology

Earth's atmosphere

Meteorological satellites

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