Table of Contents
Dataset Papers in Geosciences
Volume 2013 (2013), Article ID 795749, 5 pages
http://dx.doi.org/10.7167/2013/795749
Dataset Paper

Bending Angle and Temperature Climatologies from Global Positioning System Radio Occultations

1DTU Space, National Space Institute, 2100 Copenhagen, Denmark
2The Abdus Salam International Centre for Theoretical Physics (ICTP), 34151 Trieste, Italy

Received 29 January 2013; Accepted 7 March 2013

Academic Editors: T. Chai, A. Heemink, and P. J. Michaels

Copyright © 2013 R. Biondi and T. Neubert. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The Global Positioning System (GPS) Radio Occultation (OR) technique provides estimates of atmospheric density, temperature, and water vapour content with high vertical resolution, global coverage, and high accuracy. We have used data acquired using this technique in the period 1995–2009 to create a reference climatology of radio occultation bending angle and atmospheric temperature which are used for meteorological studies. The bending angle is interesting because it is a direct measurement and independent of models. It is given with one-degree spatial resolution and 50-meter vertical sampling. In addition, we give the temperature climatology with one-degree spatial resolution and 100-meter vertical sampling. This dataset can be used for several applications including weather forecast, physics of atmosphere, and climate changes. Since the GPS signal is not affected by clouds and the acquisitions are evenly distributed in the globe, the dataset is well suited for studying extreme events (such as convective systems and tropical cyclones) and remote areas.