Using ground-based GPS to characterize atmospheric turbulence
Artikel i vetenskaplig tidskrift, 2009

A new method for measuring and studying atmospheric turbulence is presented. The method uses data from a local network of GPS receivers. The GPS data are processed in a way that assures that the estimated zenith total delays (ZTD) contain the effects of atmospheric turbulence present in the GPS observations. The turbulence is characterized using the spatial structure function for the atmospheric zenith total delay. The structure function is modeled by an expression with unknown parameters which contains information about the turbulence. The unknown parameters are solved by a fit to the observed ZTD variations. We apply the method to GPS data from the Yucca Mountain network, Nevada, USA. The results show that the magnitude of the turbulent variations in that region have a strong seasonal dependence, with much larger variations in summer compared to winter.

Författare

Tobias Nilsson

Chalmers, Institutionen för radio- och rymdvetenskap, Rymdgeodesi och geodynamik

J.L. Davis

Harvard-Smithsonian Center for Astrophysics

E.M. Hill

Harvard-Smithsonian Center for Astrophysics

Geophysical Research Letters

0094-8276 (ISSN)

Vol. 36 16 L16807

Ämneskategorier

Meteorologi och atmosfärforskning

Annan geovetenskap och miljövetenskap

DOI

10.1029/2009GL040090