Document Type
Article
Publication Date
3-1990
Digital Object Identifier (DOI)
https://doi.org/10.1029/GL017i003p00203
Abstract
Wet tropospheric path delay can be a major error source for Global Positioning System (GPS) geodetic experiments. We investigate strategies for minimizing this error using data from CASA Uno, the first major GPS experiment in Central and South America, where wet path delays may be both high and variable. We compared wet path delay calibration using water vapor radiometers (WVRs) and residual delay estimation, with strategies where the entire wet path delay is estimated stochastically without prior calibration, using data from a 270 km test baseline in Costa Rica. Both approaches yield centimeter-level baseline repeatability and similar tropospheric estimates, suggesting that WVR calibration is not critical for obtaining high precision results with GPS in the CASA region.
Rights Information
Was this content written or created while at USF?
No
Citation / Publisher Attribution
Geophysical Research Letters, v. 17, issue 3, p. 203-206
Copyright 1990 by the American Geophysical Union.
Scholar Commons Citation
Dixon, Timothy H. and Wolf, S. Kornreich, "Some Tests of Wet Tropospheric Calibration for the CASA Uno Global Positioning System Experiment" (1990). School of Geosciences Faculty and Staff Publications. 511.
https://digitalcommons.usf.edu/geo_facpub/511
