L. Urquhart

Ray-traced slant factors for mitigating the tropospheric delay at the observation level

Marcelo C. Santos, L. Urquhart, F. Nievinski, 2012, Journal of Geodesy.

Atmospheric Pressure Loading and its Effects on Precise Point Positioning

Landon Urquhart, L. Urquhart, 2009 .

Troposphere Delay Modeling based on Numerical Weather Models

Marcelo C. Santos, P. Steigenberger, H. Schuh, 2011 .

Comparison of Ray-Tracing Packages for Troposphere Delays

Harald Schuh, Thomas Hobiger, Ryuichi Ichikawa, 2012, IEEE Transactions on Geoscience and Remote Sensing.

Assessment of troposphere mapping functions using three-dimensional ray-tracing

Landon Urquhart, Felipe G. Nievinski, Marcelo C. Santos, 2014, GPS Solutions.

Generation and Assessment of VMF1-Type Grids Using North-American Numerical Weather Models

Marcelo C. Santos, J. Böhm, L. Urquhart, 2014 .

SPARTN: The First Open GNSS Data Standard that Enables Safe and Accurate GNSS Localization for Automotive Applications

Landon Urquhart, Rodrigo Leandro, Kendall Ferguson, 2020 .

An analysis of multi-frequency carrier phase linear combinations for GNSS

Landon Urquhart, L. Urquhart, 2008 .

Global Assessment of UNB’s Online Precise Point Positioning Software

Richard B. Langley, Marcelo C. Santos, Landon Urquhart, 2014 .