Figure 8From: Sea level measurements using multi-frequency GPS and GLONASS observationsSensitivity of GNSS sea level results for wind speed. The tide gauge error, i.e., the difference between the reference pressure tide gauge record and the GNSS-derived sea level, for GPS L1 versus wind speed. Results for the SNR analysis are presented as blue diamonds, and the results for the phase delay analysis are presented as green circles. Wind speed is regarded as an indicator of sea surface roughness.Back to article page