Water level variations in estuaries, wet lands and rivers H5.2 Water level measurements H5.2a Water Principles of operation of Select appropriate type of water level level gauges various types of water level gauge technology according to survey gauges including pressure project operations. (vented and unvented), GNSS (A) buoys, float, radar, acoustic Install, level to a vertical reference, and sensors and tide poles. calibrate a water level gauge while Installing gauges, evaluating sources of errors and applying establishment and levelling of appropriate corrections. associated survey marks H5.2b Tidal Evaluate and select appropriate sites for Determination of tide measurement water level monitoring. correctors from water level observations Select water level gauge parameters for (A) Networks of level gauges logging data, data communication, data Use of satellite altimetry in download and for network operation with determining levels appropriate quality control measures. Uncertainties associated with H5.2c Assess and quantify the contribution of water level measurement Uncertainty in water level observations to uncertainties devices water level in survey measurements. Uncertainties associated with duration of observations. Assess the uncertainty in water level (I) Uncertainties associated with observations due to duration of spatial separation of water observations and distance from water level measurements. level gauge. H5.3 Tide modelling H5.3a Harmonic Harmonic constituents from Compute standard harmonic constituents analysis astronomical periods from astronomical periods. Harmonic coefficients and residuals. Derive harmonic coefficients and (I) Water level time series residuals from times series observations observations using Fourier analysis.
Water level variations in estuaries, wet lands and rivers H5.2 Water level measurements H5.2a Water level gauges (A) Principles of operation of various types of water level gauges including pressure (vented and unvented), GNSS buoys, float, radar, acoustic sensors and tide poles. Installing gauges, establishment and levelling of associated survey marks Determination of tide correctors from water level observations Networks of level gauges Use of satellite altimetry in determining levels Uncertainties associated with water level measurement devices Uncertainties associated with duration of observations. Uncertainties associated with spatial separation of water level measurements. Select appropriate type of water level gauge technology according to survey project operations. Install, level to a vertical reference, and calibrate a water level gauge while evaluating sources of errors and applying appropriate corrections. H5.2b Tidal measurement (A) Evaluate and select appropriate sites for water level monitoring. Select water level gauge parameters for logging data, data communication, data download and for network operation with appropriate quality control measures. H5.2c Uncertainty in water level (I) Assess and quantify the contribution of water level observations to uncertainties in survey measurements. Assess the uncertainty in water level observations due to duration of observations and distance from water level gauge. H5.3 Tide modelling H5.3a Harmonic analysis (I) Harmonic constituents from astronomical periods Harmonic coefficients and residuals. Water level time series observations Compute standard harmonic constituents from astronomical periods. Derive harmonic coefficients and residuals from times series observations using Fourier analysis.
S-5A_Ed1.0.2-template.docx