Unified Tidal Analysis and Prediction
Using the “UTide” Matlab Functions
- Designed specifically
to handle record times that are irregularly distributed and/or gappy.
- Suitable for
multi-year analyses: accurate nodal/satellite corrections are not limited
to record lengths shorter than 1-2 years.
- Can provide
easy-to-use and comprehensive diagnostics to aid the constituent selection
- Handles sea level
(amplitude and phase), or currents (current ellipse parameters), with
- Generates confidence
intervals based on spectra (FFT for regular times, Lomb-Scargle for irregular times) of the residuals between
the raw input and the harmonic fit.
- Incorporates the
robust L1/L2 solution method to minimize influence of outliers.
- Enables analysis of groups
of time sequences (such as records from an array of instruments, or from a
group of model gridpoints) with one m-function
- Builds on, and
integrates in to a common framework, the t_tide
(Pawlowicz et al 2002), r_t_tide
(Leffler and Jay 2009), and
"versatile" (Foreman et al 2009) approaches.
- Flexible interface
with mix-and-match choices of analysis configurations accessible by
arguments to m-functions.
- Download the m-files,
and the technical report / user’s manual describing them, from any of these
URI GSO PO ftp
File Exchange on Matlab Central: http://www.mathworks.com/matlabcentral/fileexchange/46523--utide--unified-tidal-analysis-and-prediction-functions
ResearchGate (m-files in “Supplementary Resources” at bottom): https://www.researchgate.net/publication/280722790_Unified_tidal_analysis_and_prediction_using_the_UTide_Matlab_functions
Technical Report / User’s Manual:
D.L., 2011. Unified Tidal Analysis and Prediction Using the UTide
Matlab Functions. Technical Report 2011-01. Graduate
School of Oceanography, University
of Rhode Island, Narragansett, RI.
Finally, … for a python-based adaptation of UTide
under development by colleagues, see this: