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Note - downloading software from this site constitutes your acceptance of Gnu GPLv3 license terms. We plan for nfTides to be available in several formats and consider this an ongoing project of updates, improvements and widening accessibility to this method. Other plans include expanding the time period over which the algorithm may be applied; as the UK Hydrographic Office publishes updates to the Admiralty Tide Tables we shall periodically update the Admirality coefficients file included in this distribution so that time series collected more recently may be analyzed using this method.
The current V2.1.1 is distributed as a single Fortran90 source code file that is completely self-contained, requiring no external libraries, and a single file "admiralty.in' that contains the daily coefficients that describe the Admiralty basis functions.
We are also continuing to work to port nfTides to both MATLAB and c++ source code distributions, so please revisit this site periodically for updates.
A link to download nfTides appears below.
If you do not see any files listed below, it means that you have not logged in with your registered account. File downloads are restricted to registered users since registration provides confirmation that you have agreed to the terms of the GNU General Public License GPGv3, which governs the open access, open source software found on this site. If you do not yet have an account, please email NGF <<at>> coas.oregonstate.edu, providing your full name, your title (Mrs., Mr., Dr., Prof.), your position (Engineer, Researcher, Professor, Graduate Student, etc.), the full name of your institution/organization/company, your full work postal mailing address, your email address, your telephone number including country code and area/city code.
We apologize that we no longer allow for automatic web-based registration of user accounts. We were overwhelmed with security breaches by webbots, some of which were malicious, so now require personal registration by the NGF Administrator, following email contact by new user applicants.