Tidal and residual currents over abrupt deepsea topography. Esr provides matlab software, the tide model driver tmd package, to access all the listed models and to make tidal predictions. Model hidrodinamika pasang surut di perairan kepulauan. Assimilation of grace tide solutions into a numerical. Onedimensional transport with inflow and storage otis. The model grid files are formatted to match the oregon state tidal inversion software otis format, can be accessed using esrs matlab tide model driver tmd toolbox and osus fortran osu tidal prediction software otps code. Otis includes software for generating grids, prior model covariances, and boundary conditions. We describe highresolution 5km grid lineardynamics and inverse models of arctic ocean barotropic tides obtained with the osu tidal inversion software otis package. Over 3 million unverified definitions of abbreviations and acronyms in acronym attic. Tidal elevations have been validated and calibrated against tide gauge data in which at least six tide gauges are available in the study location. These model files are also compatible with the osu tidal prediction software otps fortran code. Tidal prediction at positions and times from otis netcdf files. In this study, the oregon state university tidal inversion software otis by 28 is used to assimilate empirical observations into hydrodynamic equations in the gbr and coral sea. Esr provides matlab software, the tide model driver tmd package, to.
The methods used to compute the model are described in details by egbert, bennett, and foreman,1994 and further by egbert and erofeeva,2002 the tides are provided as complex amplitudes of earthrelative seasurface elevation. The osu tidal inversion software otis is a relocatable implementation of the tidal data inversion scheme described in, further developed in. For forcing at the lateral ocean boundary, the ofs uses water temperature and salinity forecast guidance from ncep realtime ocean forecast system grtofs and sub tidal water level forecast guidance from grtofs along with tidal harmonics derived from the oregon state university tidal inversion software otis regional tide solutions 2010. Tidal inversion software otis, and other data sources, such as global sealevel observing system gloss data, have been done to ii. Major changes to the software have been made to significantly improve computational efficiency and ease of use for regional tidal modeling constrained by altimetry data other kinds of data. A tidal inversion model developed by oregon state university, osu tidal inversion software otis was chosen for this purpose egbert et al. Evidence of the selection of tidal streams by northern rock. Tidal software provides application scheduling and performance management software that simplifies it operations by automating and integrating performance and process management. The osu tidal inversion software otis is used to obtain local solutions of barotropic tidal currents. Enjoy over 35 million songs in high fidelity sound quality, high definition music videos and expertly curated. May 04, 2010 tops is based on the oregon state university osu tidal inversion software otis package, which was simplified, automated, and transitioned to operate within the setup of the relocatable ncom. Efficient inverse modeling of barotropic ocean tides. The oregon state university osu tidal inversion software otis is being automated, tested and used to generate tidal solutions in the eastasian seas eas region.
Pdf use of the oregon state university tidal inversion. All our globalregionallocal models were obtained with otis. Consequences of tidal dissipation in a putative venusian ocean. Since 2002 otis has been significantly modified incorporating extra functions using object oriented features of fortran 90. Egbert and lana erofeeva otis is a package of programs for tidal data assimilation based on methods used by egbert, bennet, foreman in ebf for the global inverse solution tpxo tpxo. A barotropic inverse tidal model for the arctic ocean.
Dec 19, 2012 comparisons among iho data, the output of o. Otis is a package of programs for tidal data assimilation based on methods used by egbert, bennet, foreman in for the global inverse solution tpxo tpxo. Otis is defined as optimal trajectory by implicit simulation very rarely. For verified definitions visit all trademarksservice marks referenced on this site are properties of their respective owners. Use of the oregon state university tidal inversion software otis to generate improved tidal prediction in the eastasian seas pa u l j. W for each depth measurement using the otis tidal inversion software oregon state university, corvallis, or which was created with solu. The model grid files that can be used with tmdversion 2.
Tidal currents over the shelf of the red sea reach only about 5 cm s1. The impact of the m2 internal tide on dataassimilative. Use of international hydrographic organization tidal data for. Use of the oregon state university tidal inversion software otis. The model uses oregon state university tidal inversion software otis egbert and erofeeva, 2002. The otis model data used in this study is from the pacific ocean 112deg data set otis, 20. The model is described in detail by egbert and erofeeva 2002. These methods were implemented in the software package otis osu tidal inversion software. When any model is updated, the merging has to be redone. The oregon state university tidal inversion software otis regional tide solutions 2010 west coast tidal data wc2010 is used to provide offshore boundary conditions for the m. The model has been validated against measurement in six stations of boost center babel ocean observation and technologies.
Tpxo is a series of fullyglobal models of ocean tides, which bestfits, in a leastsquares sense, the laplace tidal equations and altimetry data. This software is based on a chain of software to decode these files. Naval research laboratory stennis space center, ms 395295004 nrlmr7320099176 approved for public release. Otis osu tidal inversion software implements the efficient representer calculation scheme, which forms the basis for a practical relocatable tidal data. If you use our softwaremodels let us know well be happy to include your link here. Efficient inverse modeling of barotropic ocean tides american. More recently this category of software is increasingly labeled as workload automation, which is an industry term for the next generation of job scheduling applications. Evidence of the selection of tidal streams by northern.
Tpxo is a series of fullyglobal models of ocean tides, which bestfits, in a leastsquares sense, the. The model grid files are formatted to match the oregon state tidal inversion software otis format, and can be accessed using fortranbased osu tidal prediction software otps code. This estimate is obtained using the oregon state university tidal inversion software otis, available with a high resolution of 1 see egbert and erofeeva, 2002, for details. Tops is based on the oregon state university osu tidal inversion software otis package, which was simplified, automated, and transitioned to operate within the setup of the relocatable ncom. Impact of highresolution tidal forcing on the navy.
Each next model in tpxo series is based on updated bathymetry and assimilates more data compared to previous versions. Otis optimal trajectory by implicit simulation acronymattic. Apr, 2020 the model grid files that can be used with tmdversion 2. Merging local and global tidal models is nontrivial and very timeconsuming. Pdf software design description for the tidal open. The osu tidal inversion software otis is a relocatable implementation of the tidal data inversion scheme described in and further developed in. University tidal inversion software otis by egbert and erofeeva 10,11 and the last version of the fes finite element solution global tide model developed in 2012, fes2012 12. Apr 10, 2009 the oregon state university osu tidal inversion software otis is being automated, tested and used to generate tidal solutions in the eastasian seas eas region. Otis is defined as osu tidal inversion software rarely. Otis is a relocatable implementation of the topexposeidon altimetry tidal inversion scheme based on. San francisco bay operational forecast system sfbofs.
A regional assimilation barotropic tidal model for. With this package, which we refer to as otis for osu tidal inversion software, regionalscale tidal inverse problems with grids containing up to 10 5 nodes can be solved in a few hours on a common desktop workstation with a reasonable amount say 500 mb of ram. We have completed development and documentation of a selfcontained efficient barotropic tidal inversion package, which we refer to as the osu tidal inversion software, or otis. Tidal inversion software otis, and other data sources, such as global sealevel observing system gloss data, have been done to test the quality and accuracy of iho data. The model domain covers the area between w 16w in longitude and 32n 35n in latitude with seine seamount in its 1 1.
The model boundary conditions were obtained from the oregon state university tidal inversion software otis, also known as the tidal model driver tmd. While the dynamical calculations involve elevations alone, depthaveraged currents can be directly assimilated into the tidal model with this approach. All available data and dynamics can be combined using the otis software tool to develop a new tidal model. A barotropic inverse tidal model for the arctic ocean nasaads. Otis stands for optimal trajectory by implicit simulation. Otis osu tidal inversion software otps osu tidal prediction software. Satellite altimetry over the open ocean is reasonably well understood and data are routinely utilized for a variety of ocean applications. This model performs significantly better than the present. Article efficient inverse modeling of barotropic ocean. In current operations, this tidal forcing is typically extracted from a suite of global and regional tidal databases that were created by gary egbert using the oregon state university tidal inversion software otis. Software design description for the tidal openboundary. Tidal enterprise scheduler tes is a job scheduler originally created by tidal software, inc. The osu tidal inversion software otis is a relocatable implementation of the tidal data inversion scheme described in ebf, 1994 and further developed in. Esr and oregon state university osu create and serve barotropic tide models for the arctic ocean and the seas surrounding antarctica.
Osu tidal inversion software otis osu tidal prediction. Preliminary estimation of tidal current energy for three. The efficient representer calculation forms the basis for the oregon state university osu tidal inversion software otis. Use of international hydrographic organization tidal data.
Naval research laboratory, stennis space center, bay st. Eight tidal constituents were imposed along the ocean open boundaries. The system performs the generalized inversion of the laplace tidal equations lte, as defined by a variational leastsquares formulation, within arbitrary geographic. On the other hand, many operational needs occur close to the coast, and fully resolving the rapid timespace scale processes especially those less than 20 km 12 mi from the coast are dependent on dedicated processing with adequate corrections e. The model grid files are formatted to match the oregon state tidal inversion software otis format, and can be accessed using the matlab tide model driver tmd package and the fortran osu tidal prediction software otps code.
The same codes work on osus family of models for other regions around the world. Oregon state university osu tidal inversion software otis. Analysis of tidal currents in the north sea from shipboard. In section 4 we provide some further details on otis, including. Major changes to the software, compared to the version 1. The oregon state university tidal inversion software otis is a system for the dataassimilative modeling of surface tides egbert and erofeeva, 2002, egbert and erofeeva, 2006. Major changes to the software have been made to significantly improve. Tidal height and current speed and direction were estimated at the midpoint location between. The simulation results show that the tidal dynamic in bangka.
Impact of highresolution tidal forcing on the navy coastal. Use of the oregon state university tidal inversion software otis to generate improved tidal prediction in the eastasian seas. Otis osu tidal inversion software implements the efficient representer calculation scheme, which forms the basis for a practical relocatable tidal data inversion package. Model hidrodinamika pasang surut di perairan kepulauan bangka. Tidal modeling the venusian tides were simulated using the portable oregon state university tidal inversion software otis, which has been used extensively to simulate deeptime, present day, and future tides on earth e. Osu tidal inversion software otis osu tidal prediction software otps tpxo global and local models.
All tpxo models were obtained with otis, the software, implementing methods described in details. Two different sources of tidal constituents namely le provost and otis osu tidal inversion software were used. Osu host a number of different data sets which are accessible from this page, along with the software required to extract constituents in fortran or matlab. Otis model performance was evaluated by comparing characteristics of model output. Tidal predictions were obtained using the oregon state university osu tidal prediction software otps with the osu tidal inversion software otis regional model of the west coast of north america egbert et al. The oregon state university osu tidal inversion software otis is being automated, tested and used to generate tidal solutions in the eastasian seas eas. The simulation was carried out using dhis mike 21 flow fm software, a 2dimension flexible mesh hydrodynamic model. It is now owned by the dillon kane group, who purchased it from cisco systems and renamed it to tidal workload automation twa.
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