جستجوی مقالات مرتبط با کلیدواژه « tide » در نشریات گروه « عمران »

According to the corrections applied to the measurements of sea surface height from satellite altimetry there is still a non-tidal effects on these data. We can use the height difference observations of the two adjacent points sequentially in one pass of satellite altimetry (below one second intervals ground footprint which is 6 km long) to eliminate these effects. In this study, a differential approach is provided to develop the harmonic tidal analysis during the pass of satellite altimetry data from the Jason-1 and Topex for Persian Gulf region.
Tidal analysis of the adjacent point is used to compare their height differences observed for refined harmonic tidal analysis along the pass of satellite altimetry for computing the harmonic constants which show the algorithm can be reduced non tidal effects in altimetry observations and increase the accuracy of tidal component.

Most energy existed in the earth are dependent to the Sun directly or indirectly.Energy reserves can be divided into nonrenewable and renewable energies. Renewable energy is energy which comes from natural resources. In this research we studied of extracting energy from tides in the northern Persian Gulf coast was investigated in five stations (Shahid Rajaee,Bandar Imam Khomeini, Imam Hassan,Kangan and Bushehr). In this research, the field data collected in January 2009 is related to the tides. Then, with the help of TTide software which can be run in MATLAB software, amplitude and phases relating to the 30 principal components were extracted and signals were filtered by Bandpass technique. By considering the 4 main components of K1, O1, M2, S2 the amount of energy produced at each station as well as the kind of tide were recognized.In the case of stations the kind of tides are semidiurnal and the maximum amount of potential energy is 1.81 × 105 W that related to Shahid Rajaee station. The predicted components were compared with Forman's software results which used for harmonic analysis in the National Cartographic Center (NCC), that show good consistency.