The São Francisco River Basin (SFRB) in Brazil In semi-arid regions, interannual variability of seasonal rainfall and climate change is expected to stress water availability increase the recurrence intensity extreme events such as droughts or floods. Local decision makers therefore need reliable long-term hydro-meteorological forecasts support management resources, reservoir operations agricult...

The analysis of seasonal and long-term changes the Caspian Sea level examined from historical long time tide gauge data in order to consider influence climate factors on sea this lake system using spectral method. major peak at spectra corresponds annual cycle semiannual oscillations is located next vigorous. Effects different global regional are investigated by signal processing methods. Resul...

There is an ever increasing need to apply hydrological models to catchments where streamflow data are unavailable or to large geographical regions where calibration is not feasible. Estimation of model parameters from spatial physical data is the key issue in the development and application of hydrological models at various scales. To investigate the suitability of transferring the regression e...

Water resources in arid and semi-arid regions are heavily influenced by climate change, water shortage, water regulations, and increased water demands. Monthly discharge is one of the most important factors in hydrological studies. Some of the basins are not equipped with adequate hydrometric equipment. In such a case, average monthly discharge could be estimated by regional monthly water balan...

Test borings in the western basin of Lake Erie have revealed an extensive sub-bottom deposit of sand in a triangular region bounded by Stony Point on the mainland shore of Michigan, Middle Sister Island in Ontario, and West Sister Island in Ohio. The 550 km deposit is overlain by up to 7 m of more recent lacustrine silts and clays. The sand beds have an average thickness of 2.3 m, yielding a to...

Efforts aimed at improving regional water management are often frustrated due to the paucity of reliable and consistent information. This paper assesses the scope for remote sensing information, freely available on the Internet, to help water managers in obtaining reliable and consistent information at large (sub) system level. In the Ferghana province of Uzbekistan, belonging to the Syr-Darya ...

Watershed is regarded as a very complex system of natural, social, economic and ecological dimensions and like any similar systems, exploitation of its resources requires a comprehensive and coordinated planning and management. Given the importance of watershed management projects for the development and management of natural resources, the enhancement of the efficiency of these activities is e...

Runoff is an important component of water resources and also the basis for regional development utilization. In order to explore new characteristics spatiotemporal variation runoff in whole Yellow River Basin, Basin from 1982 2012 was studied based on measured data 14 representative basins upper, middle, lower reaches Basin. The results showed that depth a decreasing trend, with decrease rate 0...

A new taxon of sphenosuchian crocodylomorph, Dromicosuchus grallator, is described on the basis of a well-preserved, largely articulated partial skeleton from Late Triassic strata in the Durham sub-basin of the Deep River basin (Newark Supergroup) of Durham County, North Carolina. The holotype was preserved directly beneath the skeleton of a rauisuchian archosaur; this association, along with a...