The Amazon river is subject to major geomorphological changes between the hydrologic periods of flood and dry. Such changes can be mapped and detected by remote sensing techniques. In this context, this research had as objective to evaluate the dynamics of this great fluvial system, in the stretch between the cities of Manaus and Itacoatiara, in the period of 20 years. The results showed the pr...

This contribution focusses on stromatolites and oncolites as tools to seek diverse environmental climate information at different temporal scales. The scales are: (a) Low frequency, dealing with macroscopic megascopic scales, (b) high involving calendar solar frequency bands. Two depositional environments are used for this purpose: Fluvial fluvial–lacustrine, which can develop under moderate gr...

Introduction: The recent observations about different waterand ice-related features on Nepenthes region of Mars [1] [2] [3], and the evidence of changes on the Oceanus Borealis’ water level on this region [4] [5] inspired the work here presented. What are exactly the water-related landforms (glacial, periglacial, fluvial, etc) existing in this region of Mars? How are they spatially distributed?...

Hinwood, J.B. and McLean, E.J., 2000. Monitoring and modelling tidal regime changes following inlet scour. Journal of Coastal Research. Royal Palm Beach (Florida), ISSN J. Coastal Research, Special Publn. 34, pp 449-458, 2001 Entrance closure has been identified by the local coastal communities as one of the more important management problems for the small barrier estuaries. The paper describes...

[1] A numerical model has been developed to predict the evolution and degree of incision and deposition by fluvial channels on the continental shelf during sea level cycles. Rainfall-runoff, mass wasting processes, and fluvial sediment entrainment and transport are simulated using the detachment-limited model of Howard [1994] on a grid that represents the morphology of the continental shelf and...

impacts of effluent from fish farming activities on fluvial ecosystems lead to deterioration of water quality and changes in the macroinvertebrates assemblage. in this study, the influence of fish farm effluents on water quality and macroinvertebrates communities of tajan river was investigated to evaluate the suitability of macroinvertebrates based on biological metrics and indices. benthic ma...