In this paper, flood characteristics along the canal area effected by Hanzhuang Canal jacking are studied. By coupling rainfall runoff (NAM) model with hydrodynamic (HD) model, a 1-D hydrologic-hydrodynamic was built. On basis of parameter calibration and validation, different simulation schemes drawn up, influence range tributaries affected analyzed respectively. The results show that increasi...

The problem of optimizing a regional waterquality observation network is considered: the basic purpose of the network is to provide a statistically sound estimate of the annual nutrient load discharged into a lake by its tributaries. Following a brief description of the underlying lake eutrophication problem, first a single time period, single water quality component decision model is formulate...

During the latter part of 1982 a joint services expedition travelled to Peru. The aims of this expedition included the setting up of the world's first hover doctor service on one of the main tributaries of the Amazon river to provide a primary medical care service for Campa and Quechua Indians living in villages close to the river. We describe the project, the problems encountered, and the pros...

Flood along the Mekong River and the Tonle Sap Lake and tributaries is a recurring event, sometimes reaching disastrous dimensions, with severe losses in human lives and food production. The annual flood in Cambodia reached catastrophic proportions in 1996, prompting the Cambodian Red Cross (CRC) and the International Federation of Red Cross and Red Crescent Societies (the Federation) to initia...

The “laguna de El Conde” wetland Ramsar reserve (Córdoba, Spain) depicts a geomorphological progression with different Pleistocene and Holocene stages and reaching a concluding situation by anthropic manipulation of the local network of tributaries. The nature of the sediments carried into the Triassic-gypsum depression where the reserve is situated. Further, dissolution processes and the forma...

MATTERS TO BE CONSIDERED: (1) Summary report by President of the Commission on national and regional issues affecting the U.S. Army Corps of Engineers and Commission programs and projects on the Mississippi River and its tributaries; (2) District Commander’s overview of current project issues within the New Orleans District; and (3) Presentations by local organizations and members of the public...

A practical scheme to perform the fast Fourier transform in the optical domain is introduced. Optical real-time FFT signal processing is performed at speeds far beyond the limits of electronic digital processing, and with negligible energy consumption. To illustrate the power of the method we demonstrate an optical 400 Gbit/s OFDM receiver. It performs an optical real-time FFT on the consolidat...

Ecological assessment of large rivers such as the Danube is a challenging task. Eutrophication was reported one main drivers that structure aquatic communities in basin. Due to their sedentary nature, relatively slow growth/ long life spans, and engineering role ecosystems, macrophytes are widely used detection nutrient enrichment. In this study, macrophyte presence-absence data within 3 km rea...

The geographical environment fundamentally influences the transport and deposition of sediments, including microplastics. In addition, socioeconomic differences inherent in transboundary catchments result various waste management strategies among different countries influencing input microplastics into rivers. catchment Tisza River Central Europe is shared by five with economic statuses wastewa...

The high productivity stems from the annual inundation by the Mekong River of the large floodplains found in central Cambodia around the Great Lake, Tonle Sap, and the Mekong floodplains northeast and south of Phnom Penh, where important fish habitats such as flood forests are found (Figures 1.1 and 1.2 page 16). Huge seasonal migrations take place between these floodplains and spawning grounds...