scholarly journals Geographical overview of water balance of Slovenia 1971–2000 by main river basins

2007 ◽  
Vol 47 (1) ◽  
pp. 25-45 ◽  
Author(s):  
Peter Frantar
Keyword(s):  
Water Balance ◽  
River Basins ◽  
Main River

Projected Changes in Water Balance Components of 11 Large River Basins during the 21st Century and Their Uncertainties

2021 ◽  
Vol 48 (5) ◽  
pp. 666-675
Author(s):  
O. N. Nasonova ◽  
Ye. M. Gusev ◽  
E. E. Kovalev ◽  
G. V. Ayzel ◽  
M. K. Chebanova
Keyword(s):  
Water Balance ◽  
21St Century ◽  
River Basins ◽  
Large River ◽  
Water Balance Components ◽  
Projected Changes ◽  
Large River Basins

Inter-comparison of water balance components of river basins draining into selected delta districts of Eastern India

2019 ◽  
Vol 654 ◽  
pp. 1258-1269 ◽  
Author(s):  
S. Visakh ◽  
P.V. Raju ◽  
Sunil S. Kulkarni ◽  
P.G. Diwakar
Keyword(s):  
Water Balance ◽  
River Basins ◽  
Eastern India ◽  
Water Balance Components

RIONET: a water quality management tool for river basins

2003 ◽  
Vol 48 (10) ◽  
pp. 47-53 ◽  
Author(s):  
H. Reuter ◽  
G. Krause ◽  
A. Mönig ◽  
M. Wulkow ◽  
H. Horn
Keyword(s):  
Water Quality ◽  
Quality Management ◽  
Waste Water Treatment ◽  
Sediment Cores ◽  
Water Quality Management ◽  
River Basins ◽  
Bulk Water ◽  
Management Tool ◽  
Quality Model ◽  
Main River

The water quality management tool RIONET for river basins has been developed with regard to the EU Water Framework Directive. The management tool can simulate the water quality in catchment basins not only in the dimension of a single river but in whole river networks. A submodel of the IWA River Water Quality Model No. 1 is used in RIONET. The river model is based on the assumption that self purification processes in the river takes place both in the benthic biofilm and the bulk water phase. Laboratory experiments with sediment cores underline the major role of the benthic biofilm. The input parameters of the management tool such as volumetric flow rates from waste water treatment plants and flow velocities and discharge in the main river and its tributaries can be loaded directly from geographic information systems (GIS). The subcatchment basin of the river Bode in Saxon Anhalt was used for test runs of RIONET.

scholarly journals Water balance assessment of Sajnam watershed, Lalitpur (U.P.)

2019 ◽  
Vol 34 (02) ◽  
Author(s):  
R. K. Jaiswal ◽  
T. Thomas ◽  
Jyoti P Patil ◽  
Meeta Gupta ◽  
V. C. Goyal
Keyword(s):  
Water Balance ◽  
Artificial Recharge ◽  
Local Population ◽  
Water Harvesting ◽  
Balance Assessment ◽  
Irrigation Project ◽  
Main River ◽  
Balance Analysis ◽  
Demand Scenario ◽  
Water Harvesting Structures

It is a well-known fact that it is not all possible to avoid droughts, but droughts can be managed to minimise the hardships of the local population. For this purpose, understanding of the supply-demand scenario is of utmost importance to understand the overall hydrology and planning needs of any watershed. It is in this direction, the comprehensive water balance analysis has been performed for the Sajnam watershed in Lalitpur district of Bundelkhand which is susceptible to regular and continuous droughts. The detailed water balance has been carried out after identification of important components and their quantification using the advance tools of Remote Sensing and GIS alongwith standard estimation techniques of individual components. It was observed that the runoff at the outlet of Sajnam basin is influenced by the water storage in the irrigation project located on the main river. The higher surface runoff of 668.53 MCM, 406.17 MCM, 343.46 MCM and 214.00 MCM is generated only during 2013-14, 2008-09, 2012-13 and 2010-11 respectively. During the remaining years, the runoff varied between 89.35 MCM and 209.81 MCM. Efforts can be initiated towards exploring the possibility of more water harvesting structures onthe lower order tributaries as well as artificial recharge measures depending on the hydro-geology of the watershed..

Long-term water balance partitioning explained by physical and ecological characteristics in world river basins

Ecohydrology ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. e2072 ◽  
Author(s):  
Daniel Mercado-Bettín ◽  
Juan F. Salazar ◽  
Juan Camilo Villegas
Keyword(s):  
Water Balance ◽  
River Basins ◽  
Ecological Characteristics

scholarly journals Low genetic variability in the endangered Colombian endemic freshwater turtle Podocnemis lewyana (Testudines, Podocnemididae)

2007 ◽  
Vol 76 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Mario Vargas-Ramírez ◽  
Ylenia Chiari ◽  
Olga Victoria Castaño-Mora ◽  
Steph B.J. Menken
Keyword(s):  
Dna Sequences ◽  
Nucleotide Substitution ◽  
River Basins ◽  
Habitat Destruction ◽  
Freshwater Turtle ◽  
Fine Scale ◽  
Main River ◽  
Genetic Survey ◽  
Geographic Regions ◽  
Magdalena River

The Magdalena River Turtle (Podocnemis lewyana) is a Colombian endemic species, endangered due to human exploitation and habitat destruction. To date, this species is poorly known ecologically and data on its genetic diversity are lacking. Here we report on the first genetic survey of the species across its distribution range. We obtained mitochondrial DNA sequences (488 bp) of the cytochrome b gene from 109 individuals. Samples belong to populations located at several different localities, grouped in five regions, along the four main river basins: Magdalena, Cauca, San Jorge, and Sinú drainages. We found two haplotypes, which differ in only one nucleotide substitution and which are represented with different frequencies in the five geographic regions. These results suggest that P. lewyana harbors little genetic variation and is a genetically uniform species, but more variable markers (i.e., microsatellites) should be used to unravel fine-scale phylogeographic structures in this species.

scholarly journals Water balance of selected floodplain lake basins in the Middle Bug River valley

2014 ◽  
Vol 18 (4) ◽  
pp. 1457-1465 ◽  
Author(s):  
J. Dawidek ◽  
B. Ferencz
Keyword(s):  
Water Balance ◽  
River Valley ◽  
Floodplain Lake ◽  
Water Balance Components ◽  
River Waters ◽  
Main River ◽  
Time Period ◽  
Order Of Magnitude ◽  
Gains And Losses ◽  
Lake Basins

Abstract. This study is the first attempt in the literature on the subject of comparing water balance components for floodplain lake basins, depending on the type of a lake connection to the parent river. Research was carried out in the Bug River valley in 2007–2011 water years. Four types of connections were distinguished in the area under study. Simple water balance equation could only be used with regard to the lakes connected to the main river via the upstream crevasses. Detailed and individual water balance equations were developed with reference to the other types of lakes. Water gains and losses varied significantly in the lakes under study. Values of horizontal water balance components (inflow and outflow) of the floodplain lake in Wola Uhruska considerably prevailed over the vertical ones (precipitation and evaporation). Inflow of the Bug River waters was diverse during the time period under study and amounted from 600 000 to 2 200 000 m3 yr−1. Volumes of precipitation and evaporation were rather stable and amounted to approx. 30 000 m3 yr−1. The lowest disparity between horizontal and vertical water balance components was observed in the inter-levee lake. Both upstream inflow of rivers water and outflow from the lake (ranged from 0 in 2008 to 35 000 m3 yr−1 in 2009) were usually an order of magnitude higher than precipitation and evaporation from the lake surface (700–800 m3 yr−1). Study showed that the values and the proportion between aforementioned vertical and horizontal water balance elements were determined by the type of a lake connection to the Bug River. Storage volume showed no relationship to the type of connection, but resulted from individual features of the lakes (location within the valley, precipitation and evaporation volume, difference between water inflow and outflow).

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