scholarly journals HISTORICAL HYDROLOGICAL DATA GENERATION FOR UNGAUGED WATERSHED BY WATER BALANCE TOOL

2020 ◽  
Vol 18 (67) ◽  
Author(s):  
Wachirawit Plinruttanadet
Keyword(s):  
Water Balance ◽  
Data Generation ◽  
Hydrological Data ◽  
Ungauged Watershed

scholarly journals Regional Parameter Estimation of the SWAT Model: Methodology and Application to River Basins in the Peruvian Pacific Drainage

Water ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 3198
Author(s):  
Flavio Alexander Asurza-Véliz ◽  
Waldo Sven Lavado-Casimiro
Keyword(s):  
Water Balance ◽  
Assessment Tool ◽  
Hydrological Cycle ◽  
Swat Model ◽  
Parameters Estimation ◽  
Data Availability ◽  
Model Parameters ◽  
Hydrological Data ◽  
The Pacific ◽  
Main Components

This study presents a methodology for the regional parameters estimation of the SWAT (Soil and Water Assessment Tool) model, with the objective of estimating daily flow series in the Pacific drainage under the context of limited hydrological data availability. This methodology has been designed to obtain the model parameters from a limited number of basins (14) to finally regionalize them to basins without hydrological data based on physical-climatic characteristics. In addition, the bootstrapping method was selected to estimate the uncertainty associated with the parameters set selection in the regionalization process. In general, the regionalized parameters reduce the initial underestimation which is reflected in a better quantification of daily flows, and improve the low flows performance. Furthermore, the results show that the SWAT model correctly represents the water balance and seasonality of the hydrological cycle main components. However, the model does not correctly quantify the high flows rates during wet periods. These findings provide supporting information for studies of water balance and water management on the Peruvian Pacific drainage. The approach and methods developed can be replicated in any other region of Peru.

scholarly journals Hydrogeological functions of obskoye and baksinskoye swamps in the southeast of West Siberian Plain

2021 ◽  
Vol 958 (1) ◽  
pp. 012018
Author(s):  
H Yang ◽  
O G Savichev
Keyword(s):  
Water Balance ◽  
Water Mass ◽  
Dry Season ◽  
West Siberian Plain ◽  
Water Runoff ◽  
Hydrological Data ◽  
Surface Evaporation ◽  
Quantitative Estimates ◽  
Bog Waters ◽  
The Impact

Abstract Based on hydrological data from 1966 to 2019, quantitative estimates of the water balance of the Baksinskoye and Obskoye fens. The decrease in surface evaporation of the swamp and the increase in water runoff occurred in the main distribution of the swamp. This will exacerbate the degree of swamping in the area. The impact of marsh water on groundwater is most likely to occur during the dry season in summer and autumn. During this period: 1) possible overflow of bog waters into underground horizons in areas of 800–900 m; 2) increased permeability. When the water mass is discharged from the fens plain into the river, the impact of the fens water reaches its maximum during the subside of the flood.

scholarly journals Floods and wetlands: combining a water-balance model and remote-sensing techniques to characterize hydrological processes of ecological importance in the Tana River Delta (Kenya)

2012 ◽  
Vol 9 (10) ◽  
pp. 11267-11318 ◽  
Author(s):  
C. Leauthaud ◽  
S. Duvail ◽  
G. Belaud ◽  
R. Moussa ◽  
O. Grünberger ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Water Balance ◽  
Overland Flow ◽  
Hydrological Model ◽  
Ecological Status ◽  
River Delta ◽  
Hydrological Data ◽  
Tana River ◽  
Ecological Importance ◽  
Remote Sensing Techniques

Abstract. The Tana River Delta (TRD) provides a multitude of ecosystem services for the local communities including fishing, farming and livestock keeping. The hydrological regime of its river determines for a large part the environmental health of the delta. The development of upstream irrigation schemes and hydroelectric infrastructure can seriously impact the ecological status of the TRD. The Tana Inundation Model (TIM) presented here is the first known hydrological model of the TRD. Using it, we quantify essential hydrological variables of ecological importance for 2002–2011 such as flood extent and duration, flood timing and frequency, flood peaks and water height. TIM also provides an annual water balance. The model simulates river inflows and outflows, precipitation, overland flow, evapotranspiration and infiltration. The TRD is characterized by scarce hydrological data and a high cloud cover limiting the use of many remote sensing techniques. The methodology therefore combined a conventional water-balance analysis with the extraction of inundation extents from MODIS satellite imagery at a medium spatial and temporal resolution. In non extreme years and for the actual configuration of the Tana River, the flooded area exceeds 560 km2. Floods over 200 km2 occur approximately every two years, with a mean duration of less than 25 days. River discharge from the upper catchment counts for over 96% of the total water inflow. This study provides the first known estimates of these variables for the Tana River Delta and is therefore primordial for the management of the water and other natural resources of the zone. The hydrological model based on the Generalized Likelihood Uncertainty Estimation (GLUE) is generic enough to be applied to other catchments with scarce hydrological data.

Water balance, drought stress and yields for rainfed field crop rotations under present and future conditions in the Czech Republic

2015 ◽  
Vol 65 ◽  
pp. 175-192 ◽  
Author(s):  
P Hlavinka ◽  
KC Kersebaum ◽  
M Dubrovský ◽  
M Fischer ◽  
E Pohanková ◽  
...  
Keyword(s):  
Czech Republic ◽  
Drought Stress ◽  
Water Balance ◽  
Crop Rotations ◽  
Field Crop ◽  
The Czech Republic

Water Balance for the City of Al-Najaf Al-Ashraf/Southern Iraq

2017 ◽  
Vol 13 (4) ◽  
pp. 186-197
Author(s):  
Tariq Abed Hussain ◽  
◽  
Ghayda Yaseen AlKindi ◽  
Rana Jawad Kadhim
Keyword(s):  
Water Balance ◽  
The City ◽  
Southern Iraq

HOUSEHOLD WATER BALANCE AND ASSESSMENT OF WATER VOLUME FOR IRRIGATION IN AGRO LANDSCAPES OF THE KYZYLSU-YUZHNAYA BASIN

2020 ◽  
pp. 102-109
Author(s):  
D.KH. DOMULLODZHANOV ◽  
◽  
R. RAHMATILLOEV
Keyword(s):  
Water Balance ◽  
River Basin ◽  
Water Use ◽  
Storage Systems ◽  
Low Cost ◽  
Field Studies ◽  
Water Volume ◽  
Land Productivity ◽  
Household Water ◽  
And Storage

The article presents the results of the field studies and observations that carried out on the territory of the hilly, low-mountain and foothill agro landscapes of the Kyzylsu-yuzhnaya (Kyzylsu-Southern) River Basin of Tajikistan. Taking into account the high-altitude location of households and the amount of precipitation in the river basin, the annual volumes of water accumulated with the use of low-cost systems of collection and storage of precipitation have been clarified. The amount of water accumulated in the precipitation collection and storage systems has been established, the volume of water used for communal and domestic needs,the watering of livestock and the amount of water that can be used to irrigate crops in the have been determined. Possible areas of irrigation of household plots depending on the different availability of precipitation have been determined. It has been established that in wet years (with precipitation of about 10%) the amount of water collected using drip irrigation will be sufficient for irrigation of 0.13 hectares, and in dry years (with 90% of precipitation) it will be possible to irrigate only 0.03 ha of the household plot. On the basis of the basin, the total area of irrigation in wet years can be 4497 ha, and in dry years only 1087 ha. Taking into account the forecasts of population growth by 2030 and an increase in the number of households, the total area of irrigation of farmlands in wet years may reach 5703 hectares,and in dry years – 1379 hectares. Growing crops on household plots under irrigation contributes to a significant increase in land productivity and increases the efficiency of water use of the Kyzylsu-yuzhnaya basin.

Hydrological data and site feature information for a forest clearcutting and residual biomass removal study at the Marcell Experimental Forest

2020 ◽  
Author(s):  
Colin P. R. McCarter ◽  
Stephen D. Sebestyen ◽  
Susan L. Eggert ◽  
Kristine M. Haynes ◽  
Randall K. Kolka ◽  
...  
Keyword(s):  
Hydrological Data ◽  
Residual Biomass ◽  
Biomass Removal ◽  
Feature Information
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