scholarly journals Assessment of the intra-annual flow distribution of the Shu-Talas river basin over the past decade

2021 ◽  
Vol 61 (2) ◽  
Author(s):  
А. Mussina ◽  
A. Shaibek ◽  
A. Narbayeva ◽  
A. Alimbay
Keyword(s):  
River Basin ◽  
Flow Distribution ◽  
The Past

scholarly journals Water accounting for water management at the river basin scale in India: approaches and gaps

Water Policy ◽  
2020 ◽  
Vol 22 (5) ◽  
pp. 768-788
Author(s):  
Nitin Bassi ◽  
Guido Schmidt ◽  
Lucia De Stefano
Keyword(s):  
Water Management ◽  
River Basin ◽  
Water Policy ◽  
Past Research ◽  
River Basin Scale ◽  
The Past ◽  
Basin Scale ◽  
Water Accounting ◽  
Accounting Approaches ◽  
National Water

Abstract The main objective of this research paper is to assess the extent to which the concept of water accounting has been applied for water management at the river basin scale in India. For this, the study first assesses the importance given to the use of water accounting for water management in India's national water policy. It then analyses the evolution of water accounting approaches in India through a systematic review of the past research studies on the theme. Further, it looks at their contribution to decision-making concerning allocation of water resources and resolving conflicts over water sharing. Finally, it identifies the existing gaps in the methodologies for water accounting so far used in India.

Hydroclimatic Response of Watersheds to Urban Intensity: An Observational and Modeling-Based Analysis for the White River Basin, Indiana

2010 ◽  
Vol 11 (1) ◽  
pp. 122-138 ◽  
Author(s):  
Guoxiang Yang ◽  
Laura C. Bowling ◽  
Keith A. Cherkauer ◽  
Bryan C. Pijanowski ◽  
Dev Niyogi
Keyword(s):  
River Basin ◽  
Land Surface ◽  
Great Influence ◽  
Flow Distribution ◽  
Surface Characteristics ◽  
Infiltration Capacity ◽  
Vic Model ◽  
White River ◽  
Urban Model ◽  
Streamflow Regime

Abstract Impervious surface area (ISA) has different surface characteristics from the natural land cover and has great influence on watershed hydrology. To assess the urbanization effects on streamflow regimes, the authors analyzed the U.S. Geological Survey (USGS) streamflow data of 16 small watersheds in the White River [Indiana (IN)] basin. Correlation between hydrologic metrics (flow distribution, daily variation in streamflow, and frequency of high-flow events) and ISA was investigated by employing the nonparametric Mann–Kendall method. Results derived from the 16 watersheds show that urban intensity has a significant effect on all three hydrologic metrics. The Variable Infiltration Capacity (VIC) model was modified to represent ISA in urbanized basins using a bulk parameterization approach. The model was then applied to the White River basin to investigate the potential ability to simulate the water and energy cycle response to urbanization. Correlation analysis for individual VIC grid cells indicates that the VIC urban model was able to reproduce the slope magnitude and mean value of the USGS streamflow metrics. The urban model also reproduced the urban heat island (UHI) seen in the Moderate Resolution Imaging Spectroradiometer (MODIS) land surface temperature products, especially for the grids encompassing the city of Indianapolis, IN. The difference of the hydrologic metrics obtained from the VIC model with and without urban representation indicates that the streamflow regime in the White River has been modified because of urban development. The observed data, together with model analysis, suggested that 3%–5% ISA in a watershed is the detectable threshold, beyond which urbanization effects start to have a statistically significant influence on streamflow regime.

scholarly journals Monthly Precipitation Forecasting in the Han River Basin, South Korea, Using Large-Scale Teleconnections and Multiple Regression Models

Water ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1590
Author(s):  
Chul-Gyum Kim ◽  
Jeongwoo Lee ◽  
Jeong Eun Lee ◽  
Nam Won Kim ◽  
Hyeonjun Kim
Keyword(s):  
South Korea ◽  
River Basin ◽  
Regression Models ◽  
Climate Indices ◽  
Monthly Precipitation ◽  
Precipitation Forecasting ◽  
Han River ◽  
The Past ◽  
Multiple Regression Models ◽  
Han River Basin

In this study, long-term precipitation forecasting models capable of reflecting constantly changing climate characteristics and providing forecasts for up to 12 months in advance were developed using lagged correlations with global and local climate indices. These models were applied to predict monthly precipitation in the Han River basin, South Korea. Based on the lead month of forecast, 10 climate indices with high correlations were selected and combined to construct four-variable multiple regression models for monthly precipitation forecasting. The forecast results for the analytical period (2010–2019) showed that predictability was low for some summer seasons but satisfactory for other seasons and long periods. In the goodness-of-fit test results, the Nash–Sutcliffe efficiency (0.48–0.57) and the ratio of the root mean square error to the standard deviation of the observation (0.66–0.72) were evaluated to be satisfactory while the percent bias (9.4–15.5%) was evaluated to be between very good and good. Due to the nature of the statistical models, however, the predictability is highly likely to be reduced if climate phenomena that are different from the statistical characteristics of the past appear in the forecast targets or predictors. The forecast results were also presented as tercile probability information (below normal, normal, above normal) through a comparison with the observation data of the past 30 years. The results are expected to be utilized as useful forecast information in practice if the predictability for some periods is improved.

Climate change and hydrologic process response in the Tarim River Basin over the past 50 years

2006 ◽  
Vol 51 (S1) ◽  
pp. 25-36 ◽  
Author(s):  
Changchun Xu ◽  
Yaning Chen ◽  
Weihong Li ◽  
Yapeng Chen
Keyword(s):  
Climate Change ◽  
River Basin ◽  
Tarim River ◽  
Tarim River Basin ◽  
Hydrologic Process ◽  
The Past ◽  
The Tarim River ◽  
The Tarim River Basin

scholarly journals Evaluation of temporal drought variation and projection in a tropical river basin of Kerala

2020 ◽  
Vol 11 (S1) ◽  
pp. 115-132 ◽  
Author(s):  
M. A. Jincy Rose ◽  
N. R. Chithra
Keyword(s):  
River Basin ◽  
Standardized Precipitation Index ◽  
Drought Severity ◽  
Climate Projections ◽  
Severe Drought ◽  
Tropical River ◽  
The Past ◽  
Drought Conditions ◽  
The Future ◽  
The Standardized Precipitation Index

Abstract Temperature is an indispensable parameter of climate that triggers evapotranspiration and has vital importance in aggravating drought severity. This paper analyses the existence and persistence of drought conditions which are said to prevail in a tropical river basin which was once perennial. Past observed data and future climate projections of precipitation and temperature were used for this purpose. The assessment and projection of this study employ the Standardized Precipitation Evapotranspiration Index (SPEI) compared with that of the Standardized Precipitation Index (SPI). The results indicate the existence of drought in the past and the drought conditions that may persist in the future according to RCP 4.5 and 8.5 scenarios. The past drought years identified in the study were compared with the drought declared years in the state and were found to be matching. The evaluation of the future scenarios unveils the occurrence of drought in the basin ranging from mild to extreme conditions. It has been noted that the number of moderate and severe drought months has increased based on SPEI compared to SPI, indicating the importance of temperature in drought studies. The study can be considered as a plausible scientific remark helpful in risk management and application decisions.

scholarly journals Monthly storminess over the Po River Basin during the past millennium (800–2018 CE)

2020 ◽  
Vol 2 (3) ◽  
pp. 031004
Author(s):  
Nazzareno Diodato ◽  
Fredrik Charpentier Ljungqvist ◽  
Gianni Bellocchi
Keyword(s):  
River Basin ◽  
Po River ◽  
The Past ◽  
Po River Basin ◽  
Past Millennium

Challenge and response in the Colorado River Basin

Water Policy ◽  
2014 ◽  
Vol 16 (S1) ◽  
pp. 12-57 ◽  
Author(s):  
Jason Robison ◽  
Katja Bratrschovsky ◽  
Jaime Latcham ◽  
Eliza Morris ◽  
Vanessa Palmer ◽  
...  
Keyword(s):  
River Basin ◽  
Water Regime ◽  
Colorado River ◽  
Water Rights ◽  
Colorado River Basin ◽  
Western United States ◽  
Past Century ◽  
The Past ◽  
Salinity Control ◽  
Indian Tribes

The Colorado River Basin supplies water to roughly 40 million people in the south-western United States. A complex interstate regime that has evolved across the past century governs allocation and management of these coveted flows, and formidable challenges face this regime in contemporary times – a historical era aptly dubbed the ‘era of limits’. This paper illuminates these challenges and offers modest input regarding potential responses to them. We initially survey the evolution of the interstate water regime and outline its essential features as well as those of the basin. We then turn to the contemporary challenges and potential responses, which generally concern an unprecedented imbalance between water supplies and demands, long-standing disagreements over the meaning of the Colorado River Compact, water rights held by American Indian tribes on reservations throughout the basin, and ongoing biodiversity protection and salinity control efforts. We conclude by reflecting on lessons from and for the Colorado River Basin vis-à-vis the interstate water regimes existent in the other four basins encompassed within the Harvard Water Federalism Project.

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