hydrologic impact Articles

Climate change, urbanisation and hydrological impacts

This paper is a review of recent studies that addressed the hydrological impacts, especially on streamflow, of climate change and/or urbanisation. Articles published between 1996 and 2002 on this subject were reviewed focusing on research methods and results. The main issues addressed with regard to research methods include development of climate change and urbanisation scenarios, assessment of ...

Jan. 28, 2005

By Inderscience Publishers
Distribution-based scaling to improve usability of regional climate model projections for hydrological climate change impacts studies

As climate change could have considerable influence on hydrology and corresponding water management, appropriate climate change inputs should be used for assessing future impacts. Although the performance of regional climate models (RCMs) has improved over time, systematic model biases still constrain the direct use of RCM output for hydrological impact studies. To address this, a ...

Jun. 1, 2010

By IWA Publishing
Climate Change Impact on Hydro-meterological Variables: A Review

Due to increasing concentration of carbon dioxide and other greenhouse gases in the atmosphere, several hydro-meteorological variables are likely to be significantly impacted. Reservoir operations, crop production, erosion processes, runoff production and many other hydrological processes are likely to be impacted by the ongoing climate change. This paper presents a comprehensive review of ...

Oct. 2, 2012

By IWA Publishing
Producing enough food in a climate insecure world

This article focuses on the challenges related to water, climate change and food security. The article summarizes recent food production and food security trends and provides an overview of how climate change, through impacts on global hydrology, could impact food production, and consequently food security, in some key farming systems. However, as climate change is but one of many ...

Dec. 15, 2011

By IWA Publishing
Modelling the hydrological impacts of rural land use change

The potential role of rural land use in mitigating flood risk and protecting water supplies continues to be of great interest to regulators and planners. The ability of hydrologists to quantify the impact of rural land use change on the water cycle is however limited and we are not able to provide consistently reliable evidence to support planning and policy decisions. This shortcoming stems ...

Dec. 22, 2014

By IWA Publishing
Hydrology with impact: how does hydrological science inform decision-makers?

Water plays a central part in many aspects of life, and good hydrological science is needed to inform many decisions that affect human health and livelihoods. Hydrological scientists are aware of the importance of their work, and make great efforts to develop relevant research and advice. Decision-makers want to use the best science in their decisions, but rarely read academic papers or ...

Sep. 8, 2015

By IWA Publishing
Assessing differences in snowmelt-dependent hydrologic projections using CMIP3 and CMIP5 climate forcing data for the western United States

Most recent climate change impact studies are using Coupled Model Intercomparison Project Phase 5 (CMIP5) projections to replace older generation CMIP3 projections. Here we evaluate whether differences between projections based on comparable high emission pathways of a seven-member general circulation model CMIP3 versus CMIP5 ensemble change our understanding of the expected hydrologic ...

Sep. 8, 2015

By IWA Publishing
Hydrologic impacts of climate change and urbanization in the Las Vegas Wash Watershed, Nevada

A cell-based model for the Las Vegas Wash Watershed in Clark County, Nevada, USA, was developed by combining the Thornthwaite water balance model and the Soil Conservation Survey's Curve Number method with pixel-based computing technology. After the model was validated, it was used to predict the 2030 and 2050 hydrologic conditions under future scenarios of climate and land-use changes. The ...

Mar. 10, 2016

By IWA Publishing
Simulating the hydrologic response of a semiarid watershed to switchgrass cultivation

The conversion of land from existing uses to biofuel cultivation is expected to increase given concerns about the sustainability of fossil fuel supplies. Nonetheless, research into the environmental impacts of biofuel crops, primarily the hydrological impacts of their cultivation, is in its infancy. To investigate such issues, the response of a 1,649 km2 semiarid basin to the incremental ...

Feb. 12, 2014

By IWA Publishing
Assessing the hydrological impacts of climate change in the headwater catchment of the Tarim River basin, China

Two statistical downscaling models were used to downscale regional climate change scenarios, on the basis of the outputs of three general circulation models (GCMs) and three emission scenarios. Driven by these climate change scenarios, a distributed macro-scale hydrological model (the Variable Infiltration Capacity (VIC) model) was applied to assess the impact of climate change on hydrological ...

Oct. 8, 2013

By IWA Publishing
A hydrological perspective on evaporation: historical trends and future projections in Britain

Evaporation is an important component of the hydrological cycle. Potential evaporation (PE) from a vegetated surface is the amount of water that would be lost to the atmosphere were the supply unlimited; actual evaporation (AE) is a fraction of PE dependent on soil wetness. Many formulae exist for estimating PE from meteorological data. PE is usually a required input, with rainfall, for ...

Aug. 20, 2013

By IWA Publishing
Uncertainty in hydrological modelling of climate change impacts in four Norwegian catchments

Projections for the hydrological impacts of climate change are necessarily reliant on a chain of models for which numerous alternative models and approaches are available. Many of these alternatives produce dissimilar results which can undermine their use in practical applications due to these differences. A methodology for developing climate change impact projections and for representing the ...

Jan. 1, 2011

By IWA Publishing
Projection of runoff and sediment yield under coordinated climate change and urbanization scenarios in Doam dam watershed, Korea

A hydro-environmental model chain in the Doam dam basin, Korea, was developed for an impact assessment under the Intergovernmental Panel on Climate Change's A1B scenario. The feasible downscaling scheme composed of an artificial neural network (ANN) and non-stationary quantile mapping was applied to the GCM (Global Climate Model) output. The impacts under climate and land use change scenarios ...

Oct. 28, 2016

By IWA Publishing
Analysis on LID for highly urbanized areas’ waterlogging control: demonstrated on the example of Caohejing in Shanghai

Although a commonly applied measure across the United States and Europe for alleviating the negative impacts of urbanization on the hydrological cycle, low impact development (LID) has not been widely used in highly urbanized areas, especially in rapidly urbanizing cities in developing countries like China. In this paper, given five LID practices including Bio-Retention, Infiltration Trench, ...

Dec. 19, 2013

By IWA Publishing
Modelling the hydrologic effects of land-use and climate changes

Climate and land use affect water quantity and quality; however, the complex relations of climate and land use regarding flow and instream nutrient levels have yet to be elucidated. This study aims to assess the hydrologic effects of different land-use and climatic regimes in the Lower Great Miami River Basin. The modelling results from BASINS showed that, as expected, agricultural lands and the ...

Apr. 24, 2006

By Inderscience Publishers
Assessment of LID practices for restoring pre-development runoff regime in an urbanized catchment in southern Finland

This study quantifies the effects of common stormwater management techniques on urban runoff generation. Simulated flow rates for different low impact development (LID) scenarios were compared with observed flow rates during different urban construction phases in a catchment (12.3 ha) that was developed from natural forest to a residential area over a monitoring period of 5 years. The Storm ...

May 18, 2015

By IWA Publishing
Downscaling technique uncertainty in assessing hydrological impact of climate change in the Upper Beles River Basin, Ethiopia

We investigate the uncertainty associated with downscaling techniques in climate impact studies, using the Upper Beles River Basin (Upper Blue Nile) in Ethiopia as an example. The main aim of the study is to estimate the two sources of uncertainty in downscaling models: (1) epistemic uncertainty and (2) stochastic uncertainty due to inherent variability. The first aim was achieved by driving a ...

Mar. 20, 2013

By IWA Publishing
Toward an operational tool to simulate green roof hydrological impact at the basin scale: a new version of the distributed rainfall–runoff model Multi-Hydro

Currently widespread in new urban projects, green roofs have shown a positive impact on urban runoff at the building scale: decrease and slow-down of the peak discharge, and decrease of runoff volume. The present work aims to study their possible impact at the catchment scale, more compatible with stormwater management issues. For this purpose, a specific module dedicated to simulating the ...

Aug. 5, 2016

By IWA Publishing
Application of a distributed catchment model to investigate hydrological impacts of climate change within Poyang Lake catchment (China)

The extreme cycles of flood and drought in the Poyang Lake catchment (China) place immense pressure on the region's water users and ecosystems. This study examines potential impacts of future climate change in the Poyang Lake catchment using the popular regional climate model, COSMO-CLM, and a distributed hydrological model, WATLAC. Near-future projections (2016–2035) indicate that the mean ...

Jun. 13, 2016

By IWA Publishing
Modelling climate change impacts on the flood pulse in the Lower Mekong floodplains

The flood pulse is a key element characterizing the hydrology of the Mekong River and driving the high ecosystem productivity in the Lower Mekong floodplains, both in the Cambodian lowlands and the Mekong Delta in Vietnam. This paper assesses the impacts of climate change, both in terms of changed basin water balance and sea level rise, on the Lower Mekong flood pulse. The impacts were simulated ...

Mar. 1, 2010

By IWA Publishing

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