hydrology project Articles

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
The role of conceptual hydrologic model calibration in climate change impact on water resources assessment

Assessment of climate change (CC) impact on hydrologic regime requires a calibrated rainfall-runoff model, defined by its structure and parameters. The parameter values depend, inter alia, on the calibration period. This paper investigates influence of the calibration period on parameter values, model efficiency and streamflow projections under CC. To this end, a conceptual HBV-light model of ...

Jun. 15, 2015

By IWA Publishing
Well Identification and Environmental Management, A Lesson in Standards and Data Management

This powerpoint, Well Identification and Environmental Management, A Lesson in Standards and Data Management, was given by Keith Fraley from Shell Exploration and Production at the ESRI Petroleum User Group Conference in February 2008. It describes an approach for collection and storage of hydrology sampling event results for a project consisting of about 600 wells and 400,000 analytical results. ...

Feb. 25, 2008

By EarthSoft, Inc
Hydrological projections based on the coupled hydrological–hydraulic modeling in the complex river network region: a case study in the Taihu basin, China

Water resources in the Taihu basin, China, are not only facing the effects of a changing climate but also consequences of an intensive urbanization process with the abandonment of rural activities and the resulting changes in land use/land-cover. In the present work, the impact of climate change and urbanization on hydrological processes was assessed using an integrated modeling system, ...

Jun. 1, 2015

By IWA Publishing
Hydro-ecological effects of changing Arctic river and lake ice covers: a review

Freshwater ice is an integral part of the hydrologic regimes of cold environments. It controls the ecology of related aquatic systems and is important economically, through the facilitation of winter transport and via generation of extreme hydrologic events. Given projected changes in future climate, concern has been raised about related changes in freshwater ice. This paper reviews the status ...

Dec. 1, 2010

By IWA Publishing
Communicating modeled information for adaptation decision making

The HighNoon project, which began in 2009, set out to assess the impact Himalayan glacier retreat and expected changes in the Indian summer monsoon on the distribution of water resources in Northern India. The project’s aim was “to recommend appropriate and efficient response strategies to enable adaptation to hydrological extreme events.” The project used information from ...

Sep. 1, 2012

By World Resources Institute WRI
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
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
Water resource management in a variable and changing climate: hypothetical case study to explore decision making under uncertainty

This paper investigates what information water resource managers think they need to make decisions on climate change adaptation. This is achieved through a hypothetical case study where participants, all actual water resource managers or in research, practitioner or administration roles linked to Australian water resources management, were given theoretical future climate scenarios and asked ...

Nov. 6, 2015

By IWA Publishing
Hydrologic sensitivity of the Upper San Joaquin River Watershed in California to climate change scenarios

To examine the hydrological system sensitivity of the southern Sierra Nevada Mountains of California to climate change scenarios (CCS), five headwater basins in the snow-dominated Upper San Joaquin River Watershed (USJRW) were selected for hydrologic simulations using the Hydrological Simulation Program-Fortran (HSPF) model. A pre-specified set of CCS as projected by the Intergovernmental Panel ...

Jul. 17, 2013

By IWA Publishing
A comparison between direct and indirect frameworks to evaluate impacts of climate change on streamflows: case study of Karkheh River basin in Iran

In this paper, two approaches to assess the impacts of climate change on streamflows have been used. In the first approach (direct), a statistical downscaling technique was utilized to predict future streamflows based on large-scale data of general circulation models (GCMs). In the second approach (indirect), GCM outputs were downscaled to produce local climate conditions which were then used ...

Jun. 15, 2017

By IWA Publishing
UW Researchers Reveal Secrets of Subsurface Water Storage

Overview In recent years, an intrepid team of University of Wyoming researchers conducted a multi-site project to explore subsurface hydrology in and around the Laramie Range and expand our understanding of this critical water source for the western U.S. Challenge In the semi-arid western United States, every drop of water counts, especially as a growing population and climate change stress ...

Feb. 11, 2020

By In-Situ, Inc.
Flood protection in Miami Dade county - Case Study

Introduction: Miami-Dade County has experienced remarkable growth over the past thirty years, with a population that has grown to 2.3 million. Consequently, difficulties exist in maintaining a stormwater management system that meets the increased needs of the community. Unusually large precipitation events in 1999 and 2000 caused flooding in some Miami neighborhoods that were built in low-lying ...

Mar. 2, 2012

By Innovyze
Regional climate change and adaptation

Spanning the centre of continental Europe, the Alps play a crucial role in accumulating and supplying water to the continent. Recognised as the 'water towers of Europe', the mountains host most of the headwaters of the rivers Danube, Rhine, Po and Rhone; as such, they deliver vital ecosystem services both within and beyond the region, underpinning social and economic wellbeing in vast lowland ...

Aug. 1, 2009

By European Environment Agency (EEA)
Reconciling hydrology with engineering

Hydrology has played an important role in the birth of science. Yet practical hydrological knowledge, related to human needs for water storage, transfer and management, existed before the development of natural philosophy and science. In contemporary times, hydrology has had strong links with engineering as its development has been related to the needs of the design and management of water ...

Feb. 12, 2014

By IWA Publishing
Possible impacts of the Poyang Lake (China) hydraulic project on lake hydrology and hydrodynamics

Flow regime change is the leading driving force in the evolution of lacustrine ecological systems. According to the planned water level regulation scheme of the Poyang Lake hydraulic project (PLHP), this research discusses the possible impacts of PLHP on the hydrology and hydrodynamics of Poyang Lake (China) using the method of scenario simulation. The results show that a controlled water ...

Jun. 14, 2016

By IWA Publishing
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
Assessing water demands and coverage sensitivity to climate change in the urban and rural sectors in central Chile

Snow dominated basins in the subtropics are susceptible to climate change, since evaporation and streamflows are affected, impacting key water sectors and increasing the risk of water shortages. This paper shows an integrated assessment of the impacts of climate change on the major water users in the Maipo Basin of Chile, allowing a direct comparison between competing sectors, describing their ...

Jun. 5, 2014

By IWA Publishing
Implications of climate change for water resources development in the Ganges basin

This paper presents the first basin-wide assessment of the potential impact of climate change on the hydrology and production of the Ganges system, undertaken as part of the World Bank's Ganges Strategic Basin Assessment. A series of modeling efforts – downscaling of climate projections, water balance calculations, hydrological simulation and economic optimization – inform ...

Oct. 2, 2013

By IWA Publishing
Spatio-temporal variability in the thermal regimes of the Danjiangkou reservoir and its downstream river due to the large water diversion project system in central China

Understanding water temperature variation in regulated rivers and reservoirs becomes increasingly important as the environment and ecosystem are approaching their thermal limits. In this paper, a multi-model approach is used to quantitatively access the spatio-temporal change in thermal structures of the Danjiangkou reservoir and its downstream river. The area is subject to thermal and ...

Jun. 18, 2015

By IWA Publishing

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