GLOBAL SYSTEMS INSTITUTE

Publications

Methods for Preserving Duration–Intensity Correlation on Synthetically Generated Water-Demand Pulses

Publication ID: pub.1057645412

Publication date: 15/10/2015

Keywords: Correlation; Demand Pulses; Duration; Gaussian Copula; Iman-Conover; Intensity; Milford; Ohio; US; Water Demand

This paper proposes the application of three different methods for preserving the correlation between duration and intensity of synthetically generated water-demand pulses. The first two methods, that is, the Iman and Conover method and the Gaussian copula, respectively, are derived from known statistical approaches, although they had never been applied to the context of demand-pulse […]

Reduced Risk of North American Cold Extremes due to Continued Arctic Sea Ice Loss

Publication ID: pub.1014432689

Publication date: 05/10/2015

Keywords: Arctic Sea Ice Loss; Century; Climate Change; Daily Cold Extremes; Driver; Greenhouse Gases; Midlatitudes; Model Simulations; North America; North America Cold Extremes; Projected; Risk

Abstract In early January 2014, an Arctic air outbreak brought extreme cold and heavy snowfall to central and eastern North America, causing widespread disruption and monetary losses. The media extensively reported the cold snap, including debate on whether human-induced climate change was partly responsible. Related to this, one particular hypothesis garnered considerable attention: that rapid […]

Performance evaluation of conventional and water saving taps

Publication ID: pub.1040670610

Publication date: 02/10/2015

Keywords: Carbon Emissions; Energy Consumption; Event Duration; Exeter; Low Flow Rates; Micro-components; Taps; UK; University of Exeter; Water Efficiency

The rapid pace of urbanisation comes with considerable environmental implications including pressures on already stressed limited water resources. In urban areas, most of the water use is associated with water consumption in buildings. The second largest use of water is via taps. It is often assumed that water taps with low flow rates can contribute […]

Southern Ocean buoyancy forcing of ocean ventilation and glacial atmospheric CO2

Publication ID: pub.1024630370

Publication date: 28/09/2015

Keywords: Antarctic; Atmospheric CO2; Buoyancy Forcing; Carbon Sequestration; Circulation Model; Glacial; Ocean Ventilation; Southern Ocean; Temperature Variations; Upwelling

Ocean circulation and dynamics can alter atmospheric CO2 concentrations. Numerical modelling suggests that shifts in surface buoyancy loss and the location of upwelling can sequester CO2 in the Southern Ocean during glacial periods.

Large rainfall changes consistently projected over substantial areas of tropical land

Publication ID: pub.1027603429

Publication date: 28/09/2015

Keywords: Climate Change; Climate Model Projections; Drought; Emissions Scenario; Flood; Global; Mitigation Policy; Rainfall Changes; Regional; Tropical Land; Uncertainty; Vulnerable

This study quantifies a direct link between global greenhouse gas emissions and rainfall changes over tropical land, and identifies regions most at risk of large changes, such as southern and east Africa.

After more than a decade of soil moisture deficit, tropical rainforest trees maintain photosynthetic capacity, despite increased leaf respiration

Publication ID: pub.1024633801

Publication date: 22/09/2015

Keywords: Brazil; Carbon Cycle; Climate Change; Droughts; Eastern Amazonian Forest; Photosynthesis; Plant Leaves; Plant Transpiration; Rainforest; Seasons; Soil; Trees; Tropical Climate

Determining climate change feedbacks from tropical rainforests requires an understanding of how carbon gain through photosynthesis and loss through respiration will be altered. One of the key changes that tropical rainforests may experience under future climate change scenarios is reduced soil moisture availability. In this study we examine if and how both leaf photosynthesis and […]