Simon Langan

ORCID: 0000-0003-0742-3658
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About
Contact & Profiles
Research Areas
  • Soil and Water Nutrient Dynamics
  • Hydrology and Watershed Management Studies
  • Water-Energy-Food Nexus Studies
  • Water resources management and optimization
  • Soil erosion and sediment transport
  • Mine drainage and remediation techniques
  • Transboundary Water Resource Management
  • Irrigation Practices and Water Management
  • Soil Carbon and Nitrogen Dynamics
  • Water Quality and Pollution Assessment
  • Fish Ecology and Management Studies
  • Hydrology and Sediment Transport Processes
  • Soil Geostatistics and Mapping
  • Soil and Unsaturated Flow
  • Groundwater and Isotope Geochemistry
  • Rangeland Management and Livestock Ecology
  • Freshwater macroinvertebrate diversity and ecology
  • Groundwater flow and contamination studies
  • Flood Risk Assessment and Management
  • Agricultural Innovations and Practices
  • African history and culture analysis
  • Land Rights and Reforms
  • Energy and Environment Impacts
  • Water Governance and Infrastructure
  • Peatlands and Wetlands Ecology

International Water Management Institute
2013-2024

International Institute for Applied Systems Analysis
2016-2024

International Food Policy Research Institute
2022-2024

International Water Management Institute
2013-2020

Mekelle University
2016

Stockholm Environment Institute
2014

Bahir Dar University
2014

International Crops Research Institute for the Semi-Arid Tropics
2013

James Hutton Institute
2012-2013

Macaulay Development Trust
1994-2010

Understanding the interplay between multiple climate change risks and socioeconomic development is increasingly required to inform effective actions manage these pursue sustainable development. We calculate a set of 14 impact indicators at different levels global mean temperature (GMT) covering water, energy land sectors from an ensemble climate, integrated assessment models. The analysis includes changes in drought intensity water stress index, cooling demand heat event exposure, habitat...

10.1088/1748-9326/aabf45 article EN cc-by Environmental Research Letters 2018-04-19

Abstract Seasonal mismatches between electricity supply and demand is increasing due to expanded use of wind, solar hydropower resources, which in turn raises the interest on low-cost seasonal energy storage options. pumped (SPHS) can provide long-term at a relatively co-benefits form freshwater capacity. We present first estimate global assessment SPHS potential, using novel plant-siting methodology based high-resolution topographical hydrological data. Here we show that costs vary from...

10.1038/s41467-020-14555-y article EN cc-by Nature Communications 2020-02-19

Abstract. A framework of guiding recommendations for effective pre-flood and flood warning communications derived from the URFlood project (2nd ERA-Net CRUE Research Funding Initiative) extensive quantitative qualitative research in Finland, Ireland, Italy Scotland is presented. Eleven case studies fluvial, pluvial, coastal, residual "new" risk locations were undertaken. The developed questionnaire surveys by exploring statistical correlations actions understandings individuals situations to...

10.5194/nhess-12-2271-2012 article EN cc-by Natural hazards and earth system sciences 2012-07-20

Abstract. Planning for drought relief and floods in developing countries is greatly hampered by the lack of a sufficiently dense network weather stations measuring precipitation. In this paper, we test utility three satellite products to augment ground-based precipitation measurement provide improved spatial estimates rainfall. The are Tropical Rainfall Measuring Mission (TRMM) product (3B42), Multi-Sensor Precipitation Estimate–Geostationary (MPEG) Climate Forecast System Reanalysis (CFSR)....

10.5194/hess-18-4871-2014 article EN cc-by Hydrology and earth system sciences 2014-12-05

Assessing global water quality issues requires a multi-pollutant modelling approach. We discuss scientific challenges and future directions for such modeling. Multi-pollutant river models need to integrate information on sources of pollutants as plastic debris, nutrients, chemicals, pathogens, their effects possible solutions. In this paper, we first explain what consider modelling. Second, in relating consistent model inputs, approaches evaluation. Next, illustrate the potential hotspot...

10.1016/j.cosust.2018.11.004 article EN cc-by-nc-nd Current Opinion in Environmental Sustainability 2018-12-01

Digital innovations can enhance the participation of often-marginalized social groups – including women and resource-poor farmers in low- middle-income countries sustainable, profitable food systems. But digital interventions also reinforce existing inequities by further increasing competitive advantage user privileged with literacy, access to smartphones, or high investment capacity. To ensure that transformation Global South leaves no one behind, therefore, deliberate efforts are needed...

10.1016/j.agsy.2024.103882 article EN cc-by-nc Agricultural Systems 2024-01-31

Establishing vegetated buffer strips (VBS) between cropland and watercourses is currently promoted as a principal control of diffuse pollution transport. However, we lack the mechanistic understanding to evaluate P retention in VBS predict risks transport aquatic ecosystems. We observed that establishment led enhanced rates soil cycling, increasing solubility potential amount leached watercourses. Soil VBS, relative adjacent fields, had increased inorganic indices, dissolved organic P,...

10.1021/es8030193 article EN Environmental Science & Technology 2009-02-18

• Global WQ models need sufficient consideration of mechanistic understanding. Multiscale modeling facilitates more consistent water management across scales. Process-based parsimonious are proposed for global model development. Water requires active collaboration among modelers and policy-makers. quality (WQ) is an emerging field. In this article, we identify the missing linkages between basin/local-scale models, discuss possibilities to fill these gaps. We argue that stronger spatial This...

10.1016/j.cosust.2018.10.004 article EN cc-by-nc-nd Current Opinion in Environmental Sustainability 2018-11-06

Abstract This study presents the development of a new bottom‐up large‐scale hydroeconomic model, Extended Continental‐scale Hydroeconomic Optimization (ECHO), that works at subbasin scale over continent. The strength ECHO stems from integration detailed representation local hydrological and technological constraints with regional global policies, while accounting for feedbacks between water, energy, agricultural sectors. In this study, has been applied Africa as case aim demonstrating...

10.1029/2017wr022478 article EN cc-by-nc-nd Water Resources Research 2018-09-19

Quantitative modelling is commonly used to assist the policy dimension of sustainability problems. Validation an important step make models credible and useful. To investigate existing validation viewpoints approaches, we analyse a broad academic literature conduct survey among practitioners. We find that empirical data plays role in practice all main areas science. Qualitative participatory approaches can enhance usefulness public reliability are much less visible. Data-oriented prevalent...

10.1038/s41467-018-07811-9 article EN cc-by Nature Communications 2018-12-12

The Indus River Basin covers an area of around 1 million square kilometers and connects four countries: Afghanistan, China, India, Pakistan. More than 300 people depend to some extent on the basin's water, yet a growing population, increasing food energy demands, climate change, shifting monsoon patterns are exerting pressure. Under these pressures, "business as usual" (BAU) approach is no longer sustainable, decision makers wider stakeholders calling for more integrated inclusive...

10.1016/j.oneear.2019.10.006 article EN cc-by One Earth 2019-10-01

Abstract This paper presents one of the first quantitative scenario assessments for future water supply and demand in Asia to 2050. The assessment, developed by Water Futures Solutions ( WFaS ) initiative, uses latest set global climate change socioeconomic scenarios state‐of‐the‐art hydrological models. In Asia, irrigation, industry, households is projected increase substantially coming decades (30–40% 2050 compared 2010). These changes are expected exacerbate stress, especially current...

10.1002/2016ef000503 article EN cc-by-nc-nd Earth s Future 2017-05-17

Abstract Ecological restoration through exclosure establishment has become an increasingly important approach to reversing degraded ecosystems in rangelands worldwide. The present study was conducted northwestern Ethiopia where policy programs are aiming restore lands. Changes soil properties following establishing exclosures on communal grazing lands were investigated. A space‐for‐time substitution used monitor changes after conversion of with ages ranging from 1 7 years. Significant...

10.1002/ldr.2527 article EN Land Degradation and Development 2016-04-10
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