rainfall modeling News

  • Climate models may be overestimating the cooling effect of wildfire aerosols

    Original story at MIT News Whether intentionally set to consume agricultural waste or naturally ignited in forests or peatlands, open-burning fires impact the global climate system in two ways which, to some extent, cancel each other out. On one hand, they generate a significant fraction of ...

  • Aerosols – their part in our rainfall

    “We have identified that the extensive pollution haze emanating from Asia may be re-shaping rainfall patterns in northern Australia but we wonder what impact natural and human-generated aerosols are having across the rest of the country,” Dr Rotstayn said. Aerosols are fine particles suspended in the atmosphere. Sources of human-generated aerosols include industry, motor vehicles and vegetation ...

  • Rainfall patterns cloud climate changes

    The 20th century was neither much drier nor wetter for half the globe than many of its predecessors, European scientists say. On the contrary, they say several centuries in the last 1,200 years experienced much more variable rain and drought than the 1900s. Their findings, which are published with several caveats and which have not so far been replicated, differ markedly from the conclusions ...


    By Climate News Network

  • Torrential rainfall a common climate feature in the future

    Changes in the climate are expected to result in heavier rainfall. Calculations with climate models show that a heavy downpour will give 20-30 per cent more rain at the turn of the next century. Thunder showers and torrential rainfall in the summer are part of what, in technical jargon, is called extreme or intensive short-term precipitation. “Intensive short-term ...

  • Climate change may boost Middle East rainfall

    The prospect of climate change sparking food and water shortages in the Middle East is less likely than previously thought, with new research by an Australian climate scientist suggesting that rainfall will be significantly higher in key parts of the region. Recent projections from the Intergovernmental Panel on Climate Change (IPCC) raised fears that storm activity in the eastern Mediterranean ...

  • African rainfall data `will improve climate predictions`

    A comprehensive 30-year dataset of African rainfall could soon help test climate change predictions and improve climate models, according to a UK researcher. David Grimes, who studies satellite data at the University of Reading, told SciDev.Net that his group will release the complete, open-access data set within a ...


    By SciDev.Net

  • Impacts of groundwater on local rainfall under a changing climate

    Climate change is expected to bring hotter conditions to many important agricultural regions. This will affect rates of evaporation from the ground and may also have an impact on local rainfall patterns. A recent study suggests that the depth of groundwater may determine the susceptibility of a region to drought following changes in temperature and rainfall. Understanding the transfer of water ...

  • Deforestation may boost rainfall on West African cropland

    The many negative effects of deforestation are well-known, but scientists have shown that farmers may derive one advantage from planting in deforested areas that are sandwiched between patches of forest. Converting ...


    By SciDev.Net

  • Rainfall`s link to carbon emissions quantified

    Two studies published in Nature this week have demonstrated a direct link between rising greenhouse gas levels and severe rainfall events. Scientists compared rainfall predictions from eight climate models with data from weather stations around the Northern Hemisphere. Gabriele Hegerl, a climate researcher at the University of Edinburgh, United Kingdom, told NatureNews: "We can now say with some ...


    By SciDev.Net

  • Latest technique in climate forecasts shows decrease in UK summer rainfall

    Results from the latest multiple model ensemble techniques in climate change forecasting, published by Britain's Royal Society, indicate that average summer rainfall for northern Europe could decrease by between 5 and 20 per cent by the end of the century. The findings use Met Office Hadley Centre climate simulations in a multiple model ensemble. This method has been pioneered by climate research ...


    By The Met Office

  • Ups-and-downs of Indian monsoon rainfall likely to increase under warming

    “Increased variability – this rather technical term translates into potentially severe impacts on people who cannot afford additional loss,” says Anders Levermann, one of the study’s authors and co-chair of PIK’s research domain Sustainable Solutions. “The fact that all these different models agree is a clear message that adaptation measures can be built ...

  • NASA Study Projects Warming-Driven Changes In Global Rainfall

    A NASA-led modeling study provides new evidence that global warming may increase the risk for extreme rainfall and drought. The study shows for the first time how rising carbon dioxide concentrations could affect the entire range of rainfall types on Earth. Analysis of computer simulations from 14 climate models indicates wet regions of the world, such as the equatorial Pacific Ocean and Asian ...

  • Record heat and record rainfall. Climate change has altered the GCC’s weather systems and increased the risk and regularity of extreme weather events

    In order to support improvement in GCC weather forecasting ability Advanced Conferences and Meetings (ACM) launched the WeatherTech GCC conference in 2015 the first event of its kind in the region to provide a platform to discuss optimization of next generation technologies to revolutionize the collection, analysis and distribution of weather forecasting data in the GCC.  This year ...

  • ASTM D6459 - 11 standard test method for determination of Rolled Erosion Control Product (RECP) performance in protecting hillslopes from rainfall-induced erosion

    This test method evaluates RECPs and their means of installation to 5.1.1 Reduce soil loss and sediment concentrations in stormwater runoff under conditions of varying rainfall intensity and soil type, and; 5.1.2 Improve water quality exiting the area disturbed by earthwork activity by reducing suspended solids. This test method ...


    By ASTM International

  • ISIS FAST flood assessment model

    Halcrow is to release ISIS FAST in April 2011. Since showcasing this solution at the Flood and Coastal Risk Management (FCRM10) conference in Telford, UK, and at the ISIS User Conference, ISIS FAST is a new rapid inundation model designed and developed by Halcrow to allow quick assessment of flooding using simplified hydraulics. ISIS FAST provides results up to 1,000 times faster than ...

  • Advanced stormwater and river modelling and management

    The City of Austin, USA, has selected MWH Soft"s InfoWorks SD and InfoWorks RS for advanced stormwater and river modelling and management. Situated on the Colorado River, the city has three man-made lakes within its limits: Lady Bird Lake, Lake Austin, and Lake Walter E. Long, all on the river. The foot of Lake Travis, including Mansfield Dam, is also located within the city limits. This complex ...


    By Innovyze

  • Advanced stormwater and river modeling and management

    The City of Austin, TX, has selected MWH Soft"s InfoWorks SD and InfoWorks RS for advanced stormwater and river modeling and management. Situated on the Colorado River, the city has three man-made lakes within its limits: Lady Bird Lake, Lake Austin, and Lake Walter E. Long, all on the river. The foot of Lake Travis, including Mansfield Dam, is also located within the city limits. This complex ...


    By Innovyze

  • Advanced stormwater and river modelling and management

    The City of Austin, USA, has selected MWH Soft"s InfoWorks SD and InfoWorks RS for advanced stormwater and river modelling and management. Situated on the Colorado River, the city has three man-made lakes within its limits: Lady Bird Lake, Lake Austin, and Lake Walter E. Long, all on the river. The foot of Lake Travis, including Mansfield Dam, is also located within the city limits. This complex ...

  • Scientists develop improved groundwater forecasting model

    Scientists in India have developed a more efficient computing model to predict monthly changes in groundwater, which is depleted in many areas of developing countries because of damaged soils and poor irrigation practices. A team of scientists based in India's four southern states used the concept of an 'artificial neural network' (ANN), a computing technique that mimics the way millions of ...


    By SciDev.Net

  • Global climate models `need regional sensitivity`

    Global climate change models are of limited use to agricultural policymakers in some regions of the developing world, according to a report by the CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS). The report ...


    By SciDev.Net

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