Publications
188 results found
Denamiel C, Budgell WP, Toumi R, 2013, The Congo River plume: Impact of the forcing on the far-field and near-field dynamics, JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, Vol: 118, Pages: 964-989, ISSN: 2169-9275
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- Citations: 34
Singleton A, Toumi R, 2013, Super-Clausius-Clapeyron scaling of rainfall in a model squall line, QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, Vol: 139, Pages: 334-339, ISSN: 0035-9009
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- Citations: 70
Nissan H, Clarke J, Oliviera S, et al., 2012, Adapting to climate change: A regional climate model study of the Caucasus, Pages: 2049-2056
Adapting to climate change requires new tools and processes within the oil and gas sector. In this paper we present a potential adaptation process. We also discuss the results of an investigation using the Regional Environmental Modelling System (ReEMS). ReEMS is being used to revise design criteria of infrastructure. Using the Caucasus as a case study we examine the hypothesis that air temperature change can be a proxy for extreme rainfall change. Climate simulations have been performed over a two decade-long period to emulate a recent past and future climate scenario. Mean and extreme precipitation changes are shown to be decoupled. Clausius-Clapeyron scaling is considered to be a good estimator for changes in modelled extreme precipitation with temperature. The similarity between the theoretical and modelled climate results is closer for more extreme rainfall and is also found to depend on the region over which the comparison is made. Copyright 2012, SPE/APPEA International Conference on Health, Safety, and Environment in Oil and Gas Exploration and Production.
Farley Nicholls J, Toumi R, Budgell WP, 2012, Inertial currents in the Caspian Sea, GEOPHYSICAL RESEARCH LETTERS, Vol: 39, ISSN: 0094-8276
Benn DI, Bolch T, Hands K, et al., 2012, Response of debris-covered glaciers in the Mount Everest region to recent warming, and implications for outburst flood hazards, EARTH-SCIENCE REVIEWS, Vol: 114, Pages: 156-174, ISSN: 0012-8252
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- Citations: 379
White R, Toumi R, 2012, A tightly bound soil-water scheme within an atmosphere-land-surface model, JOURNAL OF HYDROLOGY, Vol: 452, Pages: 51-63, ISSN: 0022-1694
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- Citations: 5
Giannakopoulou E-M, Toumi R, 2012, Impacts of the Nile Delta land-use on the local climate, ATMOSPHERIC SCIENCE LETTERS, Vol: 13, Pages: 208-215, ISSN: 1530-261X
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- Citations: 8
Sondergaard RR, Makris T, Lianos P, et al., 2012, The use of polyurethane as encapsulating method for polymer solar cells-An inter laboratory study on outdoor stability in 8 countries, SOLAR ENERGY MATERIALS AND SOLAR CELLS, Vol: 99, Pages: 292-300, ISSN: 0927-0248
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- Citations: 32
Smedley ARD, Rimmer JS, Moore D, et al., 2012, Total ozone and surface UV trends in the United Kingdom: 1979-2008, INTERNATIONAL JOURNAL OF CLIMATOLOGY, Vol: 32, Pages: 338-346, ISSN: 0899-8418
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- Citations: 34
Spurny P, Bland PA, Shrbeny L, et al., 2012, The Bunburra Rockhole meteorite fall in SW Australia: fireball trajectory, luminosity, dynamics, orbit, and impact position from photographic and photoelectric records, METEORITICS & PLANETARY SCIENCE, Vol: 47, Pages: 163-185, ISSN: 1086-9379
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- Citations: 50
Oda T, Ganshin A, Saito M, et al., 2012, The use of a high-resolution emission data set in a global eulerian-lagrangian coupled model, Geophysical Monograph Series, Vol: 200, Pages: 173-183
We present a method to simulate atmospheric tracer concentration at a high spatiotemporal scale by coupling a Lagrangian particle dispersion model and a global Eulerian transport model. In this paper, we used the global Eulerian- Lagrangian coupled atmospheric transport model that has a capability of accommodating a high-resolution emission data set. Hourly atmospheric CO 2 at three different sites over winter months (December, January, and February) were simulated. Model performance was measured by comparing observations relative to a control run implemented by the single Eulerian model. We also examined the inclusion of fossil fuel CO2 emission data sets at a high spatial resolution by using two data sets prepared at different spatial resolutions (1° and 1 km resolution). The model performance, such as accuracy, bias, and reproducibility of concentration variation, was improved by the use of the Eulerian-Lagrangian coupling method as well as the fossil fuel CO2 emission data set prepared at higher spatial resolution. However, the model tends to overestimate observations compared to the control run. The improvement in accuracy and bias was found at simulations of measurements with high CO2 concentration where global Eulerian models, in general, could underestimate due to the lack of regional depiction in their aggregated, prescribed emissions. This study suggests that Eulerian-Lagrangian coupling could improve the model reproducibility of observed CO2 by reducing flux aggregation error, though error due to mismatch in spatiotemporal scale between wind fields and emission data still remains in our current model setup. In particular, the inclusion of high-resolution fossil fuel CO2 emission data would benefit atmospheric CO2 simulations at locations where local anthropogenic contributions are predominant. © 2012. American Geophysical Union. All Rights Reserved.
Giannakopoulou EM, Toumi R, 2012, The Persian Gulf summertime low-level jet over sloping terrain, QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, Vol: 138, Pages: 145-157, ISSN: 0035-9009
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- Citations: 42
Ganshin A, Oda T, Saito M, et al., 2012, A global coupled Eulerian-Lagrangian model and 1 x 1 km CO<sub>2</sub> surface flux dataset for high-resolution atmospheric CO<sub>2</sub> transport simulations, GEOSCIENTIFIC MODEL DEVELOPMENT, Vol: 5, Pages: 231-243, ISSN: 1991-959X
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- Citations: 28
Davies L, Bell JN, Bone J, et al., 2011, Open Air Laboratories (OPAL): a community-driven research programme., Environmental Pollution, Vol: 159, Pages: 2203-2210
OPAL is an English national programme that takes scientists into the community to investigate environmental issues. Biological monitoring plays a pivotal role covering topics of: i) soil and earthworms; ii) air, lichens and tar spot on sycamore; iii) water and aquatic invertebrates; iv) biodiversity and hedgerows; v) climate, clouds and thermal comfort. Each survey has been developed by an inter-disciplinary team and tested by voluntary, statutory and community sectors. Data are submitted via the web and instantly mapped. Preliminary results are presented, together with a discussion on data quality and uncertainty. Communities also investigate local pollution issues, ranging from nitrogen deposition on heathlands to traffic emissions on roadside vegetation. Over 200,000 people have participated so far, including over 1000 schools and 1000 voluntary groups. Benefits include a substantial, growing database on biodiversity and habitat condition, much from previously unsampled sites particularly in urban areas, and a more engaged public.
Ryder CL, Toumi R, 2011, An urban solar flux island: Measurements from London, ATMOSPHERIC ENVIRONMENT, Vol: 45, Pages: 3414-3423, ISSN: 1352-2310
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- Citations: 7
Sparks N, Toumi R, 2010, Remote sampling of a CO<sub>2</sub> point source in an urban setting, ATMOSPHERIC ENVIRONMENT, Vol: 44, Pages: 5287-5294, ISSN: 1352-2310
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- Citations: 16
Haigh JD, Winning AR, Toumi R, et al., 2010, An influence of solar spectral variations on radiative forcing of climate, NATURE, Vol: 467, Pages: 696-699, ISSN: 0028-0836
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- Citations: 186
Pejovic T, Noland RB, Williams V, et al., 2009, A tentative analysis of the impacts of an airport closure, JOURNAL OF AIR TRANSPORT MANAGEMENT, Vol: 15, Pages: 241-248, ISSN: 0969-6997
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- Citations: 27
Reifen C, Toumi R, 2009, Climate projections: Past performance no guarantee of future skill?, GEOPHYSICAL RESEARCH LETTERS, Vol: 36, ISSN: 0094-8276
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- Citations: 115
Pejovic T, Williams VA, Noland RB, et al., 2009, Factors Affecting the Frequency and Severity of Airport Weather Delays and the Implications of Climate Change for Future Delays, 88th Annual Meeting of the Transportation-Research-Board, Publisher: NATL ACAD SCIENCES, Pages: 97-106, ISSN: 0361-1981
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- Citations: 30
Anderson BT, Reifen C, Toumi R, 2009, Consistency in Global Climate Change Model Predictions of Regional Precipitation Trends, EARTH INTERACTIONS, Vol: 13
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- Citations: 2
Anderson BT, Reifen C, Toumi R, 2009, Identification of Nonlinear Behavior in Transient Climate Change Projections of Soil Moisture over the United States, EARTH INTERACTIONS, Vol: 13
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- Citations: 1
Rigby M, Toumi R, Fisher R, et al., 2008, First continuous measurements of CO<sub>2</sub> mixing ratio in central London using a compact diffusion probe, ATMOSPHERIC ENVIRONMENT, Vol: 42, Pages: 8943-8953, ISSN: 1352-2310
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- Citations: 33
Pejovic T, Noland RB, Williams V, et al., 2008, Estimates of UK CO<sub>2</sub> emissions from aviation using air traffic data, CLIMATIC CHANGE, Vol: 88, Pages: 367-384, ISSN: 0165-0009
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- Citations: 24
Rigby M, Toumi R, 2008, London air pollution climatology: Indirect evidence for urban boundary layer height and wind speed enhancement, ATMOSPHERIC ENVIRONMENT, Vol: 42, Pages: 4932-4947, ISSN: 1352-2310
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- Citations: 22
Smith S, Toumi R, 2008, Direct observation of cloud forcing by ground-based thermal imaging, GEOPHYSICAL RESEARCH LETTERS, Vol: 35, ISSN: 0094-8276
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- Citations: 4
Smith S, Toumi R, 2008, Measuring cloud cover and brightness temperature with a ground-based thermal infrared camera, JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY, Vol: 47, Pages: 683-693, ISSN: 1558-8424
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- Citations: 25
Williams V, Noland RB, Majumdar A, et al., 2007, Reducing environmental impacts of aviation with innovative air traffic management technologies, AERONAUTICAL JOURNAL, Vol: 111, Pages: 741-749, ISSN: 0001-9240
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- Citations: 6
Rigby M, Timmis R, Toumi R, 2006, Similarities of boundary layer ventilation and particulate matter roses, ATMOSPHERIC ENVIRONMENT, Vol: 40, Pages: 5112-5124, ISSN: 1352-2310
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- Citations: 17
Patmore N, Toumi R, 2006, An entropy-based measure of mixing at the tropopause, QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, Vol: 132, Pages: 1949-1967, ISSN: 0035-9009
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- Citations: 7
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