Knee K.,RPS ASA |
Howlett E.,RPS ASA |
Wilcox K.,RPS ASA |
Clauzet G.,RPS ASA |
And 4 more authors.
OCEANS 2012 MTS/IEEE: Harnessing the Power of the Ocean | Year: 2012
The Dubai Operational Forecasting System couples a suite of meteorology and ocean models with data management infrastructure and web-based information tools. This infrastructure efficiently generates and disseminates three-day forecasts of winds, wave, and currents. The forecast system implements the latest open-source modelling technology from the research and academic communities to build an operational system that is a suite of interconnected components that allows for seamless interaction of meteorological and oceanographic models, real-time data, and client-defined custom web-based reports and tools that access model forecasts and real-time observations. The system integrates a number of components including operational numerical modelling, Arabian Gulf meteorology, offshore and coastal hydrodynamic models, offshore and nearshore wave models, coastal inundation, connection to the Dubai Ocean Observing system for real-time data integration, web-based data management and data distribution, and a fully interactive, web-based client for data display and analysis. The web based client includes tools for disseminating coastal safety warning organized by coastal region, an operational oil spill forecasting system, and a time slider for animating the temporally varying forecast data. © 2012 IEEE.
Taylor J.,University of Salford |
Akanji T.,Mobil Producing Nigeria Unlimited |
Shaikh A.A.,Dubai Municipality |
Collison F.,Food Safety Consultancy
Worldwide Hospitality and Tourism Themes | Year: 2011
Purpose: The purpose of this paper is to identify whether barriers and solutions to food safety management identified in the UK hospitality businesses between 2002 and 2005 have broader global relevance. It is the first paper in a themed issue of Worldwide Hospitality and Tourism Themes presenting international food safety management challenges and solutions. Design/methodology/approach: In-depth interviews, supported by documentary analysis, in restaurants and hotels in Barbados, Dubai, Nigeria and Oman. Findings: Recent research in Barbados, Dubai, Nigeria and Oman supports the findings of parallel UK research between 2002 and 2005, showing that the barriers to food safety management are likely to have global relevance, and also the potential for global solutions. Practical implications: The paper will be of value to practitioners, researchers and other stakeholders involved in the food industry. Originality/value: This paper presents a collection of in-depth, discovery-based research studies in a diverse range of countries. © Emerald Group Publishing Limited.
Elhakeem A.,Dubai Municipality |
Elshorbagy W.,MWH Global Middle East
Marine Pollution Bulletin | Year: 2015
A comprehensive basin wide hydrodynamic evaluation has been carried out to assess the long term impacts of climate change and coastal effluents on the salinity and seawater temperature of the Arabian Gulf (AG) using Delft3D-Flow model. The long term impacts of climate change scenarios A2 and B1 of the IPCC-AR4 on the AG hydrodynamics were evaluated. Using the current capacity and production rates of coastal desalination, power, and refinery plants, two projection scenarios until the year 2080 with 30. year intervals were developed namely the realistic and the optimistic discharge scenarios. Simulations of the individual climate change scenarios ascertained overall increase of the AG salinity and temperature and decrease of precipitation. The changes varied spatially with different scenarios as per the depth, proximity to exchange with ocean water, flushing, vertical mixing, and flow restriction. The individual tested scenarios of coastal projected discharges showed significant effects but within 10-20. km from the outfalls. © 2015 Elsevier Ltd.
Abdulmuttalib H.,Dubai Municipality
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives | Year: 2016
Zaidi F.K.,King Saud University |
Nazzal Y.,King Saud University |
Nazzal Y.,Abu Dhabi University |
Jafri M.K.,King Saud University |
And 2 more authors.
Environmental Monitoring and Assessment | Year: 2015
Assessment of groundwater quality is of utmost significance in arid regions like Saudi Arabia where the lack of present-day recharge and high evaporation rates coupled with increasing groundwater withdrawal may restrict its usage for domestic or agricultural purposes. In the present study, groundwater samples collected from agricultural farms in Hail (15 samples), Al Jawf (15 samples), and Tabuk (30 samples) regions were analyzed for their major ion concentration. The objective of the study was to determine the groundwater facies, the main hydrochemical process governing the groundwater chemistry, the saturation index with respect to the principal mineral phases, and the suitability of the groundwater for irrigational use. The groundwater samples fall within the Ca–Cl type, mixed Ca–Mg–Cl type, and Na–Cl type. Evaporation and reverse ion exchange appear to be the major processes controlling the groundwater chemistry though reverse ion exchange process is the more dominating factor. The various ionic relationships confirmed the reverse ion exchange process where the Ca and Mg in the aquifer matrix have been replaced by Na at favorable exchange sites. This phenomenon has accounted for the dominance of Ca and Mg ions over Na ion at all the sites. The process of reverse ion exchange was further substantiated by the use of modified Piper diagram (Chadha’s classification) and the chloro-alkaline indices. Evaporation as a result of extreme aridity has resulted in the groundwater being oversaturated with aragonite/calcite and dolomite as revealed by the saturation indices. The groundwater samples were classified as safe (less than 10) in terms of sodium adsorption ratio (SAR) values, good (less than 1.25) in terms of residual sodium carbonate (RSC) values, and safe to moderate (between 0 and 3) in terms of Mg hazard for irrigation purposes. Though the high salinity groundwater in the three regions coupled with low SAR values are good for the soil structure, it can have a negative impact on the crop production by adversely affecting the crop physiology. Cultivation of high-salinity-resistant varieties of crops is recommended for maximum agricultural productivity. © 2015, Springer International Publishing Switzerland.