Wind Speed (m/s) - Eastern Cape
收藏资源简介：
Purpose: This data set was created for the WASA project and the Department of Energy, South Africa. The wind resource maps were designed specifically for inclusion in GIS-based strategic environmental assessments (SEA) for wind power in Western Cape and parts of Northern and Eastern Cape. Methodology: Reference is made to the information and documentation available from www.wasaproject.info and www.wasa.csir.co.za. Limitations: The data set is limited by the operational envelopes of the wind atlas methodology and the WAsP models. The accuracy depends on a) the accuracy of the VNWA, which has been verified against the data from 10 WASA measurement masts, b) the WAsP microscale modelling and c) the input topographical data. In complex terrain (RIX > 5%), the wind resources may be significantly over-estimated by the WAsP microscale modelling. Above and close to built-up areas like cities, towns and villages, the results are less reliable. Close to and above forested areas, the results are also less reliable and should be interpreted and used accordingly. The data set was designed specifically for planning purposes and should be used with utmost care for design, development and detailed assessments of actual wind farms; where local, on-site measurements are strongly recommended. The wind resource maps are subject to change without notice if and when more accurate and reliable data, models and procedures become available. Available documentation: The wind atlas methodology is described in the European Wind Atlas (1989); the application of WAsP in the program documentation, see www.wasp.dk. The Verified Numerical Wind Atlas for South Africa is a product of the Wind Atlas for South Africa project and is described further on the WASA download pages http://wasadata.csir.co.za/wasa1/WASAData. Acknowledgements: WASA project for Frogfoot application and provision of wind-climatological and topographical data. WAsP development teams at DTU Wind Energy and World in a Box Oy for Frogfoot development.
用途：本数据集专为南非能源部及WASA项目定制。其风能资源图谱专为西开普省、北开普省与东开普省部分区域的风电地理信息系统（Geographic Information System）战略环境评估（Strategic Environmental Assessment）工作量身打造。 方法论：本研究参考了www.wasaproject.info与www.wasa.csir.co.za平台公开的信息与文档资料。 局限性：本数据集的适用范围受限于风能图谱方法学与WAsP模型的运算边界。其精度由三方面因素决定：a) 数值风场验证工具（Verified Numerical Wind Atlas，VNWA）的精度，该工具已通过10座WASA测风塔的实测数据完成校准；b) WAsP微尺度建模结果；c) 输入的地形数据。在地形复杂度RIX>5%的复杂地形场景中，WAsP微尺度模型可能会显著高估风能资源储量。在城市、乡镇等建成区及其周边区域，计算结果的可靠性较低；在林区及其邻近区域，结果同样可靠性不足，使用与解读时需予以充分考量。本数据集仅适用于规划阶段，若需开展风电场的设计、开发与详细评估，务必结合现场实测数据开展工作，特此提醒。若后续出现更精准可靠的数据、模型与方法，本风能资源图谱将随时更新，恕不另行通知。 可用文档：欧洲风能图谱（1989）中详细阐述了风能图谱方法学；WAsP的程序应用说明可参见www.wasp.dk。南非验证数值风场图集（Verified Numerical Wind Atlas，VNWA）为南非风能图谱项目的成果，更多相关信息可于WASA数据下载页面http://wasadata.csir.co.za/wasa1/WASAData查阅。 致谢：感谢WASA项目为Frogfoot应用提供风能气候与地形数据。感谢DTU Wind Energy与World in a Box Oy的WAsP开发团队参与Frogfoot的开发工作。
