![]() NASA Earth Observatory image by Wanmei Liang, using Landsat data from the U.S. In October, Windpark Fryslân will be the site of the Windmill Cup, a sailing race that courses through the turbines. While the island is only 2 hectares (5 acres) in size, it is surrounded by 25 hectares (60 acres) of shallow water that provides habitat for fish.Īlong with a new power source and wildlife habitat, the Dutch have found new recreational opportunities associated with wind project. Nearby, an artificial island that was created as a construction platform now serves as a nature reserve and bird sanctuary. One of the two sets of locks in the dike is located at Kornwerderzand. In addition, installing the rotors, which are 130 meters (430 feet) in diameter, required finding windows of relative calm in a naturally windy place. The vessels had to both fit through the locks in the dike and operate in the shallow waters of the lake. A major constraint was the size of ships that could be used to transport construction materials and turbine components to the site. In 2022, the installation produced 1.236 terawatt hours.Ĭonstructing the wind farm in Lake IJssel posed unique challenges, according to the company Van Oord, which was part of the consortium that built Windpark Fryslân. This is equivalent to approximately 1.2 percent of electricity use in the Netherlands, or enough to power about 500,000 households. The wind farm came online in autumn 2021 with the capacity to generate 1.5 terawatt hours annually. The 32-kilometer-long (20-mile-long) Afsluitdijk, which provides flood protection and separates the lake from the Wadden Sea, is also prominent in the image. Their arrangement in a hexagon shape is intended to minimize how much the installation obstructs the view of the horizon. ![]() In this image, acquired by the Operational Land Imager (OLI) on Landsat 8 on July 8, 2023, Windpark Fryslân’s precisely spaced turbines are seen rising out of Lake IJssel. Windpark Fryslân, an array of 89 wind turbines clustered within a hexagon shape, is the largest freshwater wind farm in the world. So it may come as little surprise that the Netherlands is home to a modern, second-to-none wind energy installation. Suffice it to say, the Dutch have a history with wind power. Since it is intended as a learning aid, the code is written in a style that we hope is easy to understand and follow, especially when accompanied by the book.įor information on getting up and running with the code on both Windows and Linux, see the instructions here.Today’s story is the answer to the July 2023 puzzler. The code (and the book) draw from the authors' real-world experience working on STK, one of the earliest commercial virtual globes. Whole-world terrain and imagery rendering on an accurate WGS84 globe using geometry clipmapping.Terrain shading using procedural techniques. According to the website ( ), 'WorldWind is an open source virtual globe API.Terrain patch rendering using CPU triangulation, GPU displacement mapping, and GPU ray casting.Vector data rendering, including reading vector data from shapefiles.High-precision vertex rendering techniques to avoid jittering problems.Techniques for avoiding depth buffer errors when rendered objects are found at widely varying distances from the camera.WGS84 (and other ellipsoid) globe rendering using tessellation or GPU ray casting.A well designed (and pragmatic) renderer abstraction making it easier and less error prone to interface with OpenGL.OpenGlobe has the following features and capabilities: It is not a complete virtual globe application, but is rather a core engine and a number of runnable examples. It is written in C# (with full support for running on Linux using Mono) and uses the OpenGL 3.3 core profile via OpenTK. OpenGlobe is a 3D engine for virtual globes (think Google Earth or NASA World Wind) designed to illustrate the engine design and rendering techniques described in our book, 3D Engine Design for Virtual Globes. But for a production quality, open source, virtual globe by the same authors (plus more), check out Cesium! Note: OpenGlobe is great for learning along with our book, 3D Engine Design for Virtual Globes.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |