对于运动生态学研究的地形诱导的上升潮的三维模型
Regis Thedin1, David Brandes2,3, Eliot Quon2
1National Renewable Energy Laboratory, Golden, CO, USA. regis.thedin@nrel.gov.
Movement ecology
|March 29, 2024
概括
一个新的模型准确地估计了飞翔鸟类运动的轨道上游,改善了复杂地形的模拟. 这种工程垂直速度估计器 (EVVE) 对鸟类飞行和风能应用提供了比现有方法更好的预测.
科学领域:
- 大气科学和生物物理学
- 计算流体动力学的流体动力学.
- 运动生态学运动生态学
背景情况:
- 精确的大气条件建模对于模拟动物运动至关重要,特别是依靠垂直上升的飞行鸟类.
- 复杂的地形显著影响风力场,需要将当地地形与相关尺度上的大气条件相结合的模型.
研究的目的:
- 开发和验证一种新的经验模型,用于估计地形上升气流场.
- 为了提高动物运动研究的大气模拟的准确性,特别是复杂地形上的升物种.
主要方法:
- 开发了一个新的实证模型,工程垂直速度估计器 (EVVE),使用计算流体动力学模拟.
- 模拟集中在中性分层的大气中,在中度复杂的地形上,以隔离地形诱导的影响.
- EVVE模型是地形高度,地面高度 (AGL) 和参考风状况的函数;与现场数据验证.
主要成果:
- 在120米AGL上升时,EVE模型实现了0.11m/s的平均误差,明显超过了基线模型 (0.85m/s).
- 在典型的风力轮机枢纽高度 (80 m AGL),EVE的平均误差为0.04 m/s,相比之下,基线的0.54 m/s.
- 应用该模型来模拟金的运动,显示与标准风向量方法相比,轨迹和存在地图的明显差异.
结论:
- 运动模型的结果对所使用的山形上升风流模型敏感,特别是在复杂的地形中.
- 拟议的EVE模型提供了比目前广泛使用的方法更准确的对地形上升的表示.
- 建议采用EVE模型,用于在地形复杂的地区研究飞翔鸟类的微观移动.
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