Data from: Drivers of flight altitude during nocturnal bird migration over the North Sea and implications for offshore wind energy

The data provided belongs to the manuscript: Drivers of flight altitude during nocturnal bird migration over the North Sea and implications for offshore wind energy published in Conservation Science and Practice by Maja Bradarić, Bart Kranstauber, Willem Bouten, Hans van Gasteren and Judy Shamoun-Baranes.Files named "radar_data" contain information on track altitudes per timestamp and night collected during the spring and autumn migration seasons from 2019-2021 by radars positioned in Luchterduinen and Borssele wind farms off the western Dutch coast. The data provided has been post-processed according to the steps described in detail in the accompanying paper and supplementary information therein.Raw radar data, processed by the radar software, is collected by Rijkswaterstaat (the Dutch Ministry of Infrastructure and Water Management), and a copy is stored by the University of Amsterdam. For more information about the data, contact the authors.The files named "model_data" contain information about the hourly fraction of low-altitude migration (lt_ratio) throughout the spring and autumn migration seasons at both radar locations. They also contain hourly values of variables used in the model to explain the main drivers of low-altitude migration. The complete list of variables and their abbreviations is available in the associated paper.<br>

本数据集隶属于论文《北海上夜间鸟类迁徙的飞行高度驱动因子及其对近海风电的启示》，该论文发表于《保护科学与实践（Conservation Science and Practice）》，作者为Maja Bradarić、Bart Kranstauber、Willem Bouten、Hans van Gasteren与Judy Shamoun-Baranes。
名为"radar_data"的文件包含2019至2021年春秋迁徙季期间，部署于荷兰西海岸外Luchterduinen与Borssele风电场的雷达所采集的、按时间戳与夜间划分的迁徙轨迹高度信息。
本数据集已按照随附论文及其中补充材料详述的步骤完成后处理。
经雷达软件处理后的原始雷达数据由荷兰基础设施与水资源部（Rijkswaterstaat）采集，阿姆斯特丹大学留存有该数据的副本。
如需了解该数据集的更多信息，请联系本文作者。
名为"model_data"的文件包含两处雷达站点在春秋迁徙季期间的每小时低空迁徙占比（lt_ratio）相关信息。
该文件同时收录了用于构建解释低空迁徙核心驱动因子模型的各项变量的每小时取值。
变量完整列表及其缩写说明可参见相关论文。