A refinement of the Band spreadsheet for wind turbine collision risk allowing for oblique entry

A new spreadsheet is presented, to be used as part of the Band model for estimating potential avian mortality due to wind turbine strike. The spreadsheet extends the Band collision risk spreadsheet by allowing for oblique approach angles and wind speed. The differences in the results between this new spreadsheet and the standard Band spreadsheet are given for two species, the white-tailed eagle <i>Haliaeetus albicilla</i> and the South Island pied oystercatcher <i>Haematopus finschi</i>, chosen for their contrasting sizes and flight characteristics. Under more representative conditions, the true risk for large birds is shown to be substantially greater than that calculated by the Band spreadsheet. Examples of how to use the new spreadsheet with bird survey and wind data are given.

本研究提出一款全新电子表格，作为评估风力涡轮机撞击导致的鸟类潜在致死风险的Band模型（Band model）的组成部分。该电子表格在原有Band碰撞风险电子表格（Band collision risk spreadsheet）的基础上进行了拓展，新增了斜向趋近角度与风速两项考量维度。研究选取了体型与飞行特征差异显著的白尾海雕（*Haliaeetus albicilla*）与南岛斑蛎鹬（*Haematopus finschi*）两种鸟类，给出了该新型电子表格与标准Band电子表格的计算结果差异。在更贴合实际的代表性场景中，大型鸟类的真实撞鸟风险显著高于标准Band电子表格的计算结果。本文还提供了将该新型电子表格与鸟类调查数据、风力监测数据结合使用的应用示例。