Calculating sperm whale lengths from passive acoustic data using Matlab

This dataset contains Matlab code used to estimate the length of sperm whales in the northern Gulf of Mexico. Five scripts reading in EARS buoy passive acoustic buoy data, identify echolocation clicks and form an average click for a recording, subset the identified clicks for quality, and calculate the inter-pulse interval (IPI) of echolocation clicks using wavelet techniques. The equations of Gordon (1991) and Growcott et al. (2011) were used to calculate the lengths of the whales from the IPIs. The dataset includes a ReadMe document which describes each script and provides additional information on running them. Also included is an Excel template for the final calculation of body length.

本数据集包含用于估算墨西哥湾北部抹香鲸体长的Matlab代码。内含5个脚本，可完成以下任务：读取EARS被动声学浮标（EARS buoy）数据，识别回声定位咔哒声并生成单次录音的平均咔哒声样本，对已识别的咔哒声进行质量筛选，以及利用小波技术计算回声定位咔哒声的脉冲间隔（inter-pulse interval, IPI）。本数据集采用Gordon（1991）与Growcott等（2011）提出的公式，基于脉冲间隔计算抹香鲸的体长。数据集附带一份自述文档（ReadMe），用于说明各脚本的功能，并提供脚本运行的额外指导信息。此外，本数据集还包含用于最终体长计算的Excel模板。