Johnson Hansen D, Taggart Christopher T, Newhall Arthur E, Lin Ying-Tsong, Baumgartner Mark F
Oceanography Department, Dalhousie University, 1355 Oxford Street, Halifax, Nova Scotia B3H 4R2, Canada.
Applied Ocean Physics and Engineering Department, Woods Hole Oceanographic Institution, 266 Woods Hole Road, Woods Hole, Massachusetts 02543, USA.
J Acoust Soc Am. 2022 Apr;151(4):2558. doi: 10.1121/10.0010124.
The goal of this study was to characterize the detection range of a near real-time baleen whale detection system, the digital acoustic monitoring instrument/low-frequency detection and classification system (DMON/LFDCS), equipped on a Slocum glider and a moored buoy. As a reference, a hydrophone array was deployed alongside the glider and buoy at a shallow-water site southwest of Martha's Vineyard (Massachusetts, USA) over a four-week period in spring 2017. A call-by-call comparison between North Atlantic right whale upcalls localized with the array (n = 541) and those detected by the glider or buoy was used to estimate the detection function for each DMON/LFDCS platform. The probability of detection was influenced by range, ambient noise level, platform depth, detection process, review protocol, and calling rate. The conservative analysis of near real-time pitch tracks suggested that, under typical conditions, a 0.33 probability of detection of a single call occurred at 6.2 km for the buoy and 8.6-13.4 km for the glider (depending on glider depth), while a 0.10 probability of detection of a single call occurred at 14.4 m for the buoy and 22.6-27.5 km for the glider. Probability of detection is predicted to increase substantially at all ranges if more than one call is available for detection.
本研究的目标是确定配备在Slocum滑翔器和系泊浮标上的近实时须鲸探测系统——数字声学监测仪器/低频探测与分类系统（DMON/LFDCS）的探测范围。作为参考，2017年春季，在美国马萨诸塞州玛莎葡萄园岛西南的一个浅水区，在滑翔器和浮标旁边部署了一个水听器阵列，为期四周。通过对用该阵列定位的北大西洋露脊鲸向上叫声（n = 541）与滑翔器或浮标探测到的叫声进行逐次比较，来估计每个DMON/LFDCS平台的探测功能。探测概率受距离、环境噪声水平、平台深度、探测过程、审查协议和叫声率的影响。对近实时音高轨迹的保守分析表明，在典型条件下，浮标在6.2公里处单次叫声的探测概率为0.33，滑翔器在8.6 - 13.4公里处（取决于滑翔器深度）单次叫声的探测概率为0.33，而浮标在14.4米处单次叫声的探测概率为0.10，滑翔器在22.6 - 27.5公里处单次叫声的探测概率为0.10。如果有多个叫声可供探测，预计在所有距离上探测概率都会大幅增加。
