Near-bottom temperature data obtained from Current and Pressure-recording Inverted Echo Sounders (CPIES) and processed HYCOM data near the Chukchi slope

quasi-seasonal and sub-inertial variations of near-bottom temperature were observed using current and pressure-recording inverted echo sounders (cpies) deployed on the slope between canada basin and the chukchi shelf from august 2018 to july 2020.quasi-seasonal and sub-inertial variations of near-bottom temperature were observed using current and pressure-recording inverted echo sounders (cpies) deployed on the slope between canada basin and the chukchi shelf from august 2018 to july 2020. they were equipped with a 4930r zpulse doppler current sensor positioned approximately 51 m above the seafloor, which measured near-bottom current and temperature. among the variables cpies measured, we used the near-bottom temperature, the resolution and accuracy of which are 0.01°c and 0.1°c, respectively. we also used temperature, velocity, and sea surface height data from the hybrid coordinate ocean model (hycom). we collected outputs from the hycom + ncoda global 1/12° gofs 3.1 41-layer analysis (glby0.08 experiment 93.0). it has a horizontal resolution of 0.08° × 0.04° (zonal and meridional, respectively) and a temporal resolution of 3 h.

自2018年8月至2020年7月，研究人员利用部署在加拿大盆地与楚科奇海架之间的斜坡上的电流和压力记录式倒向声纳（CPIES），观测到了近底温度的准季节性和亚惯性变化。这些声纳设备配备了位于海底约51米处的4930R Z-Pulse多普勒流速仪，用以测量近底流速和温度。在CPIES所测量的变量中，我们选用了近底温度，其分辨率为0.01°C，准确度为0.1°C。此外，我们还使用了混合坐标海洋模型（HYCOM）提供的温度、速度和海面高度数据。数据来源于HYCOM + NCODA全球1/12° GOFS 3.1 41层分析（GLBY0.08实验93.0），该模型的水平分辨率为0.08°×0.04°（经向和纬向分别），时间分辨率为3小时。