Thermal Structure of the Cascadia Subduction Zone, Grays Canyon Discovery Corridor, Washington

使用3.5m探头进行的热流测量将被添加到预定的实验“西澳边缘卡斯卡迪亚俯冲带的热结构”(PIS Johnson&Solomon，OCE-1144164)。探头温度和导热系数的测量将增强主要实验将获得的~1m深度热流的测定。对可能的底水温度变化的改进评估将通过探头测量的最高温度梯度的线性偏差来记录。确认一天的发货时间进行热探测工作，如果船期允许，要求第二天发货。这些数据的后巡航数值模拟旨在约束向下延伸到俯冲板块界面的温度结构，这与深部地震活动模式有关。

Heatflow measurements using a 3.5 m probe will be added to a scheduled experiment "Thermal structure of the cascadia subduction zone on the WA margin (PIs Johnson & Solomon, OCE-1144164). The probe temperature and thermal conductivity measurements will enhance the ~1 m depth heatflow determinations the main experiment will obtain. Improved assessment of possible bottom water temperature variation will be documented by deviations from linearity in the uppermost thermal gradient measured by the probe. One day of shiptime to conduct heat probe work is confirmed, a second day is requested if ship schedule allows. Postcruise numerical modeling of these data aims to constrain temperature structure extending down to the subducting plate interface, which is related to deep seismicity patterns.