ABSTRACT

We assembled water-temperature data (1.0–15 m depth horizon) from several field studies (spanning 2003–2020) within Pelorus Sound to generate composite time-series of temperature at four locations. We also examined satellite-sensed sea-surface temperature records for the region (2002–2019). Time-series were deseasoned and Sen-slopes were calculated as measures of long-term trend. All of the in-situ slopes and most of the satellite slopes fell inside the range 0.2–0.4°C decade⁻¹. Within the in-situ data, warming appears to have been less rapid during the spring (September-November) quarter than in others. In the satellite data, warming was slower during both the winter and spring quarters. The satellite data indicate that warming has been less rapid inside the Sound than the nearby oceanic waters. Air temperatures inside the Sound have warmed at a rate similar to the nearby water (and a lesser rate than the oceanic ones) and riverine heat inputs have not changed appreciably. We infer that warming has been driven mainly by import of warming oceanic waters. We discuss the implications of future warming for the two marine crops grown in Pelorus Sound (Chinook salmon and Greenshell™ mussel) drawing upon literature concerning their responses to temperature.

摘要

我们在Pelorus Sound进行了几次野外研究（2003年至2020年）汇总了水温数据（深度范围1.0–15 m），以生成四个位置的温度综合时间序列。我们还检查了该地区（2002-2019年）的卫星感应海面温度记录。淡化时间序列，并计算Sen斜率作为长期趋势的度量。所有的原位坡度和大多数卫星坡度都在0.2–0.4°C十年^-1之内。在原位内数据显示，春季（9月至11月）季度的增温似乎没有其他地区快。在卫星数据中，冬季和春季季度的升温都较慢。卫星数据表明，与附近的海洋水域相比，声音内部的变暖速度较慢。桑德海峡内部的空气温度以与附近水相似的速度变暖（并且比海洋中的温度低），并且河流的热量输入没有明显变化。我们推断，变暖主要是由进口变暖的海洋水驱动的。我们将根据有关温度响应的文献讨论未来变暖对在Pelorus Sound种植的两种海洋作物（Chinook鲑鱼和Greenshell™贻贝）的影响。