Climate Change Indicators in California: Salmon River Water Temperature (2022)

The water temperatures in the Salmon River and its tributaries have been warming over time.

The Salmon River watershed has relatively modest human influences.

Figure 1 shows the trend in water temperatures for the Salmon River, South Fork Salmon upstream of Black Bear Creek, and Wooley Creek near the mouth from 1992 to 2020.

<p>The solid line denotes a statistically significant trend in water temperature.</p> Signup and view all the answers

<p>The water temperature for the Salmon River near the USGS gage is increasing at a rate of $+0.33 \degree\text{C}$ per decade ($+0.60 \degree\text{F}$ per decade).</p> Signup and view all the answers

<p>The asterisk refers to the fact that the value for each year is the annual maximum temperature -- i.e., the highest instantaneous maximum temperature--during the summer.</p> Signup and view all the answers