Analysis of Streamflow Trend in the Susquehanna River Basin, USA - Hydrologic Time Series Analysis: Theory and Practice - page 191

Fig. 9.7. Annual median streamflows of the Sinnemahoning Creek at
Sinnemahoning, Pennsylvania.
Fig. 9.8. Results of the trend pattern detection in the annual median streamflows
of the Sinnemahoning Creek at Sinnemahoning, Pennsylvania. Upward triangles
indicate significant increasing trend at the significance level of 0.05 and
downward triangles indicate significant decreasing trend at the significance
level of 0.05.