KGS Home Page Library and Publications Page Open-file Rept. Search

KGS OFR 2003-55C- Appendix A: Solomon Basin.

Appendix A of KGS OFR 2003-55C provides plots of the mean annual streamflow, total accumulated annual precipitation, and the trends in mean annual streamflow statistically adjusted for precipitation by KWO planning basin. Plots are provided for each unique gaging station and when possible, the composite trend for stations that had a mean annual streamflow value every single year from 1982 to 2001. The R-squared value, which is a measure of the statistical relationship between streamflow and the combination of annual accumulated precipitation and time, is also provided. A measure of the statistical significance in the trend line can be seen with the "Probt" value where if Probt is less than 0.1 indicates a significant trend.


1982 to 2001 Composite Trend: 4 stations are used in this aggregated trend.
Average R-squared value: Entire Period of Record = 0.51302, 1982 to 2001 = 0.58015.
Probt Count: Entire Period of Record = 3 out of 4 stations, 1982 to 2001 = 1.


Station 6871000- NF SOLOMON R AT GLADE, KS

Entire Period of Record 1982 to 2001 Time Period
R-Squared = 0.39378 R-Squared = 0.50998
Probt = 0.0369077815060827 Probt = 0.0980370475832512
Slope = -0.438585894569034 Slope = 1.20211580743464
Change in Trend is statistically significant. Change in Trend is statistically significant.

 


Station 6871500- BOW C NR STOCKTON, KS

Entire Period of Record 1982 to 2001 Time Period
R-Squared = 0.52247 R-Squared = 0.51265
Probt = 0.0110727882199199 Probt = 0.930792758651338
Slope = -0.29789610600288 Slope = 0.0291560245729568
Change in Trend is statistically significant. Change in Trend is not statistically significant.

 


Station 6873000- SF SOLOMON R AB WEBSTER RE, KS

Entire Period of Record 1982 to 2001 Time Period
R-Squared = 0.51286
R-Squared = 0.60288
Probt = 0.00066609747388191
Probt = 0.145844307275958
Slope = -1.71065261307586
Slope = 1.65630780170613
Change in Trend is statistically significant.
Change in Trend is not statistically significant.

 


Station 6876700- SALT C NR ADA, KS

Entire Period of Record 1982 to 2001 Time Period
R-Squared = 0.62295
R-Squared = 0.695096
Probt = 0.675390502786604
Probt = 0.771108843507679
Slope = 0.299634582675979
Slope = -0.686968089996311
Change in Trend is not statistically significant.
Change in Trend is not statistically significant.