FIGURE 1.

FIGURE 2.

FIGURE 3.

FIGURE 4.

FIGURE 5.

FIGURE 6.

FIGURE 7.

p-values of the Mann–Kendall test for the lowest monthly discharges of the Oder in a particular month over the period of 1950–2022
| Water gauge | Month | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | |
| Chałupki | 0.071 | 0.506 | 0.019 | 0.001 | 0.054 | 0.181 | 0.553 | 0.159 | 0.184 | 1.000 | 0.199 | 0.032 |
| Połęcko | 0.710 | 0.388 | 0.797 | 0.384 | 0.669 | 0.032 | 0.001 | 0.0002 | 0.003 | 0.003 | 0.326 | 0.617 |
| Gozdowice | 0.770 | 0.548 | 0.509 | 0.384 | 0.984 | 0.145 | 0.007 | 0.002 | 0.015 | 0.008 | 0.210 | 0.338 |
p-values of the Mann‒Kendall tests for several days of drought at a particular gauging station and the longest annual drought at a specific gauging station
| Profile | Number of days of drought | Longest drought | ||
|---|---|---|---|---|
| trend | p | trend | p | |
| Chalupki | decreasing | 0.0093 | decreasing | 0.0021 |
| Polecko | increasing | 0.5855 | increasing | 0.7792 |
| Gozdowice | increasing | 0.6032 | increasing | 0.7481 |
