Table 3.
Temporal trends of the ETpmf on a monthly time scale during 1981–2018 in Bangladesh.
| Parameters | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| β | -0.013∗ | -0.008 | -0.018 | -0.020 | -0.009 | 0.014 | 0.013 | -0.017 | -0.003 | -0.013∗ | -0.012∗ | -0.016∗∗ |
| Z | -2.520 | -1.198 | -1.735 | -1.751 | -0.891 | 0.193 | 0.589 | -0.562 | -0.657 | -2.393 | -2.304 | -3.054 |
Note: ∗ and ∗∗ denote the significance levels of 0.05 and 0.01, respectively. β is the estimated slope trend of the ETpmf, and β > 0 and β < 0 signify an upward and a downward trend, respectively. Z is the Mann–Kendall test statistic. Note: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, and Dec are the abbreviations of January, February, March, May, June, July, August, September, October, November, and December, respectively.