Research Article
Spatio-Temporal Rainfall Variability and Concentration over Sri Lanka
Table 3
Summary of the annual and seasonal rainfall of the Sri Lanka (1990–2019).
| SN | Stations | Annual | SWMS | NEMS | Mean | Max | Min | SD | CV | Mean | Max | Min | SD | CV | Mean | Max | Min | SD | CV |
| 1 | Jaffna | 1382 | 1965 | 903 | 318 | 23 | 224 | 565 | 28 | 123 | 55 | 373 | 976 | 81 | 201 | 54 | 2 | Vavuniya | 1433 | 2106 | 1038 | 238 | 17 | 311 | 588 | 144 | 126 | 40 | 438 | 838 | 216 | 174 | 40 | 3 | Trincomalee | 1648 | 2910 | 996 | 367 | 22 | 335 | 603 | 96 | 126 | 38 | 601 | 1619 | 205 | 252 | 42 | 4 | Puttalam | 1205 | 1734 | 819 | 263 | 22 | 256 | 539 | 48 | 134 | 52 | 246 | 579 | 83 | 110 | 45 | 5 | Mahailluppallama | 1480 | 2090 | 1011 | 272 | 18 | 292 | 848 | 53 | 178 | 61 | 390 | 748 | 104 | 167 | 43 | 6 | Parakrama Samudraya | 1790 | 2941 | 846 | 480 | 27 | 245 | 581 | 51 | 140 | 57 | 771 | 1532 | 294 | 313 | 41 | 7 | Batticaloa | 1870 | 3621 | 1010 | 542 | 29 | 247 | 500 | 30 | 112 | 45 | 890 | 2403 | 388 | 423 | 48 | 8 | Kurunegala | 1991 | 2737 | 1228 | 326 | 16 | 632 | 1119 | 334 | 203 | 32 | 283 | 719 | 57 | 142 | 50 | 9 | Katugastota | 1868 | 2666 | 1300 | 287 | 15 | 590 | 898 | 375 | 147 | 25 | 404 | 767 | 95 | 175 | 43 | 10 | Badulla | 1777 | 2525 | 1035 | 349 | 20 | 398 | 785 | 209 | 133 | 33 | 574 | 1354 | 250 | 217 | 38 | 11 | Colombo | 2402 | 3370 | 1774 | 371 | 15 | 1001 | 1703 | 639 | 243 | 24 | 326 | 582 | 102 | 120 | 37 | 12 | Ratnapura | 3682 | 4711 | 2801 | 499 | 14 | 1782 | 2508 | 1271 | 376 | 21 | 475 | 894 | 220 | 178 | 37 | 13 | Wellawaya | 1996 | 3158 | 1466 | 457 | 23 | 342 | 665 | 98 | 158 | 46 | 446 | 855 | 190 | 167 | 38 | 14 | Galle | 2335 | 3091 | 1537 | 406 | 17 | 1068 | 1590 | 471 | 296 | 28 | 333 | 586 | 136 | 127 | 38 | 15 | Hambantota | 1064 | 1734 | 649 | 232 | 22 | 304 | 734 | 78 | 125 | 41 | 258 | 466 | 73 | 113 | 44 |
|
|
SWMS = southwest monsoon season; NEMS = northeast monsoon season; Max = maximum; Min = minimum, SD = standard deviation; CV = coefficient of variability.
|