hydrologická ročenka povrchové vody 2010

HYDROLOGICAL CHARACTERISTICS OVER THE YEARAnnual mean precipitation total on the area of Slovak Republic in 2010 has reachedthe value 1 206 mm, what represents 158 % of the long-term mean precipitation total andaccording to precipitation it is assessed as the extremely wet year. The monthly meanprecipitation totals in particular months of 2010 are listed in the table 0.1.Tab. 0.1 Mean precipitation totals on the area of Slovakia in 2010Month 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Yearmm 64 51 30 80 223 140 147 143 126 28 102 72 1206% of long-term mean 139 121 64 145 293 163 163 177 200 46 165 136 158Abundance(+)/Deficit(-) [mm] 18 9 -17 25 147 54 57 62 63 -33 40 19 444Precipitation characterof period W W D W EW VW VW VW EW VD VW W EW D -dry, VD - very dry, ED – extremely dry, N - normal, W - wet, VW - very wet, EW - extremely wetThe year 2010 was evaluated as precipitation extremely wet year. The particularmonths were of different character of precipitation. Extremely wet were: May (293 % of longtermnormal) and September (200 % of long-term normal). The months June, July, Augustand November were according to precipitation very wet (about 102 to 147 mm had fallen onthe territory of Slovakia, what represents 163 to 177% of long-term normal). Differently, thedry month was March (64 % of long-term normal) and very dry was October (28 mm, whatrepresents 46 % of long-term normal). January, February, April and December belongedamong the wet months (121 to 145 % of long-term normal). When assessing the precipitationtotal of the whole year 2010 there was an abundance of precipitation 444 mm.The yearly amounts of precipitation total in the particular river basins of Slovakiain 2010 are demonstrated in the table 0.2.Tab. 0.2 Mean values of precipitation total and runoff in particular Slovak riverbasins in 2010River *Morava *Dunaj Váh Nitra Hron *Ipeľ Slaná Bodva Hornád *Bodrog *Poprad SRbasinDunajecCatchmentarea 2282 1138 14268 4501 5465 3649 3217 858 4414 7272 1950 49014[km 2 ]Mean yearlyprecipitationtotal983 954 1243 1081 1294 1183 1285 1242 1253 1153 1371 1206[mm]% of longtermmean 144 152 147 156 164 173 163 170 185 164 163 158Precipitationcharacterof the period EW EW EW EW EW EW EW EW EW EW EW EWYearly runoff 220 48 510 279 554 383 520 494 544 472 630 468[mm]% of longtermmean 167 133 161 195 192 282 275 301 259 159 183 179D - dry, VD - very dry, ED – extremely dry, N - normal, W - wet, VW - very wet, EW - extremely wet* Rivers and values only from the Slovak parts of river basins11