Table 2. Drought intensity-duration-frequency relations for stations near Ojos Negros valley.

No. Station Latitude Longitude Altitude
(m) No. of
years P_ma
(mm) No. of
events Average
intensity Average
duration
(yr) Average
frequency
(yr)

1 Agua Caliente 32^o 06' 54" 116^o 23' 45" 410 34 285 9 0.78 2.44 3.78

3 Belen 32^o 11' 43" 116^o 29' 08" 555 35 347 9 0.82 2.22 3.89

3 Boquilla de Santa Rosa 32^o 01' 42" 116^o 45' 16" 50 39 272 9 0.92 3.00 4.33

4 El Pinal 32^o 11' 00" 116^o 17' 30" 1350 29 517 6 0.79 3.00 4.83

5 Ensenada 31^o 53' 45" 116^o 35' 47" 50 72 268 19 0.70 2.21 3.79

6 Ojos Negros 31^o 54' 42" 116^o 15' 53" 712 46 243 13 1.23 2.00 3.54

7 Olivares Mexicanos 32^o 02' 57" 116^o 36' 51" 351 52 310 14 0.74 2.14 3.71

8 San Carlos 31^o 47' 03" 116^o 27' 00" 170
39 331 10 0.82 2.40 3.90

9 San Juan de Dios Norte 31^o 59' 30" 116^o 09' 54" 1280 27 396 6 0.84 3.00 4.50

10 Valle de San Rafael 31^o 55' 06" 116^o 14' 13" 230 21 289 6 0.61 2.17 3.50

- Average - - - 40 326 10 0.83 2.46 3.96