GEO Haiti 2010

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GEO HAITI • 2010 56 Figure 12: Annual rainfall variation at Camp Perrin from 2000-2007 1,100 (mm) 1,000 900 800 700 600 500 400 300 200 100 0 2007 2006 2005 2004 2003 2002 2001 2000 January February March April May June July August September October November December 12 44 254 172 179 94 280 273 269 1,047 294 0 23 89,6 52,4 158 318,8 250,2 294,2 196 23,6 164,4 241,8 78,6 141,80 28,40 14,80 128,20 420,80 435,20 208,40 190,00 158,60 738,20 79,60 100,80 47,20 12,80 124,20 166,20 140,80 58,20 185,80 152,80 543,00 196,60 31,00 44,20 76,6 58,4 119,1 185,8 168,8 141,6 46,6 183,6 211,2 104,4 199,4 106,8 6,0 41,4 243,0 181,2 871,2 204,2 103,0 112,6 618,8 70,8 85,4 126,8 48 36 14 249 389 57 62 41 150 167 128 180 38 69 94 101 185 32 156 154 396 284 41 456 Source: Organization for the Rehabilitation of the Environment (ORE 16 ), 2007 Figure 13 highlights the different climate zones within the country. The wet zones are located in the South, North and Southeast of Haiti, while the other regions possess arid and semi-arid climates, as in the case of Artibonite. Nevertheless, the altitudinal gradient is very favorable to the presence of a humid climate throughout the year. This is the case of the Massif de La Hotte in the southern region and the Massif La Selle (Southeast and West). 16 http://www.oreworld.org/images/r_1993-2007/1993-2007%20mm.pdf
State of the Environment Report 2010 Figure 13: Different climate zones 57 Source: CNIGS, 2009 1.3.4 Hydrography Given the limited size of its territory, Haiti does not possess vast river systems. The country’s main river, the Artibonite, originates in the Dominican Republic and the three-quarters of its course meanders through the department of the same name in Haiti. The Artibonite River is very irregular and seasonal, and is the largest water course in the Caribbean Basin. The water courses in the country are subjected to significant seasonal variations. Among those which have a large drainage area are the Artibonite (6 800 km 2 and a maximal daily flow of 2500 m 3 /s), Trois Rivières (900 km 2 with a maximal daily flow of 1500 m 3 /s), Estère (156 km 2 with a maximal daily flow of 95 m 3 /s), Grande Rivière du Nord (528 km 2 with a maximal daily flow of 390 m 3 /s), Grand’Anse (435 km 2 with a maximal daily flow of 850 m 3 /s), de Cavaillon (386 km 2 with a maximum estimated daily flow of 1035 m 3 /s), de Limbé (303 km 2 maximal daily flow of 485 m 3 /s), the Acul du Sud (183 km 2 ), Ravine du Sud (86 km 2 , maximal daily flow of 350 m 3 /s) and Momance (330 km 2 and a maximal daily flow of 420 m 3 /s) (US SOUTHERN COMMAND, 1999). Figure 14 below highlights the hydrographical network of the country.
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GEO Haiti 2010

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