A Study of the Drainage as Based on an Evaluation of the Irrigated Land in

the Flood Plain of the River Moustiques

Etude de drainage en vu de la valorisation des terres irrigables dans la plaine de

Moustiques

Pre-Site Visit Preparation: the creation of field maps for the basin area using GIS

Students:Mary Strazer Magnea IngolfsdottirProject partners: Herrera Environmental Consultants Inc.

The Project

• Roughly 35,000 people of Northern, Haiti living and working in the vicinity of Les Moustiques river, are seasonally inundated by flood waters.

• Engineers from Herrera Consultants Inc. are planning a site visit to the area to assess the situation and create design alternatives.

• Before they go, they need a set of field maps of the basin area.

Objectives

It was our task to create GIS maps of the basin and watershed surrounding Les Moustiques in Haiti. In order to complete this task we needed to delineate the Riviere Moustiques drainage basin (watersheds, sub-basins, and streams), and develop georeferenced GIS maps of la plain de Moustiques.

Example of a

Field Map

How We Built the Maps

First, we converted the point data of the contours into a surface using the spatial analyst interpolate to raster tool

Contour Data we were given

Interpolation Surface

How We Built the Maps

Secondly, we used the spatial analyst hydrology tool and the raster calculator to create the watershed, basins, and streams.

Streams

Basin

Watershed

How We Built the Maps

Thirdly, we georeferenced our aerial photo to our contoured data.

Georeferencing

Final Product