Indian state to monitor floods via GIS mapping

Indian state to monitor floods via GIS mapping


Gujarat: The Indian state of Gujarat has begun a move to study the causes of flooding in various parts of the state and project steps needed to check damage by floods. The initiative is in the form of GIS mapping of the Mahi river basin. Once the project is completed on the Mahi, it will be replicated for the Tapi, Sabarmati and Damanganga basins.

“We will re-draw the contours on the map of the Mahi basin. We are currently analyzing the spread of water when released from dams. Suppose one lakh cusecs of water is released, we must know where it will spread and to what extent will it cause flooding. Similarly, we will study the changes when larger volumes are released,” said an official.

He further said that once the spread pattern is verified, the new contours will be placed on a fresh GIS map of the basin. “The exercise has been underway for the last few months and we are near completion. This is an important step towards mitigating the threat of floods. We began with Mahi because the basin is close by and comparatively easy to start with” said an official.

Officials said GIS mapping will also help civic bodies and urban planners as they can prevent expansion of cities into flood-prone areas.

Source: Times of India