  We propose a novel search-and-rescue management method that relies on the
aerial deployment of Wireless Sensor Network (WSN) for locating victims after
floods. The sensor nodes will collect vital information such as heat signatures
for detecting human presence and location, the flow of flood. The sensor
modules are packed in a portable floating buoy with a user interface to convey
emergency messages to the base station. Sensor nodes are designed based on
disaster conditions, cost-effectiveness and deployed in the affected region by
a centrifugal dispersion system from a helicopter.
  A mobile ad-hoc network is set up by modifying the Low Energy Adaptive
Cluster Hierarchy (LEACH) protocol for greater efficiency and adoption of
multi-hop of Cluster Heads for long-distance communication to Base Station. The
model metrics have been defined considering previous rural floods in India. The
efficiency and power characteristics of the network are compared to other
protocols via simulations. The sensor data from the network makes resource
management, rescue planning and emergency priority more efficient, thus saving
more lives from floods.
