Simulation of Maritime Joint Sea-Air Search Trend Using 3D GIS

摘要

Joint sea-air search at sea is the search operations which aircrafts and vessels are coordinated, is the most effective way to find maritime targets in distress. Present search and rescue decision-making systems based on 2D GIS (such as ECS, Electronic Chart System) are not intuitive to show three-dimensional search activity, affecting the effectiveness of decision-making. 3D GIS is an intuitive and accurate way to express realistic geographic information, it supports three-dimensional spatial analysis and visualization, so it's suitable for joint sea-air search operations simulation. This paper introduces simulation process of sea-air search trend at sea using 3D GIS, which helps search commander to judge search trend (including search efforts' dynamic and degree of area coverage), improving their capabilities to command search operations.