​TOPOGRAPHIC SURVEY

Topographic surveys are conducted to determine the configuration of the Earth's surface, defined by the elevation of points on a portion of land and the location of natural and man-made features on it. LiDAR can be used to generate high-resolution topographic maps and 3D models of agricultural landscapes which can be used to identify and analyze terrain features, slopes, and elevation changes, which are crucial for the planning of irrigation systems, drainage, and field layout for the optimization of water usage and reduction of soil erosion. Moreover, contour maps can help in building rice terraces or the application of Sloping Agricultural Land Technology (SALT).

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CROP MANAGEMENT

Land surveyors in the Philippines also have a major role in crop management. LiDAR surveying helps in soil analysis by mapping the micro-topography of the soil surface to understand its different properties which are essential for effective soil management. Moreover, LiDAR helps in the monitoring of crop health and growth by providing detailed 3D models of the crops. This data can then be used to assess the plants and make informed decisions on the management of crops.

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FLOOD MANAGEMENT

Detailed topographic maps and river surveys enhance the understanding and assessment of exposure to flood risk and therefore strengthen the outcomes of flood studies. LiDAR technology provides detailed elevation maps that can accurately depict the contours of fields, drainage basins, and water channels which are essential for identifying flood-prone areas and the design of efficient drainage systems and irrigation canals that can mitigate flood risks. Flood mapping will enable the preparation of irrigation canals for greater crop yield and the identification of low-lying areas that can be made into rainwater reservoirs and fish pens.