AAMGST is capable of producing a wide array of high-resolution Digital Terrain Models. Our strong technical team is capable of producing accurate data with cost-efficient methods. Our staff is skilled in positioning the break lines at the required places, and our team's skills have been upgraded according to the latest available technologies. We follow in-house developed quality check programs and procedures to exceed client requirements. Our photogrammetric team members are experts in manual contours. Final DTM data has been submitted in different formats like ASCII, TIN, ESRI ASCII grid, GeoTiff, and Img.
AAMGST has delivered Digital Terrain Models for multiple purposes, including initial mine designs, tailing layouts, monitoring of oilfields, and earth morphological changes.
Digital Terrain Model (DTM), Digital Elevation Model (DEM), and Digital Surface Model (DSM) are important tools used in Geographic Information Systems (GIS) for analyzing and visualizing topographical data. Each of these models serves a specific purpose in depicting the Earth's surface in digital form, allowing for a wide range of applications in fields such as geology, environmental science, urban planning, and agriculture.
Digital Surface Model
A Digital Surface Model (DSM) is a digital representation of the Earth's surface as observed by a sensor or observer, including all surface features such as buildings, vegetation, and other objects. Unlike a Digital Terrain Model (DTM), which represents the bare earth surface without any objects, a DSM includes these surface features in addition to the bare terrain. DSMs are typically derived from remote sensing data sources such as aerial photography, satellite imagery, or LiDAR data. These data sources provide elevation information for each point on the Earth's surface, allowing for the creation of a detailed three-dimensional model that accurately reflects the terrain and surface features. Overall, Digital Surface Models are powerful geospatial datasets that provide detailed and comprehensive information about the Earth's surface, enabling a wide range of applications in diverse fields.
Digital Terrain Model
A Digital Terrain Model (DTM) is a digital representation of the bare earth surface, devoid of any surface features such as buildings, vegetation, or other structures. It provides elevation data for each point on the terrain, allowing for the creation of a detailed three-dimensional model of the Earth's surface. DTMs are typically derived from various remote sensing technologies, including LiDAR, radar, or photogrammetry. These technologies capture elevation information by measuring the distance between the sensor and the Earth's surface, allowing for the creation of high-resolution elevation models. Overall, Digital Terrain Models are valuable geospatial datasets that provide essential information about the Earth's surface, supporting a wide range of applications across different disciplines and industries.
Digital Elevation Model
A Digital Elevation Model (DEM) is a digital representation of the Earth's surface that provides elevation data for each point on a grid, typically arranged in a raster format. Unlike a Digital Terrain Model (DTM), which represents only the bare earth surface without any surface features, a DEM includes both terrain and any surface features such as buildings, vegetation, and other structures. DEM data is commonly derived from various remote sensing technologies, including LiDAR, radar, photogrammetry, and satellite imagery. These technologies capture elevation information by measuring the distance between the sensor and the Earth's surface, allowing for the creation of detailed elevation models. Overall, Digital Elevation Models are valuable geospatial datasets that provide essential information about the Earth's surface, supporting a wide range of applications across different disciplines and industries.
3D Surface Model
A 3D surface model is a digital representation of the Earth's surface that captures its three-dimensional geometry and spatial characteristics. Unlike traditional 2D maps or elevation models, which represent terrain in two dimensions (latitude and longitude, plus elevation), 3D surface models provide a more immersive and detailed depiction of the landscape. Overall, 3D surface models offer a powerful tool for visualizing, analyzing, and understanding the Earth's surface in three dimensions, with applications spanning a wide range of fields and industries.
Triangulated Irregular Network
A Triangulated Irregular Network (TIN) is a type of surface model used in GIS (Geographic Information Systems) and terrain analysis to represent three-dimensional surfaces. It is composed of a set of non-overlapping triangles that cover the terrain, where each triangle is defined by three vertices and represents a local approximation of the surface. Overall, Triangulated Irregular Networks are valuable tools for representing and analysing terrain surfaces, providing a flexible and accurate representation of three-dimensional landscapes in GIS and terrain modelling applications.
In conclusion, DTM, DEM, and DSM are essential components of GIS that provide valuable insights into the Earth's surface in varying levels of detail. Whether studying terrain characteristics, analyzing land cover, or planning infrastructure projects, these models offer a wealth of information that can be leveraged for a wide range of applications in different fields. As technology continues to advance, the use of these models will only become more prevalent in the realm of spatial analysis and decision-making.