If you don’t have accurate breaklines for your Digital Terrain Model (DTM), you may encounter several issues that could affect the quality and usability of your final DTM. Breaklines are important in representing terrain features and ensuring that the DTM accurately portrays the topography of the area. Inaccurate or missing breaklines can lead to the following problems:
- Incorrect representation of terrain features: Without accurate breaklines, the DTM may not properly represent important features like ridges, valleys, cliffs, or other abrupt changes in elevation. This can lead to misinterpretations and poor decision-making based on the DTM.
- Inaccurate calculations: Inaccurate breaklines can result in incorrect elevation data, which can affect calculations such as slope, aspect, and volume. This can be particularly problematic in applications like hydrological modeling, engineering design, and construction planning.
- Inaccurate visualization: Inaccurate breaklines can cause the visualization of the DTM to be misleading, making it difficult to identify and understand important terrain features. This can have negative implications for users who rely on the DTM for analysis, planning, or communication.
- Increased uncertainty: Without accurate breaklines, the overall uncertainty in the DTM may increase, making it less reliable for a variety of applications.
- Compromised downstream analyses: A DTM serves as the foundation for many geospatial analyses, such as floodplain mapping, viewshed analysis, and environmental impact assessments. Inaccurate breaklines can compromise the results of these analyses, leading to potential errors in decision-making.
To mitigate these issues, it is essential to invest time and effort into obtaining accurate breaklines for your DTM. Datasight’s Breakline Builder software analyzes point clouds to create breaklines for your digital terrain models. DTM’s have never been this fast, easy, accurate, or affordable.