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Updated: Jan 27, 2026
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Multi-Parameter Relief Map from High-Resolution DEMs: A Case Study of Mudstone Badland
Hone-Jay Chu1, Yi-Chin Chen2, Muhammad Zeeshan Ali3
1Department of Geomatics, National Cheng Kung University, Tainan City 701, Taiwan. honejaychu@geomatics.ncku.edu.tw.
Summary
Multi-parameter relief maps effectively visualize terrain features using high-resolution digital elevation models (DEMs). This method enhances the understanding of micro-topographic details in areas like badlands.
Area of Science:
- Geomorphometry
- Digital Elevation Model Analysis
- Terrain Visualization
Background:
- High-resolution digital elevation models (DEMs) provide detailed topographic data.
- Traditional topographic parameters like slope and curvature offer insights into terrain characteristics.
- Visualizing complex terrain features often requires advanced mapping techniques.
Purpose of the Study:
- To explore the effectiveness of multi-parameter relief maps in visualizing terrain features.
- To demonstrate the application of two-parameter (2P) and three-parameter (3P) relief maps using various topographic parameters.
- To analyze the impact of parameter selection and smoothing on the visualization of micro-topographic features in badlands.
Main Methods:
- Utilizing high-resolution DEMs with meter to sub-meter spatial resolution.
- Calculating topographic parameters including slope, curvature, openness, and wetness index.
- Applying the hue, saturation, and value (HSV) color system to create 2P and 3P multi-parameter relief maps.
- Investigating combinations of parameters such as wetness index, slope, and openness.
Main Results:
- Multi-parameter relief maps, especially 3P maps, effectively visualize complex terrain characteristics.
- The HSV color system allows for intuitive representation of topographic slope, concavities, and convexities.
- High-resolution DEMs combined with multi-parameter mapping reveal subtle micro-topographic features like popcorn-like morphology and rills.
- The study demonstrated the influence of smoothing and parameter choice on the resulting visualizations.
Conclusions:
- Multi-parameter relief maps offer a powerful approach for detailed terrain feature visualization.
- This technique is particularly effective for analyzing challenging terrains such as badlands.
- The selection and combination of topographic parameters significantly impact the clarity and interpretability of micro-topographic features.
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