TY - JOUR
T1 - Multi-parameter relief map from high-resolution DEMs
T2 - A case study of mudstone badland
AU - Chu, Hone Jay
AU - Chen, Yi Chin
AU - Ali, Muhammad Zeeshan
AU - Höfle, Bernhard
N1 - Funding Information:
The APC was funded by MOST (105-2119-M-006-031-, and 106-2119-M-018-003-). Acknowledgments: The authors thank the reviewers for their valuable comments and suggestions as well as Tain, K.K. for Area I data support.
Funding Information:
Funding: The APC was funded by MOST (105-2119-M-006-031-, and 106-2119-M-018-003-).
Publisher Copyright:
© 2019 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2019/4/1
Y1 - 2019/4/1
N2 - Topographic parameters of high-resolution digital elevation models (DEMs) with meter to sub-meter spatial resolution, such as slope, curvature, openness, and wetness index, show the spatial properties and surface characterizations of terrains. The multi-parameter relief map, including two-parameter (2P) or three-parameter (3P) information, can visualize the topographic slope and terrain concavities and convexities in the hue, saturation, and value (HSV) color system. Various combinations of the topographic parameters can be used in the relief map, for instance, using wetness index for upstream representation. In particular, 3P relief maps are integrated from three critical topographic parameters including wetness or aspect, slope, and openness data. This study offers an effective way to explore the combination of topographic parameters in visualizing terrain features using multi-parameter relief maps in badlands and in showing the effects of smoothing and parameter selection. The multi-parameter relief images of high-resolution DEMs clearly show micro-topographic features, e.g., popcorn-like morphology and rill.
AB - Topographic parameters of high-resolution digital elevation models (DEMs) with meter to sub-meter spatial resolution, such as slope, curvature, openness, and wetness index, show the spatial properties and surface characterizations of terrains. The multi-parameter relief map, including two-parameter (2P) or three-parameter (3P) information, can visualize the topographic slope and terrain concavities and convexities in the hue, saturation, and value (HSV) color system. Various combinations of the topographic parameters can be used in the relief map, for instance, using wetness index for upstream representation. In particular, 3P relief maps are integrated from three critical topographic parameters including wetness or aspect, slope, and openness data. This study offers an effective way to explore the combination of topographic parameters in visualizing terrain features using multi-parameter relief maps in badlands and in showing the effects of smoothing and parameter selection. The multi-parameter relief images of high-resolution DEMs clearly show micro-topographic features, e.g., popcorn-like morphology and rill.
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U2 - 10.3390/ijerph16071109
DO - 10.3390/ijerph16071109
M3 - Article
C2 - 30925700
AN - SCOPUS:85063962576
SN - 1661-7827
VL - 16
JO - International journal of environmental research and public health
JF - International journal of environmental research and public health
IS - 7
M1 - 1109
ER -