MATLAB functions for extracting hypsometry, stream-length gradient index, steepness index, chi gradient of channel and swath profiles from digital elevation model (DEM) and other spatial data for landscape characterisation

被引：37
作者：
Jaiswara, Nilesh K. [1 ]
Kotluri, Sravan Kumar [2 ]
Pandey, Prabha [1 ,2 ]
Pandey, Anand K. [1 ,2 ]
机构：
[1] Acad Sci & Innovat Res, Natl Geophys Res Inst, CSIR, Hyderabad 500007, India
[2] Natl Geophys Res Inst, CSIR, Hyderabad 500007, India
来源：
APPLIED COMPUTING AND GEOSCIENCES | 2020年 / 7卷 / 07期
关键词：
Landscape; Hypsometry; Stream length gradient index; Normalized steepness index; Chi(?) gradient; Swath profile; GEOMORPHIC EXPRESSION; DRAINAGE EVOLUTION; ACTIVE TECTONICS; SURFACE; UPLIFT; EXHUMATION; FOOTHILLS; CURVE; SPAIN; ARC;
D O I：
10.1016/j.acags.2020.100033
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
The landscape, developed by the interaction of geological processes, is represented by Digital Elevation Models (DEMs) of various spatial resolutions. These DEMs can be variously analysed for the spatial and linear morpho-metric indices for landscape characterisation. We have developed MATLAB functions for extracting Hypsometric integral (Hi), Stream Length-gradient (SL) index, Normalized steepness index (ksn), Chi (chi) gradient index and Swath profile with maximum, minimum and mean elevation profiles from DEM. These functions are tested on SRTM DEM (30 m, 90 m spatial resolution) and ASTER GDEM (30 m spatial resolution) from three different catchments with varying tectono-geomorphic setup. The swath profile of the TRMM precipitation data is also prepared to demonstrate the application of present functions on different raster dataset and their robustness for multi-parametric correlations. The user-friendly MATLAB functions provide automation and flexibility to extract the morphometric indices cited above from DEM and other raster data with user defined variables for different tectonic-geomorphology and environmental studies.
引用
收藏
页数：11
相关论文
共 69 条
  • [1] Anderson R. S., 2010, GEOMORPHOLOGY, DOI [10.1017/CBO9780511794827, DOI 10.1017/CB09780511794827]
  • [2] Relief and drainage evolution during the exhumation of the Sierra Nevada (SE Spain): Is denudation keeping pace with uplift?
    Azanon, J. M.
    Galve, J. P.
    Perez-Pena, J. V.
    Giaconia, F.
    Carvajal, R.
    Booth-Rea, G.
    Jabaloy, A.
    Vazquez, M.
    Azor, A.
    Roldan, F. J.
    [J]. TECTONOPHYSICS, 2015, 663 : 19 - 32
  • [3] Plateau 'pop-up' in the great 1897 Assam earthquake
    Bilham, R
    England, P
    [J]. NATURE, 2001, 410 (6830) : 806 - 809
  • [4] Topography, relief, and TRMM-derived rainfall variations along the Himalaya
    Bookhagen, B
    Burbank, DW
    [J]. GEOPHYSICAL RESEARCH LETTERS, 2006, 33 (08)
  • [5] Toward a complete Himalayan hydrological budget: Spatiotemporal distribution of snowmelt and rainfall and their impact on river discharge
    Bookhagen, Bodo
    Burbank, Douglas W.
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE, 2010, 115
  • [6] Bull W.B., 2007, Tectonic geomorphology of mountains: A new approach to paleoseismicity, DOI 10.1002/9780470692318
  • [7] Burbank DouglasW., 2011, Tectonic geomorphology
  • [8] CAUSES OF RECENT HIMALAYAN UPLIFT DEDUCED FROM DEPOSITED PATTERNS IN THE GANGES BASIN
    BURBANK, DW
    [J]. NATURE, 1992, 357 (6380) : 680 - 683
  • [9] Along-strike variations of morphotectonic features in the Western Foothills of Taiwan: tectonic implications based on stream-gradient and hypsometric analysis
    Chen, YC
    Sung, QC
    Cheng, KY
    [J]. GEOMORPHOLOGY, 2003, 56 (1-2) : 109 - 137
  • [10] Surface uplift, tectonics, and erosion of eastern Tibet from large-scale drainage patterns
    Clark, MK
    Schoenbohm, LM
    Royden, LH
    Whipple, KX
    Burchfiel, BC
    Zhang, X
    Tang, W
    Wang, E
    Chen, L
    [J]. TECTONICS, 2004, 23 (01) : TC10061 - 20
1234567