Morphometry

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Morphometry

 

quantitative description of the relief of the earth’s surface. The basic morphometric indexes are numerical measures of relief forms: linear, areal, and volumetric measures, absolute and relative elevations of individual geomorphological regions, the depth and density of dissection, and abstract indexes (coefficient of meandering of a river channel, coastline, and the like). Morphometric data are usually obtained by processing topographical maps, but the use of aerial photographs is also possible (employing stereophotogrammetric methods). Special morphometric maps or sets of maps are compiled on the basis of the measurements and computations made. Morphometric data are essential for planning structures, roads, steps to combat erosion, and the like.

References in periodicals archive ?
Fabricius, 1788) (Brachyura: Oregoniidae) are known to mature faster physiologically rather than morphometrically (Filina 2011).
The association between Computer-assisted Sperm Morphometry Analysis (CASMA) and statistical software have allowed cluster the spermatozoa according to morphometric parameters in morphometrically distinct subpopulations [8, 25, 36, 43].
Morphometrically, the teeth resemble the earlier collected specimens of the species Giraffokeryx punjabiensis present in the American Museum of Natural History New York, USA, the Indian Museum, Kolkata, India and the Punjab University Paleontological Collection Stored in Zoology Department, University of the Punjab, Lahore, Pakistan (Figs.
Although the food-responsive developmental plasticity of sea urchin larvae has been examined morphometrically (Boidron-Metairon, 1988; Strathmann et al, 1992; Heyland and Hodin, 2004; Miner, 2005; McAlister, 2008) and molecularly (Adams et al, 2011), genome-wide changes in gene expression associated with this phenomenon have not been explored.
The North structure and the Bloody Creek structure are morphometrically, geophysically, and petrographically similar.
fistula proved to be morphometrically independent from other members of the A.
Also, Yurchenko (2012) indicated the species-specific differences in the sperm ultrastructure within the Ostreidae (Rafinesque, 1815), which could be identified both ultrastructurally and morphometrically.
Specimens from 16 Tunisian Artemia populations (Table 1) were cultured in the laboratory, characterized morphometrically, and compared with cultured specimens from two Artemia franciscana populations (San Francisco Bay, California, USA; and Great Salt Lake, Utah, USA).
17) However, to date, no study has morphometrically evaluated the epithelial lining and fibrous capsule of KOTs at different times during their treatment with marsupialization.
In the same vein, this study was conducted to characterize morphometrically D.
Using BXD recombinant mice that develop age-related pigmentary dispersion depending upon their allelic composition, the optic nerve was removed, processed, and morphometrically analyzed.