map unit


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map unit

[′map ‚yü·nət]
(genetics)
A measure of genetic distance corresponding to a recombination frequency of 1% or 1 centriMorgan (cM).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
randomForest (soil map unit ~ geology + DEM + slope + curvature + Euclidean distance from streams + CTI + NDVI + clay minerals + iron oxide + geomorphons, data = dataset 1, importance = T, proximity = T, ntree = 250, mtry = 5) (4)
The U-matrix calculates distances between neighboring map units, and these distances can be visualized to represent clusters using a color scale on the map.
The collected map characteristics for the survey included among other items: full source reference, publication/outlet type, year, data source, scale, study area, map caption, language variable(s), symbology used (points, lines, polygons, or grid cells), boundary line characteristics, map unit (s), and the maximum number of languages or language items shown in one location.
Dominant soils in the study area were mapped as a Lankbush-Jenness association map unit (Elmore Area, Idaho, Soil Survey; http://soildatamart.nrcs.usda.gov accessed 4 February 2013) with inclusions of slickspot soils (Fisher et al., 1996).
Additionally, we chose to use vector shapes as mapping units instead of raster pixels to better correspond with soil and ecological variables; however, the individual polygons that formed the map units do not conform to landform shape well.
The projection is obtained by finding the BMU (best matching unit) of each data sample from the map, and increasing a counter in the map unit each time it is the BMU.
Chi-square test was applied for TWINSPAN groups and determined groups in order to understand the validity of the map units and the result of the test was significantly at the level of 1% ([chi square] = 21.448) (Table 3).
Ecological units of the eastern United States--First approximation (map and booklet of map unit tables).
Detailed descriptions for each soil map unit were made along ten-point sampling transects, set apart at 12 m (39 ft) intervals.
Detailed but nontechnical descriptions of each map unit (i.e., soil series).