File:Dyatlov pass incident avalanche possibility map 2.svg

DescriptionDyatlov pass incident avalanche possibility map 2.svg	English: Possibility of avalanche of tent site of Dyatlov pass incident. Red contours, height. Green contours, slope. Ovet 15 dagrees in specila conditions can occur avalanche, over 30 dagrees avalanches are frequent. This maps shows that acalances can occur almost neat Dyalov incident tent site,
Date	2 February 2021
Source	Own work
Author	Merikanto
SVG development InfoField	The SVG code is valid.   This map was created with an unknown SVG tool. This SVG map contains embedded raster graphics.[1] Such images are liable to produce inferior results when scaled to different sizes (as well as possibly being very inefficient in file size). If appropriate to do so, they should be replaced with images created using vector graphics. Note: This template is only supposed to be used if the SVG file mixes vector and raster graphics. If the SVG file only contains raster graphics {{FakeSVG}} is supposed to be used. See also {{TopoSVG}}.

Camera location	61° 45′ 31″ N, 59° 25′ 46″ E	View this and other nearby images on: OpenStreetMap	61.758611; 59.429444

Genetric mapping tools 6.0 code

GMT 6 windows 10 .bat file.

Source of data: JAXA ASTER

rem rem dyatlov pass avalance possibility rem assumes avalanches at slope 15-65 rem weibull distribution, stdev 20 rem gmt 6 code - bat for windows 10 rem 2.2.2021 0000.0000 rem

gmt makecpt -Cpolar -T-25/25/1 > colors.cpt

rem gmt makecpt -Cpolar -T0/1/0.01 > colors2.cpt gmt makecpt -Crainbow -T0/0.30/0.01 > colors2.cpt

gmt makecpt -Cgebco -T700/1000/1 > height.cpt echo 800 100/120/140 900 220/255/180 > palette2.cpt echo 900 220/255/180 1000 255/210/150 >> palette2.cpt echo B black >> palette2.cpt echo F white >> palette2.cpt echo N 127.5 >> palette2.cpt

grdgradient ./djatlov_grid/pohja.tif -D -Sslope.nc grdmath slope.nc ATAN PI DIV 180 MUL = slope2.nc

rem grdmath slope2.nc 25 GT = aval1.nc rem grdmath slope2.nc 45 LT = aval2.nc grdmath slope2.nc 40 SUB ABS = aval1.nc grdmath slope2.nc 40 SUB = aval1a.nc

grdmath aval1.nc 20 1 WPDF 3 MUL = aval2.nc rem grdmath aval1a.nc 0 ZPDF = aval2.nc

rem iso alue rem gmt grdimage -nl -JQ18 -R59.425/59.46/61.752/61.773 ./djatlov_grid/pohja.tif -B1m1m -Cpalette2.cpt -K -V -P > avalanche_map.ps

rem iso vuori rem gmt grdimage -nl -JQ18 -R59.417/59.44/61.752/61.764 ./djatlov_grid/pohja.tif -B30s30s -Cpalette2.cpt -K -V -P > avalanche_map.ps

rem gmt grdimage -JQ18 -R59.427/59.434/61.754/61.762 slope2.nc -B10s10s -Ccolors.cpt -V -P -K > avalanche_map.ps rem gmt grdimage -JQ18 -R59.42/59.434/61.752/61.762 ./djatlov_grid/pohja.tif -B10s10s -Cpalette2.cpt -V -P -K > avalanche_map.ps

rem gmt grdimage -JQ18 -R59.42/59.434/61.752/61.762 aval1.nc -B10s10s -Ccolors.cpt -V -P -K > avalanche_map.ps rem gmt grdimage -JQ18 -R59.42/59.434/61.752/61.762 aval2.nc -B10s10s -Ccolors2.cpt -V -P -K > avalanche_map.ps

gmt grdimage -JQ18 -R59.427/59.432/61.757/61.76 aval2.nc -B5s5s -Ccolors2.cpt -V -P -K > avalanche_map.ps

gmt grdcontour -J -R -B -C5 -Wa0.8,127/0/0@20 -Wc0.3,150/0/0@20 -A20+f16p ./djatlov_grid/pohja.tif -V -P -O -K >> avalanche_map.ps

gmt grdcontour -J -R -B -C2.5 -Wa0.8,0/255/0 -Wc0.3,0/255/0 -A5+f16p slope2.nc -V -P -O -K >> avalanche_map.ps

rem gmt grdcontour -J -R -B -C5 -Wa0.8,127/0/0@50 -Wc0.3,150/0/0@30 -A5+f16p slope2.nc -V -P -O -K >> avalanche_map.ps rem gmt grdcontour -J -R -B -C1 -Wa0.8,127/0/0@50 -Wc0.3,150/0/0@30 -A5+f16p aval1.nc -V -P -O -K >> avalanche_map.ps

gmt pscoast -J -R -W2 -N2 -S0 -Lf59.43/61.7575/61.7575/0.10+l --FONT_ANNOT_PRIMARY=18p --LABEL_FONT_SIZE=18p --MAP_SCALE_HEIGHT=0.3 --MAP_TICK_PEN_PRIMARY=thicker,black -V -P -O -K >> avalanche_map.ps

echo 59.429409 61.7586180 > cache.txt gmt psxy cache.txt -J -R -St2.4 -G- -W2p,Yellow,.. -V -P -O -K >> avalanche_map.ps gmt psxy cache.txt -J -R -St0.75 -G- -W4p,Yellow -V -P -O -K >> avalanche_map.ps rem gmt psxy cache.txt -J -R -St0.75 -G127/127/200 -W4p,DarkBlue -V -P -O -K >> avalanche_map.ps

rem from net 2 rem echo 59.429408832017444 61.758618044722574 > cache.txt rem gmt psxy cache.txt -J -R -St2 -G- -W5p,DarkBlue -V -P -O -K >> avalanche_map.ps rem dyalov pass suggestion 2 rem echo 59.42943333 61.758566667 > cache.txt rem gmt psxy cache.txt -J -R -St2 -G- -W2p,DarkBlue -V -P -O -K >> avalanche_map.ps

rem djatlov.com suggestion 1 rem echo 59.43123 61.75877 > cache.txt rem gmt psxy cache.txt -J -R -St2 -G- -W2p,DarkGreen,- -V -P -O -K >> avalanche_map.ps rem measure from net 1 rem echo 59.429433 61.758533 > cache.txt rem gmt psxy cache.txt -J -R -St2 -G- -W2p,DarkRed,- -V -P -O -K >> avalanche_map.ps

echo 59.4312 61.7596 60 0 1 rm Tent > cache.txt gmt pstext cache.txt -J -R -F+f60p,Sans-Serif,Yellow+jBL -V -P -O >> avalanche_map.ps

gmt psconvert ./avalanche_map.ps -A -Tg gmt psconvert ./avalanche_map.ps -A -Tf

rem using poppler pdftocairo.exe -svg "avalanche_map.pdf" "avalanche_map.svg"

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