File:Ccsm4 beringia lgm tundratypes by temperature 1.png
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Summary
| Description |
English: Beringia tundra types according of calculated paleotemperature, during Last Glacial maximum.
Image is based avargage July temperature, that is produced with CCSM24 climate model. |
| Date | |
| Source | Own work |
| Author | Merikanto |
Source data is downloaded under this path
http://www.worldclim.org/paleo-climate1 archive copy at the Wayback Machine
Downscaled Paleoclimate data WorldClim 1.4 downscaled paleo climate Last Glacial Maximum 2.5 minutes tn, tx, pr, bi
http://biogeo.ucdavis.edu/data/climate/cmip5/lgm/cclgmtn_2-5m.zip http://biogeo.ucdavis.edu/data/climate/cmip5/lgm/cclgmtx_2-5m.zip
and unzip this
In this work is used tn,tx
cclgmtn7.tif cclgmtx7.tif
Also used QGIS command line GDAL utils and GMT (generic mapping tools)
In linux command line "sudo apt-get install gmt qgis kolourpaint4"
under ubuntu-based linux. Result image is rotated and cropped with Lubuntu picture viewer and Kolourpaint4
bash script
sorce1=cclgmtn7.tif
sorce2=cclgmtx7.tif
desti=cclgmtk10_7.tif
destinc=cclgmtk_t10_7.nc
destinc360=cclgmtk_s360_t10_7.nc
- gdal_calc.py -A $sorce1 -B $sorce2 --outfile=$desti --calc="(A+B)/20"
- gdal_translate -of netcdf $desti $destinc
- Rscript to360.r --args $destinc $destinc360 Band1 Band1 lon lat
- Rscript to360.r --args $destinc $destinc360 Band1 tkx10 lon lat
- beringia 1
gmt grdimage -K -JQ180/7.0i -Cuplow3.cpt -R-200.00/-120.00/50.00/80.00 -B5g5 -B+t" CAVM types of tundra, Beringia, LGM, CCSM4" $destinc360 > out.ps
gmt grdcontour -K -O -JQ180/7.0i -S4 -C3 -Cuplow3.cpt -Wc1.5,0/0/100 -Ac+f13p -R-200.00/-120.00/50.00/80.00 $destinc360 >> out.ps
psscale -Ef -Cuplow3.cpt -D7.6i/1.2i/2.6i/0.3i -L0.1 -O >> out.ps
psconvert -Tg out.ps
-30 0/0/127 0 0/0/127 ;pd. (ice & barren polar desert)
0 0/255/0 8 0/255/0 ;C (herb, forb, grass, prostrates)
8 255/0/0 12 255/0/0 ;E (shrubs, sometimes trees)
12 255/160/255 14 255/160/255 ;sa. (subarctic trees, shrubs)
B blue
F white
N 127.5
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 07:43, 15 August 2016 | | 3,381 × 1,247 (630 KB) | Merikanto | User created page with UploadWizard |
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