File:Beringia 8000bp 3.png

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Original file (3,066 × 1,422 pixels, file size: 318 KB, MIME type: image/png)

Captions

Captions

Beringia, 8000 years ago

Summary

[edit]
Description
English: Beringia, 8000 years ago, Just after Bering Strait is opened.
Date
Source Own work
Author Merikanto
Camera location65° 00′ 00″ N, 180° 00′ 00″ E  Heading=1° Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo


https://chelsa-climate.org/chelsa-trace21k/

https://envicloud.wsl.ch/#/?prefix=chelsa%2Fchelsa_V1%2Fchelsa_trace%2F

directory orog

Tex dem file

https://os.zhdk.cloud.switch.ch/envicloud/chelsa/chelsa_V1/chelsa_trace/orog/CHELSA_TraCE21k_dem_-80_V1.0.tif

https://os.zhdk.cloud.switch.ch/envicloud/chelsa/chelsa_V1/chelsa_trace/orog/CHELSA_TraCE21k_gle_-80_V1.0.tif

https://os.zhdk.cloud.switch.ch/envicloud/chelsa/chelsa_V1/chelsa_trace/orog/CHELSA_TraCE21k_glz_-80_V1.0.tif


Trace21ka selected data ownloading "R" script is under this link

File:Beringia_8000bp_1.png


Citation:

Karger, D. N., Nobis, M. P., Normand, S., Graham, C. H., & Zimmermann, N. E. (2021). CHELSA-TraCE21k v1. 0. Downscaled transient temperature and precipitation data since the last glacial maximum. Climate of the Past Discussions, 1-27.



rem rem chelsa trace21ka orography and glaciers of beringia rem rem CHELSA_TraCE21k_dem_-80_V1.0.tif rem rem Windows 10 bat file rem uses gmt 6.x, gdal, R 4.03 rem rem v 0000.0006 rem 10.10.2021 rem

set taimi=80

rscript dl1.r %taimi%

set kaption=-B+glightblue+t"Beringia "%taimi%"00 years ago"

set rect1=-R-220.0/-120.0/40.0/80.0 set rect2=-R140/260/40/80

set size1=-JQ24 set annot1=-B10m10m

set namebase1=CHELSA_TraCE21k_ set namebase2=_V1.0.tif

set params1=%size1% %rect1%

set inputdem=indata\%namebase1%dem_-%taimi%%namebase2% set inputgle=indata\%namebase1%gle_-%taimi%%namebase2% set inputglz=indata\%namebase1%glz_-%taimi%%namebase2%

rem upscale grid, because in 180 deg is gap

del dem.grd del gle.grd del glz.grd del sign.grd

gdalwarp -of netcdf -ts 10000 0 %inputdem% dem.grd gdalwarp -of netcdf -ts 10000 0 %inputgle% gle.grd gdalwarp -of netcdf -ts 10000 0 %inputglz% glz.grd grdmath dem.grd SIGN = sign.grd grdmath glz.grd SIGN = gsign.grd

set dem1=./dem.grd set gle1=./gle.grd set glz1=./glz.grd


gmt makecpt -Chot > my_sea.cpt gmt makecpt -Cetopo1 > my_topo.cpt gmt makecpt -Cgebco > my_glacier.cpt gmt makecpt -Clightblue,darkgreen,darkgreen -T-10000/10000/10000 > colors1.cpt

gmt begin out png

psbasemap %params1% %kaption% -Ba10

grdimage %dem1% %params1% -Q -Ccolors1.cpt grdimage %glz1% %params1% -Q -Cmy_glacier.cpt

gmt grdcontour sign.grd %params1% -W0.15p,black -L-1/1 -C1 gmt grdcontour gsign.grd %params1% -W0.0075p,220/220/255 -L0/2 -C1


gmt end



Downloader



    1. download some selected chelsa trace21ka files from chelsa repository
    2. R 4.03 script
    3. 10.10.2021
    4. 0000.0005
    1. set timeout greater than 60, so we can download big files

options(timeout=2400)


download_trace21ka<-function(taimi, variable1, variable2) { address1="https://os.zhdk.cloud.switch.ch/envicloud/chelsa" address2="/chelsa_V1/chelsa_trace/" namebase1="CHELSA_TraCE21k_" namebase2="_V1.0.tif" url1=paste0(address1,address2,variable2,"/") dolly1=paste0(url1,namebase1,variable1,"_-",taimi,namebase2) desti1=paste0("indata/",namebase1,variable1,"_-",taimi,namebase2) #dolly1="https://os.zhdk.cloud.switch.ch/envicloud/chelsa/chelsa_V1/chelsa_trace/orog/CHELSA_TraCE21k_dem_-100_V1.0.tif" #desti1="out.tif" download.file(dolly1,desti1,method = "libcurl", mode = "wb" ) }


download_selected_trace29ka<-function(taimi) { variable2="orog" variable1="dem" download_trace21ka(taimi, variable1, variable2) variable1="glz" download_trace21ka(taimi, variable1, variable2) variable1="gle" download_trace21ka(taimi, variable1, variable2)

variable1="tasmax_7" variable2="tasmax" download_trace21ka(taimi, variable1, variable2)

variable1="tasmin_7" variable2="tasmin" download_trace21ka(taimi, variable1, variable2)

variable1="tasmax_1" variable2="tasmax" download_trace21ka(taimi, variable1, variable2)

variable1="tasmin_1" variable2="tasmin" download_trace21ka(taimi, variable1, variable2)

variable1="pr_7" variable2="pr" download_trace21ka(taimi, variable1, variable2)

variable1="pr_1" variable2="pr" download_trace21ka(taimi, variable1, variable2)

variable1="bio01" variable2="bio" download_trace21ka(taimi, variable1, variable2)

variable1="bio12" variable2="bio" download_trace21ka(taimi, variable1, variable2)

variable1="swe" variable2="bio" download_trace21ka(taimi, variable1, variable2)


variable1="scd" variable2="bio" download_trace21ka(taimi, variable1, variable2)

print("Trace21ka stuff downloaded.")

}


download_trace29ka_pr_bio<-function(taimi) {

variable1="bio01" variable2="bio" download_trace21ka(taimi, variable1, variable2)

variable1="bio12" variable2="bio" download_trace21ka(taimi, variable1, variable2)

variable1="pr_7" variable2="pr" download_trace21ka(taimi, variable1, variable2)

variable1="pr_1" variable2="pr" download_trace21ka(taimi, variable1, variable2) }



          1. unlink("./indata", recursive=TRUE)

dir.create("./indata")

args = commandArgs(trailingOnly=TRUE)

  1. print (args[1])

taimi=args[1]

print(taimi)


download_selected_trace29ka(taimi)

print(".")

Licensing

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w:en:Creative Commons
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File history

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Date/TimeThumbnailDimensionsUserComment
current07:54, 9 October 2021Thumbnail for version as of 07:54, 9 October 20213,066 × 1,422 (318 KB)Merikanto (talk | contribs)Update
12:49, 8 October 2021Thumbnail for version as of 12:49, 8 October 20213,066 × 1,422 (445 KB)Merikanto (talk | contribs)Correction of error
12:14, 8 October 2021Thumbnail for version as of 12:14, 8 October 20213,066 × 1,422 (381 KB)Merikanto (talk | contribs)Uploaded own work with UploadWizard

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