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1 #!/usr/bin/env Rscript
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2
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3
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4 args <- commandArgs(trailingOnly = TRUE)
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5
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6 #Rscript clim_data.R 'worldclim' 'var' 'resolution' 'OutputFormat' #'FRA' #'prec1'
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7 if (length(args)==0 | args[1]=="-h" | args[1]=="--help"){
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8 print ("general script execution : Rscript clim_data.R \'worldclim\' \'var\' resolution \'OutputFormat\' #\'variable-to-plot\' #\'region_code\'")
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9 print ("eg : Rscript clim_data.R \'worldclim\' \'prec\' 10 \'raster\' #\'prec1' #\'FRA\'")
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10 q('no')
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11 }
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12
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13
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14 #Climatic variables dictionaries
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15 months<-c("January","February","March","April","May","June","July","August","September","October","November","December")
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16 bioclimatic_vars<-c("Annual Mean Temperature", "Mean Diurnal Range (Mean of monthly (max temp - min temp))", "Isothermality (BIO2/BIO7) (x 100)","Temperature Seasonality (standard deviation x100)","Max Temperature of Warmest Month","Min Temperature of Coldest Month","Temperature Annual Range (BIO5-BIO6)","Mean Temperature of Wettest Quarter","Mean Temperature of Driest Quarter","Mean Temperature of Warmest Quarter","Mean Temperature of Coldest Quarter","Annual Precipitation","Precipitation of Wettest Month","Precipitation of Driest Month","Precipitation Seasonality (Coefficient of Variation)","Precipitation of Wettest Quarter","Precipitation of Driest Quarter","Precipitation of Warmest Quarter","Precipitation of Coldest Quarter")
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17
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18 #Function to create custom plot title
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19 get_plot_title<-function(usr_var,usr_var_to_plot){
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20 match<-str_extract(usr_var_to_plot,"[0-9]+")
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21 if(usr_var %in% c("prec","tmin","tmax")){
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22 printable_var<-(months[as.integer(match)])
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23 if(usr_var=="prec"){
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24 printable_var<-paste(printable_var," precipitations (mm)",sep="")
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25 }else if(usr_var=="tmin"){
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26 printable_var<-paste(printable_var," minimum temperature (°C *10)",sep="")
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27 }else{
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28 printable_var<-paste(printable_var," maximum temperature (°C *10)",sep="")
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29 }
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30 }else if(usr_var=="bio"){
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31 printable_var<-(bioclimatic_vars[as.integer(match)])
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32 printable_var<-paste("Bioclimatic variable - ",printable_var,sep="")
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33 }
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34 title<-paste("Worldclim data - ",printable_var,".",sep="")
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35 return(title)
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36 }
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37
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38
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39 #Call libraries
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40 library('raster',quietly=TRUE)
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41 library(sp,quietly = TRUE, warn.conflicts = FALSE)
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42 library(ncdf4,quietly = TRUE, warn.conflicts = FALSE)
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3
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43 library(rgdal,quietly = TRUE, warn.conflicts = FALSE) #To save as geotif
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44 library(stringr)
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45
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46
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47 #Get args
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48 usr_data=args[1]
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49 usr_var=args[2]
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50 usr_res=as.numeric(args[3])
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51 usr_of=args[4]
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52
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53
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54 # Retrieve 'var' data from WorldClim
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55 global.var <- getData(usr_data, download = TRUE, var = usr_var, res = usr_res)
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56
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57 # Check if we actualy get some
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58 if (length(global.var)==0){
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59 cat("No data found.")
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60 }else{
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61 writeRaster(global.var, "output_writeRaster", format=usr_of,overwrite=TRUE)
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62 final_msg<-paste("WorldClim data for ", usr_var, " at resolution ", usr_res, " in ", usr_of, " format\n", sep="")
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63 cat(final_msg)
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64 }
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65
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66
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67
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68
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69
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70
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71 #################
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72 ##Visualisation##
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73 #################
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74
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75 #Get args
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76 if(length(args[5])>=0 && length(args[6])>=0){
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77 usr_var_to_plot=args[5]
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78 usr_plot_region=args[6]
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79 }else{q('no')}
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80
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81 list_region_mask<-c("FRA","DEU","GBR","ESP","ITA")
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82
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83 if(usr_plot_region %in% list_region_mask){
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84 #Country mask
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85 region <- getData("GADM",country=usr_plot_region,level=0)
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86 region_mask <- mask(global.var, region)
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87 region_var_to_plot_expression<-paste("region_mask$",usr_var_to_plot,sep="")
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88 }else{ #All map and resize manualy
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89 region_var_to_plot_expression<-paste("global.var$",usr_var_to_plot,sep="")
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90 }
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91
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92
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93 region_var_to_plot<-eval(parse(text=region_var_to_plot_expression))
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94
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95 #PLotmap
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96 jpeg(file="worldclim_plot_usr_region.jpeg",bg="white")
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97
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98 title<-get_plot_title(usr_var,usr_var_to_plot)
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99
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100
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101 if(usr_plot_region=="FRA"){
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102 #FRA
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103 plot(region_var_to_plot, xlim = c(-7, 12), ylim = c(40, 52), axes=TRUE,xlab="Longitude",ylab="Latitude",main=title)
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104 }else if(usr_plot_region=="GBR"){
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105 #GBR
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106 plot(region_var_to_plot, xlim = c(-10, 5), ylim = c(46, 63), axes=TRUE,xlab="Longitude",ylab="Latitude",main=title)
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107 }else if(usr_plot_region=="NA"){
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108 #North America :
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109 plot(region_ar_to_plot,xlim=c(-180,-50),ylim=c(10,75),xlab="Longitude",ylab="Latitude",main=title)
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110 }else if(usr_plot_region=="EU"){
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111 #Europe
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112 plot(region_var_to_plot,xlim=c(-28,48),ylim=c(34,72),xlab="Longitude",ylab="Latitude",main=title)
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113 }else if(usr_plot_region=="DEU"){
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114 #DEU
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115 plot(region_var_to_plot, xlim = c(5, 15), ylim = c(45, 57),axes=TRUE,xlab="Longitude",ylab="Latitude",main=title)
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116 }else if(usr_plot_region=="ESP"){
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117 #ESP
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118 plot(region_var_to_plot, xlim = c(-10, 6), ylim = c(35, 45), axes=TRUE,xlab="Longitude",ylab="Latitude", main=title)
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119 }else if(usr_plot_region=="ITA"){
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120 #ITA
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121 plot(region_var_to_plot, xlim = c(4, 20), ylim = c(35, 48), axes=TRUE,xlab="Longitude",ylab="Latitude", main=title)
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122 }else if(usr_plot_region=="WM"){
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123 #Worldmap
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124 plot(region_var_to_plot,xlab="Longitude",ylab="Latitude",main=title)
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125 }else if(usr_plot_region=="AUS"){
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126 #AUS
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127 plot(region_var_to_plot,xlim=c(110,155),ylim=c(-45,-10),xlab="Longitude",ylab="Latitude",axes=TRUE,main=title)
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128 }else{
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129 write("Error with country code.", stderr())
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130 q('no')
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131 }
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132
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133 garbage_output<-dev.off
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134
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135 #Exit
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136 q('no')
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