Malawi Animated Rainfall Map

Couple of months ago, Charles Langton Vanya of Malawi contacted me on how to make animated rainfall map  in R. I was very busy that I was not able to respond. Anyway, to Mr. Vanya, here is the code you can play on to produce a similar map as below.

Mindoro Digital Elevation Map Updated

Almost 2 years ago, I made a post on creating digital elevation map using R. For that post, I used the basic R plotting function to create the map. Recently, I started learning to use ggplot2 package for visualizing data. Today, I created the same map that I did two years ago, using raster and gpplot2, its for you guys to tell the difference.

Happy Coding! Use R!

Before                                                       

After

Provincial Monthly Rainfall of the Philippines from WORLDCLIM

Preparing for a future conference on climate change, I downloaded and extracted average monthly rainfall in the Philippines from worldclim.org. Using maptools, raster, and animation package in R, I produced an animation of average monthly rainfall of the country.

Provincial Map using GADM

This blog demonstrates how to produce political/provincial boundary map (below) using R maptools and raster packages.


 

3D Maps in R

Talking about elevation, one can also plot a wire frame 3D view of an area using the persp function. Using the same data source from my previous post, 3D view of Marinduque, Philippines was produced using the following code below:

 

#############################################################################################
library(maptools)
library(raster)
alt <- getData('alt', country='PHL')
adm <- getData('GADM', country='PHL', leve=1)
mar<-(adm[adm$NAME_1=="Marinduque",])
maralt<-crop(alt,mar)
persp(maralt, exp=0.2,phi=35, xlab="Longitude", ylab="Latitude", zlab="Elevation")

#############################################################################################
 persp(maralt, exp=0.2,phi=35, xlab="Longitude", ylab="Latitude", zlab="Elevation", shade=0.45, col="green4")
#############################################################################################

Mindoro Digital Elevation Map

Saw a map produced by my previous student using a commercial GIS software.Using R raster package and data from diva-gis.org. I produced a similar map.