James Grecian jamesgrecian

Marine Ecology, Data Science and R

jamesgrecian / cookie_map.r

Last active June 23, 2022 12:42

Create a circular map of the Southern ocean using ggplot2

	###############################################
	### Example Southern ocean map using ggplot ###
	###############################################

	# WJ Grecian 2022-06-23

	# load libraries
	require(tidyverse)
	require(sf)
	require(raster)

jamesgrecian / globcolour_download

Created April 13, 2021 15:57

Example script for globcolour chl-a data download

	###################################################
	### Download globcolour.info data from ftp site ###
	###################################################

	# Load libraries
	require(raster)
	require(tidyverse)

	# first request data from https://hermes.acri.fr/index.php?class=archive
	# then emailed ftp site address

jamesgrecian / Generate map wedge in ggplot.r

Last active June 12, 2019 17:35

Example script to generate a map using ggplot2 with similar look to Ocean Data View

	###########################################################################################
	### Example script to generate a map using ggplot2 with similar look to Ocean Data View ###
	###########################################################################################

	# The example map I am trying to recreate is here:
	# https://twitter.com/JamesGrecian/status/1137018574504153089?s=20

	# Load in libraries
	require(marmap) # for bathymetry data
	require(tidyverse)

jamesgrecian / kernel.r

Created July 17, 2018 13:39

Example script to generate a bivariate kernel from telemetry data using adehabitat

	#####################################################################################################
	### Example script to generate and plot a bivariate kernel utilisation distribution from GPS data ###
	#####################################################################################################

	# Load libraries
	require(tidyverse)
	require(viridis)
	require(rworldmap)
	require(sf)
	require(raster)

jamesgrecian / animation.r

Last active April 16, 2019 01:52

Animate animal movement tracks

	##########################################
	### Example script to animate GPS data ###
	##########################################

	# Load libraries
	require(tidyverse)
	require(animation)
	require(viridis)
	require(rworldmap)
	require(sf)

jamesgrecian / habitat preference gam.r

Last active August 15, 2018 20:40

Example script to generate habitat preference GAM using telemetry data and random pseudo-absence points

	#####################################################
	### Some pointers for habitat preference analysis ###
	#####################################################

	#Load in libraries
	require(sf)
	require(tidyverse)
	require(viridis)
	require(rworldmap)
	require(raster)

jamesgrecian / extract NSIDC.r

Last active June 12, 2018 15:08

Extract NSIDC geotiff data to points

	############################################
	### Extract NSIDC geotiff data to points ###
	############################################

	#Many thanks to mdsumner for help with this:
	#https://github.com/mdsumner/extractNSIDC/blob/master/extract_script.R

	#Load libraries
	require(tidyverse)
	require(lubridate)