README.md

Introduction

Package geo is a collection of useful utilities for mainly plotting marine data in the North Atlantic

To install, run:

pak::pak("hafro/geo")

Example use

Simple plot of Iceland

library(geo)
geoplot()

Let’s add some data into the mix. Read the spring survey tow station locations from data.hafro.is:

spring <- 
  read.csv("http://data.hafro.is/research/survey_stations/spring.csv")

head(spring)
#>   Square Tow Subsq North1  West1 North2  West2 Depth1 Depth2 Sweeps Warp1 Warp2
#> 1    310   1     1 632300 103900 632160 104750    430    438     45   525   460
#> 2    310  11     3 631500 104950 631700 104100    399    412     45   470   450
#> 3    311   1     2 632907 110122 633307 105986    333    344     45   435   420
#> 4    311   2     1 632530 114370 632900 114070    392    408     45   545   540
#> 5    311  11     3 631300 114200 631500 113400    421    428     45   515   510
#> 6    311  12     4 630500 112000 630700 111300    447    454     45   520   510
#>   Warp3 Dir Length
#> 1   590 250      4
#> 2   490  40      4
#> 3   450  20      4
#> 4   550  20      4
#> 5   520  60      4
#> 6   530  70      4

Convert location data to decimal positions:

spring <- 
  geoconvert(spring,col.names = c('North1','West1'))
spring <- 
  geoconvert(spring,col.names = c('North2','West2'))

Now plot:

geoplot(spring$North1,-spring$West1)