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Example code to download shapefile from NSIDC website
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| library(tidyverse) | |
| library(sf) | |
| url <- "ftp://sidads.colorado.edu/DATASETS/NOAA/G02135/north/monthly/shapefiles/shp_extent/12_Dec/extent_N_201012_polygon_v3.0.zip" | |
| tempdir <- tempdir(check = TRUE) | |
| tempfile <- tempfile() | |
| download.file(url, tempfile, mode = "wb") | |
| unzipped <- unzip(tempfile, exdir = tempdir) | |
| sf <- read_sf(unzipped[grepl(".shp$", unzipped)]) %>% | |
| summarise() | |
| unlink(tempdir, recursive = TRUE, force = TRUE) |
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