Sample points along rivers, ESPG: 31976.
rio_pontos_31976.Rd
A copy of "rio_pontos" transformed to a different coordinate reference system.
A total of 52 points are regularly spaced at approximately 5 km intervals. Used to develop before-after control-impact analysis of dam impacts on species including Giant Otters (https://doi.org/10.7717/peerj.14287) and Yellow-spotted River Turtles ( https://doi.org/10.1002/aqc.3775).
- location
Amapá, Brazil.
- coord. ref
SIRGAS 2000 / UTM zone 22N (EPSG:31976).
Format
`rio_pontos_31976` is sf POINT geometry with 52 points and 8 fields, including:
- subz_id
Unique identifier.
- long
Longitude. Decimal degrees.
- lat
Latitude. Decimal degrees.
- impact
Dam impact. 1 = yes, 0 = no.
Examples
# plot to see the points
if (requireNamespace("sf", quietly = TRUE)) {
library(sf)
data(rio_pontos_31976)
plot(rio_pontos_31976["rio"])
}