Buffers around sample point along rivers.

Circular buffers around a sample point along centerline of rivers upstream of the Cachoeira Caldeirão Dam. A total of 7 buffers with different radii.

location

Amapá, Brazil.

coord. ref

WGS 84 (EPSG:4326).

Usage

rio_pontos_buff

Format

`rio_pontos_buff` is sf POLYGON geometry with 7 polygons and 9 fields, including:

subz_id

Unique identifier.

long

Longitude. Decimal degrees.

lat

Latitude. Decimal degrees.

impact

Dam impact. 1 = yes, 0 = no.

raio

Radius around point in meters.

Source

<https://fmichalski.wixsite.com/lecov>

Details

Buffers around a sample point along the Araguari river.

Examples

# plot to see the points
plot(rio_pontos_buff["raio"])


# visualize overlapping buffers with ggplot2
library(ggplot2)
rio_pontos_buff |>
# Arrange according to radius attribute in descending order
dplyr::arrange(desc(raio)) |>
# Make ggplot and set fill color to radius
ggplot(aes(fill = raio)) +
geom_sf()