survey_blocks: Active survey blocks

In pbs-assess/gfdata: Data Extraction for DFO PBS Groundfish Stocks

Active survey blocks

Description

Active survey blocks for DFO Pacific groundfish surveys. Obtained via gfdata::get_active_survey_blocks() with some cleaning as documented in data-raw/survey_blocks.R.

Usage

survey_blocks

Format

Simple feature (sf) collection with 66293 features and 6 fields:

survey_abbrev

Survey abbreviation.

survey_series_id

Unique identifier for the survey series.

station_key

Unique identifier for each grid cell

depth_m

Depth in metres.

active_block

Is block actively fished as of date downloaded: e.g., attr(gfdata::survey_blocks, "date-downloaded"))

geometry

Represents grid cell.

area

Overwater area in km^2.

Examples

requireNamespace("ggplot2", quietly = TRUE)
library(sf)
library(ggplot2)
gfdata::survey_blocks |>
  filter(active_block) |>
  ggplot(aes(colour = survey_abbrev)) +
  geom_sf() +
  theme_minimal() +
  scale_colour_brewer(palette = "Dark2")
attr(gfdata::survey_blocks, "date-generated")
attr(gfdata::survey_blocks, "date-downloaded")

pbs-assess/gfdata documentation built on Feb. 16, 2025, 7:47 a.m.