Package index • blueterra

Input and validation

Read, validate, and inspect bathymetric or elevation rasters.

read_bathy(): Read a bathymetric or elevation raster
as_bathy(): Coerce common raster inputs to a bathymetry raster
validate_bathy(): Validate a bathymetric or elevation raster
check_bathy_crs(): Check raster CRS for geomorphometry
check_bathy_units(): Check bathymetry value conventions
bathy_info(): Summarize a bathymetric or elevation raster
blueterra_example() blueterra_examples() blueterra_extdata(): Locate package example files
blueterra_options(): Configure blueterra runtime options

Prepare surfaces before terrain derivatives are calculated.

prepare_bathy(): Prepare a bathymetric or elevation raster
crop_bathy() mask_bathy() resample_bathy() project_bathy(): Crop, mask, resample, and project bathymetry
smooth_bathy(): Smooth a bathymetric or elevation raster
depth_filter() invert_depth() set_depth_positive() set_depth_negative(): Filter or convert bathymetric depth values

Derive terrain attributes from submerged surfaces.

derive_terrain(): Derive bathymetric terrain metrics
derive_metric_stack(): Build a stack of terrain metrics
derive_slope() derive_aspect() derive_northness() derive_eastness() derive_hillshade() derive_roughness() derive_tri() derive_tpi() derive_rugosity() derive_curvature() derive_surface_area_ratio(): Derive individual terrain metrics
derive_bpi() derive_multiscale_bpi(): Derive bathymetric position index

Add user-defined raster layers, formulas, and process group catalogs.

add_metric_layers(): Add metric layers to an existing raster stack
derive_custom_metric(): Derive a custom metric from raster layers
create_metric_catalog() extend_metric_catalog() validate_metric_catalog(): Create and validate metric catalog rows
metric_catalog() process_groups(): Terrain metric catalog
metric_catalog_data: Terrain metric catalog data
assign_process_groups(): Assign metrics to process groups
select_process_representatives(): Select representative metrics for each process group
summarize_process_groups(): Summarize process group representation
standardize_metric_names() rename_metric_layers(): Standardize or rename metric layers

Extract cross-sections and depth-following terrain summaries.

estimate_surface_orientation(): Estimate mean surface orientation from a bathymetric raster
make_transects(): Create transects across polygon zones
sample_transects() extract_cross_sections(): Sample rasters along transects
summarize_cross_sections(): Summarize sampled cross-sections
extract_isobaths(): Extract isobaths from a raster
make_isobath_corridors(): Build isobath corridors
extract_isobath_corridors(): Extract terrain cells in isobath corridors
summarize_isobath_terrain(): Summarize terrain by isobath corridor

Summarize raster values by zones, depth bands, and points.

summarize_terrain() summarize_terrain_by_zone(): Summarize terrain metrics by polygon zones
summarize_depth_bands(): Summarize terrain by depth bands
extract_terrain_points(): Extract terrain values at points
sample_terrain_cells(): Sample terrain raster cells

Prepare terrain tables for exploratory modeling.

Create hillshade-supported maps, profiles, and summary plots.

plot_bathy() plot_metric() plot_terrain_map() plot_hillshade() plot_sampling_rectangles() plot_transects() plot_metric_stack(): Plot bathymetry and terrain rasters
plot_cross_sections(): Plot sampled cross-sections
plot_depth_profile(): Plot a depth profile
plot_isobath_corridors(): Plot isobath corridors
plot_process_density(): Plot process density
plot_process_pca(): Plot terrain PCA
plot_terrain_summary(): Plot terrain summaries