heronvale_covariates: Data: Demonstration covariates for dsmartr

In obrl-soil/dsmartr: dsmartr: An R implementation of the DSMART algorithm

Data: Demonstration covariates for dsmartr

Description

A dataset containing a variety of environmental parameters that may correlate with mapped soil concepts.

Usage

heronvale_covariates

Format

A RasterBrick with dimensions 299, 285, 85215, 13 (nrow, ncol, ncell, nlayers) and resolution of 26.6 m, projected in Albers Equal Area (EPSG:3577). The dataset is clipped to the extent of the Heronvale 1:10000 topographic key map sheet, located on the coast of Northern Queensland between Proserpine and Bowen. Included surfaces are:

DEM_S

GeoScience Australia's 1" SRTM DEM-S product

GM_INT_pattern

'Intensity' output of GRASS add-on module r.geomorphon, calculated from DEM_S in GRASS 7.2 with a search distance of 11 cells, a skip distance of 3 cells, and a flatness threshold of 0.3 degrees. This roughly corresponds to the 'landscape pattern' concept outlined in NCST (2009). 'Intensity' is the mean difference in elevation between a pixel and the eight neighbourhood pixels used to define its geomorphon.

GM_MCF_pattern

'Most common forms' (MCF) output of r.geomorphon, settings as above. MCF is a 10-category set of simple landscape shapes - flat, summit, ridge, shoulder, spur, slope, hollow, footslope, valley, depression.

GM_RNG_pattern

'Range' output of r.geomorphon, settings as above. 'Range' is the difference between the max and min elevations of the cells used to define the geomorphon.

NETD_MRVBF

Multi-Resolution Valley Bottom Flatness Index derived from 1" DEM-S, published by the CSIRO and available from http://doi.org/10.4225/08/5701C885AB4FE

NETD_Prescott

Prescott Index derived from 1" DEM-S, published by the CSIRO and available from http://doi.org/10.4225/08/53EB2D0EAE377

NETD_SLOPE_DG

Slope derived from 1" DEM-S, published by the CSIRO and available from http://doi.org/10.4225/08/5689DA774564A

PCRE_DBVG1M

Pre-clearing dominant broad vegetation groups of Queensland, v3.0. This dataset was rasterised from a polygon source.

RM_F_K

Radiometric Map of Australia v3 - Filtered percent Potassium

RM_F_T

Radiometric Map of Australia v3 - Filtered ppm Thorium

RM_F_U

Radiometric Map of Australia v3 - Filtered ppm Uranium

SAGA_MSPOS

SAGA Mid-slope position, calculated from DEM-S in SAGA 2.3.

SAGA_WI

SAGA Wetness Index, calculated from DEM-H in SAGA 2.3.

All covariates were processed in GRASS 7 to align with the DEM-S, reprojected to EPSG:3577 with appropriate resampling (bilinear for continuous data, nearest-neighbour for categorical).

obrl-soil/dsmartr documentation built on Feb. 1, 2024, 10:57 p.m.