Package: potentiomap
Title: Build Potentiometric Surfaces and Hydraulic-Gradient Arrows
Version: 0.2.0
Date: 2026-07-17
Authors@R: 
    person("Elvin", "Cordero", email = "elvin.cordero@seamountgeo.com",
           role = c("aut", "cre"),
           comment = c(ORCID = "0009-0003-8025-283X"))
Description: Prepares groundwater-level observations from measured hydraulic
    head or from depth-to-water and land-surface elevation, interpolates
    potentiometric surfaces using thin-plate splines, inverse-distance
    weighting, ordinary Kriging, universal Kriging, or user-supplied methods,
    and creates raster, contour, diagnostic, support, and hydraulic-gradient
    products for review and export. Functions retain method conditions and fit
    diagnostics, validate explicit prediction tasks, inspect model-conditional
    uncertainty and monitoring-network sensitivity, identify limited prediction
    support, and check whether scaled hydraulic-gradient arrows remain within
    finite raster support and end at lower modeled head. Raster processing uses methods from
    'terra' (Hijmans 2025) <doi:10.32614/CRAN.package.terra>, thin-plate
    splines use methods from 'fields' (Nychka et al. 2021)
    <doi:10.5065/D6W957CT>, and geostatistical interpolation uses methods from
    'gstat' (Pebesma 2004) <doi:10.1016/j.cageo.2004.03.012>.
License: GPL-3
URL: https://el-cordero.github.io/potentiomap/,
        https://github.com/el-cordero/potentiomap
BugReports: https://github.com/el-cordero/potentiomap/issues
Encoding: UTF-8
Language: en-US
LazyData: true
RoxygenNote: 7.3.3
Depends: R (>= 4.1)
Imports: fields, grDevices, graphics, gstat, sf, stats, terra, xml2
Suggests: knitr, rmarkdown, testthat (>= 3.0.0), withr
VignetteBuilder: knitr
Config/testthat/edition: 3
Config/Needs/website: pkgdown
Config/Needs/coverage: covr
NeedsCompilation: no
Packaged: 2026-07-18 00:56:57 UTC; ec
Author: Elvin Cordero [aut, cre] (ORCID:
    <https://orcid.org/0009-0003-8025-283X>)
Maintainer: Elvin Cordero <elvin.cordero@seamountgeo.com>
Repository: CRAN
Date/Publication: 2026-07-18 02:50:02 UTC
Built: R 4.7.0; ; 2026-08-18 03:41:38 UTC; windows
