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CRAN: Package bluertopo

bluertopo: Download and Extract BlueTopo Bathymetry with Terra

Discovers, downloads, verifies, and opens bathymetry assets from the National Oceanic and Atmospheric Administration (NOAA) BlueTopo product for user supplied areas of interest. The package keeps source files intact by default, uses 'terra' for spatial data access, supports explicit native-resolution selection policies, and records provenance for reproducible extraction workflows. It accesses the NOAA BlueTopo web service at <https://noaa-ocs-nationalbathymetry-pds.s3.amazonaws.com/> and references product documentation at <https://nauticalcharts.noaa.gov/data/bluetopo.html>.

Version: 0.0.1
Depends: R (≥ 4.1), terra
Imports: cli, curl, digest, jsonlite, stats, tools, utils, xml2
Suggests: knitr, lintr, pkgdown, pkgload, rmarkdown, roxygen2, sf, styler, testthat (≥ 3.0.0), urlchecker, withr
Published: 2026-08-04
DOI: 10.32614/CRAN.package.bluertopo
Author: Elvin Cordero [aut, cre, cph]
Maintainer: Elvin Cordero <elvin.cordero at seamountgeo.com>
BugReports: https://github.com/el-cordero/bluer-topo/issues
License: MIT + file LICENSE
URL: https://el-cordero.github.io/bluer-topo/, https://github.com/el-cordero/bluer-topo
NeedsCompilation: no
Citation: bluertopo citation info
Materials: README, NEWS
CRAN checks: bluertopo results [issues need fixing before 2026-08-27]

Documentation:

Reference manual: bluertopo.html , bluertopo.pdf
Vignettes: Downloads, cache, and reproducibility (source, R code)
Discover tiles and coverage (source, R code)
Download original assets (source, R code)
Extract elevation with terra (source, R code)
Layers and RAT metadata (source, R code)
Mixed grids and output grid (source, R code)
Compare resolution policies (source, R code)
Example gallery (source, R code)
Get BlueTopo (source, R code)
Layers, contributor values, and RAT metadata (source, R code)
Mixed UTM zones and terra collections (source, R code)
Resolution policies (source, R code)

Downloads:

Package source: bluertopo_0.0.1.tar.gz
Windows binaries: r-devel: bluertopo_0.0.1.zip, r-release: bluertopo_0.0.1.zip, r-oldrel: bluertopo_0.0.1.zip
macOS binaries: r-release (arm64): bluertopo_0.0.1.tgz, r-oldrel (arm64): bluertopo_0.0.1.tgz, r-release (x86_64): bluertopo_0.0.1.tgz, r-oldrel (x86_64): bluertopo_0.0.1.tgz

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