Package: wmm
Type: Package
Title: World Magnetic Model
Version: 1.1.3
Authors@R: person("Will", "Frierson", email = "will.frierson@gmail.com",
  role = c("aut", "cre"))
Maintainer: Will Frierson <will.frierson@gmail.com>
Description: Calculate magnetic field at a given location and time
        according to the World Magnetic Model (WMM). Both the main
        field and secular variation components are returned. This
        functionality is useful for physicists and geophysicists who
        need orthogonal components from WMM. Currently, this package
        supports annualized time inputs between 2000-01-01 to
        2029-12-31. If desired, users can specify which WMM version to
        use, e.g., the original WMM2015 release or the recent
        out-of-cycle WMM2015 release. Methods used to implement WMM,
        including the Gauss coefficients for each release, are
        described in the following publications: NOAA NCEI Geomagnetic
        Modeling Team and British Geological Survey (2024)
        <doi:10.25921/aqfd-sd83>, Chulliat et al (2020)
        <doi:10.25923/ytk1-yx35>, Chulliat et al (2019)
        <doi:10.25921/xhr3-0t19>, Chulliat et al (2015)
        <doi:10.7289/V5TB14V7>, Maus et al (2010)
        <https://www.ngdc.noaa.gov/geomag/WMM/data/WMMReports/WMM2010_Report.pdf>,
        McLean et al (2004)
        <https://www.ngdc.noaa.gov/geomag/WMM/data/WMMReports/TRWMM_2005.pdf>,
        and Macmillian et al (2000)
        <https://www.ngdc.noaa.gov/geomag/WMM/data/WMMReports/wmm2000.pdf>.
License: MIT + file LICENSE
Encoding: UTF-8
Depends: R (>= 4.3)
RoxygenNote: 7.3.2
Suggests: testthat (>= 3.2.3), data.table (>= 1.17.4), knitr (>= 1.50),
        rmarkdown (>= 2.29), covr (>= 3.6.4), devtools (>= 2.4.5)
URL: https://github.com/wfrierson/wmm
BugReports: https://github.com/wfrierson/wmm/issues
Language: en-US
VignetteBuilder: knitr
Repository: https://ropensci.r-universe.dev
Date/Publication: 2025-06-15 00:21:44 UTC
RemoteUrl: https://github.com/wfrierson/wmm
RemoteRef: main
RemoteSha: be10b32127718b2084f9574e65eab55c3b38e3da
NeedsCompilation: no
Packaged: 2026-07-01 08:14:23 UTC; root
Author: Will Frierson [aut, cre]