{
  "_id": "6a1f0d6ab401979e7341d021",
  "Package": "wmm",
  "Type": "Package",
  "Title": "World Magnetic Model",
  "Version": "1.1.3",
  "Authors@R": "person(\"Will\", \"Frierson\", email = \"will.frierson@gmail.com\",\nrole = c(\"aut\", \"cre\"))",
  "Maintainer": "Will Frierson <will.frierson@gmail.com>",
  "Description": "Calculate magnetic field at a given location and time\naccording to the World Magnetic Model (WMM). Both the main\nfield and secular variation components are returned. This\nfunctionality is useful for physicists and geophysicists who\nneed orthogonal components from WMM. Currently, this package\nsupports annualized time inputs between 2000-01-01 to\n2029-12-31. If desired, users can specify which WMM version to\nuse, e.g., the original WMM2015 release or the recent\nout-of-cycle WMM2015 release. Methods used to implement WMM,\nincluding the Gauss coefficients for each release, are\ndescribed in the following publications: NOAA NCEI Geomagnetic\nModeling Team and British Geological Survey (2024)\n<doi:10.25921/aqfd-sd83>, Chulliat et al (2020)\n<doi:10.25923/ytk1-yx35>, Chulliat et al (2019)\n<doi:10.25921/xhr3-0t19>, Chulliat et al (2015)\n<doi:10.7289/V5TB14V7>, Maus et al (2010)\n<https://www.ngdc.noaa.gov/geomag/WMM/data/WMMReports/WMM2010_Report.pdf>,\nMcLean et al (2004)\n<https://www.ngdc.noaa.gov/geomag/WMM/data/WMMReports/TRWMM_2005.pdf>,\nand Macmillian et al (2000)\n<https://www.ngdc.noaa.gov/geomag/WMM/data/WMMReports/wmm2000.pdf>.",
  "License": "MIT + file LICENSE",
  "Encoding": "UTF-8",
  "RoxygenNote": "7.3.2",
  "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": {
    "Date": "2026-05-17 09:12:38 UTC",
    "User": "root"
  },
  "Author": "Will Frierson [aut, cre]",
  "MD5sum": "39c880a24f19643657b7b68471a73478",
  "_user": "ropensci",
  "_type": "src",
  "_file": "wmm_1.1.3.tar.gz",
  "_fileid": "3510bf2872854adb8c1e5d4401d34605d02da96f16b3ab3628d60e4a355e0ece",
  "_filesize": 120548,
  "_sha256": "3510bf2872854adb8c1e5d4401d34605d02da96f16b3ab3628d60e4a355e0ece",
  "_created": "2026-05-17T09:12:38.000Z",
  "_published": "2026-06-02T17:05:46.807Z",
  "_distro": "noble",
  "_jobs": [
    {
      "job": 79127671242,
      "time": 135,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "ERROR",
      "artifact": "7041131435"
    },
    {
      "job": 79127671118,
      "time": 123,
      "config": "linux-release-x86_64",
      "r": "4.6.0",
      "check": "ERROR",
      "artifact": "7041129813"
    },
    {
      "job": 79127671074,
      "time": 76,
      "config": "macos-oldrel-arm64",
      "r": "4.5.3",
      "check": "ERROR",
      "artifact": "7041124713"
    },
    {
      "job": 79127670779,
      "time": 123,
      "config": "macos-release-arm64",
      "r": "4.6.0",
      "check": "ERROR",
      "artifact": "7041129677"
    },
    {
      "job": 79127670786,
      "time": 153,
      "config": "pkgdown",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7041112195"
    },
    {
      "job": 79127670121,
      "time": 186,
      "config": "source",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7041116035"
    },
    {
      "job": 79127670202,
      "time": 110,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7364594372"
    },
    {
      "job": 79127670740,
      "time": 82,
      "config": "windows-devel",
      "r": "4.7.0",
      "check": "ERROR",
      "artifact": "7041125320"
    },
    {
      "job": 79127671344,
      "time": 79,
      "config": "windows-oldrel",
      "r": "4.5.3",
      "check": "ERROR",
      "artifact": "7041125020"
    },
    {
      "job": 79127671470,
      "time": 80,
      "config": "windows-release",
      "r": "4.6.0",
      "check": "ERROR",
      "artifact": "7041125004"
    }
  ],
  "_buildurl": "https://github.com/r-universe/ropensci/actions/runs/25986718725",
  "_status": "success",
  "_host": "GitHub-Actions",
  "_upstream": "https://github.com/wfrierson/wmm",
  "_commit": {
    "id": "be10b32127718b2084f9574e65eab55c3b38e3da",
    "author": "Will Frierson <will.frierson@gmail.com>",
    "committer": "GitHub <noreply@github.com>",
    "message": "Merge pull request #6 from wfrierson/add_2025_coefficients\n\nAdd 2025 coefficients",
    "time": 1749946904
  },
  "_maintainer": {
    "name": "Will Frierson",
    "email": "will.frierson@gmail.com",
    "login": "wfrierson",
    "description": "",
    "uuid": 45192365
  },
  "_registered": true,
  "_dependencies": [
    {
      "package": "R",
      "version": ">= 4.3",
      "role": "Depends"
    },
    {
      "package": "testthat",
      "version": ">= 3.2.3",
      "role": "Suggests"
    },
    {
      "package": "data.table",
      "version": ">= 1.17.4",
      "role": "Suggests"
    },
    {
      "package": "knitr",
      "version": ">= 1.50",
      "role": "Suggests"
    },
    {
      "package": "rmarkdown",
      "version": ">= 2.29",
      "role": "Suggests"
    },
    {
      "package": "covr",
      "version": ">= 3.6.4",
      "role": "Suggests"
    },
    {
      "package": "devtools",
      "version": ">= 2.4.5",
      "role": "Suggests"
    }
  ],
  "_owner": "wfrierson",
  "_selfowned": true,
  "_usedby": 0,
  "_updates": [
    {
      "week": "2025-24",
      "n": 1
    }
  ],
  "_tags": [],
  "_stars": 7,
  "_contributors": [
    {
      "user": "wfrierson",
      "count": 219,
      "uuid": 45192365
    },
    {
      "user": "r2evans",
      "count": 6,
      "uuid": 5815808
    },
    {
      "user": "maelle",
      "count": 1,
      "uuid": 8360597
    }
  ],
  "_userbio": {
    "uuid": 1200269,
    "type": "organization",
    "name": "rOpenSci",
    "description": "Tools and R Packages for Open Science"
  },
  "_downloads": {
    "count": 195,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/wmm"
  },
  "_devurl": "https://github.com/wfrierson/wmm",
  "_searchresults": 1,
  "_metadata": {
    "review": {
      "id": 522,
      "status": "reviewed",
      "version": "1.1.1",
      "organization": "rOpenSci Software Review",
      "url": "https://github.com/ropensci/software-review/issues/522"
    },
    "ropensci_category": "data-extraction"
  },
  "_rbuild": "4.6.0",
  "_assets": [
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/NEWS.html",
    "extra/NEWS.txt",
    "extra/readme.html",
    "extra/readme.md",
    "extra/wmm.html",
    "manual.pdf"
  ],
  "_homeurl": "https://github.com/wfrierson/wmm",
  "_realowner": "ropensci",
  "_cranurl": true,
  "_releases": [
    {
      "version": "1.0.0",
      "date": "2019-11-22"
    },
    {
      "version": "1.1.0",
      "date": "2021-03-17"
    },
    {
      "version": "1.1.1",
      "date": "2021-09-06"
    }
  ],
  "_exports": [
    "GetMagneticFieldWMM",
    "wmm"
  ],
  "_help": [
    {
      "page": "GetMagneticFieldWMM",
      "title": "Calculate Expected Magnetic Field from WMM",
      "topics": [
        "GetMagneticFieldWMM",
        "wmm"
      ]
    }
  ],
  "_readme": "https://github.com/wfrierson/wmm/raw/main/README.md",
  "_rundeps": [],
  "_vignettes": [
    {
      "source": "wmm-vignette.Rmd",
      "filename": "wmm-vignette.html",
      "title": "Using the wmm package",
      "engine": "knitr::rmarkdown",
      "headings": [
        "Installation",
        "Usage",
        "Citations"
      ],
      "created": "2022-06-14 22:32:28",
      "modified": "2025-06-15 00:21:44",
      "commits": 3
    }
  ],
  "_score": 4.845098040014257,
  "_indexed": true,
  "_nocasepkg": "wmm",
  "_universes": [
    "ropensci",
    "wfrierson"
  ],
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "1.1.3",
      "date": "2026-05-17T09:14:55.000Z",
      "distro": "noble",
      "commit": "be10b32127718b2084f9574e65eab55c3b38e3da",
      "fileid": "9815ccfba8733ff1ba4117d963faae599e5969fd0e235db7be5572f43d799978",
      "status": "failure",
      "check": "ERROR",
      "buildurl": "https://github.com/r-universe/ropensci/actions/runs/25986718725"
    },
    {
      "r": "4.6.0",
      "os": "linux",
      "version": "1.1.3",
      "date": "2026-05-17T09:14:43.000Z",
      "distro": "noble",
      "commit": "be10b32127718b2084f9574e65eab55c3b38e3da",
      "fileid": "c3608b3d5551997b68254c5f532b90e6c94ffb43a7b98e5d01c67d5553d9d0d9",
      "status": "failure",
      "check": "ERROR",
      "buildurl": "https://github.com/r-universe/ropensci/actions/runs/25986718725"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "1.1.3",
      "date": "2026-05-17T09:14:01.000Z",
      "commit": "be10b32127718b2084f9574e65eab55c3b38e3da",
      "fileid": "e44059a8ec180b7e852b5099d62d62ff8917c9ce7493f07420f00958185fd0ae",
      "status": "failure",
      "check": "ERROR",
      "buildurl": "https://github.com/r-universe/ropensci/actions/runs/25986718725"
    },
    {
      "r": "4.6.0",
      "os": "mac",
      "version": "1.1.3",
      "date": "2026-05-17T09:14:41.000Z",
      "commit": "be10b32127718b2084f9574e65eab55c3b38e3da",
      "fileid": "79bfc7b354e675059a302ddf2cbfd3c5f9e3f8bfd8af53128e33b98d9bf41cdf",
      "status": "failure",
      "check": "ERROR",
      "buildurl": "https://github.com/r-universe/ropensci/actions/runs/25986718725"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "1.1.3",
      "date": "2026-05-17T09:13:58.000Z",
      "commit": "be10b32127718b2084f9574e65eab55c3b38e3da",
      "fileid": "2a4d30c5714be7aab1d589249481723452416c759c95c7401997fe6d823b78aa",
      "status": "failure",
      "check": "ERROR",
      "buildurl": "https://github.com/r-universe/ropensci/actions/runs/25986718725"
    },
    {
      "r": "4.5.3",
      "os": "win",
      "version": "1.1.3",
      "date": "2026-05-17T09:13:55.000Z",
      "commit": "be10b32127718b2084f9574e65eab55c3b38e3da",
      "fileid": "1a33e620cfc3d1a61c20165908b5f4f8c065081456f371ea2b792a9953ef8355",
      "status": "failure",
      "check": "ERROR",
      "buildurl": "https://github.com/r-universe/ropensci/actions/runs/25986718725"
    },
    {
      "r": "4.6.0",
      "os": "win",
      "version": "1.1.3",
      "date": "2026-05-17T09:13:55.000Z",
      "commit": "be10b32127718b2084f9574e65eab55c3b38e3da",
      "fileid": "cdff6623fce735692666064f78feab3c87d3d82b2db1e8fa2f71badbe5781fde",
      "status": "failure",
      "check": "ERROR",
      "buildurl": "https://github.com/r-universe/ropensci/actions/runs/25986718725"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "1.1.3",
      "date": "2026-06-02T17:05:15.000Z",
      "commit": "be10b32127718b2084f9574e65eab55c3b38e3da",
      "fileid": "1b547c9ef9f89efcb033b6a30c35b1655d223ddb35c7b2906c56dc9779062e1c",
      "status": "success",
      "buildurl": "https://github.com/r-universe/ropensci/actions/runs/25986718725"
    }
  ]
}