{"id":"https://openalex.org/W124737","doi":null,"title":"The Construction of Edmond Halley's 1701 Map of Magnetic Declination","display_name":"The Construction of Edmond Halley's 1701 Map of Magnetic Declination","publication_year":2012,"publication_date":"2012-01-01","ids":{"openalex":"https://openalex.org/W124737","mag":"124737"},"language":"en","primary_location":{"id":"pmh:oai:ir.lib.uwo.ca:etd-1901","doi":null,"is_oa":true,"landing_page_url":"https://ir.lib.uwo.ca/etd/654","pdf_url":"https://ir.lib.uwo.ca/etd/654","source":{"id":"https://openalex.org/S4306400648","display_name":"Scholarship@Western (Western University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I125749732","host_organization_name":"Western University","host_organization_lineage":["https://openalex.org/I125749732"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Electronic Thesis and Dissertation Repository","raw_type":"text"},"volume":null,"type":"article","is_traditional":true,"indexed_in":[],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://ir.lib.uwo.ca/etd/654","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5064751513","display_name":"Lori L. Murray","orcid":"https://orcid.org/0000-0001-6865-8931","observed_orcids":["https://orcid.org/0000-0001-6865-8931"]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Lori L. Murray","raw_affiliation_strings":[],"raw_orcid":"https://orcid.org/0000-0001-6865-8931","affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5064751513"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":1,"citation_normalized_percentile":{"value":9.955e-05,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":93},"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13854","display_name":"Historical Geography and Cartography","score":0.7621999979019165,"subfield":{"id":"https://openalex.org/subfields/3305","display_name":"Geography, Planning and Development"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T13854","display_name":"Historical Geography and Cartography","score":0.7621999979019165,"subfield":{"id":"https://openalex.org/subfields/3305","display_name":"Geography, Planning and Development"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T12836","display_name":"History and Developments in Astronomy","score":0.14920000731945038,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12471","display_name":"History of Science and Natural History","score":0.02539999969303608,"subfield":{"id":"https://openalex.org/subfields/1207","display_name":"History and Philosophy of Science"},"field":{"id":"https://openalex.org/fields/12","display_name":"Arts and Humanities"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/edmond-halley","display_name":"Edmond Halley","score":0.9909999966621399},{"id":"https://openalex.org/keywords/magnetic-declination","display_name":"magnetic declination","score":0.9129999876022339},{"id":"https://openalex.org/keywords/history-of-cartography","display_name":"history of cartography","score":0.6790000200271606},{"id":"https://openalex.org/keywords/magnetic-field-maps","display_name":"magnetic maps","score":0.4320000112056732},{"id":"https://openalex.org/keywords/history-of-astronomy","display_name":"history of astronomy","score":0.5440000295639038},{"id":"https://openalex.org/keywords/navigation-history","display_name":"history of navigation","score":0.5889999866485596}],"concepts":[{"id":"https://openalex.org/C124200008","wikidata":"https://www.wikidata.org/wiki/Q76287","display_name":"Declination","level":2,"score":0.6118515729904175},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.40919867157936096},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.1724972426891327},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.1556476354598999}],"mesh":[],"locations_count":3,"locations":[{"id":"pmh:oai:ir.lib.uwo.ca:etd-1901","doi":null,"is_oa":true,"landing_page_url":"https://ir.lib.uwo.ca/etd/654","pdf_url":"https://ir.lib.uwo.ca/etd/654","source":{"id":"https://openalex.org/S4306400648","display_name":"Scholarship@Western (Western University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I125749732","host_organization_name":"Western University","host_organization_lineage":["https://openalex.org/I125749732"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Electronic Thesis and Dissertation Repository","raw_type":"text"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.828.6453","doi":null,"is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.828.6453","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://ir.lib.uwo.ca/cgi/viewcontent.cgi?article%3D1901%26context%3Detd","raw_type":"text"},{"id":"mag:124737","doi":null,"is_oa":false,"landing_page_url":"https://ir.lib.uwo.ca/cgi/viewcontent.cgi?article=1901&context=etd","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null}],"best_oa_location":{"id":"pmh:oai:ir.lib.uwo.ca:etd-1901","doi":null,"is_oa":true,"landing_page_url":"https://ir.lib.uwo.ca/etd/654","pdf_url":"https://ir.lib.uwo.ca/etd/654","source":{"id":"https://openalex.org/S4306400648","display_name":"Scholarship@Western (Western University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I125749732","host_organization_name":"Western University","host_organization_lineage":["https://openalex.org/I125749732"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Electronic Thesis and Dissertation Repository","raw_type":"text"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W124737.pdf","grobid_xml":"https://content.openalex.org/works/W124737.grobid-xml"},"referenced_works_count":5,"referenced_works":["https://openalex.org/W1900844198","https://openalex.org/W1987288336","https://openalex.org/W2001972556","https://openalex.org/W2020534096","https://openalex.org/W2095077410"],"related_works":["https://openalex.org/W2621131496","https://openalex.org/W2048810378","https://openalex.org/W4240304441","https://openalex.org/W2314933574","https://openalex.org/W2047292697","https://openalex.org/W4241127371","https://openalex.org/W2197852459","https://openalex.org/W7002089223","https://openalex.org/W2808177519","https://openalex.org/W1513305480"],"abstract_inverted_index":{"Using":[0,95],"the":[1,15,38,53,77,120],"navigational":[2],"instruments":[3],"of":[4,14,29,70,99],"his":[5,85,100],"time,":[6],"Edmond":[7],"Halley":[8,73],"collected":[9],"data":[10,78],"during":[11],"sea":[12],"voyages":[13],"HMS":[16],"Paramore.":[17],"Following":[18],"these":[19],"voyages,":[20],"in":[21,84],"1701":[22],"he":[23,82],"published":[24],"a":[25,112,116],"map":[26,57,86],"showing":[27],"lines":[28],"equal":[30],"magnetic":[31,42],"declination.":[32],"Magnetic":[33],"declination":[34],"or":[35,46],"variation":[36],"is":[37,123],"angular":[39],"difference":[40,108],"between":[41],"north":[43,48],"and":[44,67,88,105],"geographical":[45],"true":[47],"for":[49,119],"any":[50],"point":[51],"on":[52],"earth\u2019s":[54],"surface.":[55],"The":[56],"has":[58],"been":[59],"held":[60],"up":[61],"by":[62],"many":[63],"as":[64],"an":[65],"early,":[66],"good,":[68],"example":[69],"statistical":[71],"graphics.":[72],"did":[74],"not":[75],"reveal":[76],"analytic":[79],"techniques":[80],"that":[81],"used":[83],"construction":[87,122],"they":[89],"remain":[90],"unknown":[91],"to":[92,110,114],"this":[93],"day.":[94],"some":[96],"mathematical":[97],"tools":[98],"day,":[101],"namely":[102],"arithmetical":[103],"averages":[104],"Newton\u2019s":[106],"divided":[107],"method":[109,118],"fit":[111],"line":[113],"data,":[115],"plausible":[117],"map\u2019s":[121],"given.":[124]},"counts_by_year":[{"year":2024,"cited_by_count":1}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}