{"id":"https://openalex.org/W2055855239","doi":"https://doi.org/10.13031/2013.13716","title":"An On-The-Go Spectral Reflectance Sensor for Soil","display_name":"An On-The-Go Spectral Reflectance Sensor for Soil","publication_year":2003,"publication_date":"2003-01-01","ids":{"openalex":"https://openalex.org/W2055855239","doi":"https://doi.org/10.13031/2013.13716","mag":"2055855239"},"language":"en","primary_location":{"id":"doi:10.13031/2013.13716","doi":"https://doi.org/10.13031/2013.13716","is_oa":false,"landing_page_url":"https://doi.org/10.13031/2013.13716","pdf_url":null,"source":{"id":"https://openalex.org/S4306497606","display_name":"2003, Las Vegas, NV July 27-30, 2003","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2003, Las Vegas, NV July 27-30, 2003","raw_type":"proceedings-article"},"volume":null,"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5090831802","display_name":"Colin Christy","orcid":"https://orcid.org/0009-0001-7867-1272","observed_orcids":["https://orcid.org/0009-0001-7867-1272"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Colin D. Christy","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016742914","display_name":"P. E. Drummond","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Paul Drummond","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5043034061","display_name":"David A. Laird","orcid":"https://orcid.org/0000-0003-0808-1135","observed_orcids":["https://orcid.org/0000-0003-0808-1135"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"David A. Laird","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":12.7568,"has_fulltext":false,"cited_by_count":38,"citation_normalized_percentile":{"value":0.98726115,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":97},"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/T10640","display_name":"Spectroscopy and Chemometric Analyses","score":0.801800012588501,"subfield":{"id":"https://openalex.org/subfields/1602","display_name":"Analytical Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10640","display_name":"Spectroscopy and Chemometric Analyses","score":0.801800012588501,"subfield":{"id":"https://openalex.org/subfields/1602","display_name":"Analytical Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10770","display_name":"Soil Geostatistics and Mapping","score":0.18379999697208405,"subfield":{"id":"https://openalex.org/subfields/2305","display_name":"Environmental Engineering"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10111","display_name":"Remote Sensing in Agriculture","score":0.006399999838322401,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/near-infrared-spectroscopy","display_name":"near-infrared spectroscopy","score":0.8659999966621399},{"id":"https://openalex.org/keywords/soil-reflectance","display_name":"soil reflectance","score":0.7279999852180481},{"id":"https://openalex.org/keywords/soil-organic-carbon","display_name":"soil organic carbon","score":0.7310000061988831},{"id":"https://openalex.org/keywords/soil-nitrogen","display_name":"soil nitrogen","score":0.9850000143051147},{"id":"https://openalex.org/keywords/soil-moisture","display_name":"soil moisture","score":0.9980000257492065},{"id":"https://openalex.org/keywords/soil-ph","display_name":"soil pH","score":0.9990000128746033},{"id":"https://openalex.org/keywords/calibration-models","display_name":"calibration models","score":0.746999979019165},{"id":"https://openalex.org/keywords/in-situ-measurement","display_name":"in situ measurement","score":0.5360000133514404}],"concepts":[{"id":"https://openalex.org/C154020017","wikidata":"https://www.wikidata.org/wiki/Q520171","display_name":"Repeatability","level":2,"score":0.7649194002151489},{"id":"https://openalex.org/C27438332","wikidata":"https://www.wikidata.org/wiki/Q2873","display_name":"Principal component analysis","level":2,"score":0.7046825289726257},{"id":"https://openalex.org/C108597893","wikidata":"https://www.wikidata.org/wiki/Q663650","display_name":"Reflectivity","level":2,"score":0.6295468807220459},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.5990985631942749},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.5851759314537048},{"id":"https://openalex.org/C156328458","wikidata":"https://www.wikidata.org/wiki/Q5275423","display_name":"Diffuse reflectance infrared fourier transform","level":4,"score":0.5390801429748535},{"id":"https://openalex.org/C165838908","wikidata":"https://www.wikidata.org/wiki/Q736777","display_name":"Calibration","level":2,"score":0.5175308585166931},{"id":"https://openalex.org/C9652623","wikidata":"https://www.wikidata.org/wiki/Q190109","display_name":"Field (mathematics)","level":2,"score":0.4905239939689636},{"id":"https://openalex.org/C140779682","wikidata":"https://www.wikidata.org/wiki/Q210868","display_name":"Sampling (signal processing)","level":3,"score":0.47594523429870605},{"id":"https://openalex.org/C43571822","wikidata":"https://www.wikidata.org/wiki/Q599037","display_name":"Near-infrared spectroscopy","level":2,"score":0.4527062773704529},{"id":"https://openalex.org/C176864760","wikidata":"https://www.wikidata.org/wiki/Q217651","display_name":"Moisture","level":2,"score":0.43126627802848816},{"id":"https://openalex.org/C39464130","wikidata":"https://www.wikidata.org/wiki/Q7554898","display_name":"Soil carbon","level":3,"score":0.41764023900032043},{"id":"https://openalex.org/C159390177","wikidata":"https://www.wikidata.org/wiki/Q9161265","display_name":"Soil science","level":1,"score":0.40001189708709717},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3012624979019165},{"id":"https://openalex.org/C159750122","wikidata":"https://www.wikidata.org/wiki/Q96621023","display_name":"Soil water","level":2,"score":0.2788921594619751},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.18674424290657043},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1824219822883606},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.1747102439403534},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.1681337058544159},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.1301630437374115},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.1251128613948822},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.12010914087295532},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.11987105011940002},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.09602463245391846},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0},{"id":"https://openalex.org/C161790260","wikidata":"https://www.wikidata.org/wiki/Q82264","display_name":"Catalysis","level":2,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C65165184","wikidata":"https://www.wikidata.org/wiki/Q218831","display_name":"Photocatalysis","level":3,"score":0.0},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.0},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.13031/2013.13716","doi":"https://doi.org/10.13031/2013.13716","is_oa":false,"landing_page_url":"https://doi.org/10.13031/2013.13716","pdf_url":null,"source":{"id":"https://openalex.org/S4306497606","display_name":"2003, Las Vegas, NV July 27-30, 2003","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2003, Las Vegas, NV July 27-30, 2003","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2062926131","https://openalex.org/W1985462743","https://openalex.org/W2163027738","https://openalex.org/W2111408234","https://openalex.org/W1970016156","https://openalex.org/W7132624920","https://openalex.org/W2797864790","https://openalex.org/W1998053851","https://openalex.org/W1105238","https://openalex.org/W1997287413"],"abstract_inverted_index":{"Laboratory":[0],"based":[1],"near":[2],"infrared":[3],"spectroscopy":[4],"(NIRS)":[5],"has":[6],"demonstrated":[7],"good":[8,47],"predictivecapability":[9],"for":[10,84],"many":[11],"important":[12],"soil":[13,70],"constituents.":[14],"Less":[15],"is":[16],"known":[17],"about":[18],"the":[19,64],"feasibility":[20],"of":[21,34,38,69],"performing":[22],"thespectroscopic":[23],"measurements":[24],"in":[25,87],"a":[26,39,85],"field":[27,86],"setting.":[28],"This":[29],"paper":[30],"presents":[31],"some":[32],"results":[33,45],"an":[35],"initial":[36],"fieldtest":[37],"mobilized":[40],"in-situ":[41],"NIRS":[42],"device.":[43],"The":[44,76],"demonstrate":[46],"pass-to-pass":[48],"repeatability":[49],"andmeaningful":[50],"qualitative":[51],"images.":[52],"Locally":[53],"weighted":[54],"principal":[55],"component":[56],"regression":[57],"was":[58],"used":[59,79],"todevelop":[60],"calibration":[61],"models":[62],"relating":[63],"reflectance":[65],"data":[66],"to":[67,80,91],"levels":[68],"organic":[71],"carbon,":[72],"nitrogen,moisture":[73],"and":[74,97],"pH.":[75],"calibrations":[77],"were":[78],"create":[81],"constituent":[82],"maps":[83],"central":[88],"Iowaand":[89],"compared":[90],"images":[92],"derived":[93],"from":[94],"intensive":[95],"sampling":[96],"laboratory":[98],"analysis.":[99]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":3},{"year":2016,"cited_by_count":2},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":1}],"updated_date":"2026-10-16T09:59:22.235173","created_date":"2016-06-24T00:00:00"}
