{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,7]],"date-time":"2026-07-07T01:54:52Z","timestamp":1783389292228,"version":"3.54.6"},"reference-count":25,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2025,9,15]],"date-time":"2025-09-15T00:00:00Z","timestamp":1757894400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Ministry of Interior of the Czech Republic","award":["VI20172020088"],"award-info":[{"award-number":["VI20172020088"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJGI"],"abstract":"<jats:p>Dividing large areas into smaller sub-areas is a common practice across many disciplines, with specific requirements determined by their intended use. This study focuses on preparing search sectors for locating missing persons in non-urban environments. In such settings, search teams must be assigned sufficiently large yet homogeneous sectors that allow visual orientation even without GNSS. While general search strategies differ in their approach to area coverage, rural and wilderness environments pose unique challenges that demand a systematic method to ensure both navigability and efficiency. To address this, we propose a land-use-based approach that incorporates the artificial extension of linear geo-features to subdivide large polygons. The methodology was first applied to regions of the Czech Republic in 2020 and refined with advanced settings in 2023. Introducing the step for subdividing extensive homogeneous polygons significantly improved outcomes, allowing the method to generate search sectors of the desired size for 86% of the territory in 2020 and 91% in 2023. The main limitation lies in the reliance on cartographic data, which may omit fine details critical for field navigation.<\/jats:p>","DOI":"10.3390\/ijgi14090352","type":"journal-article","created":{"date-parts":[[2025,9,15]],"date-time":"2025-09-15T16:27:33Z","timestamp":1757953653000},"page":"352","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Advanced Division of Search Areas for Missing Persons in Non-Urban Environments"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8893-9925","authenticated-orcid":false,"given":"Kate\u0159ina","family":"R\u016f\u017ei\u010dkov\u00e1","sequence":"first","affiliation":[{"name":"Department of Geoinformatics, Faculty of Mining and Geology, VSB\u2014Technical University of Ostrava, 17. listopadu 2172\/15, 708 00 Ostrava, Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4121-2822","authenticated-orcid":false,"given":"Jan","family":"R\u016f\u017ei\u010dka","sequence":"additional","affiliation":[{"name":"Department of Animal Science and Ethology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamycka 129, 165 00 Prague, Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kate\u0159ina","family":"Sk\u0159ejpkov\u00e1","sequence":"additional","affiliation":[{"name":"Department of Military Science Theory, Faculty of Military Leadership, University of Defence Brno, Kounicova 65, 662 10 Brno, Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4894-0600","authenticated-orcid":false,"given":"Helena","family":"Chaloupkov\u00e1","sequence":"additional","affiliation":[{"name":"Department of Animal Science and Ethology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamycka 129, 165 00 Prague, Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ivona","family":"Svobodov\u00e1","sequence":"additional","affiliation":[{"name":"Department of Animal Science and Ethology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamycka 129, 165 00 Prague, Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,9,15]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"612","DOI":"10.1080\/15614263.2024.2330623","article-title":"Classifying missing persons cases: An analysis of police risk assessments using multi-dimensional scaling","volume":"25","author":"Halford","year":"2024","journal-title":"Police Pract. Res."},{"key":"ref_2","unstructured":"Johnson, M.P. (2016). Evaluating the Utility of a Geographic Information Systems-Based Mobility Model in Search and Rescue Operations. [Master\u2019s Thesis, ProQuest Dissertations & Theses, University of Southern California]. Available online: https:\/\/spatial.usc.edu\/wp-content\/uploads\/2016\/08\/Johnson-Mark.pdf."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"166","DOI":"10.1016\/j.wem.2014.02.006","article-title":"Wilderness Search Strategy and Tactics","volume":"25","author":"Phillips","year":"2014","journal-title":"Wilderness Environ. Med."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"53","DOI":"10.1080\/15614263.2024.2361241","article-title":"The urge to search: Cognitive and affective drivers of citizen searches in missing person cases","volume":"26","author":"Lam","year":"2024","journal-title":"Police Pract. Res."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"99","DOI":"10.1016\/j.apgeog.2013.11.001","article-title":"An analysis of probability of area techniques for missing persons in Yosemite National Park","volume":"47","author":"Doherty","year":"2014","journal-title":"Appl. Geogr."},{"key":"ref_6","first-page":"18","article-title":"Teselacja jako metoda badania aktywno\u2019sci rynku mieszkaniowego","volume":"50","author":"Figurska","year":"2018","journal-title":"Biul. Stowarzyszenia Rzeczozn. Majat. Wojew\u00f3dztwa Wielkop."},{"key":"ref_7","unstructured":"Utter, K. (2025, August 28). How to quickly divide a polygon into equal areas in ArcGIS Pro. GeoSpatial Training Services. Available online: https:\/\/geospatialtraining.com\/how-to-quickly-divide-a-polygon-into-equal-areas-in-arcgis-pro\/."},{"key":"ref_8","unstructured":"Strimas-Mackey, M. (2025, August 28). Fishnets and Honeycomb: Square vs. Hexagonal Spatial Grids. Available online: https:\/\/strimas.com\/post\/hexagonal-grids\/."},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Luo, S., Liu, Y., Du, M., Gao, S., Wang, P., and Liu, X. (2021). The Influence of Spatial Grid Division on the Layout Analysis of Urban Functional Areas. ISPRS Int. J. Geo-Inf., 10.","DOI":"10.3390\/ijgi10030189"},{"key":"ref_10","unstructured":"Sekste, A., and Kazakov, E. (2025, August 28). H3 Hexagonal Grid: Why We Use It for Data Analysis and Visualization. Available online: https:\/\/www.kontur.io\/blog\/why-we-use-h3\/."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"85","DOI":"10.1016\/j.jclepro.2019.06.178","article-title":"Optimization of waste management regions using recursive Thiessen polygons","volume":"234","author":"Richter","year":"2019","journal-title":"J. Clean. Prod."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"12562","DOI":"10.1109\/ACCESS.2024.3354709","article-title":"A Comprehensive Survey on Delaunay Triangulation: Applications, Algorithms, and Implementations Over CPUs, GPUs, and FPGAs","volume":"12","author":"Elshakhs","year":"2024","journal-title":"IEEE Access"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"107757","DOI":"10.1016\/j.catena.2023.107757","article-title":"Slope unit-based genetic landform mapping on Tibetan plateau a terrain unit-based framework for large spatial scale landform classification","volume":"236","author":"Lin","year":"2024","journal-title":"Catena"},{"key":"ref_14","unstructured":"Nettleman Land Consultations (2025, August 28). Field Survey Preparation: Benefits of Property Records. Available online: https:\/\/cnettleman.net\/field-survey-preparation-benefits-of-property-records\/."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"772","DOI":"10.1111\/2041-210X.12385","article-title":"The relative value of field survey and remote sensing for biodiversity assessment","volume":"6","author":"Rhodes","year":"2015","journal-title":"Methods Ecol. Evol."},{"key":"ref_16","doi-asserted-by":"crossref","unstructured":"Horak, J., Kukuliac, P., Maresova, P., Orlikova, L., and Kolodziej, O. (2022). Spatial Pattern of the Walkability Index, Walk Score and Walk Score Modification for Elderly. ISPRS Int. J. Geo-Inf., 11.","DOI":"10.3390\/ijgi11050279"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"894","DOI":"10.1111\/aec.13162","article-title":"Detection dogs provide a powerful method for conservation surveys","volume":"47","author":"Bennett","year":"2022","journal-title":"Austral Ecol."},{"key":"ref_18","unstructured":"Dastrup, R.A. (2025, August 28). Introduction to Geographic Information Systems. Chapter Vector Data Models Structures. Pressbooks. Available online: https:\/\/pressbooks.pub\/gist\/chapter\/6-1\/."},{"key":"ref_19","unstructured":"R\u016f\u017ei\u010dka, J. (2025, August 28). Projekt Patrac. Available online: http:\/\/sarops.info\/patrac\/qgis3\/user\/index.html#intro."},{"key":"ref_20","unstructured":"Kone\u010dn\u00e1, L. (2025, August 28). Projekt P\u00e1tra\u010d. Policie \u010cesk\u00e9 Republiky. Available online: https:\/\/www.policie.cz\/clanek\/projekt-patrac.aspx."},{"key":"ref_21","unstructured":"State Administration of Land Survey and Cadastre (2025, August 28). ZABAGED. Available online: https:\/\/geoportal.cuzk.cz\/(S(r2azdkbrudnrxg4z00eb0pgm))\/Default.aspx?head_tab=sekce-02-gp&mode=TextMeta&text=dSady_uvod&menu=20&news=yes."},{"key":"ref_22","unstructured":"State Administration of Land Survey and Cadastre (2025, August 28). ZABAGED Feature Catalogue, Available online: https:\/\/geoportal.cuzk.gov.cz\/Dokumenty\/ZABAGED_katalog\/EN\/intro.html."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"1182","DOI":"10.1090\/S0002-9904-1978-14553-4","article-title":"Isoperimetric inequality","volume":"84","author":"Osserman","year":"1978","journal-title":"Bull. Am. Math. Soc."},{"key":"ref_24","unstructured":"Je\u017eek, P., and Monitor Rojnice i Database Psovod\u016f (2025, August 28). Jak Funguje Aplikace na P\u00e1tr\u00e1n\u00ed po Lidech. Idnes.Cz 2023. Available online: https:\/\/www.idnes.cz\/plzen\/zpravy\/patrac-aplikace-nemecko-cerchov-pohresovani-patrani-hledani.A230602_125915_plzen-zpravy_jzk."},{"key":"ref_25","unstructured":"(2025, August 28). OSM Contributors. OpenStreetMap Main Page. Available online: https:\/\/wiki.openstreetmap.org\/wiki\/Main_Page."}],"container-title":["ISPRS International Journal of Geo-Information"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2220-9964\/14\/9\/352\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,9]],"date-time":"2025-10-09T18:46:02Z","timestamp":1760035562000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2220-9964\/14\/9\/352"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,9,15]]},"references-count":25,"journal-issue":{"issue":"9","published-online":{"date-parts":[[2025,9]]}},"alternative-id":["ijgi14090352"],"URL":"https:\/\/doi.org\/10.3390\/ijgi14090352","relation":{},"ISSN":["2220-9964"],"issn-type":[{"value":"2220-9964","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,9,15]]}}}