{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,20]],"date-time":"2026-01-20T06:15:45Z","timestamp":1768889745834,"version":"3.49.0"},"reference-count":46,"publisher":"MDPI AG","issue":"19","license":[{"start":{"date-parts":[[2022,9,30]],"date-time":"2022-09-30T00:00:00Z","timestamp":1664496000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100000780","name":"European Commission (Eurostat)","doi-asserted-by":"publisher","award":["PN5C\/03\/2020\/E4"],"award-info":[{"award-number":["PN5C\/03\/2020\/E4"]}],"id":[{"id":"10.13039\/501100000780","id-type":"DOI","asserted-by":"publisher"}]},{"name":"EFTAS Fernerkundung Technologietransfer GmbH","award":["PN5C\/03\/2020\/E4"],"award-info":[{"award-number":["PN5C\/03\/2020\/E4"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Land cover area estimates can be derived via design-based approaches using a probability (random) reference sample. The collection of samples is usually costly and requires an effective sampling design. Earth-Observation-based mapping approaches do not have this requirement but can be biased in providing area estimates. Combining reference samples with remote sensing products can reduce sampling efforts and provide a more effective method to estimate land cover. The Copernicus High-Resolution Layer (HRL) provides remote-sensing-based data across Europe to support area estimation. Different methods are tested to estimate areas of imperviousness in four selected countries in Europe to demonstrate the use and shortcomings of existing reference information from the LUCAS survey program and the HRL Imperviousness products from 2015 and 2018.<\/jats:p>","DOI":"10.3390\/rs14194903","type":"journal-article","created":{"date-parts":[[2022,10,10]],"date-time":"2022-10-10T03:07:28Z","timestamp":1665371248000},"page":"4903","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Unbiased Area Estimation Using Copernicus High Resolution Layers and Reference Data"],"prefix":"10.3390","volume":"14","author":[{"given":"Luca","family":"Kleinewillingh\u00f6fer","sequence":"first","affiliation":[{"name":"EFTAS Fernerkundung Technologietransfer GmbH, Oststra\u00dfe 2, 48145 M\u00fcnster, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pontus","family":"Olofsson","sequence":"additional","affiliation":[{"name":"Department of Earth and Environment, Boston University Arts & Sciences, 685 Commonwealth Avenue, Boston, MA 02215, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8049-7069","authenticated-orcid":false,"given":"Edzer","family":"Pebesma","sequence":"additional","affiliation":[{"name":"Institute for Geoinformatics, Westf\u00e4lische Wilhelms-Universit\u00e4t M\u00fcnster, Heisenbergstrasse 2, 48149 M\u00fcnster, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hanna","family":"Meyer","sequence":"additional","affiliation":[{"name":"Institute of Landscape Ecology, Westf\u00e4lische Wilhelms-Universit\u00e4t M\u00fcnster, Heisenbergstrasse 2, 48149 M\u00fcnster, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Oliver","family":"Buck","sequence":"additional","affiliation":[{"name":"EFTAS Fernerkundung Technologietransfer GmbH, Oststra\u00dfe 2, 48145 M\u00fcnster, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Carsten","family":"Haub","sequence":"additional","affiliation":[{"name":"EFTAS Fernerkundung Technologietransfer GmbH, Oststra\u00dfe 2, 48145 M\u00fcnster, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Beatrice","family":"Eiselt","sequence":"additional","affiliation":[{"name":"European Commission, Eurostat, Rue Alphonse Weicker 5 L, 2721 Kirchberg, Luxembourg"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,9,30]]},"reference":[{"key":"ref_1","unstructured":"GFOI (2020). 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