{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,24]],"date-time":"2026-02-24T18:30:29Z","timestamp":1771957829893,"version":"3.50.1"},"reference-count":53,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2016,11,30]],"date-time":"2016-11-30T00:00:00Z","timestamp":1480464000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Portuguese State Budget through the Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","award":["UID\/SOC\/04647\/2013"],"award-info":[{"award-number":["UID\/SOC\/04647\/2013"]}]},{"name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","award":["SFRH\/BPD\/76893\/2011"],"award-info":[{"award-number":["SFRH\/BPD\/76893\/2011"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sustainability"],"abstract":"<jats:p>Information about green spaces available in a city is essential for urban planning. Urban green areas are generally assessed through environmental indicators that reflect the city\u2019s quality of life and urban comfort. A methodology based on 3D measure and analysis of green urban areas at the city scale is presented. Two products are proposed: (1) measuring current vegetation cover at ground level through object-oriented classification of WorldView-2 imagery; and (2) estimating potential green cover at rooftop level using 3D data obtained by LiDAR sensor. The methodology, implemented in Lisbon, Portugal, demonstrates that: (1) remote sensing imagery provides powerful tools for master planning and policy analysis regarding green urban area expansion; and (2) measures of urban sustainability cannot be solely based on indicators obtained from 2D geographical information. In fact, 2D urban indicators should be complemented by 3D modelling of geographic data.<\/jats:p>","DOI":"10.3390\/su8121247","type":"journal-article","created":{"date-parts":[[2016,11,30]],"date-time":"2016-11-30T10:10:36Z","timestamp":1480500636000},"page":"1247","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":59,"title":["Quantifying the City\u2019s Green Area Potential Gain Using Remote Sensing Data"],"prefix":"10.3390","volume":"8","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7061-7346","authenticated-orcid":false,"given":"Teresa","family":"Santos","sequence":"first","affiliation":[{"name":"Interdisciplinary Centre of Social Sciences (CICS.NOVA), Faculty of Social Sciences and Humanities, (FCSH\/NOVA), Av. de Berna, 26 C, 1069-061 Lisboa, Portugal"}]},{"given":"Jos\u00e9","family":"Tened\u00f3rio","sequence":"additional","affiliation":[{"name":"Interdisciplinary Centre of Social Sciences (CICS.NOVA), Faculty of Social Sciences and Humanities, (FCSH\/NOVA), Av. de Berna, 26 C, 1069-061 Lisboa, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9212-4649","authenticated-orcid":false,"given":"Jos\u00e9","family":"Gon\u00e7alves","sequence":"additional","affiliation":[{"name":"CIIMAR Interdisciplinary Centre for Marine and Environmental Research, Av. 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Urban Plan."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"129","DOI":"10.1016\/j.landurbplan.2003.08.003","article-title":"The Role of Urban Parks for the Sustainable City","volume":"68","author":"Chiesura","year":"2004","journal-title":"Landsc. Urban Plan."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"480","DOI":"10.1016\/j.buildenv.2006.10.055","article-title":"Temperature Decreases in an Urban Canyon due to Green Walls and Green Roofs in Diverse Climates","volume":"43","author":"Alexandri","year":"2008","journal-title":"Build. Environ."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"127","DOI":"10.1016\/j.landurbplan.2014.10.018","article-title":"Planning for Cooler Cities: A Framework to Prioritise Green Infrastructure to Mitigate High Temperatures in Urban Landscapes","volume":"134","author":"Norton","year":"2015","journal-title":"Landsc. Urban Plan."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"247","DOI":"10.1016\/j.ecolind.2014.10.016","article-title":"Carbon Sequestration Potential of Green Roofs Using Mixed-Sewage-Sludge Substrate in Chengdu World Modern Garden City","volume":"49","author":"Luo","year":"2015","journal-title":"Ecol. Indic."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"554","DOI":"10.1016\/j.ufug.2015.05.006","article-title":"Economic Evaluation of Green-Roof Environmental Benefits in the Context of Climate Change: The Case of Hong Kong","volume":"14","author":"Peng","year":"2015","journal-title":"Urban For. Urban Green."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"682","DOI":"10.1016\/j.solener.2012.07.003","article-title":"Cooling the Citie\u2014A Review of Reflective and Green Roof Mitigation Technologies to Fight Heat Island and Improve Comfort in Urban Environments","volume":"103","author":"Santamouris","year":"2014","journal-title":"Sol. Energy"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"28","DOI":"10.1016\/j.ufug.2012.05.004","article-title":"Rooftop Temperature Reduction from Unirrigated Modular Green Roofs in South-Central Texas","volume":"12","author":"Dvorak","year":"2013","journal-title":"Urban For. Urban Green."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"165","DOI":"10.1016\/j.landurbplan.2014.11.022","article-title":"Functional Diversity as a Framework for Novel Ecosystem Design: The Example of Extensive Green Roofs","volume":"136","author":"Dutoit","year":"2015","journal-title":"Landsc. Urban Plan."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"151","DOI":"10.1016\/j.landurbplan.2014.01.004","article-title":"Wildflower Green Roofs for Urban Landscaping, Ecological Sustainability and Biodiversity","volume":"124","author":"Benvenuti","year":"2014","journal-title":"Landsc. Urban Plan."},{"key":"ref_12","first-page":"204","article-title":"The impact of intelligent building technologies on the urban environment","volume":"Volume 8581","author":"Selicato","year":"2014","journal-title":"Computational Science and Its Applications\u2014ICCSA 2014"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"2100","DOI":"10.1016\/j.envpol.2010.10.029","article-title":"Green Roofs as a Means of Pollution Abatement","volume":"159","author":"Rowe","year":"2011","journal-title":"Environ. Pollut."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"102","DOI":"10.1016\/j.landurbplan.2011.07.004","article-title":"A Comparison of Bee Communities of Chicago Green Roofs, Parks and Prairies","volume":"103","author":"Tonietto","year":"2011","journal-title":"Landsc. Urban Plan."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"411","DOI":"10.1016\/j.apenergy.2013.10.047","article-title":"State-of-the-Art Analysis of the Environmental Benefits of Green Roofs","volume":"115","author":"Berardi","year":"2014","journal-title":"Appl. Energy"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"157","DOI":"10.1016\/j.renene.2011.12.004","article-title":"A Comprehensive Study of the Impact of Green Roofs on Building Energy Performance","volume":"43","author":"Jaffal","year":"2012","journal-title":"Renew. Energy"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"4312","DOI":"10.1021\/es0517522","article-title":"Comparative Life Cycle Assessment of Standard and Green Roofs","volume":"40","author":"Saiz","year":"2006","journal-title":"Environ. Sci. Technol."},{"key":"ref_18","unstructured":"Ansel, W., and Appl, R. An International Review of Current Practices and Future Trends: Green Roof Policies. Available online: http:\/\/www.igra-world.com\/images\/news_and_events\/IGRA-Green-Roof-Policies.pdf."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"151","DOI":"10.1007\/s00267-008-9095-5","article-title":"Establishing Green Roof Infrastructure through Environmental Policy Instruments","volume":"42","author":"Carter","year":"2008","journal-title":"Environ. Manag."},{"key":"ref_20","unstructured":"Ngan, G. Green Roof Policies. Available online: http:\/\/www.coolrooftoolkit.org\/wp-content\/uploads\/2012\/04\/Green-Roof-Policy-report-Goya-Ngan.pdf."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"100","DOI":"10.1016\/j.landurbplan.2013.11.012","article-title":"Green Roofs as Habitats for Wild Plant Species in Urban Landscapes: First Insights from a Large-Scale Sampling","volume":"122","author":"Madre","year":"2014","journal-title":"Landsc. Urban Plan."},{"key":"ref_22","unstructured":"TGRTAG\u2013Toronto Green Roof Technical Advisory Group (2011). Toronto Green Roof Construction Standard (TGRCS), Office of the Chief Building Official, Toronto Building. Available online: http:\/\/www.toronto.ca\/greenroofs\/pdf\/GreenRoof-supGuidelines.pdf."},{"key":"ref_23","unstructured":"PDC\u2013Portland Development Commision Green Building Policy. Program Guidelines. Available online: http:\/\/www.portlandonline.com\/shared\/cfm\/image.cfm?id=112680."},{"key":"ref_24","unstructured":"IGRA\u2013International Green Roof Association Public Benefits. Available online: http:\/\/www.igra-world.com\/benefits\/public_benefits.php."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"98","DOI":"10.1016\/j.ufug.2012.12.003","article-title":"Vegetation Development over Four Years on Two Green Roofs in the UK","volume":"12","author":"Bates","year":"2013","journal-title":"Urban For. Urban Green."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"1429","DOI":"10.1016\/j.jenvman.2011.01.012","article-title":"Urban Reconciliation Ecology: The Potential of Living Roofs and Walls","volume":"92","author":"Francis","year":"2011","journal-title":"J. Environ. Manag."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"760","DOI":"10.1016\/j.ufug.2015.07.009","article-title":"Challenges and Strategies for Urban Green-Space Planning in Cities Undergoing Densification: A Review","volume":"14","author":"Haaland","year":"2015","journal-title":"Urban For. Urban Green."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"548","DOI":"10.1080\/2150704X.2014.933276","article-title":"Development of a Nationwide Approach for Large Scale Estimation of Green Roof Retrofitting Areas and Roof-Top Solar Energy Potential Using VHR Natural Colour Orthoimagery and DSM Data over Thessaloniki, Greece","volume":"5","author":"Mallinis","year":"2014","journal-title":"Remote Sens. Lett."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"25","DOI":"10.1016\/j.habitatint.2012.10.005","article-title":"From the \u2018urban Heat Island\u2019 to the \u2018green Island\u2019? A Preliminary Investigation into the Potential of Retrofitting Green Roofs in Mongkok District of Hong Kong","volume":"39","author":"Wong","year":"2013","journal-title":"Habitat Int."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"299","DOI":"10.1016\/j.landurbplan.2011.02.035","article-title":"Factors Influencing the Spatial Pattern of Sky Gardens in the Compact City of Hong Kong","volume":"101","author":"Tian","year":"2011","journal-title":"Landsc. Urban Plan."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"48","DOI":"10.1016\/j.apgeog.2014.03.008","article-title":"Applications of Solar Mapping in the Urban Environment","volume":"51","author":"Santos","year":"2014","journal-title":"Appl. Geogr."},{"key":"ref_32","unstructured":"European Comission Eurostat-Data Explorer. Available online: http:\/\/appsso.eurostat.ec.europa.eu\/nui\/show.do?dataset=urb_cenv&lang=en."},{"key":"ref_33","unstructured":"European Comission Statistics Illustrated-Eurostat. Available online: http:\/\/ec.europa.eu\/eurostat\/web\/cities."},{"key":"ref_34","unstructured":"Cruz, C.S., and Alves, F.L. A Strategy for Biodiversity, the Lisbon Case. Available online: https:\/\/www.cbd.int\/doc\/nbsap\/sbsap\/pt-sbsap-lisbon-en.pdf."},{"key":"ref_35","unstructured":"Zhang, Y. A New Automatic Approach for Effectively Fusing Landsat 7 as Well as IKONOS Images. Available online: http:\/\/www2.unb.ca\/gge\/Resources\/ImageFusion\/UNB\/zoomview\/Fusion_poster_2002_50_cUNB.pdf."},{"key":"ref_36","first-page":"309","article-title":"Monitoring Vegetation Systems in the Great Plains with ERTS","volume":"1","author":"Rouse","year":"1974","journal-title":"NASA Spec. Publ."},{"key":"ref_37","unstructured":"Santos, T. (2011). Producing Geographical Information for Land Planning Using VHR Data: Local Scale Applications, LAP LAMBERT Academic Publishing."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"105","DOI":"10.1016\/j.landurbplan.2014.09.013","article-title":"A Comparison of the Economic Benefits of Urban Green Spaces Estimated with NDVI and with High-Resolution Land Cover Data","volume":"133","author":"Li","year":"2015","journal-title":"Landsc. Urban Plan."},{"key":"ref_39","unstructured":"Opitz, D., and Blundell, S. (2008). Object-Based Image Analysis, Springer. Available online: http:\/\/link.springer.com\/chapter\/10.1007\/978-3-540-77058-9_8."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"2441","DOI":"10.1016\/j.enconman.2005.11.002","article-title":"A Critical Review on the Estimation of Daily Global Solar Radiation from Sunshine Duration","volume":"47","author":"Yorukoglu","year":"2006","journal-title":"Energy Convers. Manag."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"1529","DOI":"10.1016\/j.enconman.2003.08.022","article-title":"Global Solar Radiation Estimation Using Sunshine Duration in Spain","volume":"45","author":"Almorox","year":"2004","journal-title":"Energy Convers. Manag."},{"key":"ref_42","unstructured":"Maurer, E. Green Roofs in Linz. Available online: http:\/\/www.greenroof.group.shef.ac.uk\/pdf\/edmundmaurer.pdf."},{"key":"ref_43","first-page":"284","article-title":"Green Roof Retrofit Potential in the Central Business District","volume":"27","author":"Wilkinson","year":"2009","journal-title":"Prop. Manag."},{"key":"ref_44","unstructured":"Pedro, I.C.S.M. (2014). O Uso da Dete\u00e7\u00e3o Remota Para a Extra\u00e7\u00e3o de Indicadores Urbanos. (Using Remote Sensing To Extraction Urban Indicators). [Master\u2019s Thesis, Lisbon New University]. (In Portuguese)."},{"key":"ref_45","unstructured":"Overwatch Systems, Ltd. Feature Analyst 5.1.x Reference Guide. Available online: http:\/\/www.vls-inc.com\/login\/downloads\/Install%20Guide%20FA%205_1%20ArcGIS.pdf."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.isprsjprs.2013.12.009","article-title":"Introducing Mapping Standards in the Quality Assessment of Buildings Extracted from Very High Resolution Satellite Imagery","volume":"90","author":"Freire","year":"2014","journal-title":"ISPRS J. Photogramm. Remote Sens."},{"key":"ref_47","unstructured":"Santos, T., Freire, S., Navarro, A., Soares, F., Dinis, J., Afonso, N., Fonseca, A., and Tened\u00f3rio, J.A. Extracting Buildings in the City of Lisbon Using QuickBird Images and LIDAR Data. Available online: http:\/\/www.isprs.org\/proceedings\/XXXVIII\/4-C7\/pdf\/Santos_98.pdf."},{"key":"ref_48","unstructured":"Freire, S., Santos, T., Gomes, N., Fonseca, A., and Tened\u00f3rio, J.A. (2013, January 15\u201319). Extraction of buildings from quickbird imagery\u2014What is the relevance of urban context and heterogeneity?. Proceedings of the Special Joint Symposium of ISPRS Technical Commission IV & AutoCarto in Conjunction with ASPRS\/CaGIS 2010 Fall Specialty Conference, Orlando, FL, USA."},{"key":"ref_49","unstructured":"Herman, R. (2003, January 29\u201330). Green Roofs in Germany: Yesterday, Today and Tomorrow. Proceedings of the Greening Rooftops for Sustainable Communities, Chicago, IL, USA."},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"4534","DOI":"10.3390\/s120404534","article-title":"The Application of LiDAR to Assessment of Rooftop Solar Photovoltaic Deployment Potential in a Municipal District Unit","volume":"12","author":"Nguyen","year":"2012","journal-title":"Sensors"},{"key":"ref_51","unstructured":"European Environment Agency CORINE Land Cover. Available online: http:\/\/www.eea.europa.eu\/publications\/COR0-landcover."},{"key":"ref_52","doi-asserted-by":"crossref","unstructured":"He, C., Convertino, M., Feng, Z., and Zhang, S. (2013). Using LiDAR Data to Measure the 3D Green Biomass of Beijing Urban Forest in China. PLoS ONE, 8.","DOI":"10.1371\/journal.pone.0075920"},{"key":"ref_53","doi-asserted-by":"crossref","unstructured":"Pinto, N., Tened\u00f3rio, J., Antunes, A., and Cladera, J. (2014). Technologies for Urban and Spatial Planning: Virtual Cities and Territories, Information Science Reference.","DOI":"10.4018\/978-1-4666-4349-9"}],"container-title":["Sustainability"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2071-1050\/8\/12\/1247\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T19:27:44Z","timestamp":1760210864000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2071-1050\/8\/12\/1247"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2016,11,30]]},"references-count":53,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2016,12]]}},"alternative-id":["su8121247"],"URL":"https:\/\/doi.org\/10.3390\/su8121247","relation":{},"ISSN":["2071-1050"],"issn-type":[{"value":"2071-1050","type":"electronic"}],"subject":[],"published":{"date-parts":[[2016,11,30]]}}}