{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,19]],"date-time":"2026-03-19T12:03:57Z","timestamp":1773921837241,"version":"3.50.1"},"reference-count":58,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2017,3,2]],"date-time":"2017-03-02T00:00:00Z","timestamp":1488412800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Special Found of Ministry of Land and Resources of China in the Public Interest","award":["201511001"],"award-info":[{"award-number":["201511001"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJGI"],"abstract":"<jats:p>Ningbo City in Zhejiang Province is one of the largest port cities in China and has achieved high economic development during the past decades. The port construction, land reclamation, urban development and silt deposition in the Ningbo coastal zone have resulted in extensive coastline change. In this study, the spatio-temporal change of the Ningbo coastlines during 1976\u20132015 was detected and analysed using Landsat time-series images from different sensors, including Multispectral Scanner (MSS), Thematic Mapper (TM), Enhanced Thematic Mapper Plus (ETM+) and Operational Land Imager (OLI). Fourteen individual scenes (covering seven phases) of cloud-free Landsat images within the required tidal range of \u00b163 cm were collected. The ZiYuan-3 (ZY-3) image of 2015 was used to extract the reference coastline for the accuracy assessment. The normalised difference water index (NDWI) and the modified normalized difference water index (MNDWI) were applied to discriminate surface water and land features, respectively. The on-screen digitising approach was then used to further refine the extracted time-series coastlines in the period from 1976 to 2015. Six relevant indices, length, length change, annual length change, fractal dimension (FD), average net shoreline movement (NSM) and average annual NSM, were calculated to analyse and explore the spatio-temporal change features of Ningbo coastlines. Results show that the length of the Ningbo coastlines increased from 910 km to 986 km, and the value of FD increased from 1.09 to 1.12, and the coastline morphology changed from sinuous to straight. The average NSM increased from 187 m to 298 m and the average annual NSM reached 85 m\/year, indicating the advance of coastlines towards the sea at a high level. The spatio-temporal change patterns also varied in different areas. In Hangzhou Bay, significant advancement along the coastlines was experienced since 2001 mainly because of urban construction and land reclamation. In Xiangshan Bay, the forces of nature played a major role in coastline dynamics before 2008, whilst port construction, urban construction and island link projections moved the coastlines towards the sea. The coastline changes of Sanmen Bay were affected by the interaction of nature and human activities. All these observations indicate that forces of nature and human activities were the two important influential factors for the observed coastline change. In this case, the coastline complexity variation was considered responsible for various coastline patterns change of the Ningbo coast. In addition, erosion and accretion occurred in turn because of forces of nature and human activities, such as urban development and agricultural exploitation.<\/jats:p>","DOI":"10.3390\/ijgi6030068","type":"journal-article","created":{"date-parts":[[2017,3,2]],"date-time":"2017-03-02T10:31:17Z","timestamp":1488450677000},"page":"68","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":78,"title":["Spatio-Temporal Change Detection of Ningbo Coastline Using Landsat Time-Series Images during 1976\u20132015"],"prefix":"10.3390","volume":"6","author":[{"given":"Xia","family":"Wang","sequence":"first","affiliation":[{"name":"School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China"}]},{"given":"Yaolin","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China"},{"name":"Key Laboratory of Geographic Information System, Ministry of Education, Wuhan University, Wuhan 430079, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0685-4897","authenticated-orcid":false,"given":"Feng","family":"Ling","sequence":"additional","affiliation":[{"name":"Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430077, China"},{"name":"School of Geography, University of Nottingham, University Park, Nottingham NG7 2RD, UK"}]},{"given":"Yanfang","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China"},{"name":"Key Laboratory of Geographic Information System, Ministry of Education, Wuhan University, Wuhan 430079, China"}]},{"given":"Feiguo","family":"Fang","sequence":"additional","affiliation":[{"name":"School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China"}]}],"member":"1968","published-online":{"date-parts":[[2017,3,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"301","DOI":"10.1029\/2002EO000216","article-title":"Improved estimates of coastal population and exposure to hazards released","volume":"83","author":"Nicholls","year":"2002","journal-title":"Eos Trans. Am. Geophys. Union"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"297","DOI":"10.1007\/s10661-007-9929-2","article-title":"Coastal dynamic and shoreline mapping: Multi-sources spatial data analysis in Semarang Indonesia","volume":"142","author":"Marfai","year":"2008","journal-title":"Environ. Monit. Assess."},{"key":"ref_3","first-page":"584","article-title":"A global analysis of human settlement in coastal zones","volume":"19","author":"Small","year":"2003","journal-title":"J. Coast. Res."},{"key":"ref_4","unstructured":"Lin, L., Pan, Z., Kang, X., and Ye, N. (2013, January 26\u201328). The coastline extraction for Fujian province based on long time series of remote sensing image. Proceedings of the 2013 The International Conference on Remote Sensing, Environment and Transportation Engineering, Nanjing, China."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"185","DOI":"10.1016\/j.ocecoaman.2015.06.025","article-title":"Shoreline change, seawalls, and coastal property values","volume":"114","author":"Jin","year":"2015","journal-title":"Ocean Coast. Manag."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"913","DOI":"10.1038\/nclimate1944","article-title":"Coastal habitats shield people and property from sea-level rise and storms","volume":"3","author":"Arkema","year":"2013","journal-title":"Nat. Clim. Chang."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"8299","DOI":"10.1080\/01431161.2010.535045","article-title":"Shoreline changes in west-central Florida between 1987 and 2008 from Landsat observations","volume":"32","author":"Yu","year":"2011","journal-title":"Int. J. Remote Sens."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"196","DOI":"10.1016\/j.rse.2016.03.031","article-title":"Continuous monitoring of coastline dynamics in western Florida with a 30-year time series of Landsat imagery","volume":"179","author":"Li","year":"2016","journal-title":"Remote Sens. Environ."},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Tamassoki, E., Amiri, H., and Soleymani, Z. (2014, January 22\u201323). Monitoring of shoreline changes using remote sensing (case study: Coastal city of Bandar Abbas). Proceedings of the IOP Conference Series: Earth & Environmental Science, Kuala Lumpur, Malaysia.","DOI":"10.1088\/1755-1315\/20\/1\/012023"},{"key":"ref_10","doi-asserted-by":"crossref","unstructured":"Dewi, R.S., Bijker, W., Stein, A., and Marfai, M.A. (2016). Fuzzy classification for shoreline change monitoring in a part of the northern coastal area of java, Indonesia. Remote Sens., 8.","DOI":"10.3390\/rs8030190"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"137","DOI":"10.1016\/j.isprsjprs.2014.12.009","article-title":"Monitoring the coastline change of Hatiya Island in Bangladesh using remote sensing techniques","volume":"101","author":"Ghosh","year":"2015","journal-title":"ISPRS J. Photogramm. Remote Sens."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"3383","DOI":"10.1080\/014311698214055","article-title":"Detection of shoreline changes for tideland areas using multi-temporal satellite images","volume":"19","author":"Chen","year":"1998","journal-title":"Int. J. Remote Sens."},{"key":"ref_13","unstructured":"Di, K., Wang, J., Ma, R., and Li, R. (2003, January 5\u20139). Automatic shoreline extraction from high-resolution IKONOS satellite imagery. Proceedings of the ASPRS 2003 Annual Conference, Anchorage, AK, USA. Available online: https:\/\/www.researchgate.net\/profile\/Kaichang_Di\/publication\/241058589_Automatic_shoreline_extraction_from_high_resolution_IKONOS_satellite_imagery\/links\/004635383f740ac468000000.pdf."},{"key":"ref_14","unstructured":"Puissant, A., Lefevre, S.E.B., and Weber, J. (2008, January 3\u201311). Coastline extraction in VHR imagery using mathematical morphology with spatial and spectral knowledge. Proceedings of the SPRS Congress Beijing 2008, Beijing, China."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"662","DOI":"10.1109\/TGRS.1990.572976","article-title":"Coastline detection and tracing in SAR images","volume":"28","author":"Lee","year":"1990","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"2270","DOI":"10.1109\/36.868884","article-title":"Detection of coastlines in SAR images using wavelet methods","volume":"38","author":"Niedermeier","year":"2000","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"605","DOI":"10.14358\/PERS.70.5.605","article-title":"A complete high-resolution coastline of Antarctica extracted from orthorectified Radarsat SAR imagery","volume":"70","author":"Liu","year":"2004","journal-title":"Photogramm. Eng. Remote Sens."},{"key":"ref_18","first-page":"99","article-title":"Algorithmic foundation and software tools for extracting shoreline features from remote sensing imagery and LiDAR data","volume":"3","author":"Liu","year":"2011","journal-title":"J. Geogr. Inf. Syst."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"1461","DOI":"10.1016\/j.patrec.2004.05.022","article-title":"Coastline extraction from SAR images and a method for the evaluation of the coastline precision","volume":"25","author":"Dellepiane","year":"2004","journal-title":"Pattern Recogn. Lett."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"1350","DOI":"10.1109\/LGRS.2013.2241013","article-title":"Unsupervised coastal line extraction from SAR images","volume":"10","author":"Baselice","year":"2013","journal-title":"IEEE Geosci. Remote Sens."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"672","DOI":"10.1080\/2150704X.2014.960606","article-title":"Analysis of Landsat-8 OLI imagery for land surface water mapping","volume":"5","author":"Du","year":"2014","journal-title":"Remote Sens. Lett."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"442","DOI":"10.1016\/S0034-4257(02)00059-7","article-title":"Waterline extraction from Landsat TM data in a tidal flat: A case study in Gomso Bay, Korea","volume":"83","author":"Ryu","year":"2002","journal-title":"Remote Sens. Environ."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"65","DOI":"10.1016\/j.ocecoaman.2004.11.004","article-title":"Remote sensing and GIS-based integrated analysis of coastal changes and their environmental impacts in Lingding Bay, Pearl River Estuary, South China","volume":"48","author":"Chen","year":"2005","journal-title":"Ocean Coast. Manag."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"769","DOI":"10.1007\/s12665-010-0564-9","article-title":"Change detection of the coastal zone east of the Nile Delta using remote sensing","volume":"62","author":"Hereher","year":"2011","journal-title":"Environ. Earth Sci."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"32","DOI":"10.1016\/j.geomorph.2010.12.001","article-title":"Coastline change of the Yellow River estuary and its response to the sediment and runoff (1976\u20132005)","volume":"127","author":"Cui","year":"2011","journal-title":"Geomorphology"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"1425","DOI":"10.1080\/01431169608948714","article-title":"The use of the Normalized Difference Water Index (NDWI) in the delineation of open water features","volume":"17","author":"Mcfeeters","year":"1996","journal-title":"Int. J. Remote Sens."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"333","DOI":"10.1007\/s11269-005-3281-5","article-title":"Delineation of flood-prone areas using remote sensing techniques","volume":"19","author":"Jain","year":"2005","journal-title":"Water Resour. Manag."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"5767","DOI":"10.1080\/01431160802060912","article-title":"Modelling spatial-temporal change of Poyang Lake using multitemporal Landsat imagery","volume":"29","author":"Hui","year":"2008","journal-title":"Int. J. Remote Sens."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"3025","DOI":"10.1080\/01431160600589179","article-title":"Modification of normalised difference water index (NDWI) to enhance open water features in remotely sensed imagery","volume":"27","author":"Xu","year":"2006","journal-title":"Int. J. Remote Sens."},{"key":"ref_30","doi-asserted-by":"crossref","unstructured":"Wang, Y., Huang, F., and Wei, Y. (2013, January 20\u201322). Water body extraction from Landsat ETM+ image using MNDWI and KT transformation. Proceedings of the IEEE 2013 21st International Conference on Geoinformatics, Kaifeng, China.","DOI":"10.1109\/Geoinformatics.2013.6626162"},{"key":"ref_31","doi-asserted-by":"crossref","unstructured":"Shen, L., and Li, C. (2010, January 18\u201320). Water body extraction from Landsat ETM+ imagery using adaboost algorithm. Proceedings of the IEEE 2010 18th International Conference on Geoinformatics, Beijing, China.","DOI":"10.1109\/GEOINFORMATICS.2010.5567762"},{"key":"ref_32","doi-asserted-by":"crossref","unstructured":"Li, L., Li, Y., Liu, K., and Wang, P. (2016, January 28\u201329). The assessment and influence factors analysis of development level of node cities on the maritime silk route. Proceedings of the 2016 International Conference on Education, Management Science and Economics, Beijing, China.","DOI":"10.2991\/icemse-16.2016.121"},{"key":"ref_33","first-page":"64","article-title":"Definition of the management boundary between river and sea in Ningbo","volume":"27","author":"Yang","year":"2009","journal-title":"J. Mar. Sci."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"342","DOI":"10.1016\/j.jcv.2012.04.021","article-title":"Epidemiological and etiological characteristics of hand, foot, and mouth disease in Ningbo, China, 2008\u20132011","volume":"54","author":"Ni","year":"2012","journal-title":"J. Clin. Virol."},{"key":"ref_35","first-page":"559","article-title":"Geomorphological development and sedimentation in qiantang estuary and Hangzhou bay","volume":"3","author":"Chen","year":"1990","journal-title":"J. Coast. Res."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"137","DOI":"10.1016\/j.chemosphere.2010.12.070","article-title":"Polychlorinated biphenyls in surface sediments of Yueqing Bay, Xiangshan Bay, and Sanmen Bay in East China Sea","volume":"83","author":"Yang","year":"2011","journal-title":"Chemosphere"},{"key":"ref_37","unstructured":"Huang, S.C., Lou, H.F., Xie, Y.L., and Hu, J.J. (2003, January 9\u201311). Hydrodynamic environment and its effects in the Xiangshan Bay. Proceedings of the International Conference on Estuaries and Coasts, Hangzhou, China."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"811","DOI":"10.1007\/s00128-012-0777-6","article-title":"Residues of organochlorine pesticides in water and suspended particulate matter from Xiangshan Bay, East China Sea","volume":"89","author":"Li","year":"2012","journal-title":"Bull. Environ. Contam. Toxicol."},{"key":"ref_39","first-page":"701","article-title":"Suitability evaluation of land use in coastal zones: A case study in southern Hangzhou Bay","volume":"34","author":"Li","year":"2015","journal-title":"Geogr. Res."},{"key":"ref_40","first-page":"43","article-title":"Monitoring and analysis of coastline changes of the Sanmen Bay with remote sensing during the past 40 years","volume":"39","author":"Chen","year":"2015","journal-title":"Mar. Sci."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"688","DOI":"10.2112\/03-0071.1","article-title":"Shoreline definition and detection: A review","volume":"214","author":"Boak","year":"2005","journal-title":"J. Coast. Res."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.rse.2012.02.024","article-title":"Automatic extraction of shorelines from Landsat TM and ETM+ multi-temporal images with subpixel precision","volume":"123","author":"Ruiz","year":"2012","journal-title":"Remote Sens. Environ."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"16241","DOI":"10.3390\/rs71215828","article-title":"Remotely Sensed Trajectory Analysis of Channel Migration in Lower Jingjiang Reach during the Period of 1983\u20132013","volume":"7","author":"Yang","year":"2015","journal-title":"Remote Sens."},{"key":"ref_44","doi-asserted-by":"crossref","unstructured":"Du, Y., Zhang, Y., Ling, F., Wang, Q., Li, W., and Li, X. (2016). Water bodies\u2019 mapping from sentinel-2 imagery with modified normalized difference water index at 10-m spatial resolution produced by sharpening the SWIR band. Remote Sens., 8.","DOI":"10.3390\/rs8040354"},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"5530","DOI":"10.3390\/rs5115530","article-title":"A comparison of land surface water mapping using the normalized difference water index from TM, ETM+ and ALI","volume":"5","author":"Li","year":"2013","journal-title":"Remote Sens."},{"key":"ref_46","first-page":"589","article-title":"A study on information extraction of water body with the modified normalized difference water index (MNDWI)","volume":"5","author":"Xu","year":"2005","journal-title":"J. Remote Sens."},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"1307","DOI":"10.14358\/PERS.75.11.1307","article-title":"Analysis of dynamic thresholds for the normalized difference water index","volume":"75","author":"Ji","year":"2009","journal-title":"Photogramm. Eng. Remote Sens."},{"key":"ref_48","first-page":"23","article-title":"A threshold selection method from gray-level histograms","volume":"11","author":"Otsu","year":"1975","journal-title":"Automatica"},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"115","DOI":"10.1109\/21.259692","article-title":"An efficient differential box-counting approach to compute fractal dimension of image","volume":"24","author":"Sarkar","year":"1994","journal-title":"IEEE Trans. Syst. Man Cybern."},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"447","DOI":"10.1023\/B:MATG.0000029299.02919.f8","article-title":"On fractal dimensions of China\u2019s coastlines","volume":"36","author":"Zhu","year":"2004","journal-title":"Math. Geol."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"3","DOI":"10.1111\/j.1467-9671.2011.01292.x","article-title":"Measuring historical coastal change using GIS and the change polygon approach","volume":"16","author":"Smith","year":"2012","journal-title":"Trans. GIS"},{"key":"ref_52","doi-asserted-by":"crossref","unstructured":"Thieler, E.R., Himmelstoss, E.A., Zichichi, J.L., and Ergul, A. (2009). Digital Shoreline Analysis System (DSAS) Version 4.0-An. ArcGIS Extension for Calculating Shoreline Change.","DOI":"10.3133\/ofr20081278"},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"4239","DOI":"10.1007\/s12517-014-1472-1","article-title":"Shoreline change assessment using remote sensing and GIS techniques: A case study of the Medjerda delta coast, Tunisia","volume":"8","author":"Louati","year":"2015","journal-title":"Arab. J. Geosci."},{"key":"ref_54","first-page":"1","article-title":"A study on coastline extraction and its trend based on remote sensing image data mining","volume":"2013","author":"Zhang","year":"2013","journal-title":"Abstr. Appl. Anal."},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"1168","DOI":"10.1109\/LGRS.2013.2288918","article-title":"Geometric accuracy validation for ZY-3 satellite imagery","volume":"11","author":"Wang","year":"2014","journal-title":"IEEE Geosci. Remote Sens."},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"19","DOI":"10.1016\/j.coastaleng.2012.11.011","article-title":"A numerical shoreline model for shorelines with large curvature","volume":"74","author":"Kaergaard","year":"2013","journal-title":"Coast. Eng."},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"935","DOI":"10.1177\/25.7.894009","article-title":"Proof without prejudice: Use of the Kolmogorov-Smirnov test for the analysis of histograms from flow systems and other sources","volume":"7","author":"Young","year":"1977","journal-title":"J. Histochem. Cytochem."},{"key":"ref_58","doi-asserted-by":"crossref","first-page":"1757","DOI":"10.1016\/j.csr.2009.03.009","article-title":"Modeling the tidal channel morphodynamics in a macro-tidal embayment, Hangzhou Bay, China","volume":"29","author":"Xie","year":"2009","journal-title":"Cont. Shelf Res."}],"container-title":["ISPRS International Journal of Geo-Information"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2220-9964\/6\/3\/68\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T18:29:31Z","timestamp":1760207371000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2220-9964\/6\/3\/68"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,3,2]]},"references-count":58,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2017,3]]}},"alternative-id":["ijgi6030068"],"URL":"https:\/\/doi.org\/10.3390\/ijgi6030068","relation":{},"ISSN":["2220-9964"],"issn-type":[{"value":"2220-9964","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,3,2]]}}}