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Quantitative assessment of present and the future potential threat of coastal erosion along the Odisha coast using geospatial tools and statistical techniques.
Mishra, Manoranjan; Chand, Pritam; Beja, Santosh Kumar; Santos, Celso Augusto Guimarães; Silva, Richarde Marques da; Ahmed, Ishtiaq; Kamal, Abu Hena Mustafa.
Afiliación
  • Mishra M; Department of Geography, Fakir Mohan University, VyasaVihar, Nuapadhi, 756089 Balasore, Odisha, India. Electronic address: geo.manu05@googlemail.com.
  • Chand P; Department of Geography, School of Environment and Earth Sciences, Central University of Punjab, VPO-Ghudda, 151401 Bathinda, Punjab, India. Electronic address: pritam.chand@cup.edu.in.
  • Beja SK; Department of Environmental Studies, Berhampur University, 760007 Berhampur, Odisha, India. Electronic address: santoshkbeja@gmail.com.
  • Santos CAG; Department of Civil and Environmental Engineering, Federal University of Paraíba, 58051-900 João Pessoa, Paraíba, Brazil. Electronic address: celso@ct.ufpb.br.
  • Silva RMD; Department of Geosciences, Federal University of Paraíba, 58051-900 João Pessoa, Paraíba, Brazil. Electronic address: richarde@geociencias.ufpb.br.
  • Ahmed I; Department of Geography, School of Environment and Earth Sciences, Central University of Punjab, VPO-Ghudda, 151401 Bathinda, Punjab, India. Electronic address: ishtiaqgeo786@gmail.com.
  • Kamal AHM; Faculty of Fisheries and Food Science, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia; Centre for Environment and Sustainability, Presidency Education, 51 Panchlaish, Chittagong 4203, Bangladesh. Electronic address: hena71@yahoo.com.
Sci Total Environ ; 875: 162488, 2023 Jun 01.
Article en En | MEDLINE | ID: mdl-36858239
The eastern coast of India is one of the regions where most of the population resides in urban areas in the low-elevation coastal zone, making it vulnerable to frequent extreme weather events. The objectives of this study are to assess the short- to long-term shoreline changes of the Odisha coast, to understand how anthropogenic influences, and particularly extreme natural events, affect these changes, and to predict shoreline changes for 2050. This study utilized multi-temporal/spectral/spatial resolution satellite images and a digital shoreline analysis (DSAS) tool to appraise the short- (at five/six-year intervals) and long-term (1990-2019) shoreline dynamics along the coastal part of Odisha over the past three decades (1990-2019). The long-term shoreline analysis shows that the mean shoreline change is about 0.67 m/year and highlights that 52.47 % (227.4 km), 34.70 % (150.4 km), and 12.83 % (55.6 km) of the total Odisha coastline exhibit erosion, accretion, and stability, respectively. During the short-term analysis, the 2000-2005 period had the highest percentage of erosion (64.27 %), followed by the 2005-2010 period with an erosional trend of 59.06 %. The 1995-2000 period showed an accretion trend, whereas, during the last period, i.e., 2015-2019, the percentage of transects depicting erosion and accretion was almost similar. In 2050, 55.85 % of the transects are expected to show accretion, while 44.15 % would show erosion or a constant trend. The study identified the hotspots of coastal erosion along delineated study zones by synthesizing data from previous studies as well. The regional analysis of shoreline change along the Odisha coast would not only provide coastal managers with critical information on shoreline dynamics but also draw attention to vulnerable areas linked to shoreline dynamicity along the coast.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Total Environ Año: 2023 Tipo del documento: Article Pais de publicación: Países Bajos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Total Environ Año: 2023 Tipo del documento: Article Pais de publicación: Países Bajos