The historical shoreline change from 1978 to 2017 along Odisha coast are studied using toposheet, time-series Landsat, Indian Remote Sensing satellite data, and observed data. Shoreline change at south Odisha coast, Puri, Konark, Paradip and Pentha at different epochs (3–12 yrs) during 1978–2017 showsdistinct spatio-temporal variability, which is discussed in relation to cyclonic storms and coastal structures associated with ports and harbours. The study also generated a long-term (1978–2017) shoreline change statistics (EPR, LRR, SCE and NSM) using Digital Shoreline Analysis System (DSAS) at every500 m interval for the Bve zones of Odisha coast covering 425 km, identiBed the hotspots of erosion and accretion and divided the shoreline into Bve different classes of erosion and accretion. IdentiBed lengths of shoreline with high erosion, low erosion, stable, low accretion and high accretion are respectively, 257.1,92.2, 25.5, 10.2 and 40 km, based on LRR. The results indicate that erosion is predominant along Odisha coast. Zone-D (Paradip to Pentha) with highest percentage of high erosion is most vulnerable, while Zone- E (Pentha–Balasore) with highest percentage of accretion is least vulnerable. Zone-B (Chilika to Konark) with lowest percentage of high erosion and no high accretion is stable.
Volume 130, 2021
Continuous Article Publishing mode
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