Assessment of flood hazard in a riverine tract between Damodar and Dwarkeswar River, Hugli District, West Bengal, India

被引：22

作者：

Das B. ^{[1
]}

Pal S.C. ^{[1
]}

Malik S. ^{[1
]}

机构：

[1] Department of Geography, The University of Burdwan, Burdwan, 713104, West Bengal

来源：

Spatial Information Research | 2018年 / 26卷 / 1期

关键词：

Arambag; Flood; Gumbel; Hazard; Interfluves;

D O I：

10.1007/s41324-017-0157-8

中图分类号：

学科分类号：

摘要：

Flood is mainly a natural hazard which causes heavy destruction to society. A part of Arambag Sub-Division mainly Arambag, Pursurah, Khanakul-I and II Blocks of Hugli District belongs to the Damodar–Dwarkeswar interfluvial region which is one of the flood prone areas of West Bengal. A huge area of these Blocks goes under water every year during the monsoon season. The Recurrence interval of floods for this region is very low. The frequency of extreme floods is increasing in recent times. Out of 38 years of observed data, moderate to heavy floods have occurred in 21 times and the Extreme Danger Level (EDL) has crossed 17 times. Gumbel’s extreme value distribution (EV-I) method is applied to identify the recurrence interval with the magnitude of events. It is one of the best suitable methods for analyzing extreme events. It has been observed that flood happens in this region when discharge crosses 2,000 cumecs (m3 s−1). It has been figured out from the Gumbel’s extreme value that discharge of 2,175.3 cumec at Horinkhola Gauge station has a return period of 2.03 years and its probability of occurrence is 49.26%. So there is 50% chance of a flood in every year. Population density of this region is very high (1,381 persons/km2) and economic activity mainly depends upon agriculture. Most of the people of this region are affected by floods which brings negative impact on the economy and food security. 327.8 km2 of land (47% of total area) was inundated during the floods of 2015. If this trend continues, future flooding will be very disastrous. Structural as well as non-structural measures should have to be taken for managing the overall situation. © 2017, Korean Spatial Information Society.

引用

页码：91 / 101

页数：10

共 30 条

[1]

Mukhopadhyay S., A geo-environmental assessment of flood dynamics in lower Ajoy River inducing sand splay problem in Eastern India, Ethiopian Journal of Environmental Studies and Management, 3, 2, pp. 96-110, (2010)

[2]

Mirza M.M.Q., Climate change, flooding in South Asia and implications, Regional Environmental Change, 11, 1, pp. 95-107, (2011)

[3]

Sharifi F., Samadi S.Z., Wilson C.A., Causes and consequences of recent floods in the Golestan catchments and Caspian Sea regions of Iran, Natural Hazards, 61, 2, pp. 533-550, (2012)

[4]

Sanyal J., Lu X.X., Application of remote sensing in flood management with special reference to monsoon Asia: A review, Natural Hazards, 33, 2, pp. 283-301, (2004)

[5]

Shaw R., Krishnamurthy R.R., Disaster management: Global challenges and local solutions, (2009)

[6]

Climate change 2007—impacts, adaptation and vulnerability, Working Group II Contribution to the Fourth Assessment Report of the IPCC, 4, (2007)

[7]

Knox J.C., Sensitivity of modern and Holocene floods to climate change, Quaternary Science Reviews, 19, 1, pp. 439-457, (2000)

[8]

Macklin M.G., Rumsby B.T., Changing climate and extreme floods in the British uplands, Transactions of the Institute of British Geographers, 32, 2, pp. 168-186, (2007)

[9]

Syvitski J.P., Brakenridge G.R., Causation and avoidance of catastrophic flooding along the Indus River, Pakistan, GSA Today, 23, 1, pp. 4-10, (2013)

[10]

Baker V.R., Palaeoflood hydrology in a global context, CATENA, 66, 1, pp. 161-168, (2006)

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