Consequences of global warming and sea level rise in Bangladesh

Choudhury, Abhijit; Haque, Md. Anwarul; Quadir, Dewan Abdul

doi:10.1080/01490419709388092

Cited by 22 publications

(14 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2c(1)) The yearly mean high tide data were plotted for each year from which a best fitted linear line using least square method was calculated for predicting the rate of sea level change. But the derived relative change of sea level which is 14 mm/ year seems to be an over estimation if compared to 4-7.8 mm/year assessment of Singh (2002) whereas it seems ok if compared with Choudhury et al (1997) who postulated a sea- Fig. 2 (continued) level rise of 10-15 mm/year along the Bangladesh coast.…”

Section: Parameters and Their Rankingmentioning

confidence: 79%

Assessment of Coastal Vulnerability Due to Sea Level Change at Bhola Island, Bangladesh: Using Geospatial Techniques

Islam

Hossain²,

Murshed

2015

J Indian Soc Remote Sens

View full text Add to dashboard Cite

With continued climate change, coastal areas are subjected to undesirable situations in the form of sea-level rise and its adverse outcomes like storm surge, flooding and erosion. Being a unique geographic location, low topography, relatively higher population density as well as overwhelming dependence on natural resources, Bangladesh is one of the vulnerable countries exposed to the impacts of global warming and climate change. Bhola in southern Bangladesh represents the world's most dynamic estuary is potentially vulnerable to accelerated sea level rise and associated calamities. The present study aims to develop a coastal vulnerability index (CVI) using eight parameters namely (a) geomorphology, (b) slope, (c) relative sea level change rate, (d) mean tide range (e) shoreline erosion and accretion, (f) population (g) bathymetry and (h) coastal flooding which were addressed as the relative risk variable for the study area using geospatial techniques i.e., Remote Sensing and GIS. The aforementioned parameters were ranked on the basis of their potential contribution to physical changes on the coast, as sea-level rises, and the final calculation was done over 263.87 km shoreline by the square root of the mean values of the ranked variables. According to the vulnerability index, about 22 % corresponding to 57.23 km of the entire coast is under very high-risk and another 29 % representing 75.26 km is under high-risk. Again, 25 % encompassing 67.69 km shoreline is at moderate risk and 24 %, that is 63.69 km shoreline is found to be at low risk. The most vulnerable coastal regions are found mainly along the western coast of Char Fasson and northern and southwestern coast of Bhola Sadar of Bhola Island.

show abstract

Section: Parameters and Their Rankingmentioning

confidence: 79%

Assessment of Coastal Vulnerability Due to Sea Level Change at Bhola Island, Bangladesh: Using Geospatial Techniques

Islam

Hossain²,

Murshed

2015

J Indian Soc Remote Sens

View full text Add to dashboard Cite

show abstract

“…Choudhury, Haque, and Quadir (1997) did not find significant changes in the temperature and rainfall data from 1960s to 1993 in Bangladesh and concluded that three decades are not sufficient for determining a longterm trend. However, they mentioned that rainfall might increase with an increase of temperature, in accordance with the IPCC's 1990 business-as-usual scenario (Tegart, Sheldon, and Griffiths, 1990).…”

Section: Impact Of Climate Changementioning

confidence: 99%

“…A SLR of 1 m would cause inundation of 17% of the total area of Bangladesh (Choudhury, Haque, and Quadir, 1997). In the same way, IPCC (2001) predicted about 21% total land inundation because of a SLR of 1 m. Nevertheless, about 11% (4,107 km 2 ) of the coastal zone (about 3% of the total area of Bangladesh) could be more heavily inundated, at an 88-cm SLR, in 2100 (WARPO, 2005).…”

Section: Impact Of Climate Changementioning

confidence: 99%

“…Therefore, the expediting rate of climate change is very likely to cause several changes in the physical processes. Choudhury, Haque, and Quadir (1997) (2010); and many others have carried out studies addressing the changing flooding and inundation pattern in Bangladesh because of climate change. Though the process of fluvial adjustment with climate change is not well understood, it presents complicated and challenging issues (Goudie, 2006;Macklin and Lewin, 1997).…”

Section: Impact Of Climate Changementioning

confidence: 99%

“…Bangladesh, with more than 2% of the world's population and a density of more than 1080 people/km 2 (Steckler et al, 2010), has a highly vulnerable coastal environment (Minar, Hossain, and Shamsuddin, 2013). Sea level rise (SLR) of 1 m would cause inundation of 17% to 21% of the total area of Bangladesh (Choudhury, Haque, and Quadir, 1997;IPCC, 2001). Because more than half of the area is less than 5 m above mean sea level, according to the digital elevation model, it could be more vulnerable for higher SLR and a high rate of subsidence.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Evolution of the Bengal Delta and Its Prevailing Processes

Akter

Sarker

Popescu

et al. 2016

Journal of Coastal Research

View full text Add to dashboard Cite

The Jamuna–Brahmaputra River, Bangladesh

et al. 2022

View full text Add to dashboard Cite

Bangladesh is dominated by three great rivers -the Jamuna-Brahmaputra, Ganga and Meghna -that combine to feed sediment into one of the World's largest deltas in the Bay of Bengal (Figure 21.1). Bangladesh has been shaped by, and is dependent upon, its rivers, which provide fertile soils and a diverse flora and aquaculture but also bring significant flood hazard and risk to infrastructure for a large and growing population. Current anthropogenic stresses, in terms of changing climate, water diversions, pollution and sediment extraction, are posing new pressures to the river and its inhabitants (Best, 2019). The people of Bangladesh have adapted their lifestyle for centuries to live with river flooding -frequently moving their temporary bankside homes, planting on newly emergent river bars, and sometimes raising their homesteads above water level in flood periods (Paul, 1997). However, a growing population, coupled with the expansion of infrastructure and economic development, has resulted in an increase in the intensity of flood damage (FPCO, 1995;Paul, 1997; CPD, 2004). The lives of many millions of Bangladeshi citizens are reliant on these rivers, with up to 2.3 million people living on the riverine islands alone (Schmuk-Widmann, 2001). Bangladesh's rural economy relies upon annual 'normal' floods to bring moisture and fresh sediments to the floodplain soils (Paul, 1997): for instance, two of the three seasonal rice varieties (aus and aman) cannot survive without floodwater and the fish caught both on the floodplain during flood season and from the many floodplain ponds ('beels') provide the main source of protein for many rural populations (Chowdhury, 1994;Paul, 1997; de Graff, 2003;Shankar et al., 2004). However, the effect of 'abnormal' floods can be devastating and result in appreciable damage to crops and houses, severe bank erosion with consequent loss of homesteads, schools and land, and loss of human lives, livestock and fisheries (BDER, 2004;Shankar et al., 2004). For example, in the 1998 flood, over 70 % of the land area of Bangladesh was inundated, affecting 31 million people and 1 million homesteads (Chowdhury, 2000). The 1998 flood, which had an unusually long duration from July to September, claimed 918 human lives and was responsible for damaging 16 000 and 6000 km of roads and embankments, respectively, and affecting 6000 km 2 of standing crops (Chowdhury, 2000). In the 2004 floods, over 25 % of the population of Bangladesh, or 36 million people, was affected by the floods; 800 lives were lost; 952 000 houses were destroyed and 1.4 million badly damaged; 24 000 educational institutions were affected, including the destruction of 1200 primary schools; 2 million government and private tubewells were affected, and over 3 million latrines were damaged or washed away, this increasing the risks of diarrhoea, cholera and other waterborne diseases. Also, 1.1 million ha of rice crop was submerged and lost before it could be harvested, with 7 % of the yearly aus (early season) rice crop lost; 270 000 ha o...

show abstract

Consequences of global warming and sea level rise in Bangladesh

Cited by 22 publications

References 5 publications

Assessment of Coastal Vulnerability Due to Sea Level Change at Bhola Island, Bangladesh: Using Geospatial Techniques

Assessment of Coastal Vulnerability Due to Sea Level Change at Bhola Island, Bangladesh: Using Geospatial Techniques

Evolution of the Bengal Delta and Its Prevailing Processes

The Jamuna–Brahmaputra River, Bangladesh

Contact Info

Product

Resources

About