Assessment Of The Dynamics Of Coastal Island In Bangladesh Using Geospatial Techniques: Domar Char

Hossain, Khandaker Tanvir; Salauddin,; Tanim, Istiaqe Ahmed

doi:10.3329/jasbs.v42i2.46225

Cited by 13 publications

(3 citation statements)

References 18 publications

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“…Four multi-spectral spatial resolutions with the fewest clouds of Landsat 7 (ETM) for pre-eruption 2009 and Landsat 7 (OLI) 2013, 2017, and Landsat 8 for 2023 years post-eruption were downloaded. To take advantage of the limited availability of cloud-free pictures, data from the United States Geological Survey (USGS) website were used (Emaran et al, 2016;Hossain et al, 2016). The Plawangan Hill vector boundary and Google Earth images from 2023 were used as additional data (Table 1).…”

Section: Forest Land Cover and Carbon Storage Data Collection And Ima...mentioning

confidence: 99%

Development of Land Cover and Carbon Storage in Plawangan Hill of Gunung Merapi National Park, Yogyakarta, Using Landsat Data Series 2009, 2013, 2017, and 2023

Khan,

Sadono,

Wilopo

et al. 2024

jtfm

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Globally, habitat loss, deforestation, and climate change are mostly caused by land cover changes (LCC). The amount of land covered by trees has had a major impact on global warming and climate change. Increasing the amount of land cover helps to mitigate climate change and global warming. This study aims to investigate the changes in land cover and carbon storage in Plawangan Hill, Indonesia, over four years (2009, 2013, 2017, and 2023). The study site was defined as a conservation area that has been periodically impacted both directly and indirectly by volcanic eruptions. Images from Landsat 7 and 8 were used to collect data. Additionally, land cover changes were assessed using the forest canopy density (FCD Mapper) model, which was then utilized to quantify the carbon storage of the research site. The findings demonstrated fluctuations in land cover changes between 2009 and 2023. Additionally, changes in land cover have a direct impact on changes in carbon storage. The age of the trees, type of vegetation, succession stage, and history of eruptions were the variables that were apparent to be the main causes of these changes.

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Section: Forest Land Cover and Carbon Storage Data Collection And Ima...mentioning

confidence: 99%

Development of Land Cover and Carbon Storage in Plawangan Hill of Gunung Merapi National Park, Yogyakarta, Using Landsat Data Series 2009, 2013, 2017, and 2023

Khan,

Sadono,

Wilopo

et al. 2024

jtfm

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“…The area has a semidiurnal tidal regime and is dynamic, with sediment accretion and erosion constantly reshaping and resizing the islands (Hossain et al 2016). For this reason, the topography of the park is changing too.…”

Section: Study Areamentioning

confidence: 99%

Site use by non-breeding Black-tailed Godwits at Nijhum Dweep National Park, Bangladesh

Das¹,

Khandakar²,

Sultana³

et al. 2022

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The Black-tailed Godwit Limosa limosa is a globally Near Threatened species but a common winter visitor to Bangladesh. Although the total wintering population size and trend are unknown, we suspect it is declining due to habitat degradation. Nijhum Dweep National Park is one of the most important sites for Black-tailed Godwits in Bangladesh. Here we report on the site use of Black-tailed Godwits in this national park and adjacent Char Birbira. From October to March 2016-2017 to 2019-2020, we performed 17 winter counts. High tide roosts were counted from vantage points in these tidal areas, whereas foraging activities were observed from boats during low tide. Black-tailed Godwits were always present, with counts ranging from 735 in January 2020 to 8,269 in December 2017 with a mean of 3,304. It is possible that we counted certain individuals or flocks twice. The uncertainty of these counts and population estimates for this area in general suggest that better assessment methods, such as simultaneous high tide counts undertaken at the same time each year, are needed. Our study area met the Ramsar 1% threshold population criterion for the species for 13 of the 17 counts, demonstrating the international importance of this area for Black-tailed Godwits. A more than 80% local decline from 9,000 to 1,707 birds over the last decade was apparent on Damar Char West. Over the decades, the landscape of Damar Char has changed, with increased numbers of households, more land converted to agricultural fields and increased fishing effort. These changes call for better assessments of bird movements and disturbance and more effective conservation actions to help birds and people coexist. We suggest that there should be a monitoring and protection scheme in the Nijhum Dweep management plan that focuses on waterbirds and restricts and regulates access to Damar Char West, East and Char Birbira. An urgent attempt to create awareness among the main stakeholders, fishers and crab hunters, to provide context and engage them in conservation action, should be a priority.

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“…); Shibly and Takewaka, 2012;Islam et al, 2013;Sarwar and Woodroffe, 2013;Islam et al, 2016) have been conducted using GIS and remote sensing techniques on morphological changes in the coastal areas of Bangladesh, the studies were limited to deal with the retreat of shorelines. Some studies (Krantz, 1999;BWDB, 2001;Morner, 2010;Rahman et al, 2011;Rahman, 2012;Alam and Uddin, 2013;Ali et at., 2013;Sarker et al, 2013;Taguchi et al, 2013;Brammer, 2014;Hussain et al, 2014a,b;Ghosh et al, 2015;Uddin, 2015;Emran et al, 2016;Hossain et al, 2016) have identified the dynamic nature of coastal lands but these studies have been conducted only for specific coastal islands, sections and zones. For instance, the work of Brammer (2014) identified the dynamic nature of land from the perspectives of past records of rising sea levels, and analysed the general picture of erosion and accretion in the Meghna estuary area with lesser details for the western coastal zone and no analysis for the eastern coastal zone of the country.…”

Section: Introductionmentioning

confidence: 99%

Where is the coast? Monitoring coastal land dynamics in Bangladesh: An integrated management approach using GIS and remote sensing techniques

Ahmed

Drake

Nawaz

et al. 2018

Ocean & Coastal Management

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This paper draws upon the application of GIS and remote sensing techniques to investigate the dynamic nature and management aspects of land in the coastal areas of Bangladesh. The geomorphological characteristic of the coastal areas is highly dynamic where land erosion and accretion with different rates remain a constant phenomenon. This study focuses on three coastal zones: western, central and eastern that comprise the entire coastal area of the country. At its core, this study uses the past 30 year Landsat satellite images. This research reveals that the rate of accretion in the study area is slightly higher than the rate of erosion. Overall land dynamics indicate a net gain of 237 km² (7.9 km² annual average) of land in the area for the whole period from 1985 to 2015. The results also demonstrate that the rates of both erosion and accretion are higher in the central zone compared to the western and the eastern zones of the coastal area. This is the first time that the entire coastal areas of Bangladesh have been considered for assessment. This study also recommends that coastal managers, planners and policymakers to consider the identified dynamic trends of coastal land before opting for any specific measure. Constant monitoring using the GIS and remote sensing techniques would be a viable management for this purpose. This study has identified some causes of land dynamics, particularly for the three coastal zones, that might be helpful for policymakers in identifying the nature of interventions needs to be taken for specific coastal zones.

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Assessment Of The Dynamics Of Coastal Island In Bangladesh Using Geospatial Techniques: Domar Char

Cited by 13 publications

References 18 publications

Development of Land Cover and Carbon Storage in Plawangan Hill of Gunung Merapi National Park, Yogyakarta, Using Landsat Data Series 2009, 2013, 2017, and 2023

Development of Land Cover and Carbon Storage in Plawangan Hill of Gunung Merapi National Park, Yogyakarta, Using Landsat Data Series 2009, 2013, 2017, and 2023

Site use by non-breeding Black-tailed Godwits at Nijhum Dweep National Park, Bangladesh

Where is the coast? Monitoring coastal land dynamics in Bangladesh: An integrated management approach using GIS and remote sensing techniques

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