Brahmaputra and the Socio-Economic Life of People of Assam

Nayak, Purusottam; Panda, Bhagirathi

doi:10.2139/ssrn.2790210

Cited by 10 publications

(4 citation statements)

References 6 publications

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“…Such parameters show how the hydrological processes modify the topography through erosion and sediment deposition. A small amount of change in the Brahmaputra River will significantly affect the peoples' livelihood (Nayak & Panda, 2016).…”

Section: Resultsmentioning

confidence: 99%

Characterization and assessment of flood inundated areas of lower Brahmaputra River Basin using multitemporal Synthetic Aperture Radar data: A case study from NE India

et al. 2021

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Floods are known to be one of the greatest disasters in documented human history. In the Indian subcontinent, the Ganga-Brahmaputra plains annually accommodate monsoon-driven flooding of the Brahmaputra River and its tributaries, causing widespread flood inundation and geomorphic changes. In the present study, we present flood inundation maps of Assam and suggest a possible geomorphic explanation for the frequent flood inundation areas. We have used a novel SAR (Synthetic Aperture Radar)based approach for a comprehensive flood inundation mapping of Assam. The Google Earth Engine (GEE), a cloud-based data computing and analysis platform, is used to access and analyse the Sentinel SAR 1 GRD datasets for 30 events from 2018 to 2020.The Sentinel-2 imagery, WWF Hydrosheds, 90 m DEM (SRTM), and JRC Global Surface Water Dataset are also used to conduct the flood inundation mapping for 80,236(1 Â 1 km) grids in Assam and morphometric analysis in the lower Brahmaputra River Basin. We also carried out detailed mapping and geomorphic analysis on channel and sediment bar area and channel width in 100 (6.25 km wide) grids on the Brahmaputra River in Assam. Our results suggest that high flood inundation areas are well scattered in Assam, and Lakhimpur, Nagaon, Sibsagar, Sonitpur, and Barpeta are the most affected districts from 2018 to 2020. We also observe that the geomorphology can act as primary control over the frequent flood inundation in highlighted areas in Assam. On a basin scale, we recognize a low correlation between the stream power index, topographic wetness index, plan curvature, slope, and flood inundated areas, mainly due to the coarse resolution of the digital elevation model. In a braided river system like the Brahmaputra River, the channel and bar area and channel width are well correlated during flood events. Finally, the channel sinuosity also controls channel and bar area and width during regular and influential flood events.

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Section: Resultsmentioning

confidence: 99%

Characterization and assessment of flood inundated areas of lower Brahmaputra River Basin using multitemporal Synthetic Aperture Radar data: A case study from NE India

et al. 2021

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“…Being an island, Majuli is particularly susceptible to the erosional work of the river. According to various estimates (Nayak & Das 2008;Nayak & Panda 2016), the area of Majuli has shrunk from its peak of 1246 km 2 in 1951 to around 484 km 2 currently (Sahay 2017). Such largescale change in the geography of Majuli has led to changes in the economy, society, and culture of the island (Das 2014).…”

Section: Riverbank Erosion and Its Impact On Majulimentioning

confidence: 99%

Developing a cultural geomorphology of hazards for heritage conservation: reflections from Majuli Island of India

Sahay,

Prasad,

Bajaj

2024

Fennia

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Cultural Geomorphology attempts to find the relationships between cultural elements and geomorphological features of a region. Such studies have proven invaluable to understanding the interactions between culture and geomorphology and have formed an important part of the epistemology of nature-society studies. Using concepts of Cultural Geomorphology, the current study argues for the need to develop a Cultural Geomorphology of hazards. The study shows that such a work will be invaluable in preserving the knowledge of cultural heritage sites that are at risk of being permanently lost because of the changing landscape brought about by natural hazards or climate change related events.

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“…India is concerned that China's hydropower and river diversion plans will reduce the flow of water downstream, which will bring enormous economic and environmental loss to India. For Bangladesh, Brahmaputra is the lifeline to a large section of its population (Nayak & Panda, 2016), but the country is faced with multiple threats including riverbank erosion, sedimentation, annual floods, and diminished water flow and groundwater availability in the dry season. Thus, Bangladesh's main domestic challenges encompass managing the physical impacts of the river (Nishat & Faisal, 2000;Malhotra, 2010;Samaranayake et al, 2016) and Bangladesh also sees water infrastructure development plans by India and China as a threat to its water resources.…”

Section: Current Issuesmentioning

confidence: 99%

Treaties can be a non-starter: a multi-track and multilateral dialogue approach for Brahmaputra Basin

Barua

Vij

2018

Water Policy

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Countries sharing the Brahmaputra River have for decades deliberated on formulating and implementing cooperative strategies to develop the potential of the basin. Yet, little progress has been made so far at the government-to-government track 1 level in achieving regional cooperation due to the diverse national interests of the riparian countries. This has led to tension and friction among co-riparian nations and mistrust at political level. Drawing from the Brahmaputra Dialogue, this paper aims to highlight the merit of multi-track and multilateral dialogue processes for building trust and confidence between the riparian countries – paving a way towards transboundary cooperation. The paper concludes that given the geo-politics and the national interests of each riparian nation, negotiation for a treaty for cooperation through track 1 diplomacy, in the Brahmaputra River Basin (BRB), is a non-starter. Multi-track and multilateral dialogues can provide a platform to pursue positive interactions and can be viewed as an extension to existing state-diplomacy in BRB, to bring about sustainable change in the basin management.

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Brahmaputra and the Socio-Economic Life of People of Assam

Cited by 10 publications

References 6 publications

Characterization and assessment of flood inundated areas of lower Brahmaputra River Basin using multitemporal Synthetic Aperture Radar data: A case study from NE India

Characterization and assessment of flood inundated areas of lower Brahmaputra River Basin using multitemporal Synthetic Aperture Radar data: A case study from NE India

Developing a cultural geomorphology of hazards for heritage conservation: reflections from Majuli Island of India

Treaties can be a non-starter: a multi-track and multilateral dialogue approach for Brahmaputra Basin

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