M. D. Reitz, Jennifer Pickering, S. L. Goodbred, Chris Paola et al.
The set of active rivers of the Ganges-Brahmaputra-Meghna (GBM) Delta in Bangladesh overlies an active plate boundary that continually modifies the landscape of the delta by deformation. The response of rivers to spatially variable subsidence, from tectonic tilting or other causes, has been thought ...
Jessica L. Raff, S. L. Goodbred, Jennifer Pickering, Ryan Sincavage et al.
The principal nature-based solution for offsetting relative sea-level rise in the Ganges-Brahmaputra delta is the unabated delivery, dispersal, and deposition of the rivers' ~1 billion-tonne annual sediment load. Recent hydrological transport modeling suggests that strengthening monsoon precipitatio...
Alexander van Geen, K. A. Radloff, Z. Aziz, Zhongqi Cheng et al.
One of the reasons the processes resulting in As release to groundwater in southern Asia remain poorly understood is the high degree of spatial variability of physical and chemical properties in shallow aquifers. In an attempt to overcome this difficulty, a simple device that collects groundwater an...
Aneire Khan, Wei Xun, Habibul Ahsan, Paolo Vineis
Click to increase image sizeClick to decrease image size Notes 1. IPCC, "IPCC Fourth Assessment Report. Asia," in Climate Change 2007: Impacts, Adaptation and Vulnerability. Contribution of Working Group II to the Fourth Assessment Report of Intergovernmental Panel on Climate Change (Cambridge, UK: ...
Scott C. Worland, George M. Hornberger, S. L. Goodbred
Abstract Deltaic groundwater resources are often vulnerable to degradation from seawater intrusion or through interaction with saline paleowaters. The Ganges‐Brahmaputra‐Meghna River delta, in Bangladesh and West Bengal, India, is a particularly vulnerable area with an estimated 20 million coastal i...
Christopher Small, M. S. Steckler, L. Seeber, S. H. Akhter et al.
John C. Ayers, Gregory George, David Fry, Laura Benneyworth et al.
To identify the causes of salinization and arsenic contamination of surface water on an embanked island (i.e., polder) in the tidal delta plain of SW Bangladesh we collected and analyzed water samples in the dry (May) and wet (October) seasons in 2012-2013. Samples were collected from rice paddies (...
R. P. Hale, Rachel Bain, S. L. Goodbred, Jim Best
Abstract. The landscape of southwest Bangladesh, a region constructed primarily by fluvial processes associated with the Ganges River and Brahmaputra River, is now maintained almost exclusively by tidal processes as the fluvial system has migrated east and eliminated the most direct fluvial input. I...
C. Grall, M. S. Steckler, Jennifer Pickering, S. L. Goodbred et al.
Relative sea level history, which is the result of the combined effects of land subsidence, sediment supply and absolute sea level history may be reconstructed from preserved sediment thicknesses. However, variations in the preserved sediment thicknesses between different sedimentary environments st...
Rachel Bain, R. P. Hale, S. L. Goodbred
We examine variations in discharge exchange between two parallel, 1‐ to 2‐km‐wide tidal channels (the Shibsa and the Pussur) in southwestern Bangladesh over spring‐neap, and historical timescales. Our objective is to evaluate how large‐scale, interconnected tidal channel networks respond to anthropo...
Jennifer Pickering, S. L. Goodbred, Jeremiah C. Beam, John C. Ayers et al.
Abstract Floodplains, paleosols, and antecedent landforms near the apex of the Brahmaputra fan delta in north‐central Bangladesh preserve cycles of fluvial sediment deposition, erosion and weathering. Together these landforms and their associated deposits comprise morphostratigraphic units that defi...
Khan Mz, Holly A. Michael, Bibhash Nath, Linden Huhmann et al.
Abstract Elevated arsenic in Bengal Basin aquifers threatens human health. Most deep (>150 m) groundwater in Pleistocene aquifers is low in arsenic; however higher concentrations have been reported in the southwest border region. Here, we establish that this extensive arsenic contamination at dep...
Ryan Sincavage, S. L. Goodbred, Jennifer Pickering
Abstract The Holocene stratigraphy of Sylhet basin, a tectonically influenced sub‐basin within the Ganges‐Brahmaputra‐Meghna delta ( GMBD ), provides evidence for autogenic and allogenic controls on fluvial system behaviour. Using Holocene lithology and stratigraphic architecture from a dense boreho...
Mikhaïl Karpytchev, Valérie Ballu, Yann Krien, M. Becker et al.
Abstract The contribution of subsidence to relative sea level rise in the Ganges‐Brahmaputra delta (GBD) is largely unknown and may considerably enhance exposure of the Bengal Basin populations to sea level rise and storm surges. This paper focuses on estimating the present‐day subsidence induced by...
Gregory H. Sambrook Smith, Andrew Nicholas, Jim Best, Jonathan M. Bull et al.
Abstract Channel confluences are key nodes within large river networks, and yet surprisingly little is known about their spatial and temporal evolution. Moreover, because confluences are associated with vertical scour that typically extends to several times the mean channel depth, the deposits assoc...