Fig. 7: Expansion of dredge-fill construction.
From: Cascading hazards of a major Bengal basin earthquake and abrupt avulsion of the Ganges River
a Dredge-fill construction sites (yellow outline) since 2003 in the vicinity of Dhaka, a capital megacity. Typically 3–4 m of medium-fine-sized river sands are pumped onto the low-lying floodplain to form the construction base. b The number and cumulative area of dredge-fill sites on Holocene deltaic lowlands near Dhaka has increased in the past two decades; nearly 30 sites now encompass ~4000 hectares (40 km2) of new development. c Time-series example of a 20-hectare dredge-fill site near Dhaka, now serving as a major container port and diesel power station. Images and data in (a, c) are from Google Earth Engine110.
