Oldfield Estuary is an estuary in the Goldfields-Esperance region of Western Australia.
The estuary has a length of 3 kilometres (2 mi) and is no wider than 600 metres (1,969 ft) with a total area of approximately 1 square kilometre (0 sq mi). [1] The estuary has a main basin area of about 0.5 square kilometres (0 sq mi) and the rest is flood and tidal delta. [2]
The Oldfield River and the Munglinup River both discharge into the estuary.
Uncleared bushland surrounds the estuary which has high dunes to the east and low sediments to the west. The lagoon is filled with river sediment to the north and beach sand to the south with a long high sandbar that breaks every three to four years.
The estuary functions primarily as a result of wave energy. The seagrass Ruppia megacarpa is found in the estuary.[ citation needed ]
The catchment area of the estuary is 30% natural vegetation and 70% cleared for cropping and pasture. The waters of the estuary are saline and heavily tannin-stained. [3]
Bangladesh is a densely populated, low-lying, mainly riverine country located in South Asia with a coastline of 580 km (360 mi) on the northern littoral of the Bay of Bengal. The delta plain of the Ganges (Padma), Brahmaputra (Jamuna), and Meghna Rivers and their tributaries occupy 79 percent of the country. Four uplifted blocks occupy 9 percent and steep hill ranges up to approximately 1,000 metres (3,300 ft) high occupy 12 percent in the southeast and in the northeast. Straddling the Tropic of Cancer, Bangladesh has a tropical monsoon climate characterised by heavy seasonal rainfall, high temperatures, and high humidity. Natural disasters such as floods and cyclones accompanied by storm surges periodically affect the country. Most of the country is intensively farmed, with rice the main crop, grown in three seasons. Rapid urbanisation is taking place with associated industrial and commercial development. Exports of garments and shrimp plus remittances from Bangladeshis working abroad provide the country's three main sources of foreign exchange income.
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33°52′59″S120°47′22″E / 33.88306°S 120.78944°E