Sediments by Mouth of Shatt al-Arab and Irrigated Fields by Karun River, Iran and Iraq – November 30th, 201231.3N 48.6E
This image shows the Shatt al-Arab, a river in Southwest Asia of some 200 km (120 mi) in length, formed by the confluence of the Euphrates and the Tigris in southern Iraq. The southern end of the river constitutes the border between Iraq and Iran down to the mouth of the river as it discharges into the Persian Gulf.
The Karun river, a tributary which joins the waterway from the Iranian side, deposits large amounts of silt into the river; this necessitates continuous dredging to keep it navigable. Here, this silt is clearly visible in the northern reaches of the gulf.
Also of note are rectangular areas of irrigated fields south of the Iranian city of Ahwaz. Ahwaz is built on the banks of the Karun River and is situated in the middle of Khūzestān Province.