Why Do Rivers Have Deltas?

From the creator

Where rivers meet the ocean, coastlines tend to bend either inward or outward, creating estuaries and deltas. But how do they get those shapes? A huge thank-you to the following organizations, all working toward sustainable deltas, for sponsoring this video: the Belmont Forum, the Sustainable Deltas Initiative, the National Center for Earth-Surface Dynamics, the St Anthony Falls Laboratory of the University of Minnesota, and the DELTAS project. These organizations study deltas around the world, in particular how they’re threatened by human activities such as building dams, channelizing rivers, and climate change-induced sea-level rise. If we don’t pay attention, we might lose the landform that allowed us to become civilized in the first place. Thanks also to our Patreon patrons: - Today I Found Out - Jeff Straathof - Mark Roth - Maarten Bremer - Tony Fadell - Antoine Coeur - Nicholas Buckendorf - Alberto Bortoni - Valentin - Muhammad Shifaz ___________________________________________ Want to learn more about the topic in this week’s video? Here are some keywords/phrases to get your googling started: – delta: the piled-up sediment (typically triangular, or greek-letter-delta-shaped) deposited by a river as it flows into a larger body of water – estuary: a partially enclosed body of brackish (part salt, part fresh) water that connects one or more ocean-bound streams/rivers to the open sea. Geologists classify estuaries into four basic types (bar-built, coastal plain/drown

Published 2015-12-16 · Watch on YouTube ↗
Availability and playback restrictions are controlled by the original channel.