Tag Archive for: sediment

An Extra Boost of Water is Flowing Into Grand Canyon After a Wet Winter

An extra pulse of water has been sent through the Grand Canyon this week. The Bureau of Reclamation is running a “high-flow experiment” at Glen Canyon Dam in northern Arizona, which means a big release of water designed to move and redeposit sand and sediment will make its way downstream from the dam. This experiment is the first since 2018, and comes in response to forecasts for an above average spring snowmelt in the Rocky Mountains.

World’s Lakes are Turning Green-Brown With Climate Change

A new study from the American Geophysical Union (AGU) finds that, if global warming persists, blue lakes worldwide are at risk of turning green-brown.

Shifts in lake water color can indicate a loss of ecosystem health. The study presents the first global inventory of lake color.

While substances such as algae and sediments can affect the color of lakes, the new study finds air temperature, precipitation, lake depth, and elevation also play important roles in determining a lake’s most common water color.

Climate Change May Bring Unexpected Benefits to San Francisco Bay-Delta

The San Francisco Bay-Delta is literally threatened from all sides: rising sea levels from the ocean, disruptions to sediment supply from upstream, and within the Bay-Delta itself, development and other land use changes have left only a tiny fraction (5%) of marshland untouched.