A photo of the Congo River.

Dear Readers, Over the past three years Hydrology Corner has grown from a ground breaking blog on hydrology topics, to a multi-author source for cutting edge news, information, and opinions about hydrological best practices. Today, we are announcing an upgrade to our email subscription services to better serve a growing readership. This new system will offer: Better access to manage your subscription A redesigned look and feel...

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A photo of Todd River near Alice Springs.

In ‘The Other Extreme - Part 1: the Measurement of Absolutely Nothing’ I presented an argument that the difference between ‘exactly zero flow’, and ‘nowhere near enough water to generate flow’ can be important from a water resource management perspective. We rely on discharge data to inform us about water availability. This reliance is based on an assumption that discharge data represents information both about the hydrology...

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A photo of the Todd River Boat Race.

Most conversations about extreme measurements focus on flood flow. However, I recently had a conversation with Emily Huxter about her thesis research focused on understanding stream ephemerality through the characterization of timing, duration, and spatial distribution of zero flow. Sounds easy so far, after all I used to call these measurements ‘windshield measurements’ because I could do a zero flow measurement without getting out of the...

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A photo of Dave Gibley in Peru for World Water Day.

Water has provided me personally with some of the most amazing experiences of my life. As I sit here in Peru overlooking the ocean on World Water Day I can’t help but reflect on my own relationship with water and the experiences I had. I have always been drawn to water. I have always loved being in it and around it and have made my career...

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A photo of the Chicago River dyed green.

Everybody loves to celebrate St Partrick’s day: dressing in green; drinking green beer; and ever since 1961, dyeing the Chicago River green. That was the year the city began enforcing water pollution controls and green dye was used as a tracer to confirm the sources of illegal discharge. The effect the fluorescent dye on the river was noticed and somebody had the idea to commemorate St...

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A photo of an oil pipeline.

In a bold move, Marcia McNutt, the Editor-in-Chief of Science Magazine, one of the world’s top scientific journals, endorsed the Keystone XL pipeline late February1. The controversial pipeline, designed to transport heavy crude from Canada's oil sands to US Gulf coast refiners, has been mired in controversy over its potential ecological and climate impacts. McNutt, who headed a US federal agency until 2013 and was...

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