Graphic of Selected Significant Climate Change Anomalies and Events worldwide.

Extreme drought in many regions of the world is creating an opportunity for many stream hydrographers to record a historic event. A report from Poland shows ‘no end of secrets’ being revealed by rivers as they dry up. July 2015 was the hottest month in recorded history. The Clausius Clapeyron relation tells us that the moisture holding capacity of the atmosphere is non-linear with temperature. Over...

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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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