Roundup: The Glacier Compensation Effect, Amazon Fires Melt Andean Glaciers, and Australia’s Bushfires Accelerate Melt in New Zealand

Characterizing the Relation Between Interannual Streamflow Variability and Glacier Cover

A new study confirmed the theory that streamflow variability is dependent on relative glacier cover. From the abstract: “Meltwater from glaciers is not only a stable source of water but also affects downstream streamflow dynamics. One of these dynamics is the interannual variability of streamflow. Glaciers can moderate streamflow variability because the runoff in the glacierized part, driven by temperature, correlates negatively with the runoff in the non‐glacierized part of a catchment, driven by precipitation, thereby counterbalancing each other. This is also called the glacier compensation effect (GCE), and the effect is assumed to depend on relative glacier cover. Previous studies found a convex relationship between streamflow variability and glacier cover of different glacierized catchments, with lowest streamflow variability at a certain optimum glacier cover. In this study, we aim to revisit these previously found curves to find out if a universal relationship between interannual streamflow variability and glacier cover exists, which could potentially be used in a space‐for‐time substitution analysis.”

Read the study here.

Amazon Fires Quickening Glacier Melting in Andes

In a new paper published November 28, 2019, in the journal Scientific Reports, a team of researchers has outlined how smoke from fires in the Amazon in 2010 made glaciers in the Andes melt more quickly.

Read the story here.

The Zongo glacier is found on the slopes of Huayna Potosi, one of Bolivia’s highest mountains (Source: Ryan Michael Wilson/Shutterstock)

Soot From Australia Bushfires Settles on New Zealand Glaciers

On December 13, GlacierHub published “Bushfires in Australia Blanket New Zealand Glaciers in Soot.” Since then, the fires in Australia have continued to grow and their fallout is increasingly darkening the surface of glaciers in New Zealand. Media outlets including The New York Times, Washington Post, CNN, and The Guardian, among others, are reporting on the tragedy indirectly befalling New Zealand’s glaciers.

Read the story here.

On January 1, 2020, the Operational Land Imager (OLI) on Landsat 8 acquired a natural-color image (above) of thick smoke blanketing southeastern Australia along the border of Victoria and New South Wales (Source: NASA).

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