Roundup: Glacier Lakes, Crevasses and Laws

Each week, we highlight three stories from the forefront of glacier news.

Decreasing Diversity in Glacier Lakes

Glacier lake
Glacier lake (Photo: Flickr)

From Universität Innsbruck:

“Professor Ruben Sommaruga from the Institute of Ecology, and Hannes Peter from the research group Lake and Glacier Ecology have studied shifts in diversity during the transition from turbid glacial to clear mountain lakes and now report on their surprising findings. Their research work has been published in the Nature Publishing Group’s journal ISME Journal.”

 

Learn more about the research here.

Glacier Crevasses: Observations, Models, and Mass Balance Implications

huge crevesse on the fitzsimmons glacier
huge crevasses on the fitzsimmons glacier (Photo: Flickr)

From AGU publications:

“We review the findings of approximately 60 years of in situ and remote sensing studies of glacier crevasses, as well as the three broad classes of numerical models now employed to simulate crevasse fracture. The relatively new insight that mixed-mode fracture in local stress equilibrium, rather than downstream advection alone, can introduce nontrivial curvature to crevasse geometry may merit the reinterpretation of some key historical observation studies. In the past three decades, there have been tremendous advances in the spatial resolution of satellite imagery, as well as fully automated algorithms capable of tracking crevasse displacements between repeat images.”

Read more about Glacier Crevasses here.

Defending Glaciers in Argentina

Glaciers in Argentina
Glaciers in Argentina

From Taylor & Francis Online:

“Constitutional law has been utilized in many countries to promote the protection of environmental rights, with varying degrees of success. This essay offers gold mining in Argentina as a case study for examination of the tensions that exist between economic interests and the need to protect the environment, notwithstanding the provisions made for environmental rights within the National Constitution. Due to the significance of the country’s glacier region, the Argentine public has resisted mining developments that threaten this natural resource by taking a multipronged approach.”

Read more about Argentina’s law to protect glaciers here.

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