News archive - August 2020

Monday, August 24, 2020

ERG researcher publishes modeling videos to University of Waterloo Youtube Channel

Aquatic system modeling help video

Zahra Akbarzadeh of the Ecohydrology Research Group has created two supplemental videos that help students choose the right scale (dimension) for their model when answering research questions related to aquatic systems. These videos discuss 0, 1, 2, and 3-D models, review the criteria for choosing one scale over the other, and comparatively assess the suitability of each for generating the desired output.

Thursday, August 20, 2020

Ecohydrology Research Group’s Lake 227 study on sedimentary phosphorus burial featured as Research Spotlight in EOS

The recently published paper Changes in Sedimentary Phosphorus Burial Following Artificial Eutrophication of Lake 227, Experimental Lakes Area, Ontario, Canada published in Journal of Geophysical Research: Biogeosciences was selected as a Research Spotlight from the 22 peer-reviewed journals published by the American Geophysical Union (AGU).

Monday, August 3, 2020

New paper assesses how dams alter the ratios of macronutrients (nitrogen, phosphorus and silicon) delivered to the world’s oceans

The damming of rivers is one of the most impactful modifications of the flows of water and associated materials from land to sea. Included in these materials are nutrient elements like nitrogen and phosphorus, which are elements required by all life on Earth, and silicon, which is required by diatoms, the algae that account for the largest fraction of biological productivity of the oceans. Past studies have shown that changes in the ratios in which these nutrient elements enter the coastal oceans affect plankton communities, even causing harmful algal blooms or “red tides” to occur. In a new paper published in Geophysical Research Letters, (former) ERG researchers Taylor Maavara, Zahra Akbarzadeh and Philippe Van Cappellen use models of nitrogen, phosphorus, and silicon cycling in dam reservoirs to determine how the damming of rivers change the nutrient ratios delivered to coastal zones worldwide.

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