This image indicates the different salinity zones of the Rio de la Plata estuary.  The water is considered fresh at the city of Buenos Aires.  However, during sudestada weather events southeasterly winds push a wall of ocean water up the estuary, backing up the rivers and flooding saltwater into the waterways.

This image indicates the different salinity zones of the Rio de la Plata estuary.  The water is considered fresh at the city of Buenos Aires.  However, during sudestada weather events southeasterly winds push a wall of ocean water up the estuary, backing up the rivers and flooding saltwater into the waterways.

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This image indicates the different salinity zones of the Rio de la Plata estuary.  The water is considered fresh at the city of Buenos Aires.  However, during sudestada weather events southeasterly winds push a wall of ocean water up the estuary, backing up the rivers and flooding saltwater into the waterways.

This image indicates the different salinity zones of the Rio de la Plata estuary.  The water is considered fresh at the city of Buenos Aires.  However, during sudestada weather events southeasterly winds push a wall of ocean water up the estuary, backing up the rivers and flooding saltwater into the waterways.

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take a park. excavate a ragged trench in the middle of the pretty lawn. the rocks and pipes and mud that's left and the backhoe ripping in to them? that is landscape instrumentalism.