Great Lakes currents map

Posted to Maps  |  Tags: ,  |  Nathan Yau

Using the same tech Martin Wattenberg and Fernanda Viegas created to show wind flow, the NOAA Great Lakes Environmental Research Laboratory mapped water flow in the Great Lakes, based on forecasting simulations.

The “Latest” and “3hrs Previous” visualizations depict water motion corresponding to a snapshot of lake currents at the present time and three hours previous to the present time. Lake currents can change rapidly with changing wind conditions.

Surface currents tend to follow the wind direction more closely than currents at depth. Depth-averaged currents represent the average water motion from surface to bottom and tend to follow shoreline and bottom contours.

The default map is semi-live, but you can also see flows for previous months. For example, the patterns during February 2011 are kinda cool, with a lot of swirling and well-defined currents.

2 Comments

Favorites

This is an American Workday, By Occupation

I simulated a day for employed Americans to see when and where they work.

The Best Data Visualization Projects of 2014

It’s always tough to pick my favorite visualization projects. Nevertheless, I gave it a go.

The Most Unisex Names in US History

Moving on from the most trendy names in US history, let’s look at the most unisex ones. Some names have …

Where Bars Outnumber Grocery Stores

A closer look at the age old question of where there are more bars than grocery stores, and vice versa.