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

Where People Run in Major Cities

There are many exercise apps that allow you to keep track of your running, riding, and other activities. Record speed, …

19 Maps That Will Blow Your Mind and Change the Way You See the World. Top All-time. You Won’t Believe Your Eyes. Watch.

Many lists of maps promise to change the way you see the world, but this one actually does.

Jobs Charted by State and Salary

Jobs and pay can vary a lot depending on where you live, based on 2013 data from the Bureau of Labor Statistics. Here’s an interactive to look.

Interactive: When Do Americans Leave For Work?

We don’t all start our work days at the same time, despite what morning rush hour might have you think.