The Rivers of the Mississippi Watershed
The Mississippi Watershed is the largest drainage basin in North America at 3.2 million square kilometers in area. The USGS has created a database of this area which indicates the direction of waterflow at each point. By assembling these directions into streamflows, it is possible to trace the path of water from every point of the area to the mouth of the Mississippi in the Gulf of Mexico. This animation starts with the points furthest from the Gulf and reveals the streams and rivers as a steady progression towards the mouth of the Mississippi until all the major rivers are revealed. The speed of the reveal of the rivers is not dependent on the actual speed of the water flow. The reveal proceeds at a constant velocity along each river path, timed so that all reveals reach the mouth of the Mississippi at the same time.
This is the same animation as the previous one, except that the Missouri River is colored blue, the same as the Mississippi River. The animation starts with the reveal of a blue line at the headwaters of the Missouri River, at Brower's Spring near the Montana-Idaho border. The streamline from this point to the mouth of the Mississippi River is the longest streamline in the Mississippi watershed.
Three high resolution images of the MIssissippi watershed, one with all the rivers of the animation and the MIssississippi River in blue, and one with all the rivers of the animation and both the Mississippi and Missouri Rivers in blue, and one with no rivers indicated on the satellite image. If one of the images with rivers is laid over the image with no rivers, it is possible to identify and study the rivers on the bare satellite image of the Missippi watershed.
Please give credit for this item to:
NASA's Scientific Visualization Studio
- Horace Mitchell (NASA/GSFC) [Lead]
Datasets used in this visualization
Terra and Aqua BMNG (Blue Marble: Next Generation)ID: 508Collected with MODIS
Credit: The Blue Marble data is courtesy of Reto Stockli (NASA/GSFC).
This dataset can be found at: http://earthobservatory.nasa.gov/Newsroom/BlueMarble/See all pages that use this dataset
HYDRO1KID: 939Database USGS
HYDRO1k is a geographic database providing consistent global coverage of topographically derived data sets, including streams, drainage basins, and ancillary layers derived from GTOPO30.
Credit: U.S. Geological Survey EROS CenterSee all pages that use this dataset
Note: While we identify the data sets used in these visualizations, we do not store any further details, nor the data sets themselves on our site.