Contents
How to study the Mississippi River in ArcGIS?
Choose File > Open, navigate to C:/eyesinthesky2/week6/LouisanaAM2, select the LA_Rivers.mxd file, and click Open. A map of Louisiana is displayed when the project opens. Parishes are shown in tan and the Mississippi River is blue. Turn on the Louisiana Parishes layer. Right click on the layer name to open the Properties window.
How can I find Pointe Coupee in ArcGIS?
Click on the Find tool. Select Louisiana Parishes from the In pull down box. Type in Pointe Coupee in the Find box. Right click the correct entry from the list in the box at the bottom of the Find window. Click on Select to hightlight Point Coupee in blue on the map. Move your Find window without closing it to view your map.
How do you measure the distance of a river?
Measuring with ArcGIS To measure, click on the Measure tool in the toolbar. Click on the drop-down menu arrow, choose the Distance, Meters option for the measuring units. On the Satellite image, click and drag perpendicularly across the river from one side to another on a section of river of your choosing.
How to measure the width of the Mississippi River?
On the la_lndsat7.tif satellite image of the river, measure the width of the Mississippi River in 3 locations. You will need to zoom and pan around on the image to find locations to measure. Record the data on a piece of paper or a data table.
How to zoom in on Point Coupee in ArcGIS?
Click on Select to hightlight Point Coupee in blue on the map. Move your Find window without closing it to view your map. Right click again Pointe Coupee list in the box at the bottom of the Find window. Click on Zoom To to zoom into the parish of Point Coupee. Your map will look like this. Turn off the US States layer.
How to make a layer transparent in ArcGIS?
Turn on the Louisiana Parishes layer. Right click on the layer name to open the Properties window. Make the Louisiana Parishes layer transparent, by giving it No Color fill. Label the Louisiana Parishes layer with the NAME of the parishes. Turn on the Louisiana Parishes. Right click on the layer name to open the Properties window.
What causes a meandering river to become an oxbow lake?
Meanders that grow close enough to close the loop form a cutoff, which deprives the meander from water current. This deprivation of current causes the ends of the meander to fill with silt, eventually becoming an oxbow lake. In this investigation you will explore the patterns left behind by rivers and their meanders.
Why are rivers always changing in their course?
Rivers are constantly changing their course, meandering through time and space, forming new features and erasing old ones. Meander amplitudes get wider because the soil erosion carrying capacity increases with the width of the river.
Why does a meandering river have a wider amplitude?
Meander amplitudes get wider because the soil erosion carrying capacity increases with the width of the river. As in any process, the random places where the water is able to travel faster start eroding more material causing meanders to grow toward the side of the river that is moving faster and eroding.