Friday, April 25, 2008
Got Flooding?
Yesterday and last night we experienced heavy rain in the Cedar Valley. 4.71 inches of rain fell in the past 24 hours. As a consequence Dry Run Creek just south of the school left it's banks. How could we use GPS, GIS or other technologies to help us map the highest level of the flooding? What do we need to consider? How can we apply what we have learned in class to better understand the flood waters and their behaviors?
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We should mark a lot of way points along the overflowed area.We could also mark more points later in the day and make a map that shows the receding pattern of the water.
I think that we should mark a way point along the creek in a few places and mark where the water was at the highest point and then wait for the water to recede and then mark it at the normal level. To find the highest point we could look at where the debris is on the banks or on the street. We would use our knowledge of our GPS systems to mark waypoints and find distances and elevations between the two points.
I think that we should mark waypoints along the area where the water overflowed out of the creek. We could mark points on both sides of the creek where it overflowed. Then we could mark the points where the creek actually is, and make a map of this data.
To show how far the water was out of the banks of the creek, we should mark way points throughout the day and see how the creek recedes. we can also take the elevation levels at this time too at these different points.
i think that we should mark points that at different levels of the flooding. we should mark a line of points that are for x inches then another line that is y inches and so on. this would make it so that we can make a map to show where and how much water is is in a certain place
Kasha
we could use the GPS to mark points along the stream to know how far out the water went, and when it returns to normal mark that point and measure the area.
I think first we should take a look at the creek and notice where all the sticks and other junk is. You can tell how high the creek has been by all the sticks and junk in the trees, how high it is. We could also mark the way point on the estimated guess on how high it is then mark the way point at what the creek is now.
We could mark the points where the creek was at its highest and find that by looking where debris is. The you could wait for the water to recede to its normal level and mark that location.Then we could use the GPS to find the distance and elevation differences from the creek 's highest point to its normal level.
first you could look at the water and look at all the junk in the trees and other things in the trees or the junk on the street. thats one way you could figure out how high the water was. You could also mark way points from the start of the creek to the end of the creek. and also do it other times of the day to see if it starts to go down.
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