A. At the streamgage 05405000 Baraboo River at Baraboo, approximately how long (

Question

A. At the streamgage 05405000 Baraboo River at Baraboo, approximately how long (in days) was the flow substantially higher than normal in the main flood event?

Number of days:  

B. For that same streamgage, there was a second, smaller flood event starting on July 11th. How big was the peak discharge during that second event compared to the first event? Express as a percentage.

05405000 Baraboo River at Baraboo 30,000 F 05408000 Kickapoo River at La Farge 05410490 Kickapoo River at Steuben 054260000 Crawfish River at Milford 05427570 Rock River at Indianford 25,000 -05430500 Rock River at Afton 20,000 15,000 10,000 5,000 6/1/08 6/11/08 6/21/08 7/1/08 7/11/08 7/21/08 7/31/08

Explanation / Answer

A. It seems that the 1st flood event was approximately 16 days long.

It was started on 6/5/08 and ended nearly on 6/21/08.

B. It can be seen from the map that the peak discharge reached 18000 cubic feet/sec in the 1st flood event whereas in the 2nd event it reached up to 5000 cubic feet/sec.

So the difference in discharge is 18000-5000= 13000

Now, to calculate the percentage 13000 / 5000 *1000 = 260 %

So the peak discharge during the 2nd event was 260% big compared to the 1st event.

Hope this will help you.

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