Chart of data from the precipitation spreadsheet. Areas with much higher elevation receive more precipitation, until around 1100 feet it becomes a cluster. Mount Mansfield is much higher than the rest of them in both elevation and precipitation. When calculating the annual average precipitation I used the average function on excel and received an answer of 42.15 inches per year.
Image of the Winooski drainage basin, along with the size (1060 square miles) and the average precipitation (45.6 inches) from https://streamstats.usgs.gov/ss/.
Question 4.
1 inch = 2.54 x 10^-5
I then multiplied 45.6 by 2.54 x 10^-5, this gave me 1.158 x 10^-3.
After this I had to convert 1060 square miles into square kilometers, the answer to this is 2745.4 square kilometers.
Now to get the full precipitation over this area I need to do the following equation (1.158x10^-3)(2745.4). The answer to this is 3.1798 km^3/yr.
Question 5.
I started this one by finding the USGS annual discharge data of the Winooski river. I averaged the data and got an answer of 1817.35 ft^3/second.
To solve the question I need to get this into km^3/yr. 1 ft^3= 2.832 x 10^-11
1817.35*(2.832x10^-11) = 5.1x10^-8.
Now I have to convert seconds to years. 1 second = 3.154x10^7
(5.1x10^-8)(3.154x10^7)=1.608 km^3/yr in discharge. Now to get the runoff I need to subtract the discharge out of the total amount of precipitation. 3.1798-1.608 = 1.5716.
1.5716/3.1798 = .49
.49*100 = 49% runoff
Question 6.
For the total volume of TDS I got 48.62 Mg/km^2yr
For suspended load I got a value of 48.17 Mg/km^2/yr.
Water that runs off and is not discharged into Lake Champlain could end up in a number of different places. Some water ends up in streams, groundwater, in vegetation, or other places. The amount of rainfall would likely never meet the amount of runoff unless the whole area was impervious to rain. There are many different things that could make that water "go missing".
The amount of dissolved sediment in the Cuba studies was much higher than the numbers from the Winooski River. I would assume this is because of different weathering in the rocks there, as compared to the rocks here. The fact that Cuba is in a tropical climate would also increase weathering. More weathering would mean more sediment travelling through the rivers.