Average Precipitation

y=76.632x-2326.1

x=(y+2326.1)/76.632=(1600+2326.1)/76.632= 51.2 in= 1.3m Precipitation

Volume of Precipitation

1044 square miles=2704 square kilometers

2704 km^2 x .0013 km= 3.52 km^3

Average annual discharge

1817ft^3/s x 3.154s/year 5.731E10 ft^3/year

5.731E10 ft^3/year x 2.832E-11km^3= 1.623km^3

Percent runoff

1.623/3.52 (x100)= 46.1%

Average Suspended Load

81 mg/L x (1.623Km^3/year x 1E12 L/Km^3)=

1.31E14mg/year x (1Mg/1E9mg)=131,000Mg

131,000Mg/2704km^2= 48Mg/km^2

Average Dissolved Load

73.5 mg/L x (1.623Km^3/year x 1E12 L/Km^3)=

1.19E14mg/year x (1Mg/1E9mg)=119,000Mg

119,000Mg/2704Km^2=44Mg/km^2

Rainfall will always be higher than runoff because water is goes through other processes in between the source and sink at the mouth of the river. Trees and forests suck up a huge amount of the rainfall before is can reach the Winooski River. Much of this water is stored in the trees but much of it is also lost to the environment through transpiration, or water lost as vapor through leaves. Water is also removed from from the river for human purposes such as agriculture. This water ends up in agricultural products and evaporating in the irrigation process. While this water does not reach the lake, it is essential for all ecosystem processes.

While the total dissolved solids and total suspended solids appear to be relatively similar in magnitude, the lack and inconsistency of data makes this hard to predict. For suspended solids there were only five data points, four of which were between 8 and 20 and one of which was 347, greatly changing the mean value. By looking at the total tonnage compared to area, 92 tons of mass runoff of each square kilometer every year. Based on the map and graph of TDS in the Cuban watersheds, the TDS appears to be around 400mg/L as opposed to 73.5mg/L in the Winooski Basin. Vermont’s glacial history and recent anthropogenic history may lead to lower erosion than Cuba. The Laurentide ice sheet aggressively scoured the bedrock, leaving only harder rocks compared to Cuba’s erodible volcanic and marine rocks. Additionally, while Vermont is reforesting after devastating deforestation and erosion of the 19th century, Cuba is still largely deforested and agricultural.