Figure A4-1 shows the variations in the daily discharge during 1957 for the Elah

Question

Figure A4-1 shows the variations in the daily discharge during 1957 for the Elaho River, north of Squamish, BC. Discuss the origins of the variations in discharge over the year by focussing on the following: (a) the long period of low discharge in January, February, and March, (b) the increasing flows in early spring, and (c) the pronounced high flows in late September, November, and December The Elaho River is a popular destination for white-water kayaking. Based on the information in the graph, which month should you pick if you want to maximize the likelihood of high discharges and lots of white water? 700 Daily discharge on the Elaho River near Squamish 600 (data for 1957, from Water Services Canada) 500 400 300 200 100 Jan |Feb Mar | AprMay | JunJAug Sep | Oct Nov|Dec © Steven Earle. Data Source: Environment Canada http://wateroffice.ec.gc.ca/report/report_e.html?t ype-h2oArc&stn-08GA041; Figure A4-1. Daily flows on the Elaho River during 1957

Explanation / Answer

elaho river originates from the elaho glacier. as we can see that starting months of year january february and march has a low discharge . we know that river discharge having a source of water from rain water, ground water, precipitation, surface eun off and other tributeris.

in first three months elaho river has low discharge , these months are considered as a winter months . in winter temperature is low thats why all direct sources of elaho river like springs and glacies has been freeze out and because of low temperature evaporation process intensity also decreased. so resultant discharge of elaho river is also decreased in these months.

flow incresed in early springs becaouse in the springs faced a lot of rain thats why discahrge in elaho river has been increased.

high flows in last months, in BC summer are short but hotter , temperature reached aroud 30 c in the summer so because of temperature increase glacier and other springs and tributeries melted and flows into elaho river . and summer also faced rain, so these factors makes these months high flows season.

Related Questions

Navigate

• Browse (All)
• Browse F
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.