The annual rainfall at the rain-gauge stations with the catchment area of 10km are indicated below. Thiessen polygon measured are also shown in the table below. Stations Recorded rainfall(P1)(cm) Area of polygon(ai)(km2) A 8.8 570 B 7.6 920 C 10.8 720 D 9.2 620 E 13.8 520 F 10.4 550 G 8.5 400 H 10.5 650 I 11.2 500 J 9.5 350 K 7.8 520 L 5.2 250 M 5.6 350 1. Describe mean rainfall over the area using Thiessen polygon method and Compare Thiessen polygon method with arithmetic mean method.
The annual rainfall at the rain-gauge stations with the catchment area of 10km are indicated below. Thiessen polygon measured are also shown in the table below. Stations Recorded rainfall(P1)(cm) Area of polygon(ai)(km2) A 8.8 570 B 7.6 920 C 10.8 720 D 9.2 620 E 13.8 520 F 10.4 550 G 8.5 400 H 10.5 650 I 11.2 500 J 9.5 350 K 7.8 520 L 5.2 250 M 5.6 350 1. Describe mean rainfall over the area using Thiessen polygon method and Compare Thiessen polygon method with arithmetic mean method.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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The annual rainfall at the rain-gauge stations with the catchment area of 10km are indicated below. Thiessen polygon measured are also shown in the table below.
Stations | Recorded rainfall(P1)(cm) | Area of polygon(ai)(km2) |
A | 8.8 | 570 |
B | 7.6 | 920 |
C | 10.8 | 720 |
D | 9.2 | 620 |
E | 13.8 | 520 |
F | 10.4 | 550 |
G | 8.5 | 400 |
H | 10.5 | 650 |
I | 11.2 | 500 |
J | 9.5 | 350 |
K | 7.8 | 520 |
L | 5.2 | 250 |
M | 5.6 | 350 |
1. Describe mean rainfall over the area using Thiessen polygon method and Compare Thiessen polygon method with arithmetic mean method.
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