Group I contains parametres and Group II lists methods/instruments.
|
|
Group I |
|
Group II |
|
P |
Stream-flow velocity |
1 |
Anemometre |
|
Q |
Evapotranspiration rate |
2 |
Penman’s method |
|
R |
Infiltration rate |
3 |
Horton’s method |
|
S |
Wind velocity |
4 |
Current metre |
1
P – 1, Q – 2, R – 3, S – 4
2
P – 4, Q – 3, R – 2, S – 1
3
P – 4, Q – 2, R – 3, S – 1
4
P – 1, Q – 3, R – 2, S – 4