Skills - Sources of Data (Primary/Secondary)

Question 1

Primary

What

Answer 1

GEOMETRY

VELOCITY

SHAPE/SIZE (secondary combo)

Question 2

Primary

GEOMETRY

Method

Answer 2

Width - long tape measure

Wetted perimeter - long tape measure (stood on) - inaccurate/unreliable

Depth - 6 along width (linear systematic)

Question 3

Primary

VELOCITY

Method

Answer 3

Impellar (3 times along width)

|_> linear systematic

Question 4

Primary

SEDIMENT SIZE/SHAPE

Methods

BUT what???

Answer 4

6 taken across width (where depth rule touched)
|_> linear systematic

Use of power index (SECONDARY)

Question 5

Primary

Definition

Answer 5

Data collected in field

|_> not processed/analysed

Question 6

Secondary

Definition

Answer 6

Been processed before

Question 7

Secondary

OS Maps

Met Office

What stage

Answer 7

Planning stage

Distance between fieldwork sites

1:25000 (pathfinder) -> shows boundaries

Question 8

Secondary

GRADIENT

Methods

Alternative??

Answer 8

Automated level (staff expertise)
|_> provided by N.combe

Could do PRIMARY (clinometers) but less reliable

Question 9

Secondary

FORMULAIC METHODS BASED

examples

Answer 9

Hydraulis Radius - (x-section/wet. Perimeter)

Velocity (distance/time)