Geography Topographic maps

1. DRAINAGE &
SETTLEMENT
PATTERNS
By Jonathan k

2. Drainage Patterns
5 types of drainage patterns can be identified on a top-sheet
1.TRELLIS PATTERN / RECTANGULAR PATTERN
2. DENTRITIC PATTERN 3. PARALLEL PATTERN
4. RADIAL PATTERN & 5. DISAPPEARING PATTERN

3. TRELLIS PATTERN
TRIBUTARIES ARE SEEN MEETING THE MAIN STREAM
AT A RIGHT ANGLE.
THE DRAINAGE SYSTEM THAT THUS DEVELOPS
LOOKS SOMEWHAT RECTANGULAR.

4. DENDRITIC
PATTERN
THE MOST COMMON DRAINAGE PATTERN.
TRIBUTARIES COME FROM ALL DIRECTIONS TO MEET
THE MAIN RIVER. LOOKS SOMEWHAT LIKE TREE
BRANCHES.

5. PARALLEL PATTERN
MANY RIVERS RUN PARALLEL TO EACH OTHER.

6. RADIAL PATTERN
STREAMS DIVERGE FROM A CENTRAL HIGHER
POINT IN ALL DIRECTIONS.
ALSO CALLED AS CENTRIFUGAL PATTERN

7. DISAPPEARING
PATTERN
TRIBUTARIES DISAPPEAR INTO THE SOIL BEFORE
REACHING THE MAIN RIVER.
MOSTLY FOUND IN REGIONS OF LIMESTONE ROCKS.

8. SETLLEMENT
PATTERNS
4 MAIN TYPES OF SETTLEMENT PATTERNS
FOUND ON TOPO-SHEETS :
NUCLEATED, DISPERSED, LINEAR & RADIAL

9. NUCLEATED OR
COMPACT PATTERN
NUMBER OF HOUSES BUILT CLOSE TO ONE
ANOTHER

10. DISPERSED
PATTERN
ISOLATED SETTLEMENTS SCATTERED IN AN
AREA.
ALSO CALLED AS SCATTERED SETTLEMENT.

11. LINEAR PATTERN
DEVELOP ALONG ROADSIDES, RIVERS, CANALS OR A
RAILWAY LINE SO THAT EVERYONE CAN TAKE
ADVANTAGE.
FORM A RIBBON LIKE PATTERN.

12. RADIAL PATTERN
LANES OF HOUSES DIVERGE IN VARIOUS
DIRECTIONS FROM A COMMON POINT.

13. The End