Small Farm Dam Research Repository

South West (Corangamite) Dam 3 SW 3

Summary

Location: Rokewood, Golden Plains Shire, Corangamite CMA

Primary Land use: Mixed farming, cropping and grazing
Australian Drainage Division: Southeast Coast (Division II)
Australian River Basin: Lake Corangamite (Basin 34)

Catchment Geology:
Miocene to Holocene Newer Volcanic Group: basalt flows (Neo), stony rises basalt (Neo2);
Pleistocene to Holocene alluvium: generic (Qa1)

Catchment Geomorphology:
6.0 Western Plains (Tier 1);
6.1 Volcanic Plains (Tier 2);
6.1.3 Plains with poorly developed drainage and shallow regolith (Tier 3)

Australian Soil Classification: Sodosol

Catchment Soils:

South West Dam 3 - Catchment Soils

About

Location	-37.96905,143.70809
Shape Profile	Custom
Maximum depth when full	3m
Current (or actual) water depth	1m
Water level offset	0.2m
Dam area	410m²
Maximum volume	479m³
Catchment area	791520.00m²

Water balance

The rating curve chart shows the volume of the dam in relation to vertical water level.
The water balance forecasts chart shows the predicted water level and volume for various climate scenarios from the starting water level.

Chart options

Maximum depth when full:

Current (or actual) water depth:

Household demand:

people

Stock demand:

cattle

Stock demand:

sheep

Climate estimates

Auto calculated variables

Dam area:

m²

Catchment area:

m²

Maximum volume when full:

m³

Shape profile:

Dam rating curve

Water balance forecasts

20 year monthly climate range

Month	Rainfall range				Evaporation range
	Decile 1	Decile 3	Decile 5	Decile 7	Decile 10	Decile 7	Decile 5	Decile 3
	Drought	Dry	Average	Wet	Drought	Dry	Average	Wet
January	1.4mm	17.8mm	21.8mm	46.5mm	251mm	214.8mm	205.6mm	185.4mm
February	0.8mm	5.6mm	18.9mm	26.6mm	186.5mm	170.8mm	162.5mm	157.4mm
March	1.3mm	20.7mm	25.6mm	40.5mm	171.4mm	148.7mm	129.2mm	121.7mm
April	10.3mm	18.9mm	29.8mm	48.5mm	96.7mm	87.3mm	78mm	72.1mm
May	7mm	29.7mm	37.5mm	50.1mm	71.8mm	55.6mm	50mm	44.3mm
June	9.4mm	27.4mm	43.7mm	68.9mm	42.5mm	36.2mm	33.8mm	32mm
July	22.2mm	37.3mm	45.2mm	54mm	51.5mm	42.8mm	39.7mm	37.3mm
August	16.7mm	31.2mm	47.5mm	55.6mm	73.2mm	57.4mm	54.4mm	52.1mm
September	21.2mm	35.9mm	39.9mm	55.6mm	100.3mm	88.8mm	86.9mm	78.3mm
October	5.8mm	30.7mm	37.7mm	68.1mm	163.4mm	129.2mm	118.9mm	110.1mm
November	18.4mm	40.2mm	47.9mm	62.5mm	172.1mm	155mm	145.7mm	130.9mm
December	6.3mm	25.5mm	30.4mm	41.5mm	235.7mm	190mm	177.8mm	171.1mm

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Rainfields3 comparison

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Climate history

20 year monthly climate range

Month	Rainfall range				Evaporation range
	Decile 1	Decile 3	Decile 5	Decile 7	Decile 10	Decile 7	Decile 5	Decile 3
	Drought	Dry	Average	Wet	Drought	Dry	Average	Wet
January	1.4mm	17.8mm	21.8mm	46.5mm	251mm	214.8mm	205.6mm	185.4mm
February	0.8mm	5.6mm	18.9mm	26.6mm	186.5mm	170.8mm	162.5mm	157.4mm
March	1.3mm	20.7mm	25.6mm	40.5mm	171.4mm	148.7mm	129.2mm	121.7mm
April	10.3mm	18.9mm	29.8mm	48.5mm	96.7mm	87.3mm	78mm	72.1mm
May	7mm	29.7mm	37.5mm	50.1mm	71.8mm	55.6mm	50mm	44.3mm
June	9.4mm	27.4mm	43.7mm	68.9mm	42.5mm	36.2mm	33.8mm	32mm
July	22.2mm	37.3mm	45.2mm	54mm	51.5mm	42.8mm	39.7mm	37.3mm
August	16.7mm	31.2mm	47.5mm	55.6mm	73.2mm	57.4mm	54.4mm	52.1mm
September	21.2mm	35.9mm	39.9mm	55.6mm	100.3mm	88.8mm	86.9mm	78.3mm
October	5.8mm	30.7mm	37.7mm	68.1mm	163.4mm	129.2mm	118.9mm	110.1mm
November	18.4mm	40.2mm	47.9mm	62.5mm	172.1mm	155mm	145.7mm	130.9mm
December	6.3mm	25.5mm	30.4mm	41.5mm	235.7mm	190mm	177.8mm	171.1mm