Results | ARR Data Hub

Australian Rainfall & Runoff Data Hub - Results

Input Data

Selected Regions (clear)
Longitude	152.648
Latitude	-29.573
River Region	show
ARF Parameters	show
Storm Losses	show
Temporal Patterns	show
Areal Temporal Patterns	show
BOM IFDs	show
Median Preburst Depths and Ratios	show
10% Preburst Depths	show
25% Preburst Depths	show
75% Preburst Depths	show
90% Preburst Depths	show
Climate Change Factors	show
Probability Neutral Burst Initial Loss	show

Data

River Region

Division	South East Coast (NSW)
River Number	4
River Name	Clarence River

Layer Info

Time Accessed	02 April 2026 05:35PM
Version	2016_v1

ARF Parameters

A R F = M i n {1, [1 - a (A r e a^{b} - c \log_{10} D u r a t i o n) D u r a t i o n^{- d} + e A r e a^{f} D u r a t i o n^{g} (0.3 + \log_{10} A E P) + h 10^{i A r e a \frac{D u r a t i o n}{1440}} (0.3 + \log_{10} A E P)]}

Zone	a	b	c	d	e	f	g	h	i
East Coast North	0.327	0.241	0.448	0.36	0.00096	0.48	-0.21	0.012	-0.0013

Short Duration ARF

A R F = M i n [1, 1 - 0.287 (A r e a^{0.265} - 0.439 \log_{10} (D u r a t i o n)) . D u r a t i o n^{- 0.36} + 2.26 {x 10}^{- 3} x A r e a^{0.226} . D u r a t i o n^{0.125} (0.3 + \log_{10} (A E P)) + 0.0141 x A r e a^{0.213} x 10^{- 0.021 \frac{{(D u r a t i o n - 180)}^{2}}{1440}} (0.3 + \log_{10} (A E P))]

Layer Info

Time Accessed	02 April 2026 05:35PM
Version	2016_v1

Storm Losses

Note: Burst Loss = Storm Loss - Preburst

Note: These losses are only for rural use and are NOT FOR DIRECT USE in urban areas

Note: As this point is in NSW the advice provided on losses and pre-burst on the NSW Specific Tab of the ARR Data Hub is to be considered. In NSW losses are derived considering a hierarchy of approaches depending on the available loss information. The continuing storm loss information from the ARR Datahub provided below should only be used where relevant under the loss hierarchy (level 5) and where used is to be multiplied by the factor of 0.4.

ID	20172.0
Storm Initial Losses (mm)	66.0
Storm Continuing Losses (mm/h)	4.4

Layer Info

Time Accessed	02 April 2026 05:35PM
Version	2016_v1

Temporal Patterns | Download (.zip)

code	ECsouth
Label	East Coast South

Layer Info

Time Accessed	02 April 2026 05:35PM
Version	2016_v2

Areal Temporal Patterns | Download (.zip)

code	ECsouth
arealabel	East Coast South

Layer Info

Time Accessed	02 April 2026 05:35PM
Version	2016_v2

BOM IFDs

Click here to obtain the IFD depths for catchment centroid from the BoM website

Layer Info

Time Accessed

02 April 2026 05:35PM

Median Preburst Depths and Ratios

Values are of the format depth (ratio) with depth in mm

min (h)\AEP(%)	50	20	10	5	2	1
60 (1.0)	1.8 (0.057)	1.9 (0.044)	1.9 (0.039)	1.9 (0.034)	1.8 (0.027)	1.7 (0.022)
90 (1.5)	0.4 (0.011)	0.6 (0.014)	0.8 (0.015)	1.0 (0.015)	2.6 (0.034)	3.8 (0.045)
120 (2.0)	0.2 (0.005)	0.6 (0.013)	1.0 (0.016)	1.2 (0.018)	5.6 (0.068)	8.9 (0.095)
180 (3.0)	0.3 (0.008)	0.9 (0.016)	1.4 (0.020)	1.7 (0.022)	11.4 (0.118)	18.7 (0.170)
360 (6.0)	1.3 (0.023)	9.9 (0.131)	15.6 (0.171)	21.0 (0.197)	39.2 (0.304)	52.9 (0.358)
720 (12.0)	2.9 (0.040)	20.6 (0.201)	32.4 (0.260)	43.6 (0.295)	48.9 (0.271)	52.9 (0.256)
1080 (18.0)	2.0 (0.023)	11.2 (0.091)	17.4 (0.114)	23.2 (0.129)	34.7 (0.157)	43.3 (0.171)
1440 (24.0)	3.6 (0.036)	10.2 (0.072)	14.6 (0.084)	18.8 (0.091)	27.2 (0.107)	33.5 (0.115)
2160 (36.0)	0.0 (0.000)	5.5 (0.032)	9.2 (0.044)	12.7 (0.051)	20.5 (0.068)	26.3 (0.076)
2880 (48.0)	0.1 (0.001)	3.2 (0.017)	5.3 (0.022)	7.3 (0.026)	11.6 (0.034)	14.9 (0.038)
4320 (72.0)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	1.2 (0.003)	2.2 (0.005)

Layer Info

Time Accessed	02 April 2026 05:35PM
Version	2018_v1
Note	Preburst interpolation methods for catchment wide preburst has been slightly altered. Point values remain unchanged.

10% Preburst Depths

Values are of the format depth (ratio) with depth in mm

min (h)\AEP(%)	50	20	10	5	2	1
60 (1.0)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)
90 (1.5)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)
120 (2.0)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)
180 (3.0)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)
360 (6.0)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)
720 (12.0)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)
1080 (18.0)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)
1440 (24.0)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)
2160 (36.0)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)
2880 (48.0)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)
4320 (72.0)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)

Layer Info

Time Accessed	02 April 2026 05:35PM
Version	2018_v1
Note	Preburst interpolation methods for catchment wide preburst has been slightly altered. Point values remain unchanged.

25% Preburst Depths

Values are of the format depth (ratio) with depth in mm

min (h)\AEP(%)	50	20	10	5	2	1
60 (1.0)	0.2 (0.006)	0.2 (0.004)	0.2 (0.003)	0.2 (0.003)	0.1 (0.001)	0.0 (0.000)
90 (1.5)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)
120 (2.0)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)
180 (3.0)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.1 (0.001)	0.2 (0.002)
360 (6.0)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	4.5 (0.035)	7.8 (0.053)
720 (12.0)	0.0 (0.000)	2.5 (0.025)	4.2 (0.034)	5.8 (0.040)	9.5 (0.053)	12.2 (0.059)
1080 (18.0)	0.0 (0.000)	1.2 (0.010)	2.0 (0.013)	2.8 (0.015)	6.3 (0.029)	9.0 (0.036)
1440 (24.0)	0.0 (0.000)	0.1 (0.000)	0.1 (0.001)	0.2 (0.001)	3.4 (0.013)	5.8 (0.020)
2160 (36.0)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.3 (0.001)	0.6 (0.002)
2880 (48.0)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.6 (0.002)	1.0 (0.003)
4320 (72.0)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)	0.0 (0.000)

Layer Info

Time Accessed	02 April 2026 05:35PM
Version	2018_v1
Note	Preburst interpolation methods for catchment wide preburst has been slightly altered. Point values remain unchanged.

75% Preburst Depths

Values are of the format depth (ratio) with depth in mm

min (h)\AEP(%)	50	20	10	5	2	1
60 (1.0)	16.6 (0.524)	15.4 (0.370)	14.7 (0.300)	13.9 (0.248)	16.0 (0.242)	17.6 (0.236)
90 (1.5)	8.8 (0.247)	12.4 (0.263)	14.8 (0.267)	17.0 (0.267)	27.9 (0.370)	36.1 (0.424)
120 (2.0)	4.6 (0.119)	16.4 (0.319)	24.2 (0.400)	31.7 (0.453)	46.0 (0.553)	56.7 (0.602)
180 (3.0)	17.0 (0.387)	24.9 (0.426)	30.2 (0.435)	35.2 (0.437)	65.6 (0.680)	88.4 (0.807)
360 (6.0)	21.0 (0.380)	40.6 (0.536)	53.5 (0.589)	65.9 (0.618)	108.4 (0.839)	140.3 (0.950)
720 (12.0)	25.3 (0.349)	53.5 (0.522)	72.1 (0.579)	90.0 (0.609)	101.4 (0.563)	110.0 (0.532)
1080 (18.0)	30.5 (0.352)	44.2 (0.356)	53.2 (0.351)	61.9 (0.343)	81.6 (0.370)	96.3 (0.381)
1440 (24.0)	27.5 (0.279)	41.8 (0.294)	51.2 (0.294)	60.3 (0.291)	79.1 (0.312)	93.1 (0.321)
2160 (36.0)	12.2 (0.104)	26.1 (0.152)	35.2 (0.168)	44.0 (0.177)	55.1 (0.181)	63.4 (0.183)
2880 (48.0)	10.4 (0.078)	21.0 (0.109)	28.0 (0.118)	34.7 (0.124)	51.0 (0.150)	63.3 (0.163)
4320 (72.0)	0.3 (0.002)	7.6 (0.034)	12.4 (0.045)	17.0 (0.053)	38.8 (0.100)	55.1 (0.125)

Layer Info

Time Accessed	02 April 2026 05:35PM
Version	2018_v1
Note	Preburst interpolation methods for catchment wide preburst has been slightly altered. Point values remain unchanged.

90% Preburst Depths

Values are of the format depth (ratio) with depth in mm

min (h)\AEP(%)	50	20	10	5	2	1
60 (1.0)	52.3 (1.653)	57.1 (1.370)	60.3 (1.234)	63.4 (1.129)	99.9 (1.505)	127.2 (1.707)
90 (1.5)	50.1 (1.405)	52.0 (1.105)	53.2 (0.963)	54.4 (0.854)	86.0 (1.138)	109.7 (1.288)
120 (2.0)	55.1 (1.418)	78.6 (1.531)	94.2 (1.558)	109.2 (1.562)	172.9 (2.077)	220.7 (2.344)
180 (3.0)	58.4 (1.330)	86.3 (1.475)	104.8 (1.513)	122.6 (1.523)	195.7 (2.029)	250.5 (2.286)
360 (6.0)	83.7 (1.513)	107.2 (1.416)	122.7 (1.352)	137.7 (1.290)	184.5 (1.429)	219.6 (1.487)
720 (12.0)	60.7 (0.836)	111.8 (1.091)	145.7 (1.169)	178.1 (1.205)	182.4 (1.012)	185.5 (0.897)
1080 (18.0)	76.7 (0.886)	98.9 (0.798)	113.6 (0.749)	127.8 (0.708)	165.3 (0.750)	193.4 (0.765)
1440 (24.0)	75.6 (0.768)	98.6 (0.694)	113.8 (0.654)	128.5 (0.619)	152.9 (0.604)	171.1 (0.590)
2160 (36.0)	61.9 (0.526)	88.3 (0.516)	105.7 (0.505)	122.5 (0.491)	119.3 (0.393)	116.8 (0.337)
2880 (48.0)	45.1 (0.339)	69.6 (0.360)	85.8 (0.363)	101.4 (0.362)	114.3 (0.336)	123.9 (0.319)
4320 (72.0)	26.9 (0.174)	42.5 (0.190)	52.9 (0.194)	62.8 (0.195)	90.1 (0.232)	110.5 (0.250)

Layer Info

Time Accessed	02 April 2026 05:35PM
Version	2018_v1
Note	Preburst interpolation methods for catchment wide preburst has been slightly altered. Point values remain unchanged.

Climate Change Factors

Rainfall Factors

SSP1-2.6

Year	<1 hour	1.5 Hours	2 Hours	3 Hours	4.5 Hours	6 Hours	9 Hours	12 Hours	18 Hours	>24 Hours
2030	1.18	1.17	1.16	1.14	1.13	1.12	1.12	1.11	1.1	1.1
2040	1.21	1.19	1.17	1.16	1.15	1.14	1.13	1.12	1.11	1.11
2050	1.22	1.2	1.18	1.17	1.15	1.15	1.14	1.13	1.12	1.11
2060	1.23	1.21	1.2	1.18	1.17	1.16	1.15	1.14	1.13	1.12
2070	1.24	1.22	1.2	1.18	1.17	1.16	1.15	1.14	1.13	1.12
2080	1.23	1.21	1.2	1.18	1.17	1.16	1.15	1.14	1.13	1.12
2090	1.23	1.21	1.2	1.18	1.17	1.16	1.15	1.14	1.13	1.12
2100	1.22	1.2	1.19	1.17	1.16	1.15	1.14	1.13	1.12	1.12

SSP2-4.5

Year	<1 hour	1.5 Hours	2 Hours	3 Hours	4.5 Hours	6 Hours	9 Hours	12 Hours	18 Hours	>24 Hours
2030	1.18	1.17	1.16	1.14	1.13	1.12	1.12	1.11	1.1	1.1
2040	1.22	1.2	1.19	1.17	1.16	1.15	1.14	1.13	1.12	1.12
2050	1.27	1.24	1.23	1.21	1.19	1.18	1.17	1.16	1.15	1.14
2060	1.3	1.27	1.25	1.23	1.21	1.2	1.19	1.18	1.16	1.16
2070	1.33	1.3	1.28	1.26	1.24	1.22	1.21	1.19	1.18	1.17
2080	1.37	1.33	1.31	1.28	1.26	1.24	1.22	1.21	1.2	1.19
2090	1.4	1.36	1.34	1.31	1.28	1.26	1.24	1.23	1.21	1.2
2100	1.41	1.37	1.35	1.32	1.29	1.27	1.25	1.24	1.22	1.21

SSP3-7.0

Year	<1 hour	1.5 Hours	2 Hours	3 Hours	4.5 Hours	6 Hours	9 Hours	12 Hours	18 Hours	>24 Hours
2030	1.18	1.17	1.16	1.14	1.13	1.12	1.12	1.11	1.1	1.1
2040	1.23	1.21	1.2	1.18	1.17	1.16	1.15	1.14	1.13	1.12
2050	1.29	1.26	1.24	1.22	1.2	1.19	1.18	1.17	1.16	1.15
2060	1.35	1.32	1.3	1.27	1.25	1.23	1.22	1.2	1.19	1.18
2070	1.42	1.38	1.35	1.32	1.29	1.28	1.26	1.24	1.22	1.21
2080	1.5	1.45	1.42	1.38	1.35	1.33	1.3	1.28	1.26	1.25
2090	1.59	1.53	1.49	1.44	1.4	1.38	1.35	1.33	1.3	1.29
2100	1.66	1.59	1.55	1.5	1.45	1.42	1.39	1.37	1.34	1.32

SSP5-8.5

Year	<1 hour	1.5 Hours	2 Hours	3 Hours	4.5 Hours	6 Hours	9 Hours	12 Hours	18 Hours	>24 Hours
2030	1.2	1.18	1.17	1.16	1.14	1.13	1.13	1.12	1.11	1.11
2040	1.26	1.24	1.22	1.2	1.18	1.17	1.16	1.15	1.14	1.14
2050	1.34	1.31	1.29	1.26	1.24	1.23	1.21	1.2	1.18	1.18
2060	1.42	1.38	1.35	1.32	1.29	1.28	1.26	1.24	1.22	1.21
2070	1.52	1.47	1.43	1.4	1.36	1.34	1.31	1.29	1.27	1.26
2080	1.63	1.57	1.52	1.48	1.43	1.4	1.37	1.35	1.33	1.31
2090	1.77	1.69	1.64	1.58	1.52	1.49	1.45	1.42	1.39	1.37
2100	1.86	1.77	1.71	1.64	1.58	1.54	1.5	1.47	1.43	1.41

Loss Factors

Initial Loss (Adjustment Factors)

	Losses SSP1-2.6	Losses SSP2-4.5	Losses SSP3-7.0	Losses SSP5-8.5
2030	1.02	1.02	1.02	1.03
2040	1.03	1.03	1.03	1.03
2050	1.03	1.03	1.04	1.04
2060	1.03	1.04	1.04	1.05
2070	1.03	1.04	1.05	1.06
2080	1.03	1.05	1.06	1.07
2090	1.03	1.05	1.07	1.08
2100	1.03	1.05	1.07	1.09

Continuing Loss (Adjustment Factors)

	Losses SSP1-2.6	Losses SSP2-4.5	Losses SSP3-7.0	Losses SSP5-8.5
2030	1.04	1.05	1.05	1.05
2040	1.05	1.05	1.06	1.06
2050	1.06	1.06	1.07	1.08
2060	1.06	1.07	1.08	1.1
2070	1.06	1.08	1.1	1.12
2080	1.06	1.09	1.11	1.14
2090	1.06	1.09	1.13	1.16
2100	1.06	1.1	1.14	1.18

Temperature Changes (Degrees, Relative to 1961-1990 Baseline)

Year	SSP1-2.6	SSP2-4.5	SSP3-7.0	SSP5-8.5
2030	1.2	1.2	1.2	1.3
2040	1.3	1.4	1.5	1.6
2050	1.4	1.7	1.8	2.1
2060	1.5	1.9	2.2	2.5
2070	1.5	2.1	2.5	3
2080	1.5	2.2	2.9	3.5
2090	1.5	2.4	3.3	4.1
2100	1.4	2.5	3.6	4.5

Layer Info

Time Accessed	02 April 2026 05:35PM
Version	2024_v1
Note	Updated climate change factors for IFD Initial loss and continuing loss based on IPCC AR6 temperature increases from the updated Climate Change Considerations (Book 1: Chapter 6) in ARR (Version 4.2). ARR recomends the use of Current and near-term (2030 midpoint). Medium-term (2050 midpoint) and Long-term (2090 midpoint)

Probability Neutral Burst Initial Loss

min (h)\AEP(%)	50.0	20.0	10.0	5.0	2.0	1.0
60 (1.0)	31.6	26.8	21.1	20.0	19.8	13.8
90 (1.5)	35.8	29.3	23.9	22.8	21.6	16.0
120 (2.0)	39.0	27.6	21.6	20.5	16.2	11.9
180 (3.0)	44.4	26.4	22.0	21.1	15.7	9.4
360 (6.0)	47.2	25.9	21.7	20.3	14.1	8.4
720 (12.0)	46.5	28.1	23.1	19.8	17.6	11.3
1080 (18.0)	46.7	33.3	31.3	29.9	23.4	13.9
1440 (24.0)	47.9	37.0	34.9	32.9	28.3	17.1
2160 (36.0)	54.9	43.8	41.5	38.8	36.8	21.7
2880 (48.0)	58.8	47.4	45.9	43.9	39.5	21.1
4320 (72.0)	65.5	54.8	53.2	57.3	44.7	24.2

Layer Info

Time Accessed	02 April 2026 05:35PM
Version	2018_v1
Note	As this point is in NSW the advice provided on losses and pre-burst on the NSW Specific Tab of the ARR Data Hub is to be considered. In NSW losses are derived considering a hierarchy of approaches depending on the available loss information. Probability neutral burst initial loss values for NSW are to be used in place of the standard initial loss and pre-burst as per the losses hierarchy.

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