OLDMAN RIVER NEAR LETHBRIDGE
Nelson

Point ID: 88

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Code: 05AD007

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Latitude: 49.70° Distance to Outlet: N/A Longitude: -112.87° Yearly Min: 1911 X EASE-Grid: -4044446.00 Yearly Max: 2000 Y EASE-Grid: 1705946.00 Number of Years: 82 Drainage Area: 17000.00 km2 Percentage of Coverage: 91% Drainage Area Effective: 15800.00 km2 Percentage of Coverage by Month: 88% Source: Hydat Notes: Gauge Altitude: N/A

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Field Definitions

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Site Descriptor Information	Site Time Series Data
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Site Time Series Plot

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Site Data:

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Statistics

Time Series

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Units:	mm	m3/s

Summary Statistics

Statistic	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Mean	3.38	3.44	6.44	11.54	34.97	47.80	18.70	6.61	5.86	6.55	5.71	3.89	153.00
Standard Deviation	2.12	2.20	4.28	7.18	17.41	30.03	14.22	5.69	6.28	4.99	3.51	2.13	67.64
Min	0.87	0.94	1.95	2.10	2.25	2.74	0.80	0.75	0.90	1.00	1.80	0.96	31.02
Max	14.93	12.50	22.68	33.85	87.11	143.47	63.17	28.67	37.97	25.52	16.01	12.35	361.02
Coefficient of Variation	0.63	0.64	0.67	0.62	0.50	0.63	0.76	0.86	1.07	0.76	0.61	0.55	0.44

Time Series Data

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
1911									37.97	12.65
1912	4.30	3.65	8.07	15.55	35.13	34.00	30.25	13.17	7.01	7.31
1913	2.76	1.68	2.02	22.11	41.90	67.85	27.09	15.56	8.43	9.47	7.71	4.03	210.46
1914	2.99	2.53	5.01	14.73	38.44	34.15	17.01	8.59	6.98	17.80	12.93	4.88	165.55
1915	4.08	2.93	8.74	15.00	46.79	62.36	40.80	22.84	14.32	16.07	9.06	4.39	246.51
1916	3.58	12.50	15.31	16.16	36.55	101.39	60.65	17.01	13.63	8.08	5.79	5.72	296.73
1917	3.13	3.23	3.72	15.55	68.68	93.31	34.81	8.93	5.38	4.68	4.10	2.91	248.16
1918	8.73	4.48	7.91	13.36	33.55	46.81	12.96	6.90	6.05	6.33	4.07	3.31	154.41
1919	2.85	2.30	2.76	10.05	38.12	28.82	9.31	4.76	2.68	2.96	3.45	3.13	110.88
1920	2.90	3.53	9.31	13.80	46.31	55.50	37.18	9.26	5.49	6.49	4.61	3.40	197.16
1921	3.07	3.32	6.77	14.42	44.74	54.74	19.06	6.52	4.00	7.07	4.76	3.97	172.20
1922	2.96	1.87	2.44	9.48	44.42	56.72	19.69	6.10	3.40	3.23	3.83	2.06	155.97
1923	2.55	1.75	3.20	8.40	35.13	116.18	29.93	12.51	7.84	4.33	4.51	2.66	229.52
1924	2.32	3.09	4.58	8.16	32.45	49.55	17.64	9.44	4.09	4.19	4.89	4.47	144.74
1925	5.47	4.36	9.58	26.99	51.20	45.28	15.47	5.07	5.78	9.58	5.90	4.74	189.17
1926	3.21	2.67	3.26	10.95	13.37	13.81	7.78	2.63	15.05	21.74	9.07	5.77	109.21
1927	3.29	2.96	6.52	16.16	68.05	119.84	47.42	19.85	31.26	25.52	13.07	7.40	361.02
1928	14.93	6.20	17.01	15.86	62.22	54.89	63.17	12.92	8.08	15.66	8.66	4.69	282.65
1929	3.20	2.43	9.15	9.16	43.48	61.75	14.16	3.43	2.65	2.95	3.29	2.73	158.28
1930	2.33	6.49	5.96	23.48	42.06	40.86	12.04	2.95	2.44	4.06	2.79	2.47	148.16
1931	2.08	1.82	2.33	3.37	21.27	16.31	3.77	1.83	1.68
1932						55.04	13.09	4.10	2.94	2.65	4.76	4.19
1933	3.07	1.92	3.18	9.80	38.12	53.52	20.95	3.86	4.68	7.67	16.01	8.79	171.43
1934	10.26	10.06	9.64	33.85	48.99	49.40	10.93	2.41	2.26	4.38	13.25	5.09	201.10
1935	5.78	9.26	7.86	11.13	28.36	33.09	11.75	3.31	1.56	1.76	3.14	2.47	119.80
1936	1.62	0.94	7.18	13.81	29.30	23.79	2.91	0.94	0.91	1.00	2.33	0.96	85.58
1937	1.41	1.29	3.09	6.22	20.95	55.96	10.65	2.41	1.49	3.66	5.99	3.62	117.03
1938	3.75	2.33	8.38	13.08	52.30	50.01	18.27	3.67	2.46	2.69	3.03	2.87	162.38
1939	2.95	1.65	5.39	9.80	24.10	28.21	9.96	1.61	1.33	3.35	3.83	3.26	95.28
1940	2.44	1.94	5.34	8.92	29.77	17.38	4.88	2.77	4.24	7.07	4.63	3.70	92.76
1941	3.07	2.53	3.97	7.30	14.37	15.40	7.34	1.61	4.21	10.16	6.30	6.19	82.29
1942	4.55	2.30	4.63	11.16	57.81	93.77	38.28	13.01	10.32	8.29	4.88	4.57	253.16
1943	2.93	3.50	8.57	31.10	40.01	59.31	31.03	5.23	2.09	2.16	2.88	2.03	190.88
1944	1.62	1.42	1.98	3.29	9.17	15.55	6.57	2.17	1.59	2.36	2.79	2.14	50.65
1945	2.10	1.84	3.29	2.41	30.56	64.95	20.95	2.27	2.71	4.85	6.72	3.97	146.68
1946	3.01	2.21	4.44	10.72	33.55	44.67	15.08	2.36	4.56	6.76	6.40	4.87	138.52
1947	4.33	7.36	22.68	22.72	56.24	43.15	14.74	5.72	8.92	19.69	11.36	4.46	220.92
1948	4.79	3.16	5.43	27.90	87.11	143.47	26.78	14.00	3.52
1957									2.00	5.12	7.29	2.96
1958	2.28	1.87	4.29	16.16	43.64	39.34	20.79	6.66	3.42	3.70	4.56	3.64	149.90
1959	3.13	4.61	8.46	14.00	45.05	62.97	24.89	6.51	10.15	11.55	12.44	8.57	212.21
1960	4.99	3.59	12.59	17.08	31.51	34.92	10.81	3.98	1.39	1.64	2.27	2.14	126.78
1961	1.61	1.78	2.69	3.35	34.97	39.80	7.91	2.44	2.21	5.94	4.62	1.98	109.14
1962	2.47	4.67	8.38	18.91	23.00	25.92	7.88	2.33	1.81	1.62	1.92	2.62	101.73
1963	2.52	3.52	2.96	2.44	16.86	36.90	39.70	5.17	2.77	2.66	3.61	3.34	122.08
1964	2.36	1.98	2.03	5.18	54.98	92.86	22.37	4.03	2.27	4.02	2.90	2.41	197.41
1965	3.10	4.02	6.22	16.31	37.02	75.78	37.65	8.73	10.69	15.06	7.24	6.11	227.82
1966	4.33	3.42	7.77	16.47	42.06	57.02	25.20	8.21	7.03	3.98	4.79	3.75	183.84
1967	3.32	3.50	8.88	11.86	74.67	109.63	32.45	5.13	2.00	2.10	4.18	1.92	259.49
1968	2.79	2.80	4.77	4.53	21.74	40.10	11.89	7.61	16.16	15.67	14.56	5.69	148.38
1969	5.34	3.19	14.54	24.55	37.81	50.47	37.18	5.62	1.86	2.91	3.83	2.38	189.21
1970	1.33	1.94	3.12	4.47	37.33	53.37	14.21	3.07	2.30	2.87	2.94	3.39	130.24
1971	2.90	7.52	4.30	9.39	46.00	51.69	13.86	4.69	3.23	5.06	4.47	2.68	155.96
1972	2.65	2.44	18.90	19.36	64.75	76.08	24.57	14.96	7.18	7.86	6.21	3.31	247.61
1973	3.29	3.52	5.45	4.71	19.69	21.96	5.81	1.31	1.48	2.13	3.67	3.43	76.45
1974	2.91	4.29	6.77	12.61	44.58	72.12	21.74	8.27	5.08	2.77	2.99	2.17	186.41
1975	1.92	1.75	2.57	11.31	50.09	111.15	38.59	7.80	9.80	8.73	6.37	8.29	258.44
1976	7.23	5.09	6.77	11.22	38.12	19.97	12.90	23.63	7.12	5.69	3.98	2.74	143.75
1977	2.02	2.83	2.49	3.34	6.33	3.96	1.21	1.31	1.44	2.33	1.80	1.91	31.02
1978	1.43	1.51	11.14	7.20	38.44	46.20	24.10	8.79	17.38	11.61	4.32	3.10	174.66
1979	2.05	1.61	11.61	12.15	45.68	28.66	4.21	1.81	1.31	2.54	1.98	2.50	115.63
1980	1.03	1.61	2.43	7.03	29.77	36.29	4.14	2.38	3.45	5.50	6.60	4.99	105.22
1981	8.40	4.85	3.94	4.99	65.53	48.18	14.26	5.42	1.89	2.10	3.25	1.41	163.62
1982	0.87	1.41	2.71	6.75	15.20	39.19	15.75	1.89	1.62	5.42	3.90	2.77	97.55
1983	2.33	2.58	3.69	3.63	14.93	11.97	4.32	1.33	1.12	2.22	3.58	1.86	53.51
1984	3.51	3.04	1.95	2.18	4.50	11.22	3.06	0.81	1.01	2.36	2.53	1.39	37.74
1985	1.17	1.18	2.32	3.49	17.64	13.01	0.80	0.75	4.79	9.20	10.47	5.80	70.50
1986	4.71	9.33	15.19	13.63	31.35	26.84	2.14	0.85	2.35	7.67	4.59	4.32	123.20
1987	3.37	3.42	5.09	10.99	17.17	6.05	5.62	5.96	8.81	4.93	2.33	1.75	75.39
1988	1.20	1.78	2.35	2.71	6.35	7.00	0.92	1.12	0.90	3.29	2.01	1.64	31.29
1989	1.54	1.25	2.91	5.23	12.30	21.65	1.94	1.80	8.36	5.53	15.25	6.70	84.70
1990	2.84	3.77	6.47	15.55	39.07	45.28	8.14	4.65	2.01	4.25	8.17	4.10	144.40
1991	3.01	4.92	5.47	8.46	28.67	51.38	35.76	16.38	4.51	3.09	3.74	2.82	167.89
1992	2.68	2.63	2.90	2.10	2.25	2.74	7.91	4.50	4.00	6.02	5.78	3.04	46.44
1993	2.82	2.97	6.55	6.11	17.17	41.47	54.51	28.67	24.39	15.74	6.62	6.03	212.09
1994	3.94	3.36	10.43	9.88	29.77	18.45	4.54	4.79	4.04	5.04	3.06	2.47	99.46
1995	2.21	2.25	3.18	3.96	30.88	116.79	39.85	12.05	7.35	8.62	11.30	11.70	250.42
1996	5.58	8.54	12.85	26.68	30.72	42.84	15.74	5.61	5.95	6.95	3.28	3.09	168.20
1997	3.47	5.44	12.29	10.75	36.23	55.50	11.61	5.97	6.16	4.60	4.03	2.95	159.15
1998	2.22	2.51	3.12	4.77	19.38	55.35	22.84	5.37	4.73	5.78	4.13	3.12	133.42
1999	2.73	2.91	3.75	5.02	7.77	16.01	13.66	10.90	5.17	5.61	13.74	12.35	99.40
2000	3.31	2.83	3.98	4.89	6.84	4.79	3.97	4.05	3.67	3.56	3.06	2.22	47.14

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