The monitoring network within this area

Hydrionis holds 790 values from 3 gauges within it. Discharge is a property of a gauge and its reach, not of this drainage area, so this page reports the network and its records rather than a single figure.

Gauges

790

Values held

1917–2026

Record spans

Gauges within the Roseau huc8 subbasin

3 monitoring points, positioned as the publisher records them.

Flood peaks, as measured

This gauge's flood record, as measured. Unlike a daily mean it is the discharge at the moment the river was highest, which is the figure flood frequency analysis is built on.

Largest measured flow of each year at ROSEAU RIVER BELOW STATE DITCH 51 NR CARIBOU, MN

The highest instantaneous discharge the publisher recorded in each year — a flood peak as measured, not a daily average of one. 1917–2025.

Show relevant events (1 event)Shading marks when something was recorded, not what caused the line.

Published by the gauge's own operator from its sub-daily record; Hydrionis stores the figure rather than recomputing it. A year the gauge did not cover produces no value rather than a low one, and the gaps are stated below the chart. A peak is a property of this gauge and its reach: a larger flood upstream or downstream of it is not in this series.

What the shaded periods are (1 event)

A shaded period marks when something was recorded, not what caused the shape of the line. Where the two coincide, they coincided.

Documented record — A documented event, compiled from cited sources after it happened. The dates are as good as the record, which for older events can mean the month rather than the day.

Event	Type	Period	Standing	Authority
Hurricane Katrina water and sanitation collapse	Flood	2005-08-29 – 2005-09-30	Documented record	Compiled record

Not shown on this chart

The 1976 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
The 2022 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Yorkshire drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Cantareira water crisis, São Paulo — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Cape Town Day Zero — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
European drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.

View the data behind this chart

Underlying data
Period	ROSEAU RIVER BELOW STATE DITCH 51 NR CARIBOU, MN (m³/s)
1917	41.6
1920	48.7
1921	56.1
1922	38.5
1923	84.4
1924	34.8
1925	60.6
1926	53.8
1927	89.8
1928	47.3
1929	27.8
1930	39.1
1931	32.3
1932	48.4
1933	38.2
1934	12.0
1936	28.9
1937	38.5
1938	49.6
1939	9.63
1940	23.6
1941	47.0
1942	58.6
1943	48.1
1944	36.0
1945	49.8
1946	44.2
1947	50.4
1948	69.7
1949	41.9
1950	116
1951	62.3
1953	22.6
1955	30.6
1956	65.1
1957	50.7
1958	24.8
1959	44.5
1960	46.7
1961	17.3
1962	58.6
1963	42.8
1964	40.5
1965	76.2
1966	88.3
1967	68.2
1968	52.7
1969	70.2
1970	83.3
1971	49.3
1972	47.9
1973	20.4
1974	77.0
1975	71.9
1976	37.7
1977	10.8
1978	64.0
1979	84.4
1980	29.7
1981	21.0
1982	47.0
1983	39.6
1984	34.8
1985	42.2
1986	67.1
1987	46.2
1988	28.3
1989	37.9
1990	11.3
1991	37.9
1992	69.9
1993	49.0
1994	36.8
1995	66.5
1996	94.9
1997	94.0
1998	45.0
1999	73.3
2000	43.0
2001	82.7
2002	122
2003	22.1
2004	98.5
2005	69.4
2006	84.1
2009	91.7
2010	62.9
2011	85.0
2013	58.3
2014	73.1
2015	48.1
2016	60.9
2017	67.7
2018	36.0
2019	49.0
2021	14.5
2022	89.8
2023	66.0
2024	47.9
2025	23.9

About this series

Everything below is a property of the data rather than a rating of it. There is deliberately no single confidence score: how much a gap matters depends on what you are about to do with the series, and only you know that.

Source	United States Geological Survey — National Water Information System · US Government work — public domain
How the values came to exist	Measured
Period held	1917–2025
Completeness	91.7% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps	7 separate periods inside 1917–2025 hold no value. The longest runs from 1918 to 1919 — 2 years with no reading. They are drawn as breaks in the line and are never interpolated across.
Continuity	The record begins in 1917 and is not continuous from it: 109 years separate the first value from the last, and 92% of the years between them are held. The span is not the record.
Last read from the publisher	2026-10-01
Redistribution	Permitted by the upstream licences
Commercial reuse	Permitted by the upstream licences. No Hydrionis access tier can widen this.
Methodology	How this was produced

How much of the rain came back out

A discharge in cubic metres per second cannot be compared with anything: the larger number may only mean the larger catchment. Divided by the area draining to the gauge it becomes a depth of water over that land, which answers a question a reader already has — of the rain that fell here, how much came back out as river?

Water leaving the catchment above ROSEAU RIVER AT ROSS, MN, as a depth

The year's flow spread over the land draining to this gauge, in millimetres — the same unit rainfall is measured in. 1929–2025.

Show relevant events (1 event)Shading marks when something was recorded, not what caused the line.

Computed by Hydrionis from the published annual mean flow and the catchment area the station's own publisher states. It is not a water balance: the difference between rainfall and runoff is not evaporation alone but also change in groundwater storage, water abstracted and taken elsewhere, and water imported by transfer schemes — which is why a catchment can yield more runoff than the rain that fell on it without anything being measured wrongly. A different area figure rescales every value here by the ratio between them.

What the shaded periods are (1 event)

A shaded period marks when something was recorded, not what caused the shape of the line. Where the two coincide, they coincided.

Documented record — A documented event, compiled from cited sources after it happened. The dates are as good as the record, which for older events can mean the month rather than the day.

Event	Type	Period	Standing	Authority
Hurricane Katrina water and sanitation collapse	Flood	2005-08-29 – 2005-09-30	Documented record	Compiled record

Not shown on this chart

The 1976 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
The 2022 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Yorkshire drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Cantareira water crisis, São Paulo — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Cape Town Day Zero — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
European drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.

View the data behind this chart

Underlying data
Period	ROSEAU RIVER AT ROSS, MN (mm)
1929	34.0
1930	59.0
1931	25.0
1932	53.0
1933	39.0
1934	10.0
1935	30.0
1936	30.0
1937	84.0
1938	79.0
1939	10.0
1940	19.0
1941	110
1942	122
1943	115
1944	87.0
1945	115
1946	68.0
1947	92.0
1948	106
1949	55.0
1950	246
1951	109
1952	30.0
1953	35.0
1954	56.0
1955	50.0
1956	141
1957	142
1958	28.0
1959	69.0
1960	51.0
1961	21.0
1962	145
1963	68.0
1964	102
1965	170
1966	193
1967	116
1968	178
1969	116
1970	190
1971	68.0
1972	66.0
1973	41.0
1974	165
1975	138
1976	35.0
1977	20.0
1978	94.0
1979	122
1980	21.0
1981	38.0
1982	82.0
1983	78.0
1984	52.0
1985	167
1986	131
1987	45.0
1988	13.0
1989	54.0
1990	14.0
1996	192
1997	170
1998	101
1999	197
2000	133
2001	180
2002	221
2003	50.0
2004	266
2005	200
2006	110
2007	85.0
2008	98.0
2009	203
2010	177
2011	160
2012	21.0
2013	92.0
2014	154
2015	105
2016	173
2017	113
2018	42.0
2019	216
2020	140
2021	17.0
2022	214
2024	90.0
2025	59.0

About this series

Source	United States Geological Survey — National Water Information System · US Government work — public domain
How the values came to exist	Derived Computed by Hydrionis
Period held	1929–2025
Completeness	93.8% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps	2 separate periods inside 1929–2025 hold no value. The longest runs from 1991 to 1995 — 5 years with no reading. They are drawn as breaks in the line and are never interpolated across.
Continuity	The record begins in 1929 and is not continuous from it: 97 years separate the first value from the last, and 94% of the years between them are held. The span is not the record.
Inputs last read	2026-10-01 · when the records this was computed from were last read from their publishers
Calculation date	2026-08-24 · when the calculation method was last versioned, not a reading of any publisher
Redistribution	Permitted by the upstream licences
Commercial reuse	Permitted by the upstream licences. No Hydrionis access tier can widen this.
Methodology	How this was produced

Every gauge Hydrionis holds within this area

Gauges within the Roseau and what each holds
Gauge	Measures	Values	Record
ROSEAU RIVER AT ROSS, MN	burned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year	308	1928–2026
SPRAGUE CREEK NEAR SPRAGUE, MANITOBA, CANADA	burned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year	247	1928–2026
ROSEAU RIVER BELOW STATE DITCH 51 NR CARIBOU, MN	catchment area, annual maximum river flow, mean river flow, mean river flow, water year	235	1917–2026

How these gauges were attached to this water

Assigned by the publisher to a numbered basin Every gauge here is assigned to this drainage area by its own publisher, which issues the area an official code — 09020314. A drainage area is not a river: it contains the tributaries as well as the main channel, and a gauge in it may be on any of them.

What each gauge’s link to this water rests on
Gauge	Evidence	Established
ROSEAU RIVER AT ROSS, MN	Stated by the publisher — USGS site service, huc_cd field — https://waterservices.usgs.gov/nwis/site/ ; named from the USGS Watershed Boundary Dataset 8-digit HU (Subbasin) layer — https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer/4	2026-10-02
SPRAGUE CREEK NEAR SPRAGUE, MANITOBA, CANADA	Stated by the publisher — USGS site service, huc_cd field — https://waterservices.usgs.gov/nwis/site/ ; named from the USGS Watershed Boundary Dataset 8-digit HU (Subbasin) layer — https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer/4	2026-10-02
ROSEAU RIVER BELOW STATE DITCH 51 NR CARIBOU, MN	Stated by the publisher — USGS site service, huc_cd field — https://waterservices.usgs.gov/nwis/site/ ; named from the USGS Watershed Boundary Dataset 8-digit HU (Subbasin) layer — https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer/4	2026-10-02

What this record holds

Hydrionis decides which waters get a page, and which of those are offered to search, from what is actually held rather than from how the page reads. Five signals are counted; this record has 4 of them, which makes it a full profile.

Information-gain signals held for this water body
Signal	Held	Counts
Gauges holding a real record	3	yes, 3 or more
Years spanned	110	yes, 20 or more
Values held	790	no
Distinct measurements	5	yes, 2 or more
Publishers measuring it	2	yes, 2 or more
Official identifiers	1	recorded, not counted

Use this data

Machine-readable JSON /api/v1/observations/by-subject/gauge-usgs-05107500.json
How to cite this, and who you must credit
How these figures were produced
Request this at a different scale, format or geography

No bulk download is offered here, which is a licence position rather than a product one: at least one contributing publisher does not permit redistribution. The values can be read on the page, cited, and pointed to at source.

Attribution and citation

Suggested citation for Hydrionis

Hydrionis (2026), Roseau gauge records, accessed 2026-10-05, hydrionis.com/waters/united-states-roseau/

Cite Hydrionis where you rely on values Hydrionis computed, on the method that produced them, or on the compilation itself. The underlying measurements remain the publishers’ and their attribution requirements apply to you directly.

Recommended, not required. Hydrionis does not claim rights over unmodified public data it relayed, and doing arithmetic on somebody else’s measurements does not make them Hydrionis’s. Cite the version and the access date: the Roseau gauge records changes as publishers release and as methods are revised, and a citation without both cannot be checked later. Full guidance is on cite and reuse.

None of the contributing licences requires attribution. Crediting the publishers is still good practice and they are listed above.

Where these figures come from

MeasuredHigh confidence2025-05-06

Source: USGS — National Water Information System, USGS site 05107500, annual peak streamflow. Licence: Open.

Method: The instantaneous maximum discharge of each water year as published by USGS, dated to the day it occurred. One value per October-to-September water year; where the publisher lists both a systematic and a historic peak for a year, the larger is the annual maximum. Values the publisher marks as maximum daily averages are not held here, because they are not instantaneous peaks. Values marked as bounded rather than measured are held as censored observations carrying the bound. Cubic feet per second are converted to cubic metres per second and the publisher unit is recorded alongside.

Rating curves are extrapolated at extreme discharges, so the largest values in a peak series carry the largest measurement uncertainty. Data from the U.S. Geological Survey National Water Information System, a work of the United States government and therefore in the public domain.

Retrieved 1 October 2026.