The monitoring network within this area

Hydrionis holds 34,626 values from 4 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.

4
Gauges
34,626
Values held
1917–2026
Record spans
1,104 km²
Area
Gauges within the Testeboån drainage basin
4 monitoring points, positioned as the publisher records them.
Gauges within the Testeboån drainage basinKONSTDALSSTRÖMMEN, OCKELBO, SÄLJARNE, ÅBYGGEBYKONSTDALSSTRÖMMENOCKELBOSÄLJARNEÅBYGGEBY

The longest record here

Mean river flow at KONSTDALSSTRÖMMEN
Annual means of the daily record, 1980–2025. One gauge, not this drainage area.
Mean river flow at KONSTDALSSTRÖMMENMean river flow at KONSTDALSSTRÖMMEN: KONSTDALSSTRÖMMEN in m³/s, from 1980 to 2025.51015m³/s19801986199219982004201020162022KONSTDALSSTRÖMMEN 1980: 10.5 m³/sKONSTDALSSTRÖMMEN 1981: 14.8 m³/sKONSTDALSSTRÖMMEN 1982: 11.3 m³/sKONSTDALSSTRÖMMEN 1983: 10.7 m³/sKONSTDALSSTRÖMMEN 1984: 12.9 m³/sKONSTDALSSTRÖMMEN 1985: 15.2 m³/sKONSTDALSSTRÖMMEN 1986: 15.2 m³/sKONSTDALSSTRÖMMEN 1987: 11.4 m³/sKONSTDALSSTRÖMMEN 1988: 9.08 m³/sKONSTDALSSTRÖMMEN 1989: 6.81 m³/sKONSTDALSSTRÖMMEN 1990: 10.6 m³/sKONSTDALSSTRÖMMEN 1991: 9.30 m³/sKONSTDALSSTRÖMMEN 1992: 9.83 m³/sKONSTDALSSTRÖMMEN 1993: 7.82 m³/sKONSTDALSSTRÖMMEN 1994: 9.34 m³/sKONSTDALSSTRÖMMEN 1995: 13.8 m³/sKONSTDALSSTRÖMMEN 1996: 6.10 m³/sKONSTDALSSTRÖMMEN 1997: 7.58 m³/sKONSTDALSSTRÖMMEN 1998: 12.6 m³/sKONSTDALSSTRÖMMEN 1999: 10.9 m³/sKONSTDALSSTRÖMMEN 2000: 17.4 m³/sKONSTDALSSTRÖMMEN 2001: 11.8 m³/sKONSTDALSSTRÖMMEN 2002: 10.1 m³/sKONSTDALSSTRÖMMEN 2003: 8.67 m³/sKONSTDALSSTRÖMMEN 2004: 7.66 m³/sKONSTDALSSTRÖMMEN 2005: 7.50 m³/sKONSTDALSSTRÖMMEN 2006: 14.3 m³/sKONSTDALSSTRÖMMEN 2007: 5.63 m³/sKONSTDALSSTRÖMMEN 2008: 10.4 m³/sKONSTDALSSTRÖMMEN 2009: 14.1 m³/sKONSTDALSSTRÖMMEN 2010: 12.0 m³/sKONSTDALSSTRÖMMEN 2011: 9.88 m³/sKONSTDALSSTRÖMMEN 2012: 12.8 m³/sKONSTDALSSTRÖMMEN 2013: 7.54 m³/sKONSTDALSSTRÖMMEN 2014: 7.99 m³/sKONSTDALSSTRÖMMEN 2015: 8.93 m³/sKONSTDALSSTRÖMMEN 2016: 8.69 m³/sKONSTDALSSTRÖMMEN 2017: 9.99 m³/sKONSTDALSSTRÖMMEN 2018: 9.96 m³/sKONSTDALSSTRÖMMEN 2019: 12.3 m³/sKONSTDALSSTRÖMMEN 2020: 9.00 m³/sKONSTDALSSTRÖMMEN 2021: 13.3 m³/sKONSTDALSSTRÖMMEN 2022: 5.68 m³/sKONSTDALSSTRÖMMEN 2023: 15.9 m³/sKONSTDALSSTRÖMMEN 2024: 10.4 m³/sKONSTDALSSTRÖMMEN 2025: 10.6 m³/s

Annual means computed by Hydrionis from the published daily record, drawn only for years with at least 300 days held. They summarise this gauge's own record and say nothing about any other watercourse in this area.

View the data behind this chart
Underlying data
PeriodKONSTDALSSTRÖMMEN (m³/s)
198010.5
198114.8
198211.3
198310.7
198412.9
198515.2
198615.2
198711.4
19889.08
19896.81
199010.6
19919.30
19929.83
19937.82
19949.34
199513.8
19966.10
19977.58
199812.6
199910.9
200017.4
200111.8
200210.1
20038.67
20047.66
20057.50
200614.3
20075.63
200810.4
200914.1
201012.0
20119.88
201212.8
20137.54
20147.99
20158.93
20168.69
20179.99
20189.96
201912.3
20209.00
202113.3
20225.68
202315.9
202410.4
202510.6

Every gauge Hydrionis holds within this area

Gauges within the Testeboån and what each holds
GaugeMeasuresValuesRecord
KONSTDALSSTRÖMMENmean river flow17,1521979–2026
OCKELBOmean river flow12,7191917–1952
SÄLJARNEmean river flow3,3441950–1961
ÅBYGGEBYmean river flow1,4111918–1924

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 — 51000. 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
GaugeEvidenceEstablished
KONSTDALSSTRÖMMENStated by the publisher on the record this gauge’s observations came from.With the observations
OCKELBOStated by the publisher on the record this gauge’s observations came from.With the observations
SÄLJARNEStated by the publisher on the record this gauge’s observations came from.With the observations
ÅBYGGEBYStated by the publisher on the record this gauge’s observations came from.With the observations

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 3 of them, which makes it a full profile.

Information-gain signals held for this water body
SignalHeldCounts
Gauges holding a real record4yes, 3 or more
Years spanned110yes, 20 or more
Values held34,626yes, 1000 or more
Distinct measurements1no
Publishers measuring it1no
Official identifiers2recorded, not counted

Where these figures come from

MeasuredMedium confidence2026-08-24

Source: SMHISwedish hydrological observations, 2240. Licence: Open — attribution required (attribution required).

Method: Daily discharge exactly as SMHI publishes it, from its corrected archive. SMHI computes the daily value from its own sub-daily measurement and rating curves; Hydrionis does not recompute it, because a mean derived from whatever sub-daily data happens to be exposed would be a different statistic under the same name.

Checked and approved by SMHI except 2026-08-14 to 2026-08-24 (not yet checked). Station in the TESTEBOÅN main drainage basin, 990 km². Discharge is a property of this gauge and this reach, not of the river as a whole.

Retrieved 25 August 2026.