Longerakvatn

Hydrological station 21.33.0.

Programmatic access to station metadata (JSON)

Source: NVE HydAPI. Retrieved 2026-09-20T08:46:03Z.

Station and available series

stationId:
21.33.0
stationName:
Longerakvatn
latitude:
58.75312
longitude:
7.89249
utmEast_Z33:
89227
utmNorth_Z33:
6534388
masl:
597
riverName:
Longerakåni
councilNumber:
4220
councilName:
Bygland
countyName:
Agder
drainageBasinKey:
2488
hierarchy:
Longerakåni/Otra
lakeArea:
3.59
lakeName:
Longerakvatnet
lakeNo:
9075
regineNo:
021.D3B
reservoirNo:
296
reservoirName:
LANGERAKVATN
stationTypeName:
Privat, pålagt
stationStatusName:
Aktiv
drainageBasinArea:
17.416
drainageBasinAreaNorway:
17.416
gradient1085:
13.72
gradientBasin:
not reported by source
gradientRiver:
14.59
heightMinimum:
595
heightHypso10:
613
heightHypso20:
622
heightHypso30:
640
heightHypso40:
657
heightHypso50:
672
heightHypso60:
709
heightHypso70:
712
heightHypso80:
729
heightHypso90:
733
heightMaximum:
760
lengthKmBasin:
4.57
lengthKmRiver:
9.52
percentAgricul:
0
percentBog:
5.44
percentEffBog:
not reported by source
percentEffLake:
21.54
percentForest:
49.49
percentGlacier:
0
percentLake:
28.44
percentMountain:
13.75
percentUrban:
0
utmZoneGravi:
not reported by source
utmEastGravi:
not reported by source
utmNorthGravi:
not reported by source
utmZoneInlet:
not reported by source
utmEastInlet:
not reported by source
utmNorthInlet:
not reported by source
utmZoneOutlet:
not reported by source
utmEastOutlet:
not reported by source
utmNorthOutlet:
not reported by source
annualRunoff:
16.02
specificDischarge:
29.14
regulationArea:
18.26
areaReservoirs:
3.59
volumeReservoirs:
12.5
regulationPartReservoirs:
0.78
transferAreaIn:
0
transferAreaOut:
0
reservoirAreaIn:
0
reservoirAreaOut:
0
reservoirVolumeIn:
0
reservoirVolumeOut:
0
remainingArea:
-0.84
numberReservoirs:
1
firstYearRegulation:
0
catchmentRegTypeName:
regulert m/magasinregulering
owner:
Å ENERGI VANNKRAFT AS
qNumberOfYears:
not reported by source
qStartYear:
not reported by source
qEndYear:
not reported by source
qm:
not reported by source
q5:
not reported by source
q10:
not reported by source
q20:
not reported by source
q50:
not reported by source
hm:
not reported by source
h5:
not reported by source
h10:
not reported by source
h20:
not reported by source
h50:
not reported by source
culQm:
not reported by source
culQ5:
not reported by source
culQ10:
not reported by source
culQ20:
not reported by source
culQ50:
not reported by source
culHm:
not reported by source
culH5:
not reported by source
culH10:
not reported by source
culH20:
not reported by source
culH50:
not reported by source
seriesList:

2 results

  1. parameterName:
    Vannstand
    parameter:
    1000
    versionNo:
    50
    unit:
    m
    serieFrom:
    1994-08-11T00:00:00
    serieTo:
    not reported by source
    resolutionList:

    3 results

    1. resTime:
      0
      method:
      Instantaneous
      timeOffset:
      0
      dataFromTime:
      1994-08-11T11:00:00Z
      dataToTime:
      2026-06-18T22:00:00Z
    2. resTime:
      60
      method:
      Mean
      timeOffset:
      0
      dataFromTime:
      2003-12-31T13:00:00Z
      dataToTime:
      2026-06-18T22:00:00Z
    3. resTime:
      1440
      method:
      Mean
      timeOffset:
      0
      dataFromTime:
      1994-08-11T11:00:00Z
      dataToTime:
      2026-06-18T11:00:00Z
  2. parameterName:
    Magasinvolum
    parameter:
    1004
    versionNo:
    50
    unit:
    millioner m³
    serieFrom:
    not reported by source
    serieTo:
    not reported by source
    resolutionList:

    3 results

    1. resTime:
      0
      method:
      Instantaneous
      timeOffset:
      0
      dataFromTime:
      1994-08-11T11:00:00Z
      dataToTime:
      2026-06-18T22:00:00Z
    2. resTime:
      60
      method:
      Mean
      timeOffset:
      0
      dataFromTime:
      2003-12-31T13:00:00Z
      dataToTime:
      2026-06-18T22:00:00Z
    3. resTime:
      1440
      method:
      Mean
      timeOffset:
      0
      dataFromTime:
      1994-08-11T11:00:00Z
      dataToTime:
      2026-06-18T11:00:00Z

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How an AI agent should use this page

Ground rule: Navigate with HTML GET links to keep explanations and relationships. Use the page's JSON alternative only when concrete values must be extracted, compared or computed.

How to use the NVE station

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