Koldstrømmen

Hydrological station 20.25.0.

Programmatic access to station metadata (JSON)

Source: NVE HydAPI. Retrieved 2026-11-05T19:02:29Z.

Station and available series

stationId:
20.25.0
stationName:
Koldstrømmen
latitude:
58.60358
longitude:
8.19601
utmEast_Z33:
105038
utmNorth_Z33:
6515966
masl:
162
riverName:
Uldalsåna
councilNumber:
4214
councilName:
Froland
countyName:
Agder
drainageBasinKey:
2455
hierarchy:
Uldalsåna/Tovdalsvassdraget
lakeArea:
3.04
lakeName:
Kolstraumfjorden
lakeNo:
1324
regineNo:
020.BB52
reservoirNo:
354
reservoirName:
KOLSTRAUMFJORD
stationTypeName:
Privat, pålagt
stationStatusName:
Aktiv
drainageBasinArea:
75.78
drainageBasinAreaNorway:
75.78
gradient1085:
5.21
gradientBasin:
not reported by source
gradientRiver:
13.05
heightMinimum:
362
heightHypso10:
478
heightHypso20:
487
heightHypso30:
499
heightHypso40:
516
heightHypso50:
532
heightHypso60:
548
heightHypso70:
568
heightHypso80:
594
heightHypso90:
627
heightMaximum:
736
lengthKmBasin:
15.81
lengthKmRiver:
21.75
percentAgricul:
0.42
percentBog:
13.02
percentEffBog:
not reported by source
percentEffLake:
4.55
percentForest:
64.33
percentGlacier:
0
percentLake:
12.56
percentMountain:
9.08
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:
555.18
specificDischarge:
33.26
regulationArea:
529
areaReservoirs:
11.49
volumeReservoirs:
77.9
regulationPartReservoirs:
0.14
transferAreaIn:
0
transferAreaOut:
0
reservoirAreaIn:
0
reservoirAreaOut:
3.04
reservoirVolumeIn:
0
reservoirVolumeOut:
3.5
remainingArea:
0
numberReservoirs:
4
firstYearRegulation:
2008
catchmentRegTypeName:
regulert m/magasinregulering
owner:
Aust-Agder Energi Produksjon 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:
    1
    unit:
    m
    serieFrom:
    1963-07-21T00:00:00
    serieTo:
    not reported by source
    resolutionList:

    3 results

    1. resTime:
      0
      method:
      Instantaneous
      timeOffset:
      0
      dataFromTime:
      1963-07-21T11:00:00Z
      dataToTime:
      2025-12-30T23:00:00Z
    2. resTime:
      60
      method:
      Mean
      timeOffset:
      0
      dataFromTime:
      2004-01-06T00:00:00Z
      dataToTime:
      2025-12-30T23:00:00Z
    3. resTime:
      1440
      method:
      Mean
      timeOffset:
      0
      dataFromTime:
      1963-07-21T11:00:00Z
      dataToTime:
      2025-12-30T11:00:00Z
  2. parameterName:
    Magasinvolum
    parameter:
    1004
    versionNo:
    1
    unit:
    millioner m³
    serieFrom:
    not reported by source
    serieTo:
    not reported by source
    resolutionList:

    3 results

    1. resTime:
      0
      method:
      Instantaneous
      timeOffset:
      0
      dataFromTime:
      1963-07-21T11:00:00Z
      dataToTime:
      2025-12-30T23:00:00Z
    2. resTime:
      60
      method:
      Mean
      timeOffset:
      0
      dataFromTime:
      2004-01-06T00:00:00Z
      dataToTime:
      2025-12-30T23:00:00Z
    3. resTime:
      1440
      method:
      Mean
      timeOffset:
      0
      dataFromTime:
      1963-07-21T11:00:00Z
      dataToTime:
      2025-12-30T11:00:00Z

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