Holsfjorden

Hydrological station 12.555.0.

Programmatic access to station metadata (JSON)

Source: NVE HydAPI. Retrieved 2026-09-21T06:08:47Z.

Station and available series

stationId:
12.555.0
stationName:
Holsfjorden
latitude:
60.59809
longitude:
8.34632
utmEast_Z33:
136018
utmNorth_Z33:
6736465
masl:
544
riverName:
Åni
councilNumber:
3330
councilName:
Hol
countyName:
Buskerud
drainageBasinKey:
2381
hierarchy:
Åni/Hallingdalsvassdraget/Drammensvassdraget
lakeArea:
0
lakeName:
not reported by source
lakeNo:
597
regineNo:
012.CFA3
reservoirNo:
not reported by source
reservoirName:
not reported by source
stationTypeName:
Privat, pålagt
stationStatusName:
Aktiv
drainageBasinArea:
829.13
drainageBasinAreaNorway:
829.13
gradient1085:
15.09
gradientBasin:
not reported by source
gradientRiver:
16.18
heightMinimum:
541
heightHypso10:
1021
heightHypso20:
1129
heightHypso30:
1161
heightHypso40:
1241
heightHypso50:
1553
heightHypso60:
1558
heightHypso70:
1568
heightHypso80:
1623
heightHypso90:
1717
heightMaximum:
1929
lengthKmBasin:
47.41
lengthKmRiver:
64.22
percentAgricul:
0.58
percentBog:
3
percentEffBog:
not reported by source
percentEffLake:
1.62
percentForest:
12.88
percentGlacier:
0.89
percentLake:
11.44
percentMountain:
69.98
percentUrban:
0.02
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:
805.09
specificDischarge:
30.77
regulationArea:
829.1
areaReservoirs:
55.47
volumeReservoirs:
745
regulationPartReservoirs:
0.93
transferAreaIn:
124.01
transferAreaOut:
272.34
reservoirAreaIn:
7.87
reservoirAreaOut:
29.27
reservoirVolumeIn:
98.5
reservoirVolumeOut:
190.4
remainingArea:
0.03
numberReservoirs:
6
firstYearRegulation:
1949
catchmentRegTypeName:
Regulert m/magasinregulering og overføringer
owner:
E-CO Vannkraft AS, EKD
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:

1 results

  1. 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:
      1993-09-01T00:00:00Z
      dataToTime:
      2005-09-29T23:00:00Z
    2. resTime:
      60
      method:
      Mean
      timeOffset:
      0
      dataFromTime:
      1993-09-01T01:00:00Z
      dataToTime:
      2005-09-29T23:00:00Z
    3. resTime:
      1440
      method:
      Mean
      timeOffset:
      0
      dataFromTime:
      1993-09-01T11:00:00Z
      dataToTime:
      2005-09-29T11:00:00Z

Fetch observations

Select parameter, resolution and time range

Continue exploring

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

Choose the right parameter ID, unit, resolution and reference period. Water level and discharge are different series and must not be mixed.