Holmfoss i Numedalslågen

Hydrological station 15.61.0.

Programmatic access to station metadata (JSON)

Source: NVE HydAPI. Retrieved 2026-09-21T16:31:07Z.

Station and available series

stationId:
15.61.0
stationName:
Holmfoss i Numedalslågen
latitude:
59.18906
longitude:
9.99414
utmEast_Z33:
214153
utmNorth_Z33:
6571840
masl:
20
riverName:
Numedalslågen
councilNumber:
3909
councilName:
Larvik
countyName:
Vestfold
drainageBasinKey:
593
hierarchy:
Numedalslågen
lakeArea:
0
lakeName:
not reported by source
lakeNo:
0
regineNo:
015.B1
reservoirNo:
not reported by source
reservoirName:
not reported by source
stationTypeName:
Forvaltningsstasjon
stationStatusName:
Aktiv
drainageBasinArea:
5202.37
drainageBasinAreaNorway:
5202.37
gradient1085:
4.48
gradientBasin:
16.88
gradientRiver:
3.68
heightMinimum:
6
heightHypso10:
351
heightHypso20:
540
heightHypso30:
689
heightHypso40:
835
heightHypso50:
998
heightHypso60:
1162
heightHypso70:
1209
heightHypso80:
1273
heightHypso90:
1302
heightMaximum:
1538
lengthKmBasin:
199.4
lengthKmRiver:
336.92
percentAgricul:
2.25
percentBog:
6.45
percentEffBog:
not reported by source
percentEffLake:
0.49
percentForest:
48.08
percentGlacier:
0
percentLake:
7.74
percentMountain:
32.43
percentUrban:
0.19
utmZoneGravi:
33
utmEastGravi:
155694
utmNorthGravi:
6676493
utmZoneInlet:
33
utmEastInlet:
73056
utmNorthInlet:
6708047
utmZoneOutlet:
not reported by source
utmEastOutlet:
not reported by source
utmNorthOutlet:
not reported by source
annualRunoff:
3304.65
specificDischarge:
20.13
regulationArea:
4888
areaReservoirs:
108.93
volumeReservoirs:
1101.04
regulationPartReservoirs:
0.33
transferAreaIn:
15.17
transferAreaOut:
59.22
reservoirAreaIn:
0
reservoirAreaOut:
15.43
reservoirVolumeIn:
0
reservoirVolumeOut:
161.4
remainingArea:
314.76
numberReservoirs:
59
firstYearRegulation:
1919
catchmentRegTypeName:
regulert m/magasin og uregulert restfelt
owner:
HH. Hydrologisk avd./Hydrometri
qNumberOfYears:
55
qStartYear:
1971
qEndYear:
2025
qm:
438.1852
q5:
530.2967
q10:
630.0303
q20:
737.4409
q50:
895.8508
hm:
4.8283
h5:
5.253
h10:
5.657
h20:
6.0437
h50:
6.5464
culQm:
458.2492
culQ5:
554.5785
culQ10:
658.8787
culQ20:
771.2076
culQ50:
936.8709
culHm:
4.9259
culH5:
5.3561
culH10:
5.7652
culH20:
6.1569
culH50:
6.6661
seriesList:

3 results

  1. parameterName:
    Vannstand
    parameter:
    1000
    versionNo:
    1
    unit:
    m
    serieFrom:
    1970-04-21T00:00:00
    serieTo:
    not reported by source
    resolutionList:

    3 results

    1. resTime:
      0
      method:
      Instantaneous
      timeOffset:
      0
      dataFromTime:
      1970-04-21T11:00:00Z
      dataToTime:
      2026-09-21T16:00:00Z
    2. resTime:
      60
      method:
      Mean
      timeOffset:
      0
      dataFromTime:
      1986-01-01T00:00:00Z
      dataToTime:
      2026-09-21T16:00:00Z
    3. resTime:
      1440
      method:
      Mean
      timeOffset:
      0
      dataFromTime:
      1970-04-21T11:00:00Z
      dataToTime:
      2026-09-20T11:00:00Z
  2. parameterName:
    Vannføring
    parameter:
    1001
    versionNo:
    1
    unit:
    m³/s
    serieFrom:
    not reported by source
    serieTo:
    not reported by source
    resolutionList:

    3 results

    1. resTime:
      0
      method:
      Instantaneous
      timeOffset:
      0
      dataFromTime:
      1970-04-21T11:00:00Z
      dataToTime:
      2026-09-21T15:00:00Z
    2. resTime:
      60
      method:
      Mean
      timeOffset:
      0
      dataFromTime:
      1986-01-01T00:00:00Z
      dataToTime:
      2026-09-21T15:00:00Z
    3. resTime:
      1440
      method:
      Mean
      timeOffset:
      0
      dataFromTime:
      1970-04-21T11:00:00Z
      dataToTime:
      2026-09-20T11:00:00Z
  3. parameterName:
    Vanntemperatur
    parameter:
    1003
    versionNo:
    2
    unit:
    °C
    serieFrom:
    2019-10-30T00:00:00
    serieTo:
    not reported by source
    resolutionList:

    3 results

    1. resTime:
      0
      method:
      Instantaneous
      timeOffset:
      0
      dataFromTime:
      2019-11-05T15:15:00Z
      dataToTime:
      2026-09-21T15:00:00Z
    2. resTime:
      60
      method:
      Instantaneous
      timeOffset:
      0
      dataFromTime:
      2019-11-05T16:00:00Z
      dataToTime:
      2026-09-21T15:00:00Z
    3. resTime:
      1440
      method:
      Instantaneous
      timeOffset:
      0
      dataFromTime:
      2019-11-06T11:00:00Z
      dataToTime:
      2026-09-21T11:00:00Z

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