Akerselva, ndf. Maridalsvatn

Hydrological station 6.9.0.

Programmatic access to station metadata (JSON)

Source: NVE HydAPI. Retrieved 2026-09-21T03:55:14Z.

Station and available series

stationId:
6.9.0
stationName:
Akerselva, ndf. Maridalsvatn
latitude:
59.96883
longitude:
10.7876
utmEast_Z33:
264927
utmNorth_Z33:
6655426
masl:
152
riverName:
Nordmarkvassdraget
councilNumber:
0301
councilName:
Oslo
countyName:
Oslo
drainageBasinKey:
342
hierarchy:
Nordmarkvassdraget
lakeArea:
0
lakeName:
not reported by source
lakeNo:
0
regineNo:
006.A3
reservoirNo:
not reported by source
reservoirName:
not reported by source
stationTypeName:
Privat, ikke pålagt
stationStatusName:
Aktiv
drainageBasinArea:
208.97
drainageBasinAreaNorway:
208.97
gradient1085:
10.79
gradientBasin:
not reported by source
gradientRiver:
11.8
heightMinimum:
148
heightHypso10:
254
heightHypso20:
345
heightHypso30:
390
heightHypso40:
414
heightHypso50:
445
heightHypso60:
479
heightHypso70:
516
heightHypso80:
547
heightHypso90:
612
heightMaximum:
716
lengthKmBasin:
33.29
lengthKmRiver:
41.76
percentAgricul:
1.44
percentBog:
2.4
percentEffBog:
not reported by source
percentEffLake:
4.14
percentForest:
83.19
percentGlacier:
0
percentLake:
12.44
percentMountain:
0
percentUrban:
0.03
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:
187.62
specificDischarge:
28.38
regulationArea:
209.46
areaReservoirs:
22.05
volumeReservoirs:
65.15
regulationPartReservoirs:
0.35
transferAreaIn:
41.89
transferAreaOut:
97.46
reservoirAreaIn:
4.88
reservoirAreaOut:
7.81
reservoirVolumeIn:
18.7
reservoirVolumeOut:
0
remainingArea:
0
numberReservoirs:
17
firstYearRegulation:
1901
catchmentRegTypeName:
Regulert m/magasinregulering og overføringer
owner:
OSLO KOMMUNE VANN- OG AVLØPSETATEN
qNumberOfYears:
49
qStartYear:
1956
qEndYear:
2025
qm:
19.7907
q5:
26.1588
q10:
31.9268
q20:
37.7148
q50:
45.5966
hm:
1.5676
h5:
1.7697
h10:
1.9348
h20:
2.0878
h50:
2.2805
culQm:
20.2762
culQ5:
26.8004
culQ10:
32.71
culQ20:
38.64
culQ50:
46.7151
culHm:
1.584
culH5:
1.7888
culH10:
1.9562
culH20:
2.1113
culH50:
2.3067
seriesList:

2 results

  1. parameterName:
    Vannstand
    parameter:
    1000
    versionNo:
    2
    unit:
    m
    serieFrom:
    2000-01-01T00:00:00
    serieTo:
    not reported by source
    resolutionList:

    3 results

    1. resTime:
      0
      method:
      Instantaneous
      timeOffset:
      0
      dataFromTime:
      1999-12-31T23:00:00Z
      dataToTime:
      2026-09-21T03:00:00Z
    2. resTime:
      60
      method:
      Mean
      timeOffset:
      0
      dataFromTime:
      2000-01-01T00:00:00Z
      dataToTime:
      2026-09-21T03:00:00Z
    3. resTime:
      1440
      method:
      Mean
      timeOffset:
      0
      dataFromTime:
      2000-01-01T11:00:00Z
      dataToTime:
      2026-09-20T11:00:00Z
  2. parameterName:
    Vannføring
    parameter:
    1001
    versionNo:
    2
    unit:
    m³/s
    serieFrom:
    not reported by source
    serieTo:
    not reported by source
    resolutionList:

    3 results

    1. resTime:
      0
      method:
      Instantaneous
      timeOffset:
      0
      dataFromTime:
      1999-12-31T23:00:00Z
      dataToTime:
      2026-09-21T03:00:00Z
    2. resTime:
      60
      method:
      Mean
      timeOffset:
      0
      dataFromTime:
      2000-01-01T00:00:00Z
      dataToTime:
      2026-09-21T03:00:00Z
    3. resTime:
      1440
      method:
      Mean
      timeOffset:
      0
      dataFromTime:
      2000-01-01T11:00:00Z
      dataToTime:
      2026-09-20T11:00:00Z

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.