Mjåvatn

Hydrological station 12.129.0.

Programmatic access to station metadata (JSON)

Source: NVE HydAPI. Retrieved 2026-09-21T21:19:57Z.

Station and available series

stationId:
12.129.0
stationName:
Mjåvatn
latitude:
60.71735
longitude:
8.16831
utmEast_Z33:
127685
utmNorth_Z33:
6750699
masl:
1093
riverName:
Votna
councilNumber:
3328
councilName:
Ål
countyName:
Buskerud
drainageBasinKey:
469
hierarchy:
Votna/Hallingdalsvassdraget/Drammensvassdraget
lakeArea:
0
lakeName:
not reported by source
lakeNo:
593
regineNo:
012.CEE2
reservoirNo:
2941
reservoirName:
FROSEN, BUVATNET, MJÅVATNET (STOLSV
stationTypeName:
Privat, pålagt
stationStatusName:
Aktiv
drainageBasinArea:
23.01
drainageBasinAreaNorway:
23.01
gradient1085:
15.09
gradientBasin:
12.5
gradientRiver:
33.25
heightMinimum:
1085
heightHypso10:
1089
heightHypso20:
1092
heightHypso30:
1110
heightHypso40:
1132
heightHypso50:
1145
heightHypso60:
1161
heightHypso70:
1182
heightHypso80:
1217
heightHypso90:
1257
heightMaximum:
1542
lengthKmBasin:
7.14
lengthKmRiver:
11.31
percentAgricul:
0.08
percentBog:
6.62
percentEffBog:
not reported by source
percentEffLake:
14.72
percentForest:
0.1
percentGlacier:
0
percentLake:
34.02
percentMountain:
59.21
percentUrban:
0
utmZoneGravi:
33
utmEastGravi:
125746
utmNorthGravi:
6754806
utmZoneInlet:
33
utmEastInlet:
127527
utmNorthInlet:
6759605
utmZoneOutlet:
not reported by source
utmEastOutlet:
not reported by source
utmNorthOutlet:
not reported by source
annualRunoff:
18.42
specificDischarge:
25.42
regulationArea:
22.95
areaReservoirs:
7.26
volumeReservoirs:
28.6
regulationPartReservoirs:
1.55
transferAreaIn:
272.34
transferAreaOut:
0
reservoirAreaIn:
0
reservoirAreaOut:
7.26
reservoirVolumeIn:
0
reservoirVolumeOut:
28.6
remainingArea:
0.01
numberReservoirs:
1
firstYearRegulation:
1949
catchmentRegTypeName:
Regulert m/magasinregulering og overføringer
owner:
E-CO Vannkraft AS, EKD
qNumberOfYears:
73
qStartYear:
1949
qEndYear:
2022
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:
1091.0069
h5:
1091.3629
h10:
1091.3921
h20:
1091.4026
h50:
1091.4072
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:
1091.0069
culH5:
1091.3629
culH10:
1091.3921
culH20:
1091.4026
culH50:
1091.4072
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:
      1949-05-06T11:00:00Z
      dataToTime:
      2022-05-22T22:00:00Z
    2. resTime:
      60
      method:
      Mean
      timeOffset:
      0
      dataFromTime:
      1997-01-06T12:00:00Z
      dataToTime:
      2022-05-22T22:00:00Z
    3. resTime:
      1440
      method:
      Mean
      timeOffset:
      0
      dataFromTime:
      1949-05-06T11:00:00Z
      dataToTime:
      2022-05-22T11:00:00Z

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.