Accelerando Technology
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We measure the water level to ensure that there is neither too much nor too little water in the lake.

There are several different sensors in the lake system. In Ältasjön itself, there is a water level gauge. At the dam gate at Nacka Södra Kyrkogård, there is both a water level gauge and a flow meter that measures how much water flows out of the lake. At the carpentry, there is a gauge that checks that the water level there does not get so high that it reaches the house.

We also show a rain forecast from SMHI, which gives an indication of how much water will end up in the lake, sooner or later.

 
Ältasjön
Water level
2025-09-16 03:01
23.58 m
Water temperature
2025-09-16 03:01
16.0 °C
Values, Ältasjön
Water gate
Water level
2025-09-16 02:34
22.14 m
Water temperature
2025-09-16 02:34
16.4 °C
Values, Water gate
Distance to water, carpentry
Distance between the sensor and the water surface
2025-09-16 02:47
77.2 cm
Distance between sensor and water surface, Carpentry
Precipitation (Forecast)
Source: SMHI, Forecast issued 2025-09-16 02:31
Temperature (Forecast)
Source: SMHI, Forecast issued 2025-09-16 02:31
Expected rain (Ältasjön)
Source: SMHI, Forecast issued 2025-09-16 02:31
2025-09-16
Temperature
12-17 °C
Precipitation
3.5-18.3 mm
Precipitation - Mean
2.2 mm
Precipitation - Median
0.0 mm

Rain

Drizzle

2025-09-17
Temperature
11-16 °C
Precipitation
8.3-30.2 mm
Precipitation - Mean
1.6 mm
Precipitation - Median
0.0 mm

Drizzle

Rain

2025-09-18
Temperature
11-16 °C
Precipitation
1.6-10.2 mm
Precipitation - Mean
0.7 mm
Precipitation - Median
0.0 mm

Rain

2025-09-19
Temperature
13-19 °C
Precipitation
0.5-1.4 mm
Precipitation - Mean
0.3 mm
Precipitation - Median
0.0 mm

Rain

2025-09-20
Temperature
12-17 °C
Precipitation
0.5-1.4 mm
Precipitation - Mean
0.0 mm
Precipitation - Median
0.0 mm

Rain

2025-09-21
Temperature
13-16 °C
Precipitation
0.8-2.6 mm
Precipitation - Mean
0.9 mm
Precipitation - Median
0.2 mm

Rain

2025-09-22
Temperature
11-14 °C
Precipitation
0.3-0.9 mm
Precipitation - Mean
0.1 mm
Precipitation - Median
0.0 mm

Rain

2025-09-23
Temperature
10-14 °C
Precipitation
0.2-0.6 mm
Precipitation - Mean
0.0 mm
Precipitation - Median
0.0 mm

Rain

2025-09-24
Temperature
9-13 °C
Precipitation
0.2-0.7 mm
Precipitation - Mean
0.1 mm
Precipitation - Median
0.0 mm

Rain

2025-09-25
Temperature
9-13 °C
Precipitation
0.2-0.3 mm
Precipitation - Mean
0.0 mm
Precipitation - Median
0.0 mm

Rain

Report
Information

This graph shows a summary of the data we have saved.
You can select the date range for which you want to view data.
The oldest data is from 2024-09-19. Measured temperature and precipitation are from 2024-10-23 onwards.

  • The precipitation forecast from SMHI is the last forecast from the day before the values are measured. - The water depths are the average value from that day.
  • The distance between the sensor and the water surface at the carpentry is the average value for the day.
  • The precipitation is the total precipitation for that day, both the measured and the forecast from SMHI.
  • The temperature is the measured average temperature for that day.
  • The gate opening is a manually entered value from the day the gate opening was changed.

You can hide/show individual lines by clicking on the title of the data series above the chart.

Since the chart contains so much information, it may be difficult to view it properly on a mobile device.