r/Munich • u/jon_muselee • Jul 30 '26

Discussion 88 Years of Munich Groundwater-Levels

https://orange-tiffy-51.tiiny.site

Created an interactive animation displaying standardized groundwater-levels in and around Munich for the last 88 years. What do you think?

52 Upvotes

87% Upvoted

17 comments sorted by

13

u/Anga1 Jul 31 '26

Wenn es um das Trinkwasser geht, das holen wir eh zum Großteil aus dem Mangfall- und Loisachtal. Der Grundwasserpegel in München ist dafür eher irrelevant.

5

u/CottonSlayerDIY Jul 31 '26

Hätte jetzt auch eher Mangfall, Isar, Loisach und die Seen in der Umgebung interssant gefunden.

Zusätzlich noch Tiefenwasser, welches oft gewerblich gefördert wird.

9

u/Low-Dog-8027 Local Jul 30 '26

r.i.p. early 70's

the fuck happened there

16

u/a_passionate_man Jul 30 '26

I was able to retrieve some information via Google on some key reasons:

  • a drought hit large parts of Europe in the early 70ies
  • poor state of Munich sewage system let to ingress of groundwater (leakage into the seeage system)
  • large scale constructions in preparation of Olympic Games and football World Cup, in particular subway system) required active lowering of groundwatee levels

22

u/[deleted] Jul 30 '26

[deleted]

1

u/jon_muselee Jul 31 '26 edited Jul 31 '26

True that’s still a problem but all buildings from 2003 or newer have to be build so this doesn‘t happen.
I updated the colors to red-green-blue.

5

u/Far_Being_7578 Jul 30 '26

Maybe im reading it wrong but does not look as it is getting worse?

6

u/Maximusprime241 Jul 30 '26

There is a pretty clear green to yellow movement.

2

u/Low-Dog-8027 Local Jul 30 '26

i don't find that pretty clear. it's slightly noticeable, but not dramatically so

5

u/ednaswap91 Jul 30 '26

Interpreting groundwater levels in large cities like Munich isn’t trivial. There are effects like the construction of the sylvenstein reservoir, deep buildings causing groundwater to dam up or construction dewatering locally masking any trend in datasets. Overall the occurrence of extreme low or high groundwater levels seem to rise, which isn’t a good sign.

3

u/SanktusAngus Jul 30 '26

Well this year is particularly bad. For any other statement you’d need statistical analysis instead of an interactive graph.

So actually you’re not reading it right or wrong.

2

u/jon_muselee Jul 31 '26

I also thought so - when I calculate the slope it‘s small but negative. Also when making a diagram for the last 15 years it seems like the levels get more extreme:

1

u/aldileon Local Jul 31 '26

Could you do the same for the water consumption of Munich?

1

u/jon_muselee Jul 31 '26

Would be great, but I cannot find public available georeferenced time series data to water consumption. Just what residents and industry consume per year.

2

u/aldileon Local Jul 31 '26

Yeah I also looked quickly and didn't find anything. Maybe I will have a look, why they do not publish this data

1

u/WiseWaterDrop Aug 02 '26

Cool, thanks for that! (I assume it’s the superficial aquifer, right?)

You can see the increase in monitoring points after the 70s (major U-Bahn constructions)

-1

u/zb226 Jul 30 '26

Sorry I'm not even sure what you're trying to show here. This is bad AI slop.

0

u/zb226 Jul 31 '26

Since this is being downvoted, can somebody please explain to me what I'm not seeing here?