IBU

Consol

River Isar In Flood, Munich, Bavaria, Germany, Europe North Of The Alps.

Copyright 2005 & 2013 Julian H. Stacey, Munich

This is http://www.berklix.com/~jhs/isar/

• 2005 08 24 Isar @ München/Munich
• 2013 06 02 Isar @ München/Munich
• 2013 06 03 Isar @ München/Munich
• 2013 06 04 Isar @ München/Munich
• 2013 06 04 Donau/Danube @ Wien/Vienna

• (Isar ... is Germany's second most important tributary of the Danube after the Inn. to Black Sea)
• Isar flows NE from Munich to join Donau=Danube at Deggendorf (Germany),
• Donau=Danube flows SE to Passau (Germany)
• Inn flows NE to Passau (Germany)
• Ilz flows S to Passau (Germany)
• Passau (Germany) severely flooded in 2013 & earlier.
• Donau=Danube flows on SE into Austria through Linz ,
• South West through Vienna=Wien (Austria),
• East to Bratislava, Slovakia
• North East of of Budapest
• South along Border between Moldova & Rumania
• Delta Enters Black Sea South of Odesa (Ukraine),
• Black Sea exits South West through Istanbul to Sea of Marmara,
• SE Past Gallipoli, into the Aegean & Med.,
• `West' past Gibraltar to Atlantic. (West is in quotes, as I've seen a documentary suggesting Africa & Europe were once joined there, till land collapsed & Med got flooded, so maybe aggregate water flow is actually East if Med evaporates more.

2013 Notes

Other sites:

• River Warning www.hnd.bayern.de
• European floods en.wikipedia.org

Commentary to pictures

This occurred half a year after hottest summer ever in West Australia. - Global warming maybe ?

2013-06-02 Sunday

We went to check the river level, which was up on the flood plane.
Going beyond, over to East bank, we discovered in Albani-Str some cellars had been flooded, & noticed what was smoke or steam in middle of road, out of about 4 sequential man-holes in the road, (not unknown in winter, but temp this cold summer's day was maybe 10C).
We presume water had got in underground ducts of high pressure steam ducts of the district heating system. On the way back, from the final manhole we heard what sounded like lots of continuous small underground explosions, 1 every few seconds, as though maybe was ingresing on hot metal & exploding to steam. We decided not to hang around (Later AZ seemed to quote SWM as saying no danger from that.)

Scalding Danger! Verbrühungsgefahr = & Scalding Danger
Car was having hot water poured on its rubber wheels. How hot ? Don't know ! Heated from water leak into district heating system.

2013-06-03 Monday Approx 13:30

Water Levels

Water level at Reichen- Bach- Bruecke (Fraunhofer Str) was fluctuating around 3.50/3.55 BUT they had foolishly screwed the gauge into wall next to protruding wall that causes an eddy current with & constant reverse flow & lower level + fluctuations. If one looks perhaps 4 meters downstream, to where water is running smooth, & projects line along concrete left = South = back up stream, then the level was 3.60.

The next bridge upstream (Wittels- Bacher- Bruecke) at Balde- Platz * Kapuziner- Str (after walking there, E, S, W, via 2 bridges & East bank) had a level of 3.80, ie a difference of 20 cm. ! (Maybe something upstream changed in that time.)

Are they supposed to be cross calibrated to each other & published numbers of the http://www.hnd.bayern.de or just stuck in at random offsets ?

Heating temperatures

A sign in Palm- Str (West of Isar) where heating net is being extended South East into Arndt- Str), says [that?] part of the system runs at 140 Celsius (pressurised obviously) that's a new net segment they're adding. Older bits (eg perhaps in Albani-Str ?) might operate at higher temp &/or pressure ? To research: SWM

2013-06-04 Tuesday

~17:00 Level at Reichen- Bach- Bruecke (Fraunhofer Str) 3.20 (fluctuating to .05 or .1 less because of back flow & eddies)
~17:30 (by bike) Level at Wittels- Bacher- Bruecke 3.25
Whey these are similar, when yesterday Wittels- Bacher was approx. 0.20 higher, I don't know.

General Notes

• The still pictures on web here are shrunk by a factor of 2 on each dimension, & reduced by 30% to 70% jpg quality to achieve a data shrink factor of 10 to 20. The original full quality pictures are kept off line.
• Some picture & movie sequences are Not _Meant_ to be artistic ! eg
  • A picture including a dog excrement plastic bag dispenser & goal posts on the flood plane is useful, because it shows the height of water up poles on successive days, & height of sign can later be measured to scale to ground level.
  • A couple of the .avi are to show to the river authorities that they mounted river level gauge at Reichen- Bach- Bruecke at a foolish position, eddy currents make it hard to read, And back flow gives a Persistently low reading ! Moving it 2 metres downstream would be better.

    (Also note that one can only be read by standing on the bridge - but what if the bridge is closed when water gets too high ? - Whereas the gauge at Wittelsbacher Brücke is better placed, could be read from the bank if one leaned stepped over fence with maybe a kletter-steig kit ;-) & can be seen from less far out on the bridge.)

• Webcam www.webcam-muenchen.com
• http://www.hnd.bayern.de Hoch- Wasser- Nachrichten- Dienst
• Weather Forecasts
• Maps (General Maps, not river maps).
• https://de.wikipedia.org/wiki/Sylvensteinspeicher German - more info, inc. River Map
• https://en.wikipedia.org/wiki/Sylvenstein_Dam English - less info
• https://en.wikipedia.org/wiki/2005_European_floods English
• https://en.wikipedia.org/wiki/2013_European_floods English