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シミュレーション · Minimal Water · By the river

Hamburg · Alster and Elbe – from cholera to groundwater

A port city in the model: Alster lakes that people dammed, a works at Rothenburgsort, where central supply began in 1848, a water tower on the hill and drinking water that today comes entirely from groundwater.

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Trailer

Real are location, terrain and buildings (OpenStreetMap, heights from SRTM and EU-DEM). The position of the facilities is based on OpenStreetMap and public information; the pipe network, sizes, demand and operation are invented and simplified. It is not an operations control and not a planning tool. With your data, the model shows your site and your processes.

The Alster lakes are man-made: a mill dam has held the river back since the Middle Ages. Hamburg used to drink unfiltered Elbe water, in the cholera epidemic of 1892 more than 8,500 people died, from 1893 sand filters cleaned the water, and today it comes entirely from groundwater, drawn from 16 waterworks. In the model the works stands at Rothenburgsort, where central supply began in 1848; pumps fill the high tank on the hill, which gives the flat town its pressure.

From the old town to HafenCity on its raised plinths, seven districts hang on it: Altstadt and Neustadt, St. Georg, Rotherbaum, Uhlenhorst, St. Pauli, HafenCity and the Hammerbrook commercial area. Three controls move the whole landscape: rain, heat and consumption. In heat, parks and meadows turn brown, and everyone needs more; in heavy rain the sewers overflow, and the water rises on the Elbe and Alster along the contour lines.

Real are location, terrain and buildings. The pipe network, sizes, demand and operation are invented and simplified; quantities and processes are model assumptions. The page is for schools and universities, exhibitions, municipalities and water supply.

The path of water

  1. 01

    groundwater is raised

  2. 02

    the works at Rothenburgsort take it in

  3. 03

    pumps fill the high tank on the hill

  4. 04

    into the old town, St. Georg, Rotherbaum, Uhlenhorst, St. Pauli, HafenCity and the industry

  5. 05

    the sewer leads out of the area to the treatment plant

Water shapes the land

01

Water shapes the land

Hamburg · Alster and Elbe: The Alster lakes are man-made, behind them lie the Elbe and the port; the city once drank unfiltered Elbe water, today its drinking water comes entirely from groundwater.

The path of water

02

The path of water

Glowing pipes – the path of the water as one continuous line, the waves run with the speed and direction of the flow.

What is shown – why – for whom

表示内容 なぜ 対象
Rothenburgsort waterworks なぜShows the place where central supply with unfiltered Elbe water began in 1848. 対象exhibition, local history
Water tower on the hill なぜShows how high tanks give the flat town pressure. 対象teaching, water supply
Altstadt and Neustadt, St. Georg and Rotherbaum なぜShows densely built districts around the Alster, with very many people by day. 対象municipalities, teaching
Uhlenhorst and St. Pauli なぜShows districts on the Alster and the Elbe, with canals to the front door. 対象exhibition, local history
HafenCity on raised plinths なぜShows how a new district on old harbour islands is built against storm surges. 対象civil protection, universities
Hammerbrook commercial area between canals なぜShows a large consumer between watercourses. 対象teaching, water supply
Three controls and weather situations なぜShows connections in the model, not a statement about reality. 対象teaching, education
The city from within

03

The city from within

Wastewater – From the house through the sewer to the plant.

When things get tight

04

When things get tight

Heat over the city – green spaces turn brown, much evaporates, and everyone needs more water.

Films from the model

  • Above Hamburg · Alster and Elbe

    A flight across the area: low angles with sky, the Alster in the middle of the city, behind it the Elbe and the port, then over the town to the long shot – with the sound of the landscape.

  • The path of water

    From the source via the works and the storage into the town, through the sewer and back into the river: station by station, the pipes glowing.

  • The city opens up

    Beneath the streets: first the pipes, then the open cross-section, wastewater, rainwater in heavy rain, greywater – and everything together.

  • A water year

    A normal year, then heat and drought: fields wither, the river narrows – then heavy rain, thunderstorm and flood. The landscape answers in real time.

  • Pipe burst and flood

    First a main bursts: the spot pulses red, a crew drives out, the storage carries the town. Then heavy rain: the water rises by elevation into floodplain and districts.

  • Using the software

    With the full interface: tap weather situations, pull levers, look at stations on the wheel and consequences – every effect shows at once on the map.

Facilities and landscape in the model

  • Rothenburgsort waterworks

    Hamburg's central water supply began here in 1848 – with unfiltered Elbe water. Today all of Hamburg's drinking water comes from groundwater, drawn by 16 waterworks.

  • Water tower

    A water tower on the hill gave the flat city pressure; here it stands for the high storage tanks.

  • Old town and New town

    Town hall, offices, shops – very many people by day.

  • St. Georg

    Dense residential quarter on the Outer Alster.

  • St. Pauli

    Quarter above the port, close to the Elbe and the Landungsbrücken.

  • Rotherbaum

    Villas and the university on the west bank of the Alster.

  • Uhlenhorst

    Living on the east bank of the Alster, canals at the doorstep.

  • Hammerbrook industry

    Offices and businesses between canals.

  • HafenCity

    New quarter on old port islands – built on raised plinths against storm floods.

Thunderstorm

05

Thunderstorm

Thunderstorm – lightning in view, the cloud lights up from within around the strike, the cover tears open along the line of sight.

Flood by contour lines

06

Flood by contour lines

Flood by contour lines – the floodplain and low-lying districts fill up bit by bit, with a dirty rim of foam.

Processes in the model

The path of water

  1. 01groundwater is raised
  2. 02the works at Rothenburgsort take it in
  3. 03pumps fill the high tank on the hill
  4. 04into the old town, St. Georg, Rotherbaum, Uhlenhorst, St. Pauli, HafenCity and the industry
  5. 05the sewer leads out of the area to the treatment plant

Heat and drought

  1. 01no rain and great heat
  2. 02the soil dries out, the river narrows
  3. 03the fields wither first
  4. 04water runs short in the town, the storage empties
  5. 05rain brings soil, river and harvest back quickly; dead forest takes far longer

Heavy rain and flood

  1. 01the soil soaks up all it can
  2. 02what it cannot hold rushes into streams and the river
  3. 03the floodplain and low-lying districts fill by contour line
  4. 04sewers and treatment plant reach their limit
  5. 05after the rain the water falls again

Pipe burst

  1. 01a pipe bursts, water escapes
  2. 02a crew drives out from the depot
  3. 03the section is shut off
  4. 04the storage carries the town
  5. 05after the repair the pipe goes back into service

What the model can be used for

  • From cholera to groundwater

    Unfiltered Elbe water, cholera in 1892, sand filters from 1893, groundwater today: the model ties the history of water supply to the place where it began.

    対象schools, universities, exhibitions

  • Water supply in a flat town

    Without a slope, pressure comes from pumps and a high tank. You see how the tower on the hill holds the network pressure and where the water flows.

    対象water supply, universities, training

  • Playing through heat and heavy rain

    In heat parks turn brown and everyone needs more water; in heavy rain the sewers overflow. You see what gets tight first.

    対象civil protection, municipalities, education

  • Museum and exhibition

    Lakes that people dammed, and districts on raised plinths against storm surges: the model shows how Hamburg lives with water.

    対象museums, exhibitions, local history

The course

07

The course

The course – the Alster in the middle of the city, behind it the Elbe and the port; waves and foam move with the current in real time.

The whole software

08

The whole software

Hot summer with one tap – the levers visibly move there, the camera follows the effect, below a sentence explains what is happening.

What you can change

Controls

  • Rain: From drought to storm: rain fills soil, groundwater and river; little rain lets everything dry out, a lot of it lets it overflow.
  • Heat: Up to four degrees more: more evaporates from lakes, fields and trees, and everyone needs more water.
  • Consumption: From frugal to wasteful: wasteful speeds up the shortage, frugal delays it.
  • Weather situations: Normal year, Hot summer, Drought, Heavy rain: One tap sets all three levers, they visibly move there, and the view goes to where the effect shows.

Disruptions

  • Water shortage: Water is running short in town: the first homes are without water – people are moving away.
  • Failed harvest: The fields are withering – the harvest fails, food becomes scarce and expensive.
  • Fish die-off: The river is shallow and warm, oxygen is running out – the fish are dying.
  • Flood: Flood! The river bursts its banks, the sewers overflow – untreated water flows into the river.
  • Health: Without enough clean water, health suffers: heat, poor hygiene, disease. Ambulances are on their way.
  • Pipe burst: Pipe bursts hit lines, never a single building; the storage carries the town until the crew has repaired the section.
  • The extreme: Everything is parched: no water, no harvest, no trees, no animals. Life is no longer possible here.

What the model brings

  • 01

    The real city as a stage

    Alster, Elbe, canals and districts stand on terrain from OpenStreetMap and elevation data. You show Hamburg as it lies, not as a diagram.

  • 02

    From groundwater into the districts

    Abstraction, works, pumps, water tower and districts can be shown one by one. You understand the path before you change anything.

  • 03

    Situations without damage

    Heat, heavy rain, pipe burst: you see where it gets tight first, and set it back. A pipe burst hits a pipe, never a single building.

  • 04

    In the browser, with one tap

    The model runs in the browser. One tap sets rain, heat and consumption together to a weather situation.

  • Hamburg · Alster und Elbe: Die Alster-Seen sind von Menschen gemacht, dahinter liegen Elbe und Hafen; früher trank die Stadt ungefiltertes Elbwasser, heute kommt ihr Trinkwasser ganz aus dem Grundwasser.
    Hamburg · Alster and Elbe: The Alster lakes are man-made, behind them lie the Elbe and the port; the city once drank unfiltered Elbe water, today its drinking water comes entirely from groundwater.
  • Hamburg · Alster und Elbe am Abend – tiefe Sonne, lange Schatten, das Wasser spiegelt den Himmel.
    Hamburg · Alster and Elbe in the evening – low sun, long shadows, the water mirrors the sky.
  • Morgens zwischen Alster und Elbe – Dunst liegt über dem Land, Gelände und Bebauung stammen aus Höhendaten und OpenStreetMap.
    Morning between the Alster and the Elbe – haze over the land, terrain and buildings come from elevation data and OpenStreetMap.
  • Der Lauf – die Alster mitten in der Stadt, dahinter Elbe und Hafen; Wellen und Schaum ziehen in echter Zeit mit der Strömung.
    The course – the Alster in the middle of the city, behind it the Elbe and the port; waves and foam move with the current in real time.
  • Weit über das Land – Wald, Felder und Siedlungen hängen an demselben Wasser.
    Far across the land – forest, fields and settlements hang on the same water.
  • Die Alster – die Seen sind von Menschen gemacht: Ein Mühlendamm staut den Fluss seit dem Mittelalter auf.
    The Alster – the lakes are man-made: a mill dam has held back the river since the Middle Ages.
  • Altstadt und Neustadt von außen – jedes Haus ein Quader, am Abend warm im Licht.
    Old town and New town from outside – every house a block, warm in the evening light.
  • Dämmerung zwischen Alster und Elbe – die Häuser werden dunkler, über dem Land liegt der letzte Schein.
    Dusk between the Alster and the Elbe – the houses grow darker, the last glow lies over the land.
  • Felder und Wiesen – die Reihen wachsen mit der Ernte und welken in der Dürre; der Boden ist ein Schwamm.
    Fields and meadows – the rows grow with the harvest and wither in the drought; the soil is a sponge.
  • Hamburg · Alster und Elbe schräg von oben – der ganze Ausschnitt als Modell aus Quadern, das Netz spielt in seiner Mitte.
    Hamburg · Alster and Elbe from above at an angle – the whole area as a model of blocks, with the network at its centre.
  • Die Quelle – Brunnen fördern Grundwasser; sinkt es, kommt weniger im Werk an.
    The source – wells raise groundwater; when it sinks, less reaches the works.
  • Wasserwerk Rothenburgsort – Hier begann 1848 Hamburgs zentrale Wasserversorgung – mit ungefiltertem Elbwasser. Heute kommt Hamburgs Trinkwasser ganz aus dem Grundwasser, gefördert in 16 Wasserwerken.
    Rothenburgsort waterworks – Hamburg's central water supply began here in 1848 – with unfiltered Elbe water. Today all of Hamburg's drinking water comes from groundwater, drawn by 16 waterworks.
  • Wasserturm – Ein Wasserturm auf dem Hügel gab der flachen Stadt Druck; hier steht er für die hohen Speicher.
    Water tower – A water tower on the hill gave the flat city pressure; here it stands for the high storage tanks.
  • Leuchtende Rohre – der Weg des Wassers als durchgehende Leitung, die Wellen laufen mit Tempo und Richtung des Durchflusses.
    Glowing pipes – the path of the water as one continuous line, the waves run with the speed and direction of the flow.
  • Altstadt und Neustadt – Rathaus, Kontore, Läden – tagsüber sehr viele Menschen.
    Old town and New town – Town hall, offices, shops – very many people by day.
  • St. Georg – Dichtes Wohnviertel an der Außenalster.
    St. Georg – Dense residential quarter on the Outer Alster.
  • Zurück im Fluss – was gereinigt ist, läuft wieder ein; flussab beginnt der Kreislauf von vorn.
    Back in the river – what has been cleaned flows back in; downstream the cycle starts again.
  • Die Stadt von innen – Rohre und Anschlüsse: Breite nach dem Durchfluss, Licht läuft vom Hochbehälter zu den Häusern.
    The city from within – pipes and connections: width by flow, light runs from the reservoir to the houses.
  • Querschnitt – der Boden öffnet sich, Leitungen liegen frei unter den Straßen.
    Cross-section – the ground opens up, pipes lie exposed beneath the streets.
  • Abwasser – Vom Haus durch den Kanal zur Kläranlage.
    Wastewater – From the house through the sewer to the plant.
  • Regenwasser – versiegelte Flächen führen ab: was nicht versickert, läuft über Straßen und Kanäle.
    Rainwater – sealed surfaces drain off: what does not soak away runs over streets and through sewers.
  • Alles auf einen Blick – Trinkwasser und Kanal zusammen: was in die Häuser hineinfließt, läuft unten wieder heraus.
    All at a glance – drinking water and sewer together: what flows into the houses runs out again below.
  • Hitzesommer – wenig Regen, mehr Verdunstung: Der Boden trocknet, die Menschen brauchen mehr, der Speicher der Stadt sinkt.
    Hot summer – little rain, more evaporation: the soil dries out, people need more, the town’s storage sinks.
  • Dürre – die Felder verdorren zuerst: Grün wird zu Stroh, die Reihen welken, die Ernte fällt aus.
    Drought – the fields wither first: green turns to straw, the rows wilt, the harvest fails.
  • Niedrigwasser – der Fluss führt nur noch wenig Wasser, wird schmal und warm; es fehlt Sauerstoff, die Fische sterben.
    Low water – the river carries very little, grows narrow and warm; oxygen runs short and the fish die.
  • Hitze über der Stadt – Grünflächen werden braun, es verdunstet viel, und alle brauchen mehr Wasser.
    Heat over the city – green spaces turn brown, much evaporates, and everyone needs more water.
  • Was bleibt – Felder und Stadt erholen sich schnell, abgestorbener und verbrannter Wald bleibt lange sichtbar.
    What remains – fields and town recover quickly, dead and burnt forest stays visible for a long time.
  • Starkregen – es wird dunkel, dichter Regen zieht über das Land, die Böden saugen sich voll.
    Heavy rain – it grows dark, dense rain sweeps over the land, the soils soak up all they can.
  • Gewitter – Blitze im Blickfeld, die Wolke leuchtet um den Einschlag von innen, die Decke reißt entlang der Sichtachse auf.
    Thunderstorm – lightning in view, the cloud lights up from within around the strike, the cover tears open along the line of sight.
  • Hochwasser nach Höhenlinien – die Aue und tief liegende Viertel laufen nach und nach voll, mit schmutzigem Schaumrand.
    Flood by contour lines – the floodplain and low-lying districts fill up bit by bit, with a dirty rim of foam.
  • Rohrbruch – die Leitung pulsiert rot, Wasser tritt aus; ein Trupp wird gerufen.
    Pipe burst – the line pulses red, water escapes; a crew is called out.
  • Abgesperrt – ein Trupp fährt hin, das Stück steht still, der Speicher trägt die Stadt, bis repariert ist.
    Shut off – a crew drives out, the section stands still, the storage carries the town until the repair is done.
  • Die Viertel beim Namen – über der Karte stehen die Stadtteile, oben Wasser in der Stadt, Speicher und die fünf Folgen.
    The districts by name – above the map stand the quarters, at the top water in the city, storage and the five consequences.
  • Altstadt und Neustadt und die Nachbarviertel – jeder Name zeigt mit einem Balken, wie gut das Viertel versorgt ist.
    Old town and New town and the neighbouring districts – each name shows with a bar how well the district is supplied.
  • Zeichen in der Karte – wird eine Folge kritisch, steht ihr Zeichen dort, wo es geschieht: Felder verdorren, Wald stirbt, kein Wasser.
    Signs on the map – when a consequence turns critical, its sign stands where it happens: fields wither, forest dies, no water.
  • Hochwasser in Zahlen – Sicherheit und Ernte fallen, das Zeichen am Fluss steht über der Stelle, die zuerst volläuft.
    Flood in figures – safety and harvest fall, the sign by the river stands over the spot that fills first.
  • Die ganze Software – oben Wasser in der Stadt und fünf Folgen, rechts das Rad des Kreislaufs, unten vier Wetterlagen und drei Hebel.
    The whole software – at the top water in the city and five consequences, on the right the wheel of the cycle, below four weather situations and three levers.
  • Hitzesommer mit einem Tipp – die Hebel fahren sichtbar dorthin, die Kamera folgt der Wirkung, unten erklärt ein Satz, was geschieht.
    Hot summer with one tap – the levers visibly move there, the camera follows the effect, below a sentence explains what is happening.
  • Ein Hebel, sofort sichtbar – Verbrauch auf Verschwendung: Die Stadt braucht mehr, der Speicher sinkt, oben zeigt ein Pfeil die Richtung.
    One lever, visible at once – consumption set to wasteful: the town needs more, the storage sinks, an arrow at the top shows the direction.
  • Das Rad erklärt – Station Fluss angetippt: Der Fluss lebt vom Grundwasser und vom Regen. In der Dürre wird er schmal und warm.
    The wheel explains – station River tapped: The river lives on groundwater and rain. In a drought it becomes narrow and warm.
  • Folgen antippen – Natur: Die Leiste oben erklärt, was das Wasser für Menschen und Natur bedeutet.
    Tap a consequence – Nature: the bar at the top explains what water means for people and nature.
  • Dürre in der Oberfläche – die Folgen färben sich rot, Zeichen stehen in der Karte, der Untertitel sagt, was als Nächstes kommt.
    Drought in the interface – the consequences turn red, signs stand on the map, the subtitle says what comes next.
  • Starkregen in der Oberfläche – Boden und Fluss im Rad steigen, das Zeichen Hochwasser steht am Fluss, Sicherheit fällt.
    Heavy rain in the interface – soil and river on the wheel rise, the flood sign stands by the river, safety falls.
  • Zwölf Wasserlandschaften – Zusammenflüsse, Talsperren und große Seen quer durch Deutschland, jede an ihrem echten Ort.
    Twelve water landscapes – confluences, dams and large lakes across Germany, each in its real place.
  • Die Einführung – vier Karten sagen, worum es geht und wie man bedient.
    The introduction – four cards say what it is about and how to use it.

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Minimal Water: Hamburg · Alster und Elbe – von der Cholera zum Grundwasser

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Basis and limits

Terrain and buildings: © OpenStreetMap contributors (ODbL), elevation: Mapzen/Tilezen Terrain Tiles (SRTM, EU-DEM). Facility locations follow OpenStreetMap and public utility information; pipe network, sizes, demand and operation are invented and simplified. Simplified educational model – not a real control system and not a planning tool.

Public sources the model is based on:

  • Terrain and buildings: © OpenStreetMap contributors (ODbL)
  • Elevation: Mapzen/Tilezen Terrain Tiles (SRTM, EU-DEM)

More areas in the model

← Minimal Water

Real are location, terrain and buildings (OpenStreetMap, heights from SRTM and EU-DEM). The position of the facilities is based on OpenStreetMap and public information; the pipe network, sizes, demand and operation are invented and simplified. It is not an operations control and not a planning tool…