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シミュレーション · Minimal Water · Dams and reservoirs

Haltern am See – reservoir and waterworks

A reservoir in flat country as a model: water that seeps through sand and is filtered, a works at the lake with a deep tank, and a water tower on the slope that holds the pressure for the town.

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Trailer

Real are location, terrain and buildings (OpenStreetMap, heights from SRTM and EU-DEM). The water tower, the pipe network, sizes and demand are invented and simplified, and treatment is a feed-in with limited capacity. It is not an operations control and not a planning tool. With your data, the model shows your site and your processes.

The Haltern reservoir stores water for one of the largest waterworks in Germany; it seeps through the sand of the Haard and the Hohe Mark and is filtered naturally on the way. In the model the works at the lake treats the water and collects it in the deep tank, and pumps push it through the main pipe to the town. In flat country the pressure comes from the height of a water tower on the slope, which holds the network pressure and buffers peaks; the wastewater runs through the sewer to the sewage works.

Three controls move the whole landscape: rain, heat and consumption, plus the weather situations normal year, hot summer, drought and heavy rain. In a drought the lake runs dry from the shore, fields and woods wither; in heavy rain it fills, and the town's sewers reach their limit. The estate on the slope, at about 63 m, lies close to the tower height and reacts sensitively to the level in the tower.

Real are location, terrain and buildings; the position of the waterworks is based on OpenStreetMap. The tower, the pipe network, sizes and demand 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

    the reservoir stores the water

  2. 02

    it seeps through the sand and is filtered

  3. 03

    the works on the lake treat it and collect it in the low-level tank

  4. 04

    pumps push it through the main to the town

  5. 05

    the hillside water tower holds the pressure

  6. 06

    through the sewer to the treatment plant

Water shapes the land

01

Water shapes the land

Haltern am See: Lake Haltern stores water for one of the largest waterworks in Germany; a hillside water tower holds the pressure in the flat country.

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
Reservoir with falling water level なぜShows how a lake holds water for dry times and drops when the rain stays away. 対象teaching, exhibition
Waterworks at the reservoir with deep tank なぜShows where the water is collected; treatment is a simplified feed-in. 対象teaching, water supply
Pumps and main pipe to the town なぜShows how the water is pushed into town without a fall. 対象teaching, municipalities
Water tower on the slope なぜShows how a high tank holds the network pressure and buffers peaks. 対象teaching, water supply
Town centre, Gewerbe West commercial area and estate on the slope なぜShows districts at about 47 m to 63 m; the estate on the slope is sensitive to the level in the tower. 対象municipalities, teaching
Sewer and sewage works なぜShows where the wastewater goes and when the plant overflows in a storm. 対象municipalities, civil protection
Three controls and four 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

Forest fire – in drought and great heat a glowing front eats through the forest, rain puts it out.

Films from the model

  • Above Haltern am See

    A flight across the area: low angles with sky, the reservoir in front of the town, the waterworks on its shore, 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, river and lake sink, the forest burns – 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

  • Lakeside waterworks

    Treats water from the reservoir lake and collects it in the low tank. Treatment is not simulated – simplified supply with limited capacity.

  • Hillside water tower

    In flat land pressure comes from the height of the tower: it holds network pressure and buffers peaks. (Schematic, invented.).

  • Lake

    The lake holds water for dry times; in the model its level sinks when the rain stays away.

  • Town centre

    Old town and residential areas, about 48 m.

  • West industry

    Large consumer with shift work, about 47 m.

  • Hillside estate

    Houses on the slope, about 63 m – close to tower height, sensitive to the tower level.

  • Treatment plant

    The treatment plant cleans the waste water and returns it to the river. In a storm it overflows.

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. 01the reservoir stores the water
  2. 02it seeps through the sand and is filtered
  3. 03the works on the lake treat it and collect it in the low-level tank
  4. 04pumps push it through the main to the town
  5. 05the hillside water tower holds the pressure
  6. 06through the sewer 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. 04the forest dies and burns, rain puts it out
  5. 05the lake sinks and dries out from the shore
  6. 06water runs short in the town, the storage empties
  7. 07rain 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

  • How sand filters water

    The water seeps through the sand of the Haard and the Hohe Mark and is filtered naturally on the way. You see the path from the lake via the works into town.

    対象schools, universities, exhibitions

  • What a water tower is for in flat country

    Where there is no fall, the pressure comes from the height of the tower. The model shows how it holds the network pressure, buffers peaks and which estate reacts first.

    対象water supply, universities, training

  • Playing through drought and heavy rain

    The lake drops from the shore, fields and woods wither; in heavy rain it fills and the sewers reach their limit. You see what gets tight first.

    対象civil protection, municipalities, education

  • Museum and exhibition

    A lake, a works and a town on a plain: the model shows how water gets its pressure without a mountain.

    対象museums, exhibitions, visitor centres

The course

07

The course

The course – the reservoir in front of the town, the waterworks on its shore; 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.
  • Forest fire: The dry forest is burning. Fire crews are on their way – but without water there is nothing to fight it with.
  • Tree dieback: The trees are dying. It takes decades for a forest to grow back.
  • Lake almost empty: The reservoir is almost empty. It supported the river – now the water for dry times is missing.
  • 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 landscape as a stage

    Lake, woods and town stand on terrain from OpenStreetMap and elevation data. You show the place as it lies, not as a diagram.

  • 02

    From the lake to the tower, step by step

    Seepage, works, deep tank, main pipe and water tower can be shown one by one. You understand the path before you change anything.

  • 03

    Situations without damage

    Drought, 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.

  • Haltern am See: Der Halterner Stausee speichert Wasser für eines der größten Wasserwerke Deutschlands; ein Wasserturm am Hang hält im flachen Land den Druck.
    Haltern am See: Lake Haltern stores water for one of the largest waterworks in Germany; a hillside water tower holds the pressure in the flat country.
  • Haltern am See am Abend – tiefe Sonne, lange Schatten, das Wasser spiegelt den Himmel.
    Haltern am See in the evening – low sun, long shadows, the water mirrors the sky.
  • Morgens am Stausee in Haltern – Dunst liegt über dem Land, Gelände und Bebauung stammen aus Höhendaten und OpenStreetMap.
    Morning at the reservoir in Haltern – haze over the land, terrain and buildings come from elevation data and OpenStreetMap.
  • Der Lauf – der Stausee vor der Stadt, das Wasserwerk an seinem Ufer; Wellen und Schaum ziehen in echter Zeit mit der Strömung.
    The course – the reservoir in front of the town, the waterworks on its shore; 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.
  • Der See als Speicher – er hält Wasser für trockene Zeiten; im Modell sinkt sein Spiegel, wenn der Regen ausbleibt.
    The lake as storage – it holds water for dry times; in the model its level sinks when the rain stays away.
  • Innenstadt von außen – jedes Haus ein Quader, am Abend warm im Licht.
    Town centre from outside – every house a block, warm in the evening light.
  • Dämmerung am Stausee in Haltern – die Häuser werden dunkler, über dem Land liegt der letzte Schein.
    Dusk at the reservoir in Haltern – the houses grow darker, the last glow lies over the land.
  • Wald – Laubbäume mit Stamm und Krone, Nadelholz in Beständen; hier beginnt der Kreislauf mit dem Regen, der im Boden bleibt.
    Forest – deciduous trees with trunk and crown, conifers in stands; here the cycle begins with the rain that stays in the soil.
  • 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.
  • Haltern am See schräg von oben – der ganze Ausschnitt als Modell aus Quadern, das Netz spielt in seiner Mitte.
    Haltern am See from above at an angle – the whole area as a model of blocks, with the network at its centre.
  • Die Quelle – das Wasser kommt aus dem See; er ist der Speicher des Gebiets.
    The source – the water comes from the lake; it is the area’s storage.
  • Wasserwerk am Stausee – Bereitet Wasser aus dem Stausee auf und sammelt es im Tiefbehälter. Die Aufbereitung selbst wird nicht simuliert – vereinfachte Einspeisung mit begrenzter Leistung.
    Lakeside waterworks – Treats water from the reservoir lake and collects it in the low tank. Treatment is not simulated – simplified supply with limited capacity.
  • Wasserturm am Hang – Im flachen Land kommt der Druck aus der Höhe des Turms: Er hält den Netzdruck und puffert Spitzen. (Schematisch, frei erfunden.)
    Hillside water tower – In flat land pressure comes from the height of the tower: it holds network pressure and buffers peaks. (Schematic, invented.)
  • 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.
  • Innenstadt – Altstadt und Wohngebiete, um 48 m.
    Town centre – Old town and residential areas, about 48 m.
  • Siedlung am Hang – Einfamilienhäuser am Hang, um 63 m – nah an der Turmhöhe, empfindlich für den Pegel im Turm.
    Hillside estate – Houses on the slope, about 63 m – close to tower height, sensitive to the tower level.
  • Die Kläranlage reinigt das Abwasser und gibt es dem Fluss zurück. Bei Unwetter läuft sie über.
    The treatment plant cleans the waste water and returns it to the river. In a storm it overflows.
  • 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.
  • Der Kanal endet an der Kläranlage – im Normaljahr reinigt sie alles, bei Unwetter läuft sie über.
    The sewer ends at the treatment plant – in a normal year it cleans everything, in a storm it overflows.
  • 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.
  • Waldbrand – in Dürre und großer Hitze frisst sich eine glühende Front durch den Wald, Regen löscht.
    Forest fire – in drought and great heat a glowing front eats through the forest, rain puts it out.
  • Rauch über dem Land – die Herde tragen dunkle Säulen, vom Feuer durchleuchtet, weit sichtbar.
    Smoke over the land – the fires carry dark columns, lit from within, visible from afar.
  • Der See sinkt – er hat den Fluss gestützt, vom Ufer her fällt der Grund trocken; jetzt fehlt das Wasser für trockene Zeiten.
    The lake sinks – it has supported the river, the bed dries out from the shore; now the water for dry times is missing.
  • 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.
  • Innenstadt und die Nachbarviertel – jeder Name zeigt mit einem Balken, wie gut das Viertel versorgt ist.
    Town centre 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.
  • Kläranlage und Zulauf – am Kanal steht, wie viel gerade ankommt, und ob sie überläuft.
    Treatment plant and inflow – on the sewer it says how much is arriving and whether it overflows.
  • 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: Haltern am See – Stausee und Wasserwerk

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Basis and limits

Terrain and buildings: © OpenStreetMap contributors (ODbL), elevation: Mapzen/Tilezen Terrain Tiles (SRTM, EU-DEM). Waterworks location follows OpenStreetMap; tower, pipe network, sizes and demand 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 water tower, the pipe network, sizes and demand are invented and simplified, and treatment is a feed-in with limited capacity. It is not an operations control and not a planning tool. With your data, the mod…