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模拟 · Minimal Water · Dams and reservoirs

Arnsberg-Neheim · Möhne lake – the dam keeps the Ruhr topped up

A large dam as a model: the long Möhne lake, the water abstraction in the Möhne bend and two service reservoirs one above the other that supply the lower and upper zones of Neheim with pressure.

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Real are location, terrain and buildings (OpenStreetMap, heights from SRTM and EU-DEM). The pipe network, sizes, demand and dam operation are invented and simplified; quantities, processes and times are model values. It is not an operations control and not a planning tool. With your data, the model shows your site and your processes.

The Möhne dam of 1913 holds back about 134 million cubic metres; in summer it releases water and so keeps the Ruhr topped up, for the waterworks downstream as far as the Ruhr area. In the model, water is taken from the valley in the Möhne bend, mostly coming from the Möhne and so from the dam. A pumping station lifts it into the Neheim service reservoir, at 220 m, a booster fills the small tank of the upper zone at the very top, at 270 m, and the town centre between Möhne and Ruhr and the districts hang on it.

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 long lake drops from the shore, the large forests burn and the river narrows; in heavy rain the dam fills, and Möhne and Ruhr rise. In Moosfelde, only 30 m below the service reservoir, the pressure runs short first.

Real are location, terrain and buildings. The pipe network, sizes, demand and dam 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

    the dam releases water into the Möhne

  2. 02

    it is drawn and treated in the Möhne bend

  3. 03

    the pumping station lifts it to the Neheim reservoir, at about 220 m

  4. 04

    a booster fills the high-zone tank, at about 270 m

  5. 05

    into the town centre between the Möhne and Ruhr and into the districts

  6. 06

    through the sewer to the treatment plant

Water shapes the land

01

Water shapes the land

Arnsberg-Neheim · Möhne lake: The Möhne dam holds about 134 million cubic metres and keeps the Ruhr topped up in summer; in the Möhne bend drinking water is drawn for Neheim and Hüsten.

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

展示内容 为什么 适用对象
Dam wall and long lake 为什么Shows how a reservoir releases water in dry times and drops as it does. 适用对象teaching, exhibition
Möhne bend water abstraction 为什么Shows that the water in the valley comes mostly from the Möhne and so from the dam; treatment is simplified. 适用对象teaching, water supply
Neheim service reservoir at about 220 m 为什么Shows how the lower zone with town centre, Binnerfeld, Moosfelde, Hüsten and commercial area gets its pressure. 适用对象teaching, municipalities
Upper-zone service reservoir at about 270 m 为什么Shows why Rusch and Möggenberg at about 220 m need a zone of their own. 适用对象teaching, water supply
Neheim town centre between Möhne and Ruhr, Hüsten in the Ruhr valley 为什么Shows low-lying districts that have plenty of pressure. 适用对象municipalities, schools
Hüttenstraße commercial area with shift operation 为什么Shows a large consumer in the Ruhr valley. 适用对象teaching, water supply
Three controls and four weather situations 为什么Shows connections in the model, not a statement about reality. 适用对象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 Arnsberg-Neheim · Möhne lake

    A flight across the area: low angles with sky, behind the dam wall lies the long lake, in the valley the Möhne and Ruhr run together, 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

  • Möhnebogen water abstraction

    In the Möhnebogen water is drawn from the valley – most of it comes from the Möhne and so from the reservoir upstream. Here it is treated (simplified) and collected.

  • Neheim service reservoir

    Storage on the hill above the town (about 220 m). It gives the low zone its pressure: centre, Binnerfeld, Moosfelde, Hüsten and the industry.

  • High-zone reservoir

    Small tank at the very top (about 270 m) for the hillside areas – Rusch and Möggenberg.

  • Dam wall and reservoir

    The reservoir stores water. In dry times it releases water so the river does not run dry.

  • Neheim centre

    Neheim's centre between the Möhne and the Ruhr, about 160 m – low, plenty of pressure.

  • Hüsten

    District in the Ruhr valley to the south, about 170 m.

  • Binnerfeld

    Residential area south-west of the centre, about 160 m.

  • Rusch · Möggenberg

    Hillside residential areas, about 220 m – too high for the Neheim reservoir, they hang on the high zone.

  • Hüttenstraße industry

    Businesses in the Ruhr valley working in shifts.

  • Moosfelde

    Residential area above the Möhne, about 190 m – only 30 m below the reservoir: pressure gets tight here first.

  • 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 dam releases water into the Möhne
  2. 02it is drawn and treated in the Möhne bend
  3. 03the pumping station lifts it to the Neheim reservoir, at about 220 m
  4. 04a booster fills the high-zone tank, at about 270 m
  5. 05into the town centre between the Möhne and Ruhr and into the districts
  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

  • What a dam is for

    The dam stores water and releases it in dry times so the river does not run dry. In the model you see the lake drop and the effect on the river below.

    适用对象schools, universities, exhibitions

  • Two pressure zones on one slope

    The Neheim service reservoir for the lower zone, a small tank at the very top for Rusch and Möggenberg: you see why higher residential areas need a booster.

    适用对象water supply, universities, training

  • Playing through drought and heavy rain

    When the rain stays away, the lake drops from the shore; in heavy rain Möhne and Ruhr rise. You see where it gets tight first.

    适用对象civil protection, municipalities, education

  • Museum and exhibition

    A dam of 1913, a long lake and the question of how far water from the Sauerland reaches: the model shows the connection in one picture.

    适用对象museums, exhibitions, visitor centres

The course

07

The course

The course – behind the dam wall lies the long lake, in the valley the Möhne and Ruhr run together; 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 valley as a stage

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

  • 02

    From the dam to the upper zone

    Release, abstraction, pumping station, service reservoir, booster and districts 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.

  • Arnsberg-Neheim · Möhnesee: Die Möhnetalsperre staut rund 134 Millionen Kubikmeter und hält im Sommer die Ruhr auf Pegel; im Möhnebogen wird Trinkwasser für Neheim und Hüsten gewonnen.
    Arnsberg-Neheim · Möhne lake: The Möhne dam holds about 134 million cubic metres and keeps the Ruhr topped up in summer; in the Möhne bend drinking water is drawn for Neheim and Hüsten.
  • Arnsberg-Neheim · Möhnesee am Abend – tiefe Sonne, lange Schatten, das Wasser spiegelt den Himmel.
    Arnsberg-Neheim · Möhne lake in the evening – low sun, long shadows, the water mirrors the sky.
  • Morgens an der Möhne bei Neheim – Dunst liegt über dem Land, Gelände und Bebauung stammen aus Höhendaten und OpenStreetMap.
    Morning on the Möhne near Neheim – haze over the land, terrain and buildings come from elevation data and OpenStreetMap.
  • Der Lauf – hinter der Staumauer liegt der lange See, im Tal laufen Möhne und Ruhr zusammen; Wellen und Schaum ziehen in echter Zeit mit der Strömung.
    The course – behind the dam wall lies the long lake, in the valley the Möhne and Ruhr run together; 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.
  • Hinter der Mauer staut sich der See – im Tal darunter läuft nur, was die Talsperre abgibt.
    The lake backs up behind the wall – in the valley below runs only what the dam releases.
  • Innenstadt Neheim von außen – jedes Haus ein Quader, am Abend warm im Licht.
    Neheim centre from outside – every house a block, warm in the evening light.
  • Dämmerung an der Möhne bei Neheim – die Häuser werden dunkler, über dem Land liegt der letzte Schein.
    Dusk on the Möhne near Neheim – 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.
  • Die Quelle – das Wasserwerk an der Möhne: Es hängt am Fluss und an dem Grundwasser, das der Fluss nachfüllt.
    The source – the waterworks by the Möhne: it depends on the river and on the groundwater the river refills.
  • Wassergewinnung Möhnebogen – Im Möhnebogen wird Wasser aus dem Tal gewonnen – es stammt größtenteils aus der Möhne und damit aus der Talsperre oberhalb. Hier wird es aufbereitet (vereinfacht) und gesammelt.
    Möhnebogen water abstraction – In the Möhnebogen water is drawn from the valley – most of it comes from the Möhne and so from the reservoir upstream. Here it is treated (simplified) and collected.
  • Hochbehälter Neheim – Speicher auf der Höhe über der Stadt (um 220 m). Er gibt der Tiefzone den Druck: Innenstadt, Binnerfeld, Moosfelde, Hüsten und das Gewerbe.
    Neheim service reservoir – Storage on the hill above the town (about 220 m). It gives the low zone its pressure: centre, Binnerfeld, Moosfelde, Hüsten and the industry.
  • 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 Neheim – Neheims Mitte zwischen Möhne und Ruhr, um 160 m – tief gelegen, viel Druck.
    Neheim centre – Neheim's centre between the Möhne and the Ruhr, about 160 m – low, plenty of pressure.
  • 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.
  • Wasser zwischen den Häusern – wo es zuerst tief liegt, steht es zuerst; die Modellhöhe reicht bis sechs Meter über Mittelwasser.
    Water among the houses – what lies lowest floods first; the model reaches up to six metres above mean water level.
  • 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 Neheim und die Nachbarviertel – jeder Name zeigt mit einem Balken, wie gut das Viertel versorgt ist.
    Neheim 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: Arnsberg-Neheim · Möhnesee – die Talsperre hält die Ruhr auf Pegel

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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; pipe network, sizes, demand and reservoir 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 pipe network, sizes, demand and dam operation are invented and simplified; quantities, processes and times are model values. It is not an operations control and not a planning tool. With your data, the model…