European model comparison · 5 km GloFAS cell

Seine · Seine

No model value

River profile3 positioned points

official gauge model point259 km covered

Bed elevation is vertical. Circle size follows current discharge. Select a point to locate its reading on the map.

Selected model-cell discharge-

m³/s

Model P10 -Model P20 -Seasonal median -

No model value

The model feed has no discharge for this date - status is not scored.

GloFAS v4 via Open-Meteo · no cell selected · model day 2026-09-27

Methodology & exact calculation- m³/s against model P10 -, model P20 - and the seasonal median -

Open methodology

Seine model-cell comparison

The selected model-cell discharge is compared with lower-tail percentile boundaries for the same calendar month, derived from that cell's stored GloFAS climatology. P10 and P20 determine the label; the median only positions the bar.

Formulabelow model P10 if Q < model P10; model P10-P20 if model P10 ≤ Q < model P20; at or above model P20 if Q ≥ model P20

Selected model-cell discharge: - m³/s
Model discharge P10: - m³/s
Model discharge P20: - m³/s
Seasonal model median: - m³/s

Published resultSeine: No model value

Data & provenanceGloFAS v4 via Open-Meteo · stored climatology for the selected model cell

LimitThe model value for this day is compared with this exact cell’s stored monthly GloFAS v4 climatology. Below P10, P10-P20, and at or above P20 are European model-comparison bands. P10 means the 10th percentile of that model record; it is not Q355, Q364, or a statutory minimum residual flow.

Mapped river structureselect a river to zoom to it

Seine is the basin trunk and reaches the English Channel.

Sampled cellsexact model values

Detailed river viewSeine source-to-sea cascadeOpen cascade

Back to mapRiver statistics

RiverData.org · Rivers

Seine · official main stem

The Seine on physical national-network gauges, ordered upstream to outlet on one shared profile axis. Side rivers drop in from above with the flow they deliver, each arrow landing on the water where it joins; reservoirs and their latest operator readings sit on the way down.

Seine104 gauges · FranceOpen map Embed this map

Loading gauge location map…

Gauge locationsSelect a marker for its name

RiversCurrently viewingSeine107 gaugesstation map1 reporting country

Switch river

Loading official river coverage for the selector...

Unbenchmarked

None of the 104 gauges on this stem carries an operator threshold or a stored seasonal reference, so flow is shown but not judged.

Mapped gauge reach334 km · 161 m fall

Bed profileModeled interpolated · 3 anchors3 republished duplicates dropped

Official gauges104 France 104

Upstream to outlet flow0.09 to 131 m³/s

Known tributaries5 · 0 gauged

River power now8 MW · 10/103 reaches

Nuclear draw≈6 m³/s withdrawal · estimated · 1 plant · 4 m³/s consumed

Seine · long profileelevation and distance · water band thickness = discharge · colour = flow vs seasonal normal

Embed this cascade Reach power

Live nowFlow 14/104 gauges reporting11:40 UTC

coloured strip: river discharge vs long-term normal (100% = normal for this season, not reservoir fill)no long-term referencewater band thickness = dischargereach power (ρgQΔh)flow drops downstreamside river joining · live dischargenational hydrometric gauge

Seine basin · Lac d’Orient

How reservoir releases reach the river

Reservoir details

Water leaves the Seine through an intake canal and enters Lac d’Orient. A separate release canal returns stored water through two branches around Troyes. Diversion can reduce flow during floods; releases can support the river during dry periods.

SeineIntake near Bar-sur-Seine

Lac d’OrientStorage beside the river

TroyesRelease canals return to the Seine

Loading dated operator observations…

Operator explanation and latest daily bulletin. The daily bulletin may be newer than the GIS series used for this date-aligned comparison.

The basin behind the river

People, dams and institutions

Basin context loads as you approach this section.

Main-stem gaugessource to outlet · select one for its sensor detail

Reference gauge: La Seine à Vernon - Station débitmétrique (>2006)131 m³/s · the furthest-downstream main-stem gauge currently reporting flow, so it captures the largest accumulated upstream reach.

Side rivers joining the main stemarrow width = live inflow · % = share of nearby main-stem flow

Gauge coordinates and current discharge come from the named national hydrometric networks. The shared distance axis projects those GPS stations onto the dashboard’s sparse upstream-to-outlet spine; this is a profile axis, not surveyed navigation kilometre. The bed is interpolated between the dashboard’s anchor cells, because the registers on this river publish no gauge datum to draw it from. Where one register republishes another’s station, the two rows are one gauge and only the fuller record is plotted. River power is gravitational power carried by the flow (ρ·g·Q·Δh), not metered generation - it is a floor rather than a total, because a reach whose downstream gauge reports no discharge contributes nothing. The navigability line is an indicative planning threshold, not an official fairway forecast.

Map layersexpand

major river · clickable tributary / branch · clickable selected downstream path final outlet latest official Q European model comparison operating nuclear plant core reservoirEurope · 27 Sept 2026