European model comparison · 5 km GloFAS cell

Shannon · Shannon

No model value

River profile3 positioned points

official gauge model point143 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 2026-09-28

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

Open methodology

Shannon 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 resultShannon: 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

Shannon is the basin trunk and reaches the Atlantic Ocean.

Sampled cellsexact model values

Detailed river viewShannon source-to-sea cascadeOpen cascade

Back to mapRiver statistics

RiverData.org · Rivers

Shannon · official gauges, modeled flow

The Shannon at named physical gauges; the operator supplies station geometry and stage while GloFAS supplies discharge. Open a point for the linked operator station and its model-backed flow.

Shannon13 gauges · IrelandOpen map Embed this map

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Gauge locationsSelect a marker for its name

RiversCurrently viewingShannon15 gaugesstation map1 reporting country

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Unbenchmarked

None of the 13 gauges on this stem carries an operator threshold or a stored seasonal reference, so flow is shown but not judged.

Mapped gauge reach145 km · 16 m fall

Bed profileMeasured gauge datums2 republished duplicates dropped

Gauge sites13 Ireland 13

Upstream to outlet flow- to - m³/s

Known tributaries4 · 0 gauged

River power now0 MW · 0/12 reaches

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

Embed this cascade Reach power

Live nowFlow 0/13 gauges reporting

coloured strip: river discharge vs long-term normal (100% = normal for this season, not reservoir fill)water band thickness = dischargereach power (ρgQΔh)flow drops downstreamside river joining · live dischargeofficial gauge position · GloFAS discharge

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

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

Named gauge positions, links and any displayed water level come from the national operator. Discharge is the dashboard’s daily GloFAS value interpolated between its tracked cells; it is not an official Po flow observation. Distance uses that same sparse model spine, and so does the bed unless the operator publishes a gauge datum for it. 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 · 28 Sept 2026