GribStream

ECMWF Integrated Forecasting System - Deterministic Wave Forecast (IFS Wave)

Codice GribStream: ifswave

IFS significant wave height across its global wave grid
IFS significant wave height across the complete global wave grid, with black country boundaries. This plot was generated from the ifswave dataset.

Descrizione

IFS Wave è il modello globale delle onde di ECMWF. Usa ecWAM accoppiato con l'IFS atmosferico per simulare generazione, propagazione e dissipazione delle onde guidate dal vento.

Il modello rappresenta processi fisici come forzante del vento, whitecapping (frangimento schiumoso), interazioni non lineari onda-onda ed effetti del fondale. L'accoppiamento aiuta a catturare le retroazioni tra vento e mare, importanti per flussi aria-mare e stati di mare estremi.

IFS Wave è forzato soprattutto da venti IFS a 10 m e campi di ghiaccio marino. Le condizioni iniziali sono migliorate con assimilazione dati delle onde, inclusa altezza significativa da altimetri satellitari e osservazioni da altre piattaforme oceaniche.

I campi tipici includono altezza significativa delle onde, periodo medio, periodo di picco, direzione media, partizioni wind sea e swell, e variabili superficiali per operazioni marittime, rischio onde e ricerca.

In GribStream ifswave è l'opzione deterministica ECMWF per prodotti marini globali. Se il tuo prodotto richiede incertezza sul mare invece di un singolo scenario, IFS Wave Ensemble è il complemento diretto.

Dettagli

Dataset correlati

Parametri

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Fai clic su un parametro per vedere le varianti in una tabella compatta con selettori JSON pronti da copiare. Codici, livelli e valori dei selettori restano esattamente come li espone l'API.

cdww –Coefficient of drag with waves (dimensionless)
1 variant

Parameter ID 140233

ECMWF param DB

Wave-model drag coefficient describing the surface stress coupling between winds and waves.

  • Published with ECMWF wave-model output and useful for diagnosing air-sea momentum exchange.
Level Info Horizon Introduced Selector
sfc 0h-360h 2026-05-12
{"name":"cdww","level":"sfc","info":""}
h1012 –Significant wave height of all waves with periods from 10 to 12 seconds (m)
1 variant

Parameter ID 140114

ECMWF param DB

Significant wave height contributed by waves with periods from 10 to 12 seconds.

  • Period-band wave height fields help separate sea states by wave-period class.
Level Info Horizon Introduced Selector
sfc 0h-360h 2026-05-12
{"name":"h1012","level":"sfc","info":""}
h1214 –Significant wave height of all waves with periods from 12 to 14 seconds (m)
1 variant

Parameter ID 140115

ECMWF param DB

Significant wave height contributed by waves with periods from 12 to 14 seconds.

  • Period-band wave height fields help separate sea states by wave-period class.
Level Info Horizon Introduced Selector
sfc 0h-360h 2026-05-12
{"name":"h1214","level":"sfc","info":""}
h1417 –Significant wave height of all waves with periods from 14 to 17 seconds (m)
1 variant

Parameter ID 140116

ECMWF param DB

Significant wave height contributed by waves with periods from 14 to 17 seconds.

  • Period-band wave height fields help separate sea states by wave-period class.
Level Info Horizon Introduced Selector
sfc 0h-360h 2026-05-12
{"name":"h1417","level":"sfc","info":""}
h1721 –Significant wave height of all waves with periods from 17 to 21 seconds (m)
1 variant

Parameter ID 140117

ECMWF param DB

Significant wave height contributed by waves with periods from 17 to 21 seconds.

  • Period-band wave height fields help separate sea states by wave-period class.
Level Info Horizon Introduced Selector
sfc 0h-360h 2026-05-12
{"name":"h1721","level":"sfc","info":""}
h2125 –Significant wave height of all waves with periods from 21 to 25 seconds (m)
1 variant

Parameter ID 140118

ECMWF param DB

Significant wave height contributed by waves with periods from 21 to 25 seconds.

  • Period-band wave height fields help separate sea states by wave-period class.
Level Info Horizon Introduced Selector
sfc 0h-360h 2026-05-12
{"name":"h2125","level":"sfc","info":""}
h2530 –Significant wave height of all waves with periods from 25 to 30 seconds (m)
1 variant

Parameter ID 140119

ECMWF param DB

Significant wave height contributed by waves with periods from 25 to 30 seconds.

  • Period-band wave height fields help separate sea states by wave-period class.
Level Info Horizon Introduced Selector
sfc 0h-360h 2026-05-12
{"name":"h2530","level":"sfc","info":""}
mp2 –Mean zero-crossing wave period (s)
1 variant

Parameter ID 140221

ECMWF param DB

Mean time between sea-surface crossings of mean sea level.

  • Derived from the two-dimensional wave spectrum that combines waves of different heights, lengths, and directions.
  • Useful with wave height to estimate time under water for coastal structures.
Level Info Horizon Introduced Selector
sfc 0h-360h 2024-03-01
{"name":"mp2","level":"sfc","info":""}
mwd –Mean wave direction (Degree true)
1 variant

Parameter ID 140230

ECMWF param DB

Mean direction of ocean surface waves averaged over the wave spectrum.

  • Accounts for both wind-sea and swell components.
  • Direction is in degrees true (0 = from north, 90 = from east).
Level Info Horizon Introduced Selector
sfc 0h-360h 2024-03-01
{"name":"mwd","level":"sfc","info":""}
mwp –Mean wave period (s)
1 variant

Parameter ID 140232

ECMWF param DB

Average time between successive wave crests based on the wave spectrum.

  • Accounts for both wind-sea and swell components.
  • Useful for sea state assessments and marine engineering.
Level Info Horizon Introduced Selector
sfc 0h-360h 2024-03-01
{"name":"mwp","level":"sfc","info":""}
pp1d –Peak wave period (s)
1 variant

Parameter ID 140231

ECMWF param DB

Period of the most energetic ocean waves associated with the spectral peak.

  • Computed from the reciprocal of the frequency at the peak of the wave spectrum.
  • Includes contributions from both wind-sea and swell.
Level Info Horizon Introduced Selector
sfc 0h-360h 2024-03-01
{"name":"pp1d","level":"sfc","info":""}
swh –Significant height of combined wind waves and swell (m)
1 variant

Parameter ID 140229

ECMWF param DB

Average height of the highest one-third of wind + swell waves.

  • Defined as four times the square root of the spectral variance (integral over all frequencies and directions).
  • Used to assess sea state and structural loading offshore.
Level Info Horizon Introduced Selector
sfc 0h-360h 2024-03-01
{"name":"swh","level":"sfc","info":""}
wmb –Model bathymetry (m)
1 variant

Parameter ID 140219

ECMWF param DB

Bathymetry used by the ECMWF wave model.

  • This is a model-grid field used by the wave model, not an observed water-depth analysis.
Level Info Horizon Introduced Selector
sfc 0h-360h 2026-05-12
{"name":"wmb","level":"sfc","info":""}

Nessun parametro corrisponde alla ricerca.