API NOAA GEFS Wave Prob

Description

GEFS Wave Prob transforme la dispersion de l'ensemble en probabilités de vagues. Au lieu de regarder seulement une hauteur de vague prévue, il permet de demander quelle est la probabilité de dépasser des seuils opérationnels concrets.

Cette approche est importante pour les décisions maritimes parce que le coût d'une sous-estimation des vagues est souvent asymétrique. Une probabilité modérée de conditions dangereuses peut changer route, fenêtre de travail ou marge de sécurité.

Le produit se concentre sur les variables de vagues, dont la hauteur significative, avec variantes de probabilité par seuil. Les valeurs info du catalogue, comme prob >3, restent exactes parce qu'elles font partie du sélecteur API.

Dans GribStream, gefswaveprob complète GEFS Atmos lorsque votre produit a besoin de risque maritime probabiliste, pas seulement de conditions atmosphériques globales.

Détails

Archive begins: 2020-10-01

Page produit: https://www.ncei.noaa.gov/products/weather-climate-models/global-forecast

Caractéristiques principales:

Estime la probabilité que la hauteur significative des vagues dépasse des seuils précis.
Utilise la dispersion de l'ensemble pour quantifier le risque maritime au lieu de fournir seulement un scénario.
Cycles 00, 06, 12 et 18 UTC avec horizons de 0 à 384 h.
Orienté vers navigation maritime, opérations offshore, planification côtière et analyse de conditions de mer dangereuses.

Résolution: Grille globale de 0.25 degré.

Couverture temporelle: Quatre cycles par jour, avec horizons de 0 à 384 h.

Usages principaux: Planification de routes maritimes, opérations offshore, gestion côtière, planification portuaire, sports nautiques, assurance maritime et alertes basées sur la probabilité que les vagues dépassent des seuils opérationnels.

Datasets liés

Paramètres

Cliquez sur un paramètre pour voir ses variantes dans une table compacte avec des sélecteurs JSON prêts à copier. Les codes, niveaux et valeurs de sélecteur restent exactement tels que l'API les expose.

HTSGW –Significant Wave Height (m)

8 variants

Significant wave height represents the average height of the highest third of waves. It is the standard metric for sea state and marine hazards.

Units: m.

Level	Info	Horizon	Introduced	Selector
`surface`	`prob >0.6`	0h-384h	2020-10-01	`{"name":"HTSGW","level":"surface","info":"prob >0.6"}`
`surface`	`prob >1`	0h-384h	2020-10-01	`{"name":"HTSGW","level":"surface","info":"prob >1"}`
`surface`	`prob >2`	0h-384h	2020-10-01	`{"name":"HTSGW","level":"surface","info":"prob >2"}`
`surface`	`prob >3`	0h-384h	2020-10-01	`{"name":"HTSGW","level":"surface","info":"prob >3"}`
`surface`	`prob >4`	0h-384h	2020-10-01	`{"name":"HTSGW","level":"surface","info":"prob >4"}`
`surface`	`prob >5.5`	0h-384h	2020-10-01	`{"name":"HTSGW","level":"surface","info":"prob >5.5"}`
`surface`	`prob >7`	0h-384h	2020-10-01	`{"name":"HTSGW","level":"surface","info":"prob >7"}`
`surface`	`prob >9`	0h-384h	2020-10-01	`{"name":"HTSGW","level":"surface","info":"prob >9"}`

PERPW –Primary Wave Mean Period (seconds)

8 variants

Primary Wave Mean Period (seconds).

Level	Info	Horizon	Introduced	Selector
`surface`	`prob >11`	0h-384h	2020-10-01	`{"name":"PERPW","level":"surface","info":"prob >11"}`
`surface`	`prob >13`	0h-384h	2020-10-01	`{"name":"PERPW","level":"surface","info":"prob >13"}`
`surface`	`prob >15`	0h-384h	2020-10-01	`{"name":"PERPW","level":"surface","info":"prob >15"}`
`surface`	`prob >17`	0h-384h	2020-10-01	`{"name":"PERPW","level":"surface","info":"prob >17"}`
`surface`	`prob >19`	0h-384h	2020-10-01	`{"name":"PERPW","level":"surface","info":"prob >19"}`
`surface`	`prob >5`	0h-384h	2020-10-01	`{"name":"PERPW","level":"surface","info":"prob >5"}`
`surface`	`prob >7`	0h-384h	2020-10-01	`{"name":"PERPW","level":"surface","info":"prob >7"}`
`surface`	`prob >9`	0h-384h	2020-10-01	`{"name":"PERPW","level":"surface","info":"prob >9"}`

SWELL –Significant Height of Swell Waves (meters)

8 variants

Significant Height of Swell Waves (meters).

Level	Info	Horizon	Introduced	Selector
`surface`	`prob >0.6`	0h-384h	2020-10-01	`{"name":"SWELL","level":"surface","info":"prob >0.6"}`
`surface`	`prob >1`	0h-384h	2020-10-01	`{"name":"SWELL","level":"surface","info":"prob >1"}`
`surface`	`prob >2`	0h-384h	2020-10-01	`{"name":"SWELL","level":"surface","info":"prob >2"}`
`surface`	`prob >3`	0h-384h	2020-10-01	`{"name":"SWELL","level":"surface","info":"prob >3"}`
`surface`	`prob >4`	0h-384h	2020-10-01	`{"name":"SWELL","level":"surface","info":"prob >4"}`
`surface`	`prob >5.5`	0h-384h	2020-10-01	`{"name":"SWELL","level":"surface","info":"prob >5.5"}`
`surface`	`prob >7`	0h-384h	2020-10-01	`{"name":"SWELL","level":"surface","info":"prob >7"}`
`surface`	`prob >9`	0h-384h	2020-10-01	`{"name":"SWELL","level":"surface","info":"prob >9"}`

SWPER –Mean Period of Swell Waves (seconds)

8 variants

Mean Period of Swell Waves (seconds).

Level	Info	Horizon	Introduced	Selector
`surface`	`prob >11`	0h-384h	2020-10-01	`{"name":"SWPER","level":"surface","info":"prob >11"}`
`surface`	`prob >13`	0h-384h	2020-10-01	`{"name":"SWPER","level":"surface","info":"prob >13"}`
`surface`	`prob >15`	0h-384h	2020-10-01	`{"name":"SWPER","level":"surface","info":"prob >15"}`
`surface`	`prob >17`	0h-384h	2020-10-01	`{"name":"SWPER","level":"surface","info":"prob >17"}`
`surface`	`prob >19`	0h-384h	2020-10-01	`{"name":"SWPER","level":"surface","info":"prob >19"}`
`surface`	`prob >5`	0h-384h	2020-10-01	`{"name":"SWPER","level":"surface","info":"prob >5"}`
`surface`	`prob >7`	0h-384h	2020-10-01	`{"name":"SWPER","level":"surface","info":"prob >7"}`
`surface`	`prob >9`	0h-384h	2020-10-01	`{"name":"SWPER","level":"surface","info":"prob >9"}`

WIND –Wind Speed (m/s)

8 variants

Wind speed is the magnitude of the horizontal wind at the specified level. It is used for transport, mixing, and hazards.

Units: m/s.

Level	Info	Horizon	Introduced	Selector
`surface`	`prob >11.31`	0h-384h	2020-10-01	`{"name":"WIND","level":"surface","info":"prob >11.31"}`
`surface`	`prob >14.39`	0h-384h	2020-10-01	`{"name":"WIND","level":"surface","info":"prob >14.39"}`
`surface`	`prob >17.48`	0h-384h	2020-10-01	`{"name":"WIND","level":"surface","info":"prob >17.48"}`
`surface`	`prob >21.07`	0h-384h	2020-10-01	`{"name":"WIND","level":"surface","info":"prob >21.07"}`
`surface`	`prob >24.67`	0h-384h	2020-10-01	`{"name":"WIND","level":"surface","info":"prob >24.67"}`
`surface`	`prob >3.6`	0h-384h	2020-10-01	`{"name":"WIND","level":"surface","info":"prob >3.6"}`
`surface`	`prob >5.65`	0h-384h	2020-10-01	`{"name":"WIND","level":"surface","info":"prob >5.65"}`
`surface`	`prob >8.74`	0h-384h	2020-10-01	`{"name":"WIND","level":"surface","info":"prob >8.74"}`

WVHGT –Significant Height of Wind Waves (meters)

8 variants

Significant Height of Wind Waves (meters).

Level	Info	Horizon	Introduced	Selector
`surface`	`prob >0.6`	0h-384h	2020-10-01	`{"name":"WVHGT","level":"surface","info":"prob >0.6"}`
`surface`	`prob >1`	0h-384h	2020-10-01	`{"name":"WVHGT","level":"surface","info":"prob >1"}`
`surface`	`prob >2`	0h-384h	2020-10-01	`{"name":"WVHGT","level":"surface","info":"prob >2"}`
`surface`	`prob >3`	0h-384h	2020-10-01	`{"name":"WVHGT","level":"surface","info":"prob >3"}`
`surface`	`prob >4`	0h-384h	2020-10-01	`{"name":"WVHGT","level":"surface","info":"prob >4"}`
`surface`	`prob >5.5`	0h-384h	2020-10-01	`{"name":"WVHGT","level":"surface","info":"prob >5.5"}`
`surface`	`prob >7`	0h-384h	2020-10-01	`{"name":"WVHGT","level":"surface","info":"prob >7"}`
`surface`	`prob >9`	0h-384h	2020-10-01	`{"name":"WVHGT","level":"surface","info":"prob >9"}`

WVPER –Mean Period of Wind Waves (seconds)

8 variants

Mean Period of Wind Waves (seconds).

Level	Info	Horizon	Introduced	Selector
`surface`	`prob >11`	0h-384h	2020-10-01	`{"name":"WVPER","level":"surface","info":"prob >11"}`
`surface`	`prob >13`	0h-384h	2020-10-01	`{"name":"WVPER","level":"surface","info":"prob >13"}`
`surface`	`prob >15`	0h-384h	2020-10-01	`{"name":"WVPER","level":"surface","info":"prob >15"}`
`surface`	`prob >17`	0h-384h	2020-10-01	`{"name":"WVPER","level":"surface","info":"prob >17"}`
`surface`	`prob >19`	0h-384h	2020-10-01	`{"name":"WVPER","level":"surface","info":"prob >19"}`
`surface`	`prob >5`	0h-384h	2020-10-01	`{"name":"WVPER","level":"surface","info":"prob >5"}`
`surface`	`prob >7`	0h-384h	2020-10-01	`{"name":"WVPER","level":"surface","info":"prob >7"}`
`surface`	`prob >9`	0h-384h	2020-10-01	`{"name":"WVPER","level":"surface","info":"prob >9"}`

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NOAA Global Ensemble Forecast System - Wave Probability (GEFS Wave Prob)

Description

Détails

Datasets liés

Paramètres