API do NOAA GEFS Wave Prob

Descrição

GEFS Wave Prob transforma a dispersão do ensemble em probabilidades de ondas. Em vez de olhar apenas uma altura prevista, você pode perguntar qual é a chance de ultrapassar limiares operacionais concretos.

Esse enfoque é importante para decisões marítimas porque o custo de subestimar o estado do mar costuma ser assimétrico. Uma probabilidade moderada de condições perigosas pode mudar rotas, janelas de trabalho ou margens de segurança.

O produto se concentra em variáveis de ondas, incluindo altura significativa, com variantes de probabilidade por limiar. Valores de info do catálogo, como prob >3, ficam exatos porque fazem parte do seletor da API.

No GribStream, gefswaveprob complementa GEFS Atmos quando seu produto precisa de risco marítimo probabilístico, não apenas condições atmosféricas globais.

Detalhes

Archive begins: 2020-10-01

Fonte pública: https://www.nco.ncep.noaa.gov/pmb/products/gens/

Principais características:

Produtos probabilísticos de ondas derivados do ensemble GEFS Wave.
Permite consultar chance de ultrapassar limiares operacionais de altura de onda.
Complementa previsões determinísticas de ondas quando o risco marítimo precisa de probabilidade.

Resolução: Grade global de ondas definida pela fonte GEFS Wave.

Cobertura temporal: Ciclos globais GEFS Wave com horizontes de médio prazo quando a fonte publica.

Principais usos: Rotas marítimas, operações offshore, planejamento portuário, esportes náuticos, seguros marítimos e alertas baseados na probabilidade de ondas acima de limiares operacionais.

Datasets relacionados

Parâmetros

Clique em um parâmetro para ver as variantes em uma tabela compacta, com seletores JSON prontos para copiar. Códigos, níveis e valores do seletor ficam exatamente como a API expõe.

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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GEFS Wave Probability

Descrição

Detalhes

Datasets relacionados

Parâmetros