GribStream

NOAA National Blend of Models - Oceanic

Codice GribStream: nbmoc

NBM 2 meter temperature across its complete oceanic product grid with black boundaries — NBM 2 m temperature across the complete populated footprint at the 10 km spacing used by the oceanic product family, with black boundaries. This coverage reference was generated from nbm for the nbmoc page; available variables may differ.

Altre griglie NBM: nbm, nbmak, nbmhi, nbmpr, nbmgu

Status NBM v5: NBM v5 è già operativo in questo dataset. Nell'archivio GribStream, i run precedenti a 2026-05-05 12:00 UTC contengono la versione operativa precedente di NBM; i run da 2026-05-05 12:00 UTC in poi usano NBM v5.

I campi di accumulo come APCP, ASNOW e FICEAC, quando presenti, continuano nella finestra oraria estesa di NBM v5 e poi proseguono in /timeseries con periodi di accumulo più lunghi, senza lacune o finestre duplicate.

Descrizione

NBM Oceanic è il prodotto regionale del National Blend of Models per la regione oceanica. Porta la post-elaborazione operativa NOAA su una griglia dedicata al dominio, invece di usare la griglia CONUS principale.

NBM combina più fonti di previsione e applica calibrazione statistica per produrre campi più consistenti di quelli di un singolo modello non calibrato. L'obiettivo è offrire una base previsionale più stabile per prodotti operativi e decisioni sensibili al rischio meteo.

Il sistema usa tecniche come Model Output Statistics (MOS), Quantile Mapping e pesatura ensemble. Nei domini regionali, questo blend mantiene un contesto locale utile senza cambiare il modo in cui si interroga l'API.

In GribStream, nbmoc preserva codici variabile, livelli e valori di info del catalogo. Puoi usare gli stessi endpoint e selettori degli altri codici NBM, cambiando solo il codice del modello.

Dettagli

Archivio da: 2020-10-01
Pagina prodotto: https://vlab.noaa.gov/web/mdl/nbm/
Caratteristiche principali:
- Estende la base operativa di NBM v5 al dominio regionale la regione oceanica.
- Pubblica cicli orari per prodotti che richiedono aggiornamenti frequenti.
- Combina modelli globali, regionali, deterministici ed ensemble in una previsione calibrata.
- Usa gli stessi schemi di richiesta GribStream del NBM CONUS, con un proprio codice dataset.
Risoluzione: Circa 10 km sulla griglia oceanica.
Copertura temporale: Aggiornamenti orari; gli orizzonti di previsione arrivano a 264 h, circa 11 giorni, quando la fonte pubblica quei lead time.
Usi principali: Pianificazione marina, gestione costiera, operazioni offshore, rotte di navigazione, assicurazioni marittime, energia, turismo e prodotti che richiedono NBM sull'oceano.

Dataset correlati

Parametri

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.

APTMP –Apparent Temperature (K)

1 variant

Apparent temperature combines air temperature, humidity, and wind to estimate how hot or cold it feels to humans. It is useful for heat and cold stress assessments.

Units: K.

Level	Info	Horizon	Introduced	Selector
`2 m above ground`		2h-264h	2026-05-05	`{"name":"APTMP","level":"2 m above ground","info":""}`

DPT –Dew Point Temperature (K)

1 variant

Dew point temperature is the temperature at which the air becomes saturated. It is a direct measure of moisture content.

Units: K.
When dew point is close to air temperature, fog or low cloud potential increases.

Level	Info	Horizon	Introduced	Selector
`2 m above ground`	`50% level`	2h-264h	2026-05-05	`{"name":"DPT","level":"2 m above ground","info":"50% level"}`

FRZSPR –Freezing Spray Indicator (boolean)

1 variant

Freezing spray indicator flags marine conditions favorable for ice accretion on vessels. It depends on wind, air temperature, and wave conditions.

Units: boolean.

Level	Info	Horizon	Introduced	Selector
`surface`		2h-264h	2024-04-15	`{"name":"FRZSPR","level":"surface","info":""}`

GUST –Wind Speed (Gust) (m/s)

1 variant

Wind gust is the peak short-duration wind speed. It captures brief, hazardous bursts that can exceed sustained winds.

Units: m/s.

Level	Info	Horizon	Introduced	Selector
`10 m above ground`	`50% level`	2h-264h	2020-10-01	`{"name":"GUST","level":"10 m above ground","info":"50% level"}`

HTSGW –Significant Wave Height (m)

5 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`		2h-240h	2020-10-01	`{"name":"HTSGW","level":"surface","info":""}`
`surface`	`10% level`	2h-240h	2023-01-16	`{"name":"HTSGW","level":"surface","info":"10% level"}`
`surface`	`50% level`	2h-240h	2023-01-16	`{"name":"HTSGW","level":"surface","info":"50% level"}`
`surface`	`90% level`	2h-240h	2023-01-16	`{"name":"HTSGW","level":"surface","info":"90% level"}`
`surface`	`ens std dev`	2h-240h	2020-10-01	`{"name":"HTSGW","level":"surface","info":"ens std dev"}`

TCDC –Total Cloud Cover (percent)

2 variants

Total cloud cover is the fraction of the grid cell covered by clouds at any level. It influences radiation, temperature, and visibility.

Units: percent.
Cloud fraction influences surface radiation and temperature.

Level	Info	Horizon	Introduced	Selector
`surface`		2h-264h	2026-05-05	`{"name":"TCDC","level":"surface","info":""}`
`surface`	`ens std dev`	2h-264h	2026-05-05	`{"name":"TCDC","level":"surface","info":"ens std dev"}`

THUNC –Thunderstorm Probability (percent)

1 variant

Thunderstorm probability gives the chance of thunderstorms during the valid period. It is used for convective hazard guidance.

Units: percent.

Level	Info	Horizon	Introduced	Selector
`entire atmosphere`		1h-36h	2023-01-16	`{"name":"THUNC","level":"entire atmosphere","info":""}`

TMP –Temperature (K)

2 variants

Air temperature is the thermal state of the atmosphere at the specified level. It influences density, stability, and energy exchange.

Units: K.

Level	Info	Horizon	Introduced	Selector
`2 m above ground`	`50% level`	2h-264h	2020-10-01	`{"name":"TMP","level":"2 m above ground","info":"50% level"}`
`surface`		2h-264h	2020-10-01	`{"name":"TMP","level":"surface","info":""}`

TPWDIR –Total Precipitable Water Transport Direction (degrees)

1 variant

Total precipitable water transport direction is the direction of column‑integrated moisture flux. It indicates moisture transport pathways.

Units: degrees.

Level	Info	Horizon	Introduced	Selector
`10 m above ground`		2h-167h	2024-05-14	`{"name":"TPWDIR","level":"10 m above ground","info":""}`

TPWSPD –Total Precipitable Water Transport Speed (m/s)

1 variant

Total precipitable water transport speed is the magnitude of column‑integrated moisture transport. It highlights atmospheric river strength.

Units: m/s.

Level	Info	Horizon	Introduced	Selector
`10 m above ground`		2h-167h	2024-05-14	`{"name":"TPWSPD","level":"10 m above ground","info":""}`

TSTM –Thunderstorm Indicator (boolean)

1 variant

Thunderstorm indicator flags the presence of thunderstorm conditions in the grid cell. It is used as a categorical hazard field.

Units: boolean.

Level	Info	Horizon	Introduced	Selector
`surface`	`probability forecast`	1h-192h	2020-10-01	`{"name":"TSTM","level":"surface","info":"probability forecast"}`

VIS –Visibility (m)

1 variant

Horizontal visibility at the surface. Lower values indicate reduced visibility due to fog, precipitation, or aerosols.

Units: m.

Level	Info	Horizon	Introduced	Selector
`surface`	`50% level`	2h-264h	2020-10-01	`{"name":"VIS","level":"surface","info":"50% level"}`

WDIR –Wind Direction (degrees)

6 variants

Wind direction indicates the direction from which the wind is blowing at the specified level.

Units: degrees.

Level	Info	Horizon	Introduced	Selector
`10 m above ground`		5h-264h	2020-10-01	`{"name":"WDIR","level":"10 m above ground","info":""}`
`10 m above ground`	`50% level`	5h-264h	2020-10-01	`{"name":"WDIR","level":"10 m above ground","info":"50% level"}`
`10 m above ground`	`75% level`	5h-264h	2020-10-01	`{"name":"WDIR","level":"10 m above ground","info":"75% level"}`
`10 m above ground`	`90% level`	5h-264h	2020-10-01	`{"name":"WDIR","level":"10 m above ground","info":"90% level"}`
`30 m above ground`	`50% level`	5h-264h	2020-10-01	`{"name":"WDIR","level":"30 m above ground","info":"50% level"}`
`80 m above ground`	`50% level`	5h-264h	2020-10-01	`{"name":"WDIR","level":"80 m above ground","info":"50% level"}`

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
`10 m above ground`		5h-264h	2020-10-01	`{"name":"WIND","level":"10 m above ground","info":""}`
`10 m above ground`	`10% level`	2h-264h	2020-10-01	`{"name":"WIND","level":"10 m above ground","info":"10% level"}`
`10 m above ground`	`25% level`	2h-264h	2020-10-01	`{"name":"WIND","level":"10 m above ground","info":"25% level"}`
`10 m above ground`	`50% level`	2h-264h	2020-10-01	`{"name":"WIND","level":"10 m above ground","info":"50% level"}`
`10 m above ground`	`75% level`	2h-264h	2020-10-01	`{"name":"WIND","level":"10 m above ground","info":"75% level"}`
`10 m above ground`	`90% level`	2h-264h	2020-10-01	`{"name":"WIND","level":"10 m above ground","info":"90% level"}`
`30 m above ground`	`50% level`	2h-264h	2020-10-01	`{"name":"WIND","level":"30 m above ground","info":"50% level"}`
`80 m above ground`	`50% level`	2h-264h	2020-10-01	`{"name":"WIND","level":"80 m above ground","info":"50% level"}`

Nessun parametro corrisponde alla ricerca.