GribStream

NOAA National Blend of Models Parallel - Oceanic

Codice GribStream: nbmparoc

Altre griglie NBM Parallel: nbmpar, nbmparak, nbmparhi, nbmparpr, nbmpargu

Status: NBM v5 è già operativo in GribStream in nbmoc. In nbmoc, 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. Per integrazioni di produzione con NBM v5 usa nbmoc; i dataset nbmpar* restano riservati a future iterazioni sperimentali di NBM se NOAA torna a pubblicarle nella linea parallela.

La fonte pubblica è noaa-nbm-para-pds. GribStream mantiene la linea parallela in codici dedicati, così puoi confrontarla con la famiglia NBM operativa senza mescolarla con l'archivio usato dalle integrazioni correnti.

Riferimenti tecnici: PNS 25-45, note di configurazione Winter v5.0 e NBM Versions.

Descrizione

NBM Parallel Oceanic è il prodotto pubblico parallelo del National Blend of Models per la griglia oceanica. Serve a confronto e validazione quando NOAA pubblica una linea sperimentale accanto alla versione operativa.

Per produzione con NBM v5, il dataset consigliato è nbmoc. nbmparoc resta come riferimento di confronto e come spazio per future iterazioni sperimentali che NOAA potrebbe pubblicare nella linea parallela.

NBM v5 non è stato solo un aggiornamento di parametri. NOAA ha esteso gran parte della previsione oraria di base da 36 h a 48 h e ha rivisto il blend con più Quantile Mapping, modifiche a vento e raffiche deterministiche, e input a risoluzione più alta da ECMWF e Canada.

Per il dominio oceanico, le note NBM v5 evidenziano vento e raffiche probabilistiche corretti con Quantile Mapping, prodotti aggiornati di temperatura, punto di rugiada e nuvolosità, e una correzione dell'altezza significativa dell'onda che usa Quantile Mapping con un insieme molto più ampio di fonti in ingresso.

In GribStream, nbmparoc mantiene selettori stabili: i valori di name, level e info vengono copiati esattamente dal catalogo e non sono tradotti.

Dettagli

Dataset correlati

Parametri

Cerca parametri
0 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
NOAA GRIB2 Table 4.2-0-0

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 5 days ago
{"name":"APTMP","level":"2 m above ground","info":""}
DPT –Dew Point Temperature (K)
1 variant
NOAA GRIB2 Table 4.2-0-0

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 5 days ago
{"name":"DPT","level":"2 m above ground","info":"50% level"}
FRZSPR –Freezing Spray Indicator (boolean)
1 variant
NOAA GRIB2

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 5 days ago
{"name":"FRZSPR","level":"surface","info":""}
GUST –Wind Speed (Gust) (m/s)
1 variant
NOAA GRIB2 Table 4.2-0-2

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 5 days ago
{"name":"GUST","level":"10 m above ground","info":"50% level"}
PWAT –Precipitable Water (kg/m^2)
9 variants
NOAA GRIB2 Table 4.2-0-1

Precipitable water is the total column water vapor from the surface to the top of the atmosphere. It is a key moisture indicator.

  • Units: kg/m^2.
Level Info Horizon Introduced Selector
entire atmosphere (considered as a single layer) 1h-264h 5 days ago
{"name":"PWAT","level":"entire atmosphere (considered as a single layer)","info":""}
entire atmosphere (considered as a single layer) 10% level 1h-264h 5 days ago
{"name":"PWAT","level":"entire atmosphere (considered as a single layer)","info":"10% level"}
entire atmosphere (considered as a single layer) 50% level 1h-264h 5 days ago
{"name":"PWAT","level":"entire atmosphere (considered as a single layer)","info":"50% level"}
entire atmosphere (considered as a single layer) 90% level 1h-264h 5 days ago
{"name":"PWAT","level":"entire atmosphere (considered as a single layer)","info":"90% level"}
entire atmosphere (considered as a single layer) prob >12.7 1h-264h 5 days ago
{"name":"PWAT","level":"entire atmosphere (considered as a single layer)","info":"prob >12.7"}
entire atmosphere (considered as a single layer) prob >25.4 1h-264h 5 days ago
{"name":"PWAT","level":"entire atmosphere (considered as a single layer)","info":"prob >25.4"}
entire atmosphere (considered as a single layer) prob >38.1 1h-264h 5 days ago
{"name":"PWAT","level":"entire atmosphere (considered as a single layer)","info":"prob >38.1"}
entire atmosphere (considered as a single layer) prob >50.8 1h-264h 5 days ago
{"name":"PWAT","level":"entire atmosphere (considered as a single layer)","info":"prob >50.8"}
entire atmosphere (considered as a single layer) prob >63.5 1h-264h 5 days ago
{"name":"PWAT","level":"entire atmosphere (considered as a single layer)","info":"prob >63.5"}
TCDC –Total Cloud Cover (percent)
2 variants
NOAA GRIB2 Table 4.2-0-6

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 5 days ago
{"name":"TCDC","level":"surface","info":""}
surface ens std dev 2h-264h 5 days ago
{"name":"TCDC","level":"surface","info":"ens std dev"}
THUNC –Thunderstorm Probability (percent)
1 variant
NOAA GRIB2 Table 4.2-0-7

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 5 days ago
{"name":"THUNC","level":"entire atmosphere","info":""}
TMP –Temperature (K)
2 variants
NOAA GRIB2 Table 4.2-0-0

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 5 days ago
{"name":"TMP","level":"2 m above ground","info":"50% level"}
surface 2h-264h 5 days ago
{"name":"TMP","level":"surface","info":""}
TPWDIR –Total Precipitable Water Transport Direction (degrees)
1 variant
NOAA GRIB2 Table 4.2-0-1

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 5 days ago
{"name":"TPWDIR","level":"10 m above ground","info":""}
TPWSPD –Total Precipitable Water Transport Speed (m/s)
1 variant
NOAA GRIB2 Table 4.2-0-1

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 5 days ago
{"name":"TPWSPD","level":"10 m above ground","info":""}
TSTM –Thunderstorm Indicator (boolean)
1 variant
NOAA GRIB2

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 5 days ago
{"name":"TSTM","level":"surface","info":"probability forecast"}
VIS –Visibility (m)
1 variant
NOAA GRIB2 Table 4.2-0-7

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 5 days ago
{"name":"VIS","level":"surface","info":"50% level"}
WDIR –Wind Direction (degrees)
6 variants
NOAA GRIB2 Table 4.2-0-2

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 5 days ago
{"name":"WDIR","level":"10 m above ground","info":""}
10 m above ground 50% level 5h-264h 5 days ago
{"name":"WDIR","level":"10 m above ground","info":"50% level"}
10 m above ground 75% level 5h-264h 5 days ago
{"name":"WDIR","level":"10 m above ground","info":"75% level"}
10 m above ground 90% level 5h-264h 5 days ago
{"name":"WDIR","level":"10 m above ground","info":"90% level"}
30 m above ground 50% level 5h-264h 5 days ago
{"name":"WDIR","level":"30 m above ground","info":"50% level"}
80 m above ground 50% level 5h-264h 5 days ago
{"name":"WDIR","level":"80 m above ground","info":"50% level"}
WIND –Wind Speed (m/s)
8 variants
NOAA GRIB2 Table 4.2-0-2

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

Nessun parametro corrisponde alla ricerca.