GribStream

NOAA Global Ensemble Forecast System - Chemistry (GEFS Chem)

Code GribStream: gefschem

Description

GEFS Chem étend la famille GEFS vers chimie atmosphérique et aérosols. Au lieu de se limiter à température, vent ou pression, il se concentre sur les champs liés à la composition de l'air et au transport de particules.

La sortie est utile quand le risque dépend de fumée, poussière, aérosols, polluants clés, visibilité ou atténuation du rayonnement solaire. Dans ces cas, une variable météorologique traditionnelle isolée ne suffit souvent pas.

Comme partie de la famille GEFS, le produit aide à raisonner sur l'incertitude du transport atmosphérique et de l'évolution chimique. Cela permet de comparer des scénarios possibles, pas seulement une trajectoire unique.

Dans GribStream, gefschem s'interroge comme n'importe quel autre dataset : coordonnées, plage temporelle et sélecteurs du catalogue, avec codes de variables et niveaux GRIB inchangés. Il convient aux produits de qualité de l'air, analyses environnementales et décisions où fumée, poussière, aérosols ou polluants changent le risque opérationnel.

Détails

Datasets liés

Paramètres

Rechercher des paramètres
0 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.

AOTK –Aerosol Optical Thickness (dimensionless)
6 variants
NOAA GRIB2 Table 4.2-0-3

Aerosol optical thickness represents the column-integrated attenuation of solar radiation by aerosols. Larger values indicate hazier conditions and reduced surface sunlight.

  • Units: dimensionless.
  • Useful for visibility, air quality, and solar energy assessments.
Level Info Horizon Introduced Selector
entire atmosphere aerosol=black carbon dry 0h-120h 2020-10-01
{"name":"AOTK","level":"entire atmosphere","info":"aerosol=black carbon dry"}
entire atmosphere aerosol=dust dry 0h-120h 2020-10-01
{"name":"AOTK","level":"entire atmosphere","info":"aerosol=dust dry"}
entire atmosphere aerosol=particulate organic matter dry 0h-120h 2020-10-01
{"name":"AOTK","level":"entire atmosphere","info":"aerosol=particulate organic matter dry"}
entire atmosphere aerosol=sea salt dry 0h-120h 2020-10-01
{"name":"AOTK","level":"entire atmosphere","info":"aerosol=sea salt dry"}
entire atmosphere aerosol=sulphate dry 0h-120h 2020-10-01
{"name":"AOTK","level":"entire atmosphere","info":"aerosol=sulphate dry"}
entire atmosphere aerosol=total aerosol 0h-120h 2020-10-01
{"name":"AOTK","level":"entire atmosphere","info":"aerosol=total aerosol"}
ASYSFK –Asymmetry Factor (Numeric)
1 variant

Asymmetry Factor (Numeric).

Level Info Horizon Introduced Selector
entire atmosphere aerosol=total aerosol 0h-120h 2020-10-01
{"name":"ASYSFK","level":"entire atmosphere","info":"aerosol=total aerosol"}
COLMD –Column-Integrated Mass Density (kg/m^2)
6 variants
NOAA GRIB2 Table 4.2-0-20

Column-integrated mass density is the total mass per unit area through the vertical column for the specified species. It summarizes column burden and is useful for transport diagnostics.

  • Units: kg/m^2.
Level Info Horizon Introduced Selector
entire atmosphere aerosol=black carbon dry 0h-120h 2020-10-01
{"name":"COLMD","level":"entire atmosphere","info":"aerosol=black carbon dry"}
entire atmosphere aerosol=dust dry 0h-120h 2020-10-01
{"name":"COLMD","level":"entire atmosphere","info":"aerosol=dust dry"}
entire atmosphere aerosol=particulate organic matter dry 0h-120h 2020-10-01
{"name":"COLMD","level":"entire atmosphere","info":"aerosol=particulate organic matter dry"}
entire atmosphere aerosol=sea salt dry 0h-120h 2020-10-01
{"name":"COLMD","level":"entire atmosphere","info":"aerosol=sea salt dry"}
entire atmosphere aerosol=sulphate dry 0h-120h 2020-10-01
{"name":"COLMD","level":"entire atmosphere","info":"aerosol=sulphate dry"}
entire atmosphere aerosol=total aerosol 0h-120h 2020-10-01
{"name":"COLMD","level":"entire atmosphere","info":"aerosol=total aerosol"}
PMTC –Particulate matter (coarse) (10^-6g/m^3)
2 variants

Particulate matter (coarse) (10^-6g/m^3).

Level Info Horizon Introduced Selector
surface aerosol=dust dry 0h-120h 2022-10-18
{"name":"PMTC","level":"surface","info":"aerosol=dust dry"}
surface aerosol=total aerosol 0h-120h 2020-10-01
{"name":"PMTC","level":"surface","info":"aerosol=total aerosol"}
PMTF –Particulate matter (fine) (10^-6g/m^3)
3 variants

Particulate matter (fine) (10^-6g/m^3).

Level Info Horizon Introduced Selector
surface aerosol=dust dry 0h-120h 2020-10-01
{"name":"PMTF","level":"surface","info":"aerosol=dust dry"}
surface aerosol=sea salt dry 0h-120h 2020-10-01
{"name":"PMTF","level":"surface","info":"aerosol=sea salt dry"}
surface aerosol=total aerosol 0h-120h 2020-10-01
{"name":"PMTF","level":"surface","info":"aerosol=total aerosol"}
SCTAOTK –Scattering Aerosol Optical Thickness (Numeric)
6 variants

Scattering Aerosol Optical Thickness (Numeric).

Level Info Horizon Introduced Selector
entire atmosphere aerosol=black carbon dry 0h-120h 2020-10-01
{"name":"SCTAOTK","level":"entire atmosphere","info":"aerosol=black carbon dry"}
entire atmosphere aerosol=dust dry 0h-120h 2020-10-01
{"name":"SCTAOTK","level":"entire atmosphere","info":"aerosol=dust dry"}
entire atmosphere aerosol=particulate organic matter dry 0h-120h 2020-10-01
{"name":"SCTAOTK","level":"entire atmosphere","info":"aerosol=particulate organic matter dry"}
entire atmosphere aerosol=sea salt dry 0h-120h 2020-10-01
{"name":"SCTAOTK","level":"entire atmosphere","info":"aerosol=sea salt dry"}
entire atmosphere aerosol=sulphate dry 0h-120h 2020-10-01
{"name":"SCTAOTK","level":"entire atmosphere","info":"aerosol=sulphate dry"}
entire atmosphere aerosol=total aerosol 0h-120h 2020-10-01
{"name":"SCTAOTK","level":"entire atmosphere","info":"aerosol=total aerosol"}
SSALBK –Single Scattering Albedo (Numeric)
1 variant

Single Scattering Albedo (Numeric).

Level Info Horizon Introduced Selector
entire atmosphere aerosol=total aerosol 0h-120h 2020-10-01
{"name":"SSALBK","level":"entire atmosphere","info":"aerosol=total aerosol"}

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