API NOAA CFS Isentropic

Description

CFS Isentropic fournit des champs du Climate Forecast System sur surfaces de température potentielle constante. Ces surfaces isentropiques aident à suivre transport de masses d'air et dynamique d'altitude sous un angle différent des niveaux de pression classiques.

Le dataset cfsipvf contient des champs comme vorticité potentielle, fonction de courant et lapse rate, c'est-à-dire le gradient thermique vertical. Ces signaux sont utiles pour jet-streams, talwegs, fronts, stabilité et couplages entre troposphère et basse stratosphère.

Dans GribStream, CFS Isentropic est utile quand une application a besoin de contexte dynamique à très long horizon sans télécharger des fichiers GRIB complets : planification aviation, diagnostics d'altitude, recherche ou comparaison avec les champs CFS Pressure.

Le schéma API reste le même que pour les autres datasets GribStream : choisissez coordonnées ou requête sur grille, plage temporelle et sélecteurs du catalogue ; les codes et valeurs de sélecteur de la source restent inchangés.

Détails

Archive begins: 2018-10-31

Page produit: https://cfs.ncep.noaa.gov/cfsv2/docs.html

Caractéristiques principales:

Champs sur surfaces de température potentielle constante pour analyse du transport de masses d'air.
Inclut vorticité potentielle, fonction de courant et lapse rate (gradient thermique vertical) pour dynamique de grande échelle.
Aide à analyser jet-stream, talwegs d'altitude, stabilité, fronts et échanges troposphère-stratosphère.
Complète CFS Pressure lorsqu'un produit a besoin d'une vue dynamique plus spécialisée.

Résolution: Grille globale de 1.0 degré.

Couverture temporelle: Quatre runs par jour ; prévisions jusqu'à 5160 h, soit environ 215 jours.

Usages principaux: Dynamique d'altitude, analyse du jet-stream, transport de masses d'air, aviation, recherche sur la vorticité potentielle, diagnostic frontal et contexte dynamique à horizon très long.

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.

LAPR –Lapse Rate (K/m)

16 variants

Lapse rate is the vertical rate of temperature decrease with height. It is a key stability metric for convection and boundary-layer mixing.

Units: K/m.

Level	Horizon	Introduced	Selector
`1000 K isentropic level`	0h-5160h	2018-10-31	`{"name":"LAPR","level":"1000 K isentropic level","info":""}`
`1250 K isentropic level`	0h-5160h	2018-10-31	`{"name":"LAPR","level":"1250 K isentropic level","info":""}`
`1500 K isentropic level`	0h-5160h	2018-10-31	`{"name":"LAPR","level":"1500 K isentropic level","info":""}`
`270 K isentropic level`	0h-5160h	2018-10-31	`{"name":"LAPR","level":"270 K isentropic level","info":""}`
`280 K isentropic level`	0h-5160h	2018-10-31	`{"name":"LAPR","level":"280 K isentropic level","info":""}`
`290 K isentropic level`	0h-5160h	2018-10-31	`{"name":"LAPR","level":"290 K isentropic level","info":""}`
`300 K isentropic level`	0h-5160h	2018-10-31	`{"name":"LAPR","level":"300 K isentropic level","info":""}`
`310 K isentropic level`	0h-5160h	2018-10-31	`{"name":"LAPR","level":"310 K isentropic level","info":""}`
`320 K isentropic level`	0h-5160h	2018-10-31	`{"name":"LAPR","level":"320 K isentropic level","info":""}`
`330 K isentropic level`	0h-5160h	2018-10-31	`{"name":"LAPR","level":"330 K isentropic level","info":""}`
`350 K isentropic level`	0h-5160h	2018-10-31	`{"name":"LAPR","level":"350 K isentropic level","info":""}`
`400 K isentropic level`	0h-5160h	2018-10-31	`{"name":"LAPR","level":"400 K isentropic level","info":""}`
`450 K isentropic level`	0h-5160h	2018-10-31	`{"name":"LAPR","level":"450 K isentropic level","info":""}`
`550 K isentropic level`	0h-5160h	2018-10-31	`{"name":"LAPR","level":"550 K isentropic level","info":""}`
`650 K isentropic level`	0h-5160h	2018-10-31	`{"name":"LAPR","level":"650 K isentropic level","info":""}`
`850 K isentropic level`	0h-5160h	2018-10-31	`{"name":"LAPR","level":"850 K isentropic level","info":""}`

MNTSF –Montgomery Stream Function (m²/s²)

16 variants

Montgomery stream function is used on isentropic surfaces to diagnose balanced flow and thermal structure, especially in tropical dynamics.

Units: m²/s².

Level	Horizon	Introduced	Selector
`1000 K isentropic level`	0h-5160h	2018-10-31	`{"name":"MNTSF","level":"1000 K isentropic level","info":""}`
`1250 K isentropic level`	0h-5160h	2018-10-31	`{"name":"MNTSF","level":"1250 K isentropic level","info":""}`
`1500 K isentropic level`	0h-5160h	2018-10-31	`{"name":"MNTSF","level":"1500 K isentropic level","info":""}`
`270 K isentropic level`	0h-5160h	2018-10-31	`{"name":"MNTSF","level":"270 K isentropic level","info":""}`
`280 K isentropic level`	0h-5160h	2018-10-31	`{"name":"MNTSF","level":"280 K isentropic level","info":""}`
`290 K isentropic level`	0h-5160h	2018-10-31	`{"name":"MNTSF","level":"290 K isentropic level","info":""}`
`300 K isentropic level`	0h-5160h	2018-10-31	`{"name":"MNTSF","level":"300 K isentropic level","info":""}`
`310 K isentropic level`	0h-5160h	2018-10-31	`{"name":"MNTSF","level":"310 K isentropic level","info":""}`
`320 K isentropic level`	0h-5160h	2018-10-31	`{"name":"MNTSF","level":"320 K isentropic level","info":""}`
`330 K isentropic level`	0h-5160h	2018-10-31	`{"name":"MNTSF","level":"330 K isentropic level","info":""}`
`350 K isentropic level`	0h-5160h	2018-10-31	`{"name":"MNTSF","level":"350 K isentropic level","info":""}`
`400 K isentropic level`	0h-5160h	2018-10-31	`{"name":"MNTSF","level":"400 K isentropic level","info":""}`
`450 K isentropic level`	0h-5160h	2018-10-31	`{"name":"MNTSF","level":"450 K isentropic level","info":""}`
`550 K isentropic level`	0h-5160h	2018-10-31	`{"name":"MNTSF","level":"550 K isentropic level","info":""}`
`650 K isentropic level`	0h-5160h	2018-10-31	`{"name":"MNTSF","level":"650 K isentropic level","info":""}`
`850 K isentropic level`	0h-5160h	2018-10-31	`{"name":"MNTSF","level":"850 K isentropic level","info":""}`

PRES –Pressure (Pa)

1 variant

Pressure is the atmospheric pressure at the specified level. It is a fundamental mass-field variable for dynamics and thermodynamics.

Units: Pa.

Level	Info	Horizon	Introduced	Selector
`surface`		0h-5160h	2018-10-31	`{"name":"PRES","level":"surface","info":""}`

PVORT –Potential Vorticity (K·m²/kg/s)

16 variants

Vorticity measures rotation of the flow. It highlights dynamical forcing, shear, and potential for cyclonic development.

Units: K·m²/kg/s.

Level	Horizon	Introduced	Selector
`1000 K isentropic level`	0h-5160h	2018-10-31	`{"name":"PVORT","level":"1000 K isentropic level","info":""}`
`1250 K isentropic level`	0h-5160h	2018-10-31	`{"name":"PVORT","level":"1250 K isentropic level","info":""}`
`1500 K isentropic level`	0h-5160h	2018-10-31	`{"name":"PVORT","level":"1500 K isentropic level","info":""}`
`270 K isentropic level`	0h-5160h	2018-10-31	`{"name":"PVORT","level":"270 K isentropic level","info":""}`
`280 K isentropic level`	0h-5160h	2018-10-31	`{"name":"PVORT","level":"280 K isentropic level","info":""}`
`290 K isentropic level`	0h-5160h	2018-10-31	`{"name":"PVORT","level":"290 K isentropic level","info":""}`
`300 K isentropic level`	0h-5160h	2018-10-31	`{"name":"PVORT","level":"300 K isentropic level","info":""}`
`310 K isentropic level`	0h-5160h	2018-10-31	`{"name":"PVORT","level":"310 K isentropic level","info":""}`
`320 K isentropic level`	0h-5160h	2018-10-31	`{"name":"PVORT","level":"320 K isentropic level","info":""}`
`330 K isentropic level`	0h-5160h	2018-10-31	`{"name":"PVORT","level":"330 K isentropic level","info":""}`
`350 K isentropic level`	0h-5160h	2018-10-31	`{"name":"PVORT","level":"350 K isentropic level","info":""}`
`400 K isentropic level`	0h-5160h	2018-10-31	`{"name":"PVORT","level":"400 K isentropic level","info":""}`
`450 K isentropic level`	0h-5160h	2018-10-31	`{"name":"PVORT","level":"450 K isentropic level","info":""}`
`550 K isentropic level`	0h-5160h	2018-10-31	`{"name":"PVORT","level":"550 K isentropic level","info":""}`
`650 K isentropic level`	0h-5160h	2018-10-31	`{"name":"PVORT","level":"650 K isentropic level","info":""}`
`850 K isentropic level`	0h-5160h	2018-10-31	`{"name":"PVORT","level":"850 K isentropic level","info":""}`

RH –Relative Humidity (percent)

16 variants

Relative humidity describes how close the air is to saturation at the specified level. High values favor cloud formation.

Units: percent.
Higher values indicate more atmospheric moisture and greater cloud or precip potential.

Level	Horizon	Introduced	Selector
`1000 K isentropic level`	0h-5160h	2018-10-31	`{"name":"RH","level":"1000 K isentropic level","info":""}`
`1250 K isentropic level`	0h-5160h	2018-10-31	`{"name":"RH","level":"1250 K isentropic level","info":""}`
`1500 K isentropic level`	0h-5160h	2018-10-31	`{"name":"RH","level":"1500 K isentropic level","info":""}`
`270 K isentropic level`	0h-5160h	2018-10-31	`{"name":"RH","level":"270 K isentropic level","info":""}`
`280 K isentropic level`	0h-5160h	2018-10-31	`{"name":"RH","level":"280 K isentropic level","info":""}`
`290 K isentropic level`	0h-5160h	2018-10-31	`{"name":"RH","level":"290 K isentropic level","info":""}`
`300 K isentropic level`	0h-5160h	2018-10-31	`{"name":"RH","level":"300 K isentropic level","info":""}`
`310 K isentropic level`	0h-5160h	2018-10-31	`{"name":"RH","level":"310 K isentropic level","info":""}`
`320 K isentropic level`	0h-5160h	2018-10-31	`{"name":"RH","level":"320 K isentropic level","info":""}`
`330 K isentropic level`	0h-5160h	2018-10-31	`{"name":"RH","level":"330 K isentropic level","info":""}`
`350 K isentropic level`	0h-5160h	2018-10-31	`{"name":"RH","level":"350 K isentropic level","info":""}`
`400 K isentropic level`	0h-5160h	2018-10-31	`{"name":"RH","level":"400 K isentropic level","info":""}`
`450 K isentropic level`	0h-5160h	2018-10-31	`{"name":"RH","level":"450 K isentropic level","info":""}`
`550 K isentropic level`	0h-5160h	2018-10-31	`{"name":"RH","level":"550 K isentropic level","info":""}`
`650 K isentropic level`	0h-5160h	2018-10-31	`{"name":"RH","level":"650 K isentropic level","info":""}`
`850 K isentropic level`	0h-5160h	2018-10-31	`{"name":"RH","level":"850 K isentropic level","info":""}`

TMP –Temperature (K)

17 variants

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

Units: K.

Level	Horizon	Introduced	Selector
`1000 K isentropic level`	0h-5160h	2018-10-31	`{"name":"TMP","level":"1000 K isentropic level","info":""}`
`1250 K isentropic level`	0h-5160h	2018-10-31	`{"name":"TMP","level":"1250 K isentropic level","info":""}`
`1500 K isentropic level`	0h-5160h	2018-10-31	`{"name":"TMP","level":"1500 K isentropic level","info":""}`
`270 K isentropic level`	0h-5160h	2018-10-31	`{"name":"TMP","level":"270 K isentropic level","info":""}`
`280 K isentropic level`	0h-5160h	2018-10-31	`{"name":"TMP","level":"280 K isentropic level","info":""}`
`290 K isentropic level`	0h-5160h	2018-10-31	`{"name":"TMP","level":"290 K isentropic level","info":""}`
`300 K isentropic level`	0h-5160h	2018-10-31	`{"name":"TMP","level":"300 K isentropic level","info":""}`
`310 K isentropic level`	0h-5160h	2018-10-31	`{"name":"TMP","level":"310 K isentropic level","info":""}`
`320 K isentropic level`	0h-5160h	2018-10-31	`{"name":"TMP","level":"320 K isentropic level","info":""}`
`330 K isentropic level`	0h-5160h	2018-10-31	`{"name":"TMP","level":"330 K isentropic level","info":""}`
`350 K isentropic level`	0h-5160h	2018-10-31	`{"name":"TMP","level":"350 K isentropic level","info":""}`
`400 K isentropic level`	0h-5160h	2018-10-31	`{"name":"TMP","level":"400 K isentropic level","info":""}`
`450 K isentropic level`	0h-5160h	2018-10-31	`{"name":"TMP","level":"450 K isentropic level","info":""}`
`550 K isentropic level`	0h-5160h	2018-10-31	`{"name":"TMP","level":"550 K isentropic level","info":""}`
`650 K isentropic level`	0h-5160h	2018-10-31	`{"name":"TMP","level":"650 K isentropic level","info":""}`
`850 K isentropic level`	0h-5160h	2018-10-31	`{"name":"TMP","level":"850 K isentropic level","info":""}`
`surface`	0h-5160h	2018-10-31	`{"name":"TMP","level":"surface","info":""}`

UGRD –U-Component of Wind (m/s)

16 variants

U‑component of wind is the east‑west component of the horizontal wind. Combine with v for speed and direction.

Units: m/s.
Combine u and v components to compute speed and direction.

Level	Horizon	Introduced	Selector
`1000 K isentropic level`	0h-5160h	2018-10-31	`{"name":"UGRD","level":"1000 K isentropic level","info":""}`
`1250 K isentropic level`	0h-5160h	2018-10-31	`{"name":"UGRD","level":"1250 K isentropic level","info":""}`
`1500 K isentropic level`	0h-5160h	2018-10-31	`{"name":"UGRD","level":"1500 K isentropic level","info":""}`
`270 K isentropic level`	0h-5160h	2018-10-31	`{"name":"UGRD","level":"270 K isentropic level","info":""}`
`280 K isentropic level`	0h-5160h	2018-10-31	`{"name":"UGRD","level":"280 K isentropic level","info":""}`
`290 K isentropic level`	0h-5160h	2018-10-31	`{"name":"UGRD","level":"290 K isentropic level","info":""}`
`300 K isentropic level`	0h-5160h	2018-10-31	`{"name":"UGRD","level":"300 K isentropic level","info":""}`
`310 K isentropic level`	0h-5160h	2018-10-31	`{"name":"UGRD","level":"310 K isentropic level","info":""}`
`320 K isentropic level`	0h-5160h	2018-10-31	`{"name":"UGRD","level":"320 K isentropic level","info":""}`
`330 K isentropic level`	0h-5160h	2018-10-31	`{"name":"UGRD","level":"330 K isentropic level","info":""}`
`350 K isentropic level`	0h-5160h	2018-10-31	`{"name":"UGRD","level":"350 K isentropic level","info":""}`
`400 K isentropic level`	0h-5160h	2018-10-31	`{"name":"UGRD","level":"400 K isentropic level","info":""}`
`450 K isentropic level`	0h-5160h	2018-10-31	`{"name":"UGRD","level":"450 K isentropic level","info":""}`
`550 K isentropic level`	0h-5160h	2018-10-31	`{"name":"UGRD","level":"550 K isentropic level","info":""}`
`650 K isentropic level`	0h-5160h	2018-10-31	`{"name":"UGRD","level":"650 K isentropic level","info":""}`
`850 K isentropic level`	0h-5160h	2018-10-31	`{"name":"UGRD","level":"850 K isentropic level","info":""}`

VGRD –V-Component of Wind (m/s)

16 variants

V‑component of wind is the north‑south component of the horizontal wind. Combine with u for speed and direction.

Units: m/s.
Combine u and v components to compute speed and direction.

Level	Horizon	Introduced	Selector
`1000 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VGRD","level":"1000 K isentropic level","info":""}`
`1250 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VGRD","level":"1250 K isentropic level","info":""}`
`1500 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VGRD","level":"1500 K isentropic level","info":""}`
`270 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VGRD","level":"270 K isentropic level","info":""}`
`280 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VGRD","level":"280 K isentropic level","info":""}`
`290 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VGRD","level":"290 K isentropic level","info":""}`
`300 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VGRD","level":"300 K isentropic level","info":""}`
`310 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VGRD","level":"310 K isentropic level","info":""}`
`320 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VGRD","level":"320 K isentropic level","info":""}`
`330 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VGRD","level":"330 K isentropic level","info":""}`
`350 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VGRD","level":"350 K isentropic level","info":""}`
`400 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VGRD","level":"400 K isentropic level","info":""}`
`450 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VGRD","level":"450 K isentropic level","info":""}`
`550 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VGRD","level":"550 K isentropic level","info":""}`
`650 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VGRD","level":"650 K isentropic level","info":""}`
`850 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VGRD","level":"850 K isentropic level","info":""}`

VVEL –Vertical Velocity (Pressure) (Pa/s)

16 variants

Vertical velocity in pressure coordinates (omega). Negative values indicate upward motion (rising air); positive values indicate subsidence.

Units: Pa/s.

Level	Horizon	Introduced	Selector
`1000 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VVEL","level":"1000 K isentropic level","info":""}`
`1250 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VVEL","level":"1250 K isentropic level","info":""}`
`1500 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VVEL","level":"1500 K isentropic level","info":""}`
`270 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VVEL","level":"270 K isentropic level","info":""}`
`280 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VVEL","level":"280 K isentropic level","info":""}`
`290 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VVEL","level":"290 K isentropic level","info":""}`
`300 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VVEL","level":"300 K isentropic level","info":""}`
`310 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VVEL","level":"310 K isentropic level","info":""}`
`320 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VVEL","level":"320 K isentropic level","info":""}`
`330 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VVEL","level":"330 K isentropic level","info":""}`
`350 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VVEL","level":"350 K isentropic level","info":""}`
`400 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VVEL","level":"400 K isentropic level","info":""}`
`450 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VVEL","level":"450 K isentropic level","info":""}`
`550 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VVEL","level":"550 K isentropic level","info":""}`
`650 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VVEL","level":"650 K isentropic level","info":""}`
`850 K isentropic level`	0h-5160h	2018-10-31	`{"name":"VVEL","level":"850 K isentropic level","info":""}`

Aucun paramètre ne correspond à la recherche.

Climate Forecast System (CFS Isentropic)

Description

Détails

Datasets liés

Paramètres