Geopotential height is the altitude of a pressure surface in the atmosphere. It is the primary field for identifying ridges, troughs, and large‑scale flow patterns.
- Units: gpm.
GribStream
Code GribStream: aigefspres
Statut opérationnel : NOAA a mis en production AIGFS v1.0 et AIGEFS v1.0 le 17 décembre 2025, avec HGEFS. Dans GribStream, ces datasets sont la ligne opérationnelle NOAA actuelle pour la prévision globale basée sur l'IA ; graphcast reste une archive expérimentale historique.
Références techniques : NOAA EAGLE AWS Open Data Registry, produits NCEP AIGEFS, distribution NOMADS, NWS SCN 25-89 et NOAA/NCEP Office Note 521.
AIGEFS Pressure est le produit sur niveaux de pression de l'AI Global Ensemble Forecast System de la NOAA/NCEP. La NOAA a mis AIGEFS v1.0 en production le 17 décembre 2025 ; ce dataset fournit la structure verticale de l'atmosphère pour chacun de ses 31 membres.
NOAA décrit la famille AI-GFS comme une prévision basée sur GraphCast. Dans AIGEFS, cette prévision tourne comme ensemble, ce qui permet de comparer les scénarios membre par membre avec GEFS, les ensembles ECMWF et les prévisions globales déterministes basées sur l'IA.
La valeur principale n'est pas seulement une prévision d'IA rapide, mais la mesure de l'incertitude en altitude : où les scénarios divergent, où ils restent cohérents et quelles plages sont plausibles pour une Lead Time (horizon de prévision) donnée.
aigefspres contient vent U/V, température, hauteur géopotentielle, humidité spécifique et vitesse verticale sur niveaux de pression 50, 100, 150, 200, 250, 300, 400, 500, 600, 700, 850, 925 et 1000 mb, pour les membres 0 à 30.
Il tourne sur grille globale de 0.25 degré, avec runs 00/06/12/18 UTC et pas de 6 h jusqu'à 384 h. Pour les clients GribStream, AIGEFS Pressure est utile quand le risque dépend des motifs en altitude : steering flow, profils thermiques, couches d'humidité, ondes moyen terme, cisaillement ou trajectoires probables.
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.
Geopotential height is the altitude of a pressure surface in the atmosphere. It is the primary field for identifying ridges, troughs, and large‑scale flow patterns.
| Level | Info | Horizon | Introduced | Selector |
|---|---|---|---|---|
100 mb |
0h-384h | 2025-06-01 |
{"name":"HGT","level":"100 mb","info":""}
|
|
1000 mb |
0h-384h | 2025-06-01 |
{"name":"HGT","level":"1000 mb","info":""}
|
|
150 mb |
0h-384h | 2025-06-01 |
{"name":"HGT","level":"150 mb","info":""}
|
|
200 mb |
0h-384h | 2025-06-01 |
{"name":"HGT","level":"200 mb","info":""}
|
|
250 mb |
0h-384h | 2025-06-01 |
{"name":"HGT","level":"250 mb","info":""}
|
|
300 mb |
0h-384h | 2025-06-01 |
{"name":"HGT","level":"300 mb","info":""}
|
|
400 mb |
0h-384h | 2025-06-01 |
{"name":"HGT","level":"400 mb","info":""}
|
|
50 mb |
0h-384h | 2025-06-01 |
{"name":"HGT","level":"50 mb","info":""}
|
|
500 mb |
0h-384h | 2025-06-01 |
{"name":"HGT","level":"500 mb","info":""}
|
|
600 mb |
0h-384h | 2025-06-01 |
{"name":"HGT","level":"600 mb","info":""}
|
|
700 mb |
0h-384h | 2025-06-01 |
{"name":"HGT","level":"700 mb","info":""}
|
|
850 mb |
0h-384h | 2025-06-01 |
{"name":"HGT","level":"850 mb","info":""}
|
|
925 mb |
0h-384h | 2025-06-01 |
{"name":"HGT","level":"925 mb","info":""}
|
Specific humidity is the mass of water vapor per mass of air at the specified level. It is central to moisture transport.
| Level | Info | Horizon | Introduced | Selector |
|---|---|---|---|---|
100 mb |
0h-384h | 2025-06-01 |
{"name":"SPFH","level":"100 mb","info":""}
|
|
1000 mb |
0h-384h | 2025-06-01 |
{"name":"SPFH","level":"1000 mb","info":""}
|
|
150 mb |
0h-384h | 2025-06-01 |
{"name":"SPFH","level":"150 mb","info":""}
|
|
200 mb |
0h-384h | 2025-06-01 |
{"name":"SPFH","level":"200 mb","info":""}
|
|
250 mb |
0h-384h | 2025-06-01 |
{"name":"SPFH","level":"250 mb","info":""}
|
|
300 mb |
0h-384h | 2025-06-01 |
{"name":"SPFH","level":"300 mb","info":""}
|
|
400 mb |
0h-384h | 2025-06-01 |
{"name":"SPFH","level":"400 mb","info":""}
|
|
50 mb |
0h-384h | 2025-06-01 |
{"name":"SPFH","level":"50 mb","info":""}
|
|
500 mb |
0h-384h | 2025-06-01 |
{"name":"SPFH","level":"500 mb","info":""}
|
|
600 mb |
0h-384h | 2025-06-01 |
{"name":"SPFH","level":"600 mb","info":""}
|
|
700 mb |
0h-384h | 2025-06-01 |
{"name":"SPFH","level":"700 mb","info":""}
|
|
850 mb |
0h-384h | 2025-06-01 |
{"name":"SPFH","level":"850 mb","info":""}
|
|
925 mb |
0h-384h | 2025-06-01 |
{"name":"SPFH","level":"925 mb","info":""}
|
Air temperature is the thermal state of the atmosphere at the specified level. It influences density, stability, and energy exchange.
| Level | Info | Horizon | Introduced | Selector |
|---|---|---|---|---|
100 mb |
0h-384h | 2025-06-01 |
{"name":"TMP","level":"100 mb","info":""}
|
|
1000 mb |
0h-384h | 2025-06-01 |
{"name":"TMP","level":"1000 mb","info":""}
|
|
150 mb |
0h-384h | 2025-06-01 |
{"name":"TMP","level":"150 mb","info":""}
|
|
200 mb |
0h-384h | 2025-06-01 |
{"name":"TMP","level":"200 mb","info":""}
|
|
250 mb |
0h-384h | 2025-06-01 |
{"name":"TMP","level":"250 mb","info":""}
|
|
300 mb |
0h-384h | 2025-06-01 |
{"name":"TMP","level":"300 mb","info":""}
|
|
400 mb |
0h-384h | 2025-06-01 |
{"name":"TMP","level":"400 mb","info":""}
|
|
50 mb |
0h-384h | 2025-06-01 |
{"name":"TMP","level":"50 mb","info":""}
|
|
500 mb |
0h-384h | 2025-06-01 |
{"name":"TMP","level":"500 mb","info":""}
|
|
600 mb |
0h-384h | 2025-06-01 |
{"name":"TMP","level":"600 mb","info":""}
|
|
700 mb |
0h-384h | 2025-06-01 |
{"name":"TMP","level":"700 mb","info":""}
|
|
850 mb |
0h-384h | 2025-06-01 |
{"name":"TMP","level":"850 mb","info":""}
|
|
925 mb |
0h-384h | 2025-06-01 |
{"name":"TMP","level":"925 mb","info":""}
|
U‑component of wind is the east‑west component of the horizontal wind. Combine with v for speed and direction.
| Level | Info | Horizon | Introduced | Selector |
|---|---|---|---|---|
100 mb |
0h-384h | 2025-06-01 |
{"name":"UGRD","level":"100 mb","info":""}
|
|
1000 mb |
0h-384h | 2025-06-01 |
{"name":"UGRD","level":"1000 mb","info":""}
|
|
150 mb |
0h-384h | 2025-06-01 |
{"name":"UGRD","level":"150 mb","info":""}
|
|
200 mb |
0h-384h | 2025-06-01 |
{"name":"UGRD","level":"200 mb","info":""}
|
|
250 mb |
0h-384h | 2025-06-01 |
{"name":"UGRD","level":"250 mb","info":""}
|
|
300 mb |
0h-384h | 2025-06-01 |
{"name":"UGRD","level":"300 mb","info":""}
|
|
400 mb |
0h-384h | 2025-06-01 |
{"name":"UGRD","level":"400 mb","info":""}
|
|
50 mb |
0h-384h | 2025-06-01 |
{"name":"UGRD","level":"50 mb","info":""}
|
|
500 mb |
0h-384h | 2025-06-01 |
{"name":"UGRD","level":"500 mb","info":""}
|
|
600 mb |
0h-384h | 2025-06-01 |
{"name":"UGRD","level":"600 mb","info":""}
|
|
700 mb |
0h-384h | 2025-06-01 |
{"name":"UGRD","level":"700 mb","info":""}
|
|
850 mb |
0h-384h | 2025-06-01 |
{"name":"UGRD","level":"850 mb","info":""}
|
|
925 mb |
0h-384h | 2025-06-01 |
{"name":"UGRD","level":"925 mb","info":""}
|
V‑component of wind is the north‑south component of the horizontal wind. Combine with u for speed and direction.
| Level | Info | Horizon | Introduced | Selector |
|---|---|---|---|---|
100 mb |
0h-384h | 2025-06-01 |
{"name":"VGRD","level":"100 mb","info":""}
|
|
1000 mb |
0h-384h | 2025-06-01 |
{"name":"VGRD","level":"1000 mb","info":""}
|
|
150 mb |
0h-384h | 2025-06-01 |
{"name":"VGRD","level":"150 mb","info":""}
|
|
200 mb |
0h-384h | 2025-06-01 |
{"name":"VGRD","level":"200 mb","info":""}
|
|
250 mb |
0h-384h | 2025-06-01 |
{"name":"VGRD","level":"250 mb","info":""}
|
|
300 mb |
0h-384h | 2025-06-01 |
{"name":"VGRD","level":"300 mb","info":""}
|
|
400 mb |
0h-384h | 2025-06-01 |
{"name":"VGRD","level":"400 mb","info":""}
|
|
50 mb |
0h-384h | 2025-06-01 |
{"name":"VGRD","level":"50 mb","info":""}
|
|
500 mb |
0h-384h | 2025-06-01 |
{"name":"VGRD","level":"500 mb","info":""}
|
|
600 mb |
0h-384h | 2025-06-01 |
{"name":"VGRD","level":"600 mb","info":""}
|
|
700 mb |
0h-384h | 2025-06-01 |
{"name":"VGRD","level":"700 mb","info":""}
|
|
850 mb |
0h-384h | 2025-06-01 |
{"name":"VGRD","level":"850 mb","info":""}
|
|
925 mb |
0h-384h | 2025-06-01 |
{"name":"VGRD","level":"925 mb","info":""}
|
Vertical velocity in pressure coordinates (omega). Negative values indicate upward motion (rising air); positive values indicate subsidence.
| Level | Info | Horizon | Introduced | Selector |
|---|---|---|---|---|
100 mb |
0h-384h | 2025-06-01 |
{"name":"VVEL","level":"100 mb","info":""}
|
|
1000 mb |
0h-384h | 2025-06-01 |
{"name":"VVEL","level":"1000 mb","info":""}
|
|
150 mb |
0h-384h | 2025-06-01 |
{"name":"VVEL","level":"150 mb","info":""}
|
|
200 mb |
0h-384h | 2025-06-01 |
{"name":"VVEL","level":"200 mb","info":""}
|
|
250 mb |
0h-384h | 2025-06-01 |
{"name":"VVEL","level":"250 mb","info":""}
|
|
300 mb |
0h-384h | 2025-06-01 |
{"name":"VVEL","level":"300 mb","info":""}
|
|
400 mb |
0h-384h | 2025-06-01 |
{"name":"VVEL","level":"400 mb","info":""}
|
|
50 mb |
0h-384h | 2025-06-01 |
{"name":"VVEL","level":"50 mb","info":""}
|
|
500 mb |
0h-384h | 2025-06-01 |
{"name":"VVEL","level":"500 mb","info":""}
|
|
600 mb |
0h-384h | 2025-06-01 |
{"name":"VVEL","level":"600 mb","info":""}
|
|
700 mb |
0h-384h | 2025-06-01 |
{"name":"VVEL","level":"700 mb","info":""}
|
|
850 mb |
0h-384h | 2025-06-01 |
{"name":"VVEL","level":"850 mb","info":""}
|
|
925 mb |
0h-384h | 2025-06-01 |
{"name":"VVEL","level":"925 mb","info":""}
|
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