GribStream

FourCastNet v2-small IFS再予報API

GribStreamコード: aiwpfourcastnetifs

AIWP Pangu-Weatherのソース単位による2 m気温と海面更正気圧の等値線を全球格子に表示した図
2026年7月17日12 UTC初期値、予報時間120 hのAIWP Pangu-Weather t2（K）とmsl等値線（Pa）を、0.25度ネイティブ全球格子の1,038,240セルすべてについて単位変換せずに表示しています。 画像はaiwppanguから作成した共通格子の例です。利用できる変数はデータセットごとに異なります。

公式ソース： CIRAとNOAA GSLのAI Weather Predictionアーカイブは、再現可能な共同評価のため、FourCastNet v2-smallをECMWF IFS解析値から実行しています。

現在のGribStream収録範囲： aiwpfourcastnetifsは2022年1月1日00 UTCの予報サイクルから始まり、新しいサイクルとともに増えます。この日時をGribStreamでの収録開始点とします。

研究用の実験的配信： レジストリは欠測の可能性と可用性が保証されないことを明記しています。公開READMEではデータが現状有姿で提供されることに加え、配信時刻やディレクトリ構成が過去に変更されたことも説明されています。この評価用データセットはNOAAまたはECMWFの公式運用予報ではありません。停止の影響が大きいシステムの唯一の依存先にはせず、forecasted_at（モデル実行時刻）の鮮度を監視し、代替となる運用データセットを確保してください。

バージョンの連続性： 各GribStreamコードは現在のソースモデルバージョンに固定されます。実質的に異なる新バージョンは、この履歴に密かに結合せず、別のデータセットコードとして提供します。

概要

FourCastNet v2-smallはデータ駆動型の全球モデルです。AIWPはこの版をIFSで、すなわちECMWF IFS解析値を初期値として実行し、モデルの学習または微調整期間と重ならないよう2022年1月以降を選んでいます。

FourCastNet v2-smallの論文が設計を説明しています。FourCastNet v2-smallは球面Fourier neural operatorを用い、球面上の全球スペクトル演算によって安定した自己回帰型の気象予測を目指します。 公表結果は特定の実験を示すもので、現在のアーカイブの性能を保証するものではありません。

FourCastNet v2-smallのインベントリは2 m気温、10 m・100 m風、地上気圧、平均海面気圧、可降水量、および13気圧面の5変数。 大規模循環、熱構造、水蒸気輸送、気象システムの発達を調べるための場を提供します。

aiwpfourcastnetはもう一方の初期条件システムを使います。両者の比較は初期状態への感度を調べる助けになりますが、モデル品質だけを分離する比較ではありません。GFSとIFSは異なる解析システムです。このページはIFS版です。

この決定論的プロダクトは予報の不確実性を定量化せず、降水・鉛直速度・雲・放射・地表フラックスを含みません。 運用上の判断では、現在の公式予報と比較してください。チームはAIWPアーカイブ論文の引用を求めています。

詳細

関連データセット

気象パラメータ

パラメータ検索
0 パラメータ

パラメータをクリックすると、コピーしやすいJSONセレクタ付きのコンパクトな表で候補を確認できます。コード、level、selector値はAPIが公開する値をそのまま保持します。

msl –Pressure reduced to MSL (Pa)
1 variant

Pressure reduced to MSL (Pa).

Level Info Horizon Introduced Selector
0h-240h 2022-01-01
{"name":"msl","level":"","info":""}
r –Relative humidity (%)
13 variants

Relative humidity (%).

Level Info Horizon Introduced Selector
100 hPa 0h-240h 2022-01-01
{"name":"r","level":"100 hPa","info":""}
1000 hPa 0h-240h 2022-01-01
{"name":"r","level":"1000 hPa","info":""}
150 hPa 0h-240h 2022-01-01
{"name":"r","level":"150 hPa","info":""}
200 hPa 0h-240h 2022-01-01
{"name":"r","level":"200 hPa","info":""}
250 hPa 0h-240h 2022-01-01
{"name":"r","level":"250 hPa","info":""}
300 hPa 0h-240h 2022-01-01
{"name":"r","level":"300 hPa","info":""}
400 hPa 0h-240h 2022-01-01
{"name":"r","level":"400 hPa","info":""}
50 hPa 0h-240h 2022-01-01
{"name":"r","level":"50 hPa","info":""}
500 hPa 0h-240h 2022-01-01
{"name":"r","level":"500 hPa","info":""}
600 hPa 0h-240h 2022-01-01
{"name":"r","level":"600 hPa","info":""}
700 hPa 0h-240h 2022-01-01
{"name":"r","level":"700 hPa","info":""}
850 hPa 0h-240h 2022-01-01
{"name":"r","level":"850 hPa","info":""}
925 hPa 0h-240h 2022-01-01
{"name":"r","level":"925 hPa","info":""}
sp –Surface pressure (Pa)
1 variant

Surface pressure (Pa).

Level Info Horizon Introduced Selector
0h-240h 2022-01-01
{"name":"sp","level":"","info":""}
t –Temperature (K)
13 variants

Temperature (K).

Level Info Horizon Introduced Selector
100 hPa 0h-240h 2022-01-01
{"name":"t","level":"100 hPa","info":""}
1000 hPa 0h-240h 2022-01-01
{"name":"t","level":"1000 hPa","info":""}
150 hPa 0h-240h 2022-01-01
{"name":"t","level":"150 hPa","info":""}
200 hPa 0h-240h 2022-01-01
{"name":"t","level":"200 hPa","info":""}
250 hPa 0h-240h 2022-01-01
{"name":"t","level":"250 hPa","info":""}
300 hPa 0h-240h 2022-01-01
{"name":"t","level":"300 hPa","info":""}
400 hPa 0h-240h 2022-01-01
{"name":"t","level":"400 hPa","info":""}
50 hPa 0h-240h 2022-01-01
{"name":"t","level":"50 hPa","info":""}
500 hPa 0h-240h 2022-01-01
{"name":"t","level":"500 hPa","info":""}
600 hPa 0h-240h 2022-01-01
{"name":"t","level":"600 hPa","info":""}
700 hPa 0h-240h 2022-01-01
{"name":"t","level":"700 hPa","info":""}
850 hPa 0h-240h 2022-01-01
{"name":"t","level":"850 hPa","info":""}
925 hPa 0h-240h 2022-01-01
{"name":"t","level":"925 hPa","info":""}
t2 –2 metre temperature (K)
1 variant

2 metre temperature (K).

Level Info Horizon Introduced Selector
0h-240h 2022-01-01
{"name":"t2","level":"","info":""}
tcwv –Precipitable water (kg m-2)
1 variant

Precipitable water (kg m-2).

Level Info Horizon Introduced Selector
0h-240h 2022-01-01
{"name":"tcwv","level":"","info":""}
u –U component of wind (m s-1)
13 variants

U component of wind (m s-1).

Level Info Horizon Introduced Selector
100 hPa 0h-240h 2022-01-01
{"name":"u","level":"100 hPa","info":""}
1000 hPa 0h-240h 2022-01-01
{"name":"u","level":"1000 hPa","info":""}
150 hPa 0h-240h 2022-01-01
{"name":"u","level":"150 hPa","info":""}
200 hPa 0h-240h 2022-01-01
{"name":"u","level":"200 hPa","info":""}
250 hPa 0h-240h 2022-01-01
{"name":"u","level":"250 hPa","info":""}
300 hPa 0h-240h 2022-01-01
{"name":"u","level":"300 hPa","info":""}
400 hPa 0h-240h 2022-01-01
{"name":"u","level":"400 hPa","info":""}
50 hPa 0h-240h 2022-01-01
{"name":"u","level":"50 hPa","info":""}
500 hPa 0h-240h 2022-01-01
{"name":"u","level":"500 hPa","info":""}
600 hPa 0h-240h 2022-01-01
{"name":"u","level":"600 hPa","info":""}
700 hPa 0h-240h 2022-01-01
{"name":"u","level":"700 hPa","info":""}
850 hPa 0h-240h 2022-01-01
{"name":"u","level":"850 hPa","info":""}
925 hPa 0h-240h 2022-01-01
{"name":"u","level":"925 hPa","info":""}
u10 –10 metre U wind component (m s-1)
1 variant

10 metre U wind component (m s-1).

Level Info Horizon Introduced Selector
0h-240h 2022-01-01
{"name":"u10","level":"","info":""}
u100 –100 metre U wind component (m s-1)
1 variant

100 metre U wind component (m s-1).

Level Info Horizon Introduced Selector
0h-240h 2022-01-01
{"name":"u100","level":"","info":""}
v –V component of wind (m s-1)
13 variants

V component of wind (m s-1).

Level Info Horizon Introduced Selector
100 hPa 0h-240h 2022-01-01
{"name":"v","level":"100 hPa","info":""}
1000 hPa 0h-240h 2022-01-01
{"name":"v","level":"1000 hPa","info":""}
150 hPa 0h-240h 2022-01-01
{"name":"v","level":"150 hPa","info":""}
200 hPa 0h-240h 2022-01-01
{"name":"v","level":"200 hPa","info":""}
250 hPa 0h-240h 2022-01-01
{"name":"v","level":"250 hPa","info":""}
300 hPa 0h-240h 2022-01-01
{"name":"v","level":"300 hPa","info":""}
400 hPa 0h-240h 2022-01-01
{"name":"v","level":"400 hPa","info":""}
50 hPa 0h-240h 2022-01-01
{"name":"v","level":"50 hPa","info":""}
500 hPa 0h-240h 2022-01-01
{"name":"v","level":"500 hPa","info":""}
600 hPa 0h-240h 2022-01-01
{"name":"v","level":"600 hPa","info":""}
700 hPa 0h-240h 2022-01-01
{"name":"v","level":"700 hPa","info":""}
850 hPa 0h-240h 2022-01-01
{"name":"v","level":"850 hPa","info":""}
925 hPa 0h-240h 2022-01-01
{"name":"v","level":"925 hPa","info":""}
v10 –10 metre V wind component (m s-1)
1 variant

10 metre V wind component (m s-1).

Level Info Horizon Introduced Selector
0h-240h 2022-01-01
{"name":"v10","level":"","info":""}
v100 –100 metre V wind component (m s-1)
1 variant

100 metre V wind component (m s-1).

Level Info Horizon Introduced Selector
0h-240h 2022-01-01
{"name":"v100","level":"","info":""}
z –Geopotential (m2 s-2)
13 variants

Geopotential (m2 s-2).

Level Info Horizon Introduced Selector
100 hPa 0h-240h 2022-01-01
{"name":"z","level":"100 hPa","info":""}
1000 hPa 0h-240h 2022-01-01
{"name":"z","level":"1000 hPa","info":""}
150 hPa 0h-240h 2022-01-01
{"name":"z","level":"150 hPa","info":""}
200 hPa 0h-240h 2022-01-01
{"name":"z","level":"200 hPa","info":""}
250 hPa 0h-240h 2022-01-01
{"name":"z","level":"250 hPa","info":""}
300 hPa 0h-240h 2022-01-01
{"name":"z","level":"300 hPa","info":""}
400 hPa 0h-240h 2022-01-01
{"name":"z","level":"400 hPa","info":""}
50 hPa 0h-240h 2022-01-01
{"name":"z","level":"50 hPa","info":""}
500 hPa 0h-240h 2022-01-01
{"name":"z","level":"500 hPa","info":""}
600 hPa 0h-240h 2022-01-01
{"name":"z","level":"600 hPa","info":""}
700 hPa 0h-240h 2022-01-01
{"name":"z","level":"700 hPa","info":""}
850 hPa 0h-240h 2022-01-01
{"name":"z","level":"850 hPa","info":""}
925 hPa 0h-240h 2022-01-01
{"name":"z","level":"925 hPa","info":""}

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