GribStream

ECMWF IFS Wave ENS 0.1° 波浪アンサンブル

GribStreamコード: ifswaef0p1

ECMWF IFS Wave ENS 0.1° 波浪アンサンブル: 有義波高のばらつき（m）。GribStreamが摂動メンバー50個すべての母標準偏差を計算し、各格子点で50個の有効値を必要とします。
ifswaef0p1 · 有義波高のばらつき（m）。GribStreamが摂動メンバー50個すべての母標準偏差を計算し、各格子点で50個の有効値を必要とします。 保存済み予報の例：2026年10月20日12 UTC初期値、10月30日12 UTC有効（+240時間）。0.1°出力格子の最近傍セルで描画。データ：ECMWF、CC BY 4.0。可視化：GribStream。

この予報について

ECMWFの0.1°波浪アンサンブル50メンバー。最大15日先までの波高、周期、波向の不確実性を評価できます。

ECMWF IFSとは

IFSはIntegrated Forecasting System（統合予報システム）の略です。欧州中期予報センター（ECMWF）がMétéo-Franceと協力して開発し、データ同化によって観測を取り込み、物理方程式で地球システムの時間変化を計算します。大気・陸面・海洋・波浪の各要素が情報を交換します。これらは最大15日先までの短期・中期予報製品です。ECMWFは機械学習を用いる別系統のAIFSも開発しています。 ECMWF公式資料.

この製品の用途

波浪アンサンブルはIFSの複数の気象シナリオを結合ecWAMモデルに反映し、嵐の発達の不確実性が海況に与える影響を示します。メンバー1～50を収録し、波浪コントロールは別製品です。各予報の時間変化を比較すると、作業に適した条件の開始時刻や持続時間を評価できます。 ECMWF公式資料.

詳細

00・12 UTC：+0～144時間は3時間間隔、+150～360時間は6時間間隔（15日先まで）。06・18 UTC：+0～144時間は3時間間隔（6日先まで）。サイクルは初期時刻を示し、配信はその後です。
00・12 UTC：+0～144時間は3時間間隔、+150～360時間は6時間間隔（15日先まで）。06・18 UTC：+0～144時間は3時間間隔（6日先まで）。サイクルは初期時刻を示し、配信はその後です。

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。

cdww –Coefficient of drag with waves (dimensionless)
1 variant

Parameter ID 140233

ECMWF param DB

Wave-model drag coefficient describing the surface stress coupling between winds and waves.

  • Published with ECMWF wave-model output and useful for diagnosing air-sea momentum exchange.
Level Info Horizon Selector
sfc 0h-360h
{"name":"cdww","level":"sfc","info":""}
h1012 –Significant wave height of all waves with periods from 10 to 12 seconds (m)
1 variant

Parameter ID 140114

ECMWF param DB

Significant wave height contributed by waves with periods from 10 to 12 seconds.

  • Period-band wave height fields help separate sea states by wave-period class.
Level Info Horizon Selector
sfc 0h-360h
{"name":"h1012","level":"sfc","info":""}
h1214 –Significant wave height of all waves with periods from 12 to 14 seconds (m)
1 variant

Parameter ID 140115

ECMWF param DB

Significant wave height contributed by waves with periods from 12 to 14 seconds.

  • Period-band wave height fields help separate sea states by wave-period class.
Level Info Horizon Selector
sfc 0h-360h
{"name":"h1214","level":"sfc","info":""}
h1417 –Significant wave height of all waves with periods from 14 to 17 seconds (m)
1 variant

Parameter ID 140116

ECMWF param DB

Significant wave height contributed by waves with periods from 14 to 17 seconds.

  • Period-band wave height fields help separate sea states by wave-period class.
Level Info Horizon Selector
sfc 0h-360h
{"name":"h1417","level":"sfc","info":""}
h1721 –Significant wave height of all waves with periods from 17 to 21 seconds (m)
1 variant

Parameter ID 140117

ECMWF param DB

Significant wave height contributed by waves with periods from 17 to 21 seconds.

  • Period-band wave height fields help separate sea states by wave-period class.
Level Info Horizon Selector
sfc 0h-360h
{"name":"h1721","level":"sfc","info":""}
h2125 –Significant wave height of all waves with periods from 21 to 25 seconds (m)
1 variant

Parameter ID 140118

ECMWF param DB

Significant wave height contributed by waves with periods from 21 to 25 seconds.

  • Period-band wave height fields help separate sea states by wave-period class.
Level Info Horizon Selector
sfc 0h-360h
{"name":"h2125","level":"sfc","info":""}
h2530 –Significant wave height of all waves with periods from 25 to 30 seconds (m)
1 variant

Parameter ID 140119

ECMWF param DB

Significant wave height contributed by waves with periods from 25 to 30 seconds.

  • Period-band wave height fields help separate sea states by wave-period class.
Level Info Horizon Selector
sfc 0h-360h
{"name":"h2530","level":"sfc","info":""}
mp2 –Mean zero-crossing wave period (s)
1 variant

Parameter ID 140221

ECMWF param DB

Mean time between sea-surface crossings of mean sea level.

  • Derived from the two-dimensional wave spectrum that combines waves of different heights, lengths, and directions.
  • Useful with wave height to estimate time under water for coastal structures.
Level Info Horizon Selector
sfc 0h-360h
{"name":"mp2","level":"sfc","info":""}
mwd –Mean wave direction (Degree true)
1 variant

Parameter ID 140230

ECMWF param DB

Mean direction of ocean surface waves averaged over the wave spectrum.

  • Accounts for both wind-sea and swell components.
  • Direction is in degrees true (0 = from north, 90 = from east).
Level Info Horizon Selector
sfc 0h-360h
{"name":"mwd","level":"sfc","info":""}
mwp –Mean wave period (s)
1 variant

Parameter ID 140232

ECMWF param DB

Average time between successive wave crests based on the wave spectrum.

  • Accounts for both wind-sea and swell components.
  • Useful for sea state assessments and marine engineering.
Level Info Horizon Selector
sfc 0h-360h
{"name":"mwp","level":"sfc","info":""}
pp1d –Peak wave period (s)
1 variant

Parameter ID 140231

ECMWF param DB

Period of the most energetic ocean waves associated with the spectral peak.

  • Computed from the reciprocal of the frequency at the peak of the wave spectrum.
  • Includes contributions from both wind-sea and swell.
Level Info Horizon Selector
sfc 0h-360h
{"name":"pp1d","level":"sfc","info":""}
swh –Significant height of combined wind waves and swell (m)
1 variant

Parameter ID 140229

ECMWF param DB

Average height of the highest one-third of wind + swell waves.

  • Defined as four times the square root of the spectral variance (integral over all frequencies and directions).
  • Used to assess sea state and structural loading offshore.
Level Info Horizon Selector
sfc 0h-360h
{"name":"swh","level":"sfc","info":""}
wmb –Model bathymetry (m)
1 variant

Parameter ID 140219

ECMWF param DB

Bathymetry used by the ECMWF wave model.

  • This is a model-grid field used by the wave model, not an observed water-depth analysis.
Level Info Horizon Selector
sfc 0h-360h
{"name":"wmb","level":"sfc","info":""}

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