GribStream

NOAA National Blend of Models Parallel - Oceanic

GribStreamコード: nbmparoc

他のNBM Parallel格子: nbmpar, nbmparak, nbmparhi, nbmparpr, nbmpargu

ステータス: GribStreamではNBM v5がnbmocで運用版になっています。nbmocでは、2026-05-05 12:00 UTCより前のモデル実行は以前の運用NBM版を含み、2026-05-05 12:00 UTC以降のモデル実行はNBM v5を使います。NBM v5を本番運用に組み込む場合はnbmocを使ってください。nbmpar*データセットは、NOAAが将来並行比較ラインで実験的な検証版を再公開する場合の比較用として残します。

公開元のS3バケットはnoaa-nbm-para-pdsです。GribStreamは並行比較ラインを専用データセットコードで分け、運用NBMファミリーのアーカイブと混ぜずに比較できるようにしています。

技術リファレンス: PNS 25-45、Winter v5.0 configuration notes、NBM Versionsを参照してください。

概要

NBM Parallel Oceanicは、Oceanic格子向けNational Blend of Modelsの公開比較用出力です。NOAAが運用版の横で実験的ラインを公開する場合、比較と検証に使います。

NBM v5を本番利用する場合、推奨データセットはnbmocです。nbmparocはバージョン変更の比較や、NOAAが将来公開する並行比較ラインの実験的な検証版のための場所として残します。

NBM v5は単なるパラメータ変更ではありません。NOAAは多くの1時間ごとの予報ガイダンスを36 hから48 hへ伸ばし、Quantile Mapping、決定論的な風・突風の変更、より高解像度のECMWF/Canadian入力を含むブレンドを見直しました。

Oceanic領域では、NBM v5の資料が、Quantile Mappingを使う確率的な風・突風ガイダンス、気温、露点、雲量プロダクトの更新、より広い入力モデルのブレンドとQuantile Mappingに移行した有義波高補正を示しています。

GribStreamでは、nbmparocのセレクタは安定しています。name、level、info値はカタログから正確にコピーし、翻訳しません。

詳細

Archive window: Last 5 days
公開ソース: https://registry.opendata.aws/noaa-nbm-parallel/
主な特徴:
- NOAAが並行比較データを公開している場合に、運用版のNBMと比較できます。
- ソースの保持期間は短く、本番利用や長期履歴アーカイブではなく検証向けです。
- 運用NBMファミリーと同じGribStreamエンドポイントを使いますが、データセットコードは独立しています。
- nbmparocカタログの変数コード、level、info値を保持します。
解像度: Oceanic格子では約10 km。
更新頻度と時間範囲: 1時間ごとの予報サイクル。ソースが公開する場合、リードタイム（モデル実行からの予報時間）は1-264 hです。並行比較ラインは主に直近5日程度を保持します。
主な用途: 海上向け検証、風、突風、雲量、気温、露点、有義波高の比較、沿岸計画、NBM Oceanic運用版データセットだけを使う前の組み込み確認。

気象パラメータ

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。

APTMP –Apparent Temperature (K)

1 variant

Apparent temperature combines air temperature, humidity, and wind to estimate how hot or cold it feels to humans. It is useful for heat and cold stress assessments.

Units: K.

Level	Info	Horizon	Introduced	Selector
`2 m above ground`		2h-264h	5 days ago	`{"name":"APTMP","level":"2 m above ground","info":""}`

DPT –Dew Point Temperature (K)

1 variant

Dew point temperature is the temperature at which the air becomes saturated. It is a direct measure of moisture content.

Units: K.
When dew point is close to air temperature, fog or low cloud potential increases.

Level	Info	Horizon	Introduced	Selector
`2 m above ground`	`50% level`	2h-264h	5 days ago	`{"name":"DPT","level":"2 m above ground","info":"50% level"}`

FRZSPR –Freezing Spray Indicator (boolean)

1 variant

Freezing spray indicator flags marine conditions favorable for ice accretion on vessels. It depends on wind, air temperature, and wave conditions.

Units: boolean.

Level	Info	Horizon	Introduced	Selector
`surface`		2h-264h	5 days ago	`{"name":"FRZSPR","level":"surface","info":""}`

GUST –Wind Speed (Gust) (m/s)

1 variant

Wind gust is the peak short-duration wind speed. It captures brief, hazardous bursts that can exceed sustained winds.

Units: m/s.

Level	Info	Horizon	Introduced	Selector
`10 m above ground`	`50% level`	2h-264h	5 days ago	`{"name":"GUST","level":"10 m above ground","info":"50% level"}`

PWAT –Precipitable Water (kg/m^2)

9 variants

Precipitable water is the total column water vapor from the surface to the top of the atmosphere. It is a key moisture indicator.

Units: kg/m^2.

Level	Info	Horizon	Introduced	Selector
`entire atmosphere (considered as a single layer)`		1h-264h	5 days ago	`{"name":"PWAT","level":"entire atmosphere (considered as a single layer)","info":""}`
`entire atmosphere (considered as a single layer)`	`10% level`	1h-264h	5 days ago	`{"name":"PWAT","level":"entire atmosphere (considered as a single layer)","info":"10% level"}`
`entire atmosphere (considered as a single layer)`	`50% level`	1h-264h	5 days ago	`{"name":"PWAT","level":"entire atmosphere (considered as a single layer)","info":"50% level"}`
`entire atmosphere (considered as a single layer)`	`90% level`	1h-264h	5 days ago	`{"name":"PWAT","level":"entire atmosphere (considered as a single layer)","info":"90% level"}`
`entire atmosphere (considered as a single layer)`	`prob >12.7`	1h-264h	5 days ago	`{"name":"PWAT","level":"entire atmosphere (considered as a single layer)","info":"prob >12.7"}`
`entire atmosphere (considered as a single layer)`	`prob >25.4`	1h-264h	5 days ago	`{"name":"PWAT","level":"entire atmosphere (considered as a single layer)","info":"prob >25.4"}`
`entire atmosphere (considered as a single layer)`	`prob >38.1`	1h-264h	5 days ago	`{"name":"PWAT","level":"entire atmosphere (considered as a single layer)","info":"prob >38.1"}`
`entire atmosphere (considered as a single layer)`	`prob >50.8`	1h-264h	5 days ago	`{"name":"PWAT","level":"entire atmosphere (considered as a single layer)","info":"prob >50.8"}`
`entire atmosphere (considered as a single layer)`	`prob >63.5`	1h-264h	5 days ago	`{"name":"PWAT","level":"entire atmosphere (considered as a single layer)","info":"prob >63.5"}`

TCDC –Total Cloud Cover (percent)

2 variants

Total cloud cover is the fraction of the grid cell covered by clouds at any level. It influences radiation, temperature, and visibility.

Units: percent.
Cloud fraction influences surface radiation and temperature.

Level	Info	Horizon	Introduced	Selector
`surface`		2h-264h	5 days ago	`{"name":"TCDC","level":"surface","info":""}`
`surface`	`ens std dev`	2h-264h	5 days ago	`{"name":"TCDC","level":"surface","info":"ens std dev"}`

THUNC –Thunderstorm Probability (percent)

1 variant

Thunderstorm probability gives the chance of thunderstorms during the valid period. It is used for convective hazard guidance.

Units: percent.

Level	Info	Horizon	Introduced	Selector
`entire atmosphere`		1h-36h	5 days ago	`{"name":"THUNC","level":"entire atmosphere","info":""}`

TMP –Temperature (K)

2 variants

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

Units: K.

Level	Info	Horizon	Introduced	Selector
`2 m above ground`	`50% level`	2h-264h	5 days ago	`{"name":"TMP","level":"2 m above ground","info":"50% level"}`
`surface`		2h-264h	5 days ago	`{"name":"TMP","level":"surface","info":""}`

TPWDIR –Total Precipitable Water Transport Direction (degrees)

1 variant

Total precipitable water transport direction is the direction of column‑integrated moisture flux. It indicates moisture transport pathways.

Units: degrees.

Level	Info	Horizon	Introduced	Selector
`10 m above ground`		2h-167h	5 days ago	`{"name":"TPWDIR","level":"10 m above ground","info":""}`

TPWSPD –Total Precipitable Water Transport Speed (m/s)

1 variant

Total precipitable water transport speed is the magnitude of column‑integrated moisture transport. It highlights atmospheric river strength.

Units: m/s.

Level	Info	Horizon	Introduced	Selector
`10 m above ground`		2h-167h	5 days ago	`{"name":"TPWSPD","level":"10 m above ground","info":""}`

TSTM –Thunderstorm Indicator (boolean)

1 variant

Thunderstorm indicator flags the presence of thunderstorm conditions in the grid cell. It is used as a categorical hazard field.

Units: boolean.

Level	Info	Horizon	Introduced	Selector
`surface`	`probability forecast`	1h-192h	5 days ago	`{"name":"TSTM","level":"surface","info":"probability forecast"}`

VIS –Visibility (m)

1 variant

Horizontal visibility at the surface. Lower values indicate reduced visibility due to fog, precipitation, or aerosols.

Units: m.

Level	Info	Horizon	Introduced	Selector
`surface`	`50% level`	2h-264h	5 days ago	`{"name":"VIS","level":"surface","info":"50% level"}`

WDIR –Wind Direction (degrees)

6 variants

Wind direction indicates the direction from which the wind is blowing at the specified level.

Units: degrees.

Level	Info	Horizon	Introduced	Selector
`10 m above ground`		5h-264h	5 days ago	`{"name":"WDIR","level":"10 m above ground","info":""}`
`10 m above ground`	`50% level`	5h-264h	5 days ago	`{"name":"WDIR","level":"10 m above ground","info":"50% level"}`
`10 m above ground`	`75% level`	5h-264h	5 days ago	`{"name":"WDIR","level":"10 m above ground","info":"75% level"}`
`10 m above ground`	`90% level`	5h-264h	5 days ago	`{"name":"WDIR","level":"10 m above ground","info":"90% level"}`
`30 m above ground`	`50% level`	5h-264h	5 days ago	`{"name":"WDIR","level":"30 m above ground","info":"50% level"}`
`80 m above ground`	`50% level`	5h-264h	5 days ago	`{"name":"WDIR","level":"80 m above ground","info":"50% level"}`

WIND –Wind Speed (m/s)

8 variants

Wind speed is the magnitude of the horizontal wind at the specified level. It is used for transport, mixing, and hazards.

Units: m/s.

Level	Info	Horizon	Introduced	Selector
`10 m above ground`		5h-264h	5 days ago	`{"name":"WIND","level":"10 m above ground","info":""}`
`10 m above ground`	`10% level`	2h-264h	5 days ago	`{"name":"WIND","level":"10 m above ground","info":"10% level"}`
`10 m above ground`	`25% level`	2h-264h	5 days ago	`{"name":"WIND","level":"10 m above ground","info":"25% level"}`
`10 m above ground`	`50% level`	2h-264h	5 days ago	`{"name":"WIND","level":"10 m above ground","info":"50% level"}`
`10 m above ground`	`75% level`	2h-264h	5 days ago	`{"name":"WIND","level":"10 m above ground","info":"75% level"}`
`10 m above ground`	`90% level`	2h-264h	5 days ago	`{"name":"WIND","level":"10 m above ground","info":"90% level"}`
`30 m above ground`	`50% level`	2h-264h	5 days ago	`{"name":"WIND","level":"30 m above ground","info":"50% level"}`
`80 m above ground`	`50% level`	2h-264h	5 days ago	`{"name":"WIND","level":"80 m above ground","info":"50% level"}`

検索に一致するパラメータはありません。

NOAA National Blend of Models Parallel - Oceanic

概要

詳細

関連データセット

気象パラメータ