GribStream

NOAA National Blend of Models Parallel - Oceanic

GribStreamコード: nbmparoc

NBM 2 meter temperature across its complete oceanic product grid with black boundaries
NBM 2 m temperature across the complete populated footprint at the 10 km spacing used by the oceanic product family, with black boundaries. This coverage reference was generated from nbm for the nbmparoc page; available variables may differ.

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

関連データセット

気象パラメータ

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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
NOAA GRIB2 Table 4.2-0-0

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
NOAA GRIB2 Table 4.2-0-0

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
NOAA GRIB2

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
NOAA GRIB2 Table 4.2-0-2

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
NOAA GRIB2 Table 4.2-0-1

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
NOAA GRIB2 Table 4.2-0-6

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
NOAA GRIB2 Table 4.2-0-7

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
NOAA GRIB2 Table 4.2-0-0

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
NOAA GRIB2 Table 4.2-0-1

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
NOAA GRIB2 Table 4.2-0-1

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
NOAA GRIB2

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
NOAA GRIB2 Table 4.2-0-7

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
NOAA GRIB2 Table 4.2-0-2

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
NOAA GRIB2 Table 4.2-0-2

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"}

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