リファレンス
予報用語
台風セレクター、モデルパネル、地図ポップアップで使う略語です。
海域コード
- AL
大西洋
カリブ海とメキシコ湾を含む北大西洋の海域です。
- EP
東太平洋
西経140度より東の北東太平洋の海域です。
- CP
中部太平洋
西経140度から日付変更線までの北中部太平洋の海域です。
- WP
西太平洋
JTWC/JMA が監視する主な台風発生海域です。
- IO
北インド洋
ベンガル湾とアラビア海を含む北インド洋の海域です。
- SH
南半球
JTWC ATCF データで使われる南半球の熱帯低気圧海域です。
強度階級
| コード | 意味 | 最小風速 |
|---|---|---|
TD | 熱帯低気圧 | 0 kt |
TS | 熱帯暴風雨 | 34 kt |
C1 | カテゴリー1 | 64 kt |
C2 | カテゴリー2 | 83 kt |
C3 | カテゴリー3 | 96 kt |
C4 | カテゴリー4 | 113 kt |
C5 | カテゴリー5 | 137 kt |
機関
- NHC
米国ハリケーンセンター
大西洋と東部/中部太平洋の熱帯低気圧情報を担当する NOAA の機関です。
- JTWC
合同台風警報センター
西太平洋、インド洋、南半球の熱帯低気圧警報を提供する米国の機関です。
単位
- kt
ノット
1時間あたり1海里に相当する風速単位です。約1.852 km/h です。
- km/h
キロメートル毎時
地図ポップアップでノットと併用するメートル法の風速単位です。
- mph
マイル毎時
一部の公開予報や設定で使われるヤード・ポンド法の風速単位です。
- MSLP
中心気圧
推定される嵐中心の海面気圧で、通常 hPa または mb で表します。
モデル略称
Model identifiers are ATCF shorthand. Each link points to the operating agency's official documentation for that model family.
公式
The human-issued forecast from the warning agency. In Atlantic and east Pacific storms that means NHC; in western Pacific and other JTWC basins it follows JTWC guidance.
Official agency forecast
AI
NOAA's deterministic AI global forecast stream, designed as a fast machine-learning counterpart to traditional global model guidance.
NOAA deterministic AI global model
The mean track from NOAA's AI global ensemble family. It is a probabilistic centerline rather than a single deterministic model run.
Mean of NOAA's 31-member AI ensemble
A hybrid ensemble mean that blends AI-driven guidance with physics-based ensemble output, useful when the spread is large.
62-member hybrid AI + physics ensemble mean
全球モデル
ATCF's GFS identifier. GFS is NOAA/NCEP's primary global numerical prediction system and one of the baseline models for tropical guidance.
ECMWF's Integrated Forecasting System. It is often referred to as the European model and is a core global forecast reference.
Availability varies by basin
The Met Office Unified Model, a global numerical model family used for weather and climate prediction across several time scales.
Canada's Global Deterministic Prediction System, also commonly surfaced as CMC or GDPS in model guidance displays.
The U.S. Navy global model produced through FNMOC, descended from NOGAPS and used as a global medium-range guidance source.
台風モデル
One HAFS configuration. HAFS is NOAA's next-generation hurricane model with ocean coupling and storm-scale data assimilation.
A second HAFS configuration, usually read alongside HAFS-A to compare model physics and initialization differences.
NOAA's legacy high-resolution hurricane model, built around nested storm-following grids for track, intensity, and structure guidance.
A NOAA hurricane model stream listed with NCEP hurricane products. It is often viewed alongside HWRF and HAFS guidance.
合成
A consensus aid. Consensus tracks combine selected objective guidance, giving forecasters a stable center of gravity across models.
アンサンブル平均
The GEFS ensemble mean. It summarizes the NOAA global ensemble member spread into a single average track.
The Canadian ensemble mean, derived from ECCC's Global Ensemble Prediction System.
The FNMOC ensemble mean, used here as the Navy ensemble centerline when available in ATCF guidance.
アンサンブルメンバー
Individual AI ensemble members. The members show spread and alternate solutions, while the mean compresses them into a single guide.
Individual AI ensemble member tracks
Individual GEFS member tracks. They show the spread of solutions that the ensemble mean averages together.
Individual Canadian ensemble members from the ECCC ensemble system, shown as lower-emphasis spread tracks.
Individual FNMOC ensemble members, shown as a spread family for alternate global solutions.