5kmと毎時間解像度で41年グローバル全空表面長波放射成分データセット
PubMedで要約を見る
まとめ
この要約は機械生成です。新しいデータセットであるLessRadは,高解像度の長波放射 (LWR) データを41年にわたって提供しています. この改善されたデータセットは,正確な長期の地表放射線予算情報を提供することで,気候変動研究を強化します.
科学分野
- 地球システム科学
- 気候科学
- リモートセンシング
背景
- 長波放射 (LWR) の正確な測定は,地表エネルギーバランスと気候変動の研究に不可欠です.
- 既存のリモートセンシングベースのLWR製品は,時空的範囲,解像度,および精度に制限があります.
研究 の 目的
- 現在の製品の限界に対処するために,LWRのコンポーネントの高解像度,長期的なデータセットを開発する.
- 地球表面の放射線の動態を分析するための,シームレスで正確なリソースを提供すること.
主な方法
- グローバル・ロング・ターミナル・アース・システムの長波放射線構成要素の開発 空間時間的にシームレスな放射線予算データセット (LessRad)
- 高解像度 (0.05°,時間単位) のLWRコンポーネント (LWDR,LWUR,LWNR) の生成は,1982年から2022年まで.
- 565の地上観測サイトで検証
主要な成果
- 既存の製品を上回る 41年間の高解像度LWRデータを提供しています
- 検証では,LWDR (R=0. 94,Bias=4. 39 W/ m2,RMSE=24. 74 W/ m2) とLWUR (R=0. 97,Bias=-0. 14 W/ m2,RMSE=20. 42 W/ m2) に対して高い精度を示しています.
結論
- LessRad LWRのデータセットは,品質とカバー面に大きな改善をもたらします.
- 地球表面の放射線動態と 気候変動の研究の詳細な分析に 価値のある情報源として役立つ.
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