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Emulación basada en datos de la microfísica de aerosoles modal mediante modelado basado en operadores neuronales

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Área de la Ciencia:

  • Ciencia del Sistema Terrestre
  • Ciencia Atmosférica
  • Ciencia Computacional

Sus antecedentes:

  • Los procesos de microfísica de aerosoles son complejos y operan a escalas pequeñas, lo que plantea desafíos para simulaciones precisas del sistema terrestre.
  • Los modelos existentes luchan con las demandas computacionales de la simulación de estos procesos a escalas regionales y globales.

Objetivo del estudio:

  • Desarrollar y evaluar un modelo sustituto, la red de operadores profundos de aerosoles (ADON), para emular la parametrización de la microfísica de aerosoles.
  • Mejorar la precisión y eficiencia de los modelos del sistema terrestre como el Energy Earth System Model versión 2 (E3SMv2).

Principales métodos:

  • Se construyó una arquitectura de doble red inspirada en la física para el modelo sustituto ADON.
  • Se entrenó el modelo con un gran conjunto de datos (9,8 millones de muestras) de simulaciones E3SMv2 en condiciones sin nubes.
  • Se incorporaron características espaciales, temporales y de componentes principales en la arquitectura de doble red.

Principales resultados:

  • El modelo ADON logró una alta precisión, con puntuaciones R-cuadrado superiores a [Fórmula: ver texto] para modos de aerosoles lognormales.
  • El modelo capturó eficazmente las representaciones de aerosoles y sus relaciones con las variables atmosféricas.
  • El análisis reveló la importancia de las características, destacando las variables de entrada clave que impactan la capacidad predictiva.

Conclusiones:

  • El modelo ADON validado demuestra una eficiencia significativa para la inferencia en línea en CPU y GPU.
  • ADON muestra un fuerte potencial para la modelización predictiva robusta en cálculos del sistema terrestre a gran escala.
  • Este modelo sustituto ofrece un camino hacia simulaciones climáticas más precisas y eficientes.