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Emisiones diarias globales de CO2 de 1970 a 2024

Tao Li1, Lixing Wang1, Zihan Qiu2

  • 1Department of Earth System Science, Tsinghua University, Beijing, 100084, China.

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|February 24, 2026
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Los eventos de temperatura extrema requieren datos diarios de dióxido de carbono (CO2). Este estudio construye un conjunto de datos diario de CO2 a largo plazo de 1970 a 2024 utilizando actividad de alta frecuencia y aprendizaje automático, llenando una brecha crítica de datos.

Palabras clave:
emisiones de CO2temperatura extremadatos diariosmodelos de flujo de carbonociencia ambientalciencia climáticaciencia de datos

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Área de la Ciencia:

  • Ciencias Ambientales
  • Ciencias Climáticas
  • Ciencia de Datos

Sus antecedentes:

  • Los eventos de temperatura extrema aumentan en frecuencia a nivel mundial.
  • Los datos diarios de emisiones de dióxido de carbono (CO2) son cruciales para la evaluación de impactos, pero solo están disponibles a partir de 2019.
  • Existe una brecha de datos significativa para las emisiones diarias históricas de CO2.

Objetivo del estudio:

  • Crear un conjunto de datos completo y a largo plazo de emisiones diarias de CO2 que abarque de 1970 a 2024.
  • Permitir el análisis detallado de los impactos de eventos de temperatura extrema en las emisiones de CO2.
  • Mejorar la precisión de las estimaciones de flujo de carbono utilizando modelos de transporte químico.

Principales métodos:

  • Se compilaron más de dos millones de observaciones casi en tiempo real (electricidad, tráfico, gas, industria) de 2019 a 2024.
  • Se desarrolló un conjunto de datos diario de emisiones de CO2 para 2019-2024 utilizando datos de actividad de alta frecuencia.
  • Se aplicaron métodos de aprendizaje automático y grados día para desagregar las emisiones mensuales (1970-2018) a una base diaria.

Principales resultados:

  • Se generó un conjunto de datos global de emisiones diarias de CO2 para 14 países/regiones de 1970 a 2024.
  • El conjunto de datos cubre cuatro sectores clave: energía, industria, residencial y transporte (incluida la aviación).
  • El conjunto de datos combinado proporciona una resolución temporal sin precedentes para el análisis de emisiones.

Conclusiones:

  • El nuevo conjunto de datos a largo plazo de emisiones diarias de CO2 aborda una necesidad crítica para la investigación de impactos climáticos.
  • Este conjunto de datos mejorará la comprensión de los efectos de la temperatura extrema en las emisiones.
  • Los datos de emisiones mejorados refinarán los modelos de inversión de flujo de carbono y las evaluaciones del cambio climático.