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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.

Scientific data

|February 24, 2026

Resumen

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.

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.

Palabras clave:

emisiones de CO2 temperatura extrema datos diarios modelos de flujo de carbono ciencia ambiental ciencia climática ciencia de datos

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