基于改进的TimeGAN,对小样本碳排放预测的研究:中国长江三角洲城市聚集地的案例研究
Huihui Lu1, Yiru Dai1, Ting Yin1
1CIMS Research Center of Tongji University, 200092, Shanghai, China.
Journal of environmental management
|March 26, 2025
概括
准确的城市碳排放预测对于气候战略至关重要. 这项研究引入了计算和增强碳数据的新方法,克服了长江三角洲的小样本挑战,以便更好地预测.
科学领域:
- 环境科学 环境科学
- 城市规划 城市规划
- 数据科学数据科学数据科学
背景情况:
- 城市碳排放预测对于减缓气候变化至关重要,但面临着数据稀缺和计算挑战,特别是在长江三角洲等大型城市聚集地.
- 现有的方法与城市规模的碳排放计算和数据收集扎,导致"小样本困境",这阻碍了准确的预测.
- 长江三角洲城市聚集地由于其复杂的社会经济景观和数据可用性问题而面临独特的挑战.
研究的目的:
- 开发一个精确的城市碳排放计算模型,整合社会经济和夜间照明数据.
- 提出一种先进的数据增强技术 (TimeTGAN),以解决碳排放数据集中的小样本问题.
- 实施一个时空预测模型 (ConvLSTM) 来预测城市碳排放,并分析空间相关性.
主要方法:
- 一个新的碳排放计算模型,结合了社会经济指标和校准的夜间照明数据,将城市分为四种类型.
- 一个改进的数据增强模型,TimeTGAN,利用双向时间卷积网络 (BiTCN) 和扩展因果卷积来增强时间序列数据生成.
- 空间自相对应分析以了解排放模式,然后使用ConvLSTM模型进行城市碳排放的空间时间预测.
主要成果:
- 综合碳排放计算模型显著提高了城市规模的准确性.
- 与传统增强方法相比,TimeTGAN模型产生了更高质量的数据集,有效地解决了数据稀缺问题.
- 空间自相关性分析揭示了碳排放中的显著空间相关性,为时空空间预测提供了信息.
结论:
- 该研究成功开发和验证了用于精确城市碳排放计算和数据增强的新方法,这对长江三角洲至关重要.
- 拟议的TimeTGAN和ConvLSTM模型为解决城市碳排放预测中小样本挑战提供了强大的框架.
- 这些发现为通过改进城市排放预测提供了更有效的气候变化缓解战略的基础.
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