丁家琛
准聘助理教授
邮箱: jdingali@nju.edu.cn
办公室: 大气楼A504
个人网页: https://jdingali.github.io/
个人简历-丁家琛20250113.pdf
个人简介
丁家琛博士的研究聚焦辐射传输与光散射，旨在提升大气测量、遥感及气候/天气建模的精度与效率，深化对大气、海洋及陆地环境的认知。
近期，其在均质及双层椭球粒子光散射研究方面取得重要突破。基于麦克斯韦方程组，在椭球坐标系下推导得到椭球粒子光学特性的解析解。相较于以往研究，新解法的数值稳定性显著提升，适用最大粒径扩展30倍以上，可覆盖所有大气气溶胶粒子的粒径谱。该方法已成功应用于粗模态气溶胶、海洋粒子等非球形粒子的光学特性模拟，为遥感反演算法及气候/天气建模的辐射传输参数化提供关键支撑；同时可用于星际尘埃光学特性建模及生物细胞相关研究。
其成功研发适用于大气-陆地-海洋耦合系统的矢量辐射传输模型（VRTM）及配套雅可比计算模型，为遥感应用提供支撑。该模型基于前沿辐射传输与光散射理论技术构建，兼具高精度与高效率优势。近期通过模型改进，拓展了其对非随机取向及手性粒子的适用性——这类粒子在多数同类模型中常被忽略。数值模拟结果表明，大气中非随机取向及手性粒子的反射率与偏振信号显著，可被热红外偏振仪及圆偏振测量设备有效探测。
此外，其还利用可见光、红外及微波波段卫星观测数据，开展冰云与沙尘气溶胶的光学及微物理特性研究。例如，通过结合星载激光雷达与辐射计数据，实现对卷云微物理及光学特性的有效约束；研发微波频段与温度相关的冰晶光学特性模型，可支撑雷达、微波及亚毫米波辐射遥感应用。
同时，其积极探索辐射传输与光散射技术在行星科学、天文学等领域的跨学科应用。针对2022年观测到的火星光晕现象，通过光散射模拟分析，明确该光晕由水冰与二氧化碳冰晶混合物形成；其采用蒙特卡洛方法研发三维辐射传输模型，结合超新星观测数据反演星际尘埃特性，并基于此模型提出估算地球与大麦哲伦云（LMC）距离的创新方法。
教育经历
| 2019.05 | 得克萨斯农工大学大气科学系 大气科学专业 博士 |
| 2014.07 | 南京大学工程管理学院 光电信息工程专业 学士 |
工作经历
| 2026.01至今 | 米兰milan官方网站 助理教授 |
| 2022.12–2025.11 | 得克萨斯农工大学大气科学系 助理研究员 |
| 2019.06–2022.11 | 得克萨斯农工大学大气科学系 博士后 |
研究兴趣
大气辐射传输
光与电磁散射
大气海洋遥感
行星大气遥感
星际尘埃探测
获奖情况
2025 Peter C. Waterman Award (young scientist award for theory and application of electromagnetic and light scattering), the 21th Electromagnetic and Light Scattering Conference
学术专著
| 1) | Yang, P., J. Ding, M. Saito, and G. Kattawar, 2026: Physical-Geometric Optics for Light-Scattering by Nonspherical Particles: Applications to Remote Sensing and Climate Science. Cambridge University Press. |
| 2) | Yang, P., J. Ding, and G. Kattawar, 2023: Applications of Maxwell’s equations to light scattering by dielectric particles. Chapter 7 in Light, Plasmonics and Particles, Eds. M. Pınar Mengüç and Mathieu Francoeur, Elsevier. |
| 3) | Yang, P., J. Ding, and G. Kattawar, 2023: Maxwell's equations and particle single-scattering properties. Chapter 2 in Light, Plasmonics and Particles, Eds. M. Pınar Mengüç and Mathieu Francoeur, Elsevier. |
| 4) | Contribution to the Chapter 5 of “Sun, B., L. Bi, P. Yang, M. Kahnert, and G. Kattawar, 2019: Invariant Imbedding T-matrix Method for Light Scattering by Nonspherical and Inhomogeneous Particles, Elsevier.” |
代表性论文
| Ding, J., and P. Yang, 2025: Separation of Variables Method for Light Scattering by Two-Layer Spheroids with Size Parameters up to 1000, Optics Express, 33(19), 40532-40564. | |
| Ding, J., and P. Yang, 2025: Improving Numerical Stability of the Separation of Variables Method for Light Scattering by Spheroids with Size Parameters up to 1000, Journal of Quantitative Spectroscopy & Radiative Transfer, 347, 109644. | |
| Ding, J., and P. Yang, 2023: Lorenz-Mie Theory-Type Solution for Light Scattering by Spheroids with Small-to-Large Size Parameters and Aspect Ratios, Optics Express, 31(24), 40937-40951. | |
| Ding, J., and P. Yang, 2023: Tangent-Linear and Adjoint Models for the Transfer of Polarized Radiation, Journal of Atmospheric Sciences, 80(1), 73-89. | |
| Ding, J., P. Yang, M. T. Lemmon, and Y. Zhang, 2023: Simulations of Halos Produced by Carbon Dioxide Ice Crystals in the Martian Atmosphere, Geophysical Research Letters, 50, e2023GL103457. | |
| Ding, J, P. Yang, and G. Videen, 2023: On the Relation Between Ice-Crystal Scattering Phase Function at 180° and Particle Size: Implication to Lidar-based Remote Sensing of Cirrus Clouds, Optics Express, 31(11), 18680-18692. | |
| Ding, J., Wang, L., Brown, P., and Yang, P., 2021: Radiative Transfer Modeling of An SN 1987A Light Echo —AT2019xis, The Astrophysical Journal, 919, 104. | |
| Ding, J., P. Yang, M. D. King, S. Platnick, X. Liu, K. G. Meyer, and C. Wang, 2019. A Fast Vector Radiative Transfer Model for the Atmosphere-Ocean Coupled System, Journal of Quantitative Spectroscopy & Radiative Transfer, p.106667. | |
| Ding, J., P. Yang, R. E. Holz, S. Platnick, K. G. Meyer, M. A. Vaughan, Y. Hu, and M. D. King, 2016: Ice cloud backscatter study and comparison with CALIPSO and MODIS satellite data, Optics Express, 24, 620-636. | |
| Ding, J., M. Li, M. Tang, and Y. Song, 2013: BER performance of MSK in a ground-to-satellite laser uplink system under the influence of atmospheric turbulence and detector noise, Optics Letters, 38(18), 3488-3491. |