气象2026，Vol.52Issue(8)：905-915,11.DOI:10.7519/j.issn.1000-0526.2026.061101
云雷达与FY-4B融合反演云顶高度方法研究
Research on the Method for Inversion Cloud Top Height by Cloud Radar and FY-4B
摘要
Abstract
The satellite-ground temperature difference was derived from the cloud top temperature of FY-4B and the air temperature of automatic weather stations.Combined with the cloud top height(CTH)ob-served by cloud radar,the satellite-ground vertical mean temperature lapse rate(SG-VMTR)was calculat-ed and compared with the vertical temperature lapse rate(γ)fitted from the radiosonde temperature profile at the same stations.Meanwhile,the SG-VMTR was applied to other adjacent satellite pixels to achieve the fusion inversion of the satellite CTH in the surrounding areas of the cloud radar,and the inversion re-sults were verified and analyzed.The results show that the SG-VMTR and γ values calculated at the same station were closely aligned and exhibited consistent temporal trends.The variation trends and statistical characteristics of the SG-VMTR at adjacent cloud radar stations were similar and can be used as substitutes to a certain extent.The correlation coefficient between the fused satellite-derived CTH and the cloud radar observed CTH was 0.90,while the root mean square error decreased by 720 m and the bias reduced to-17.7 m compared to pre-fusion results.This study lays a foundation for developing subsequent satellite-ground fusion regional CTH products.关键词
云顶高度/FY-4B/毫米波云雷达/温度递减率/星地融合Key words
cloud top height(CTH)/FY-4B/millimeter-wave cloud radar/temperature lapse rate/satellite-ground fusion分类
天文与地球科学引用本文复制引用
胡树贞,陶法,张雪芬,王超杰,王志成,茆佳佳..云雷达与FY-4B融合反演云顶高度方法研究[J].气象,2026,52(8):905-915,11.基金项目
国家自然科学基金项目(U2442214)和中国气象局气象探测中心实验室开放基金项目(MOC2026ZD02)共同资助 （U2442214）
