晴空或少云状况下紫外辐射强度及指数预报模式  

Ground-Based Ultraviolet Radiation Operational Prediction Model in Clear/Part Cloudy Day

作　　者：傅炳珊[1] 车少静[1] 陈渭民[2] 马翠平 

机构地区：[1]石家庄市气象局,河北石家庄050081 [2]南京气象学院电子工程系,江苏南京210044 [3]河北省气象局,河北石家庄050021

出　　处：《南京气象学院学报》2002年第3期321-327,共7页Journal of Nanjing Institute of Meteorology

基　　金：国家自然科学基金项目 4 0 1 75 0 07

摘　　要：在大气辐射传输理论的基础上 ,利用中分辨率大气辐射传输模式 ,应用可测得的实际大气物理参数 ,建立晴空或少云天气状况下石家庄市紫外波段 (2 80～40 0 nm)辐射强度及指数预报模式 ,考虑了臭氧的两个吸收带。晴空条件下的散射主要考虑了分子和气溶胶的多次散射 ,少云时还考虑了云对紫外辐射的影响。其中多次散射的计算采用了离散坐标法。且对由于臭氧实时资料的短缺造成的误差进行了系统订正 ,并将订正结果与实况资料进行了对比。结果表明 。Based on the multiple scattered theory,using a moderate resolution radiative transfer model,a method is developed to calculate the ground-based ultraviolet solar radiation of Shijiazhuang with measured atmospheric parameters as inputs.The model includes two major bands of ozone absorption.For the clear sky, the model mainly considers the multiple scattering of molecules and aerosols;for the part cloudy sky,the model also includes the effect of cloud on ultraviolet solar radiation.The discrete coordinate method was used in the computation of multiple scattering.In addition,the errors caused by the lack of ozone data are corrected.The model results are compared with the real measurements,and results show that the both are in good agreement.This means that the corrected model results of ultraviolet solar radiation can be used for operational forecast.

关 键 词：晴空少云 紫外线辐射强度预报 紫外线辐射指数预报 臭氧 系统订正 气溶胶 

分 类 号：P422.62[天文地球—大气科学及气象学]