摘要
根据１９８２年８月至１９８３年７月青藏高原辐射平衡资料，详细讨论了该地区活动面温度与地表温度的关系，提出了两种计算地表长波辐射的参数化方法Ｕ＝ｋδσ（Ｔ０＋２７３）４和Ｕ＝δσ［（Ｔ０＋２７３）＋ΔＴ］４。经反演检验，两式的拟合精度相同（均为３．６％），并适用于作瞬时和平均通量密度计算，文中还就ｋ、ΔＴ的日、年变化作了分析，计算并讨论了青藏高原地表长波辐射的气候特征。
In the context of August ,1982-July ,1983 radiation balance data of the Qinghai-Xizang Plateau, study is made of the relation between the active surface temperature and surface temperature, proposing two parameterization schemes on Surface Long Wave Radiation (SLWR) of the form: U=kδσ(T 0+273) 4 and U=δσ[(T 0+273)+ Δ T] 4 , where k and Δ T are indicated by parameterized equations, separately, others being in conventional notation. Retrieved verification shows two formulas to be of the same fitting accuracy with the mean relative error of 3.6 % ec. and suitable for calculating instantaneous and mean flux density, alongside analysed daily and annual variations of k/ Δ T . In the end, SLWR in the target area is investigated and climatic characteristics discussed.
出处
《南京气象学院学报》
CSCD
1997年第3期318-325,共8页
Journal of Nanjing Institute of Meteorology
基金
国家攀登B计划项目"青藏高原试验"
关键词
青藏高原
地表
长波辐射
参数化
气候计算
Qinghai Xizang plateau, surface long wave radiation, active surface temperature, parameterization
