Influence of water suspension dispersibility on the toxicity of Lake Ladoga blooming

Doklady Earth Sciences -     

迟熟中粳武育粳3号温光模式的建立与分析

本文通过武育粳3号的播期试验研究,利用生育期的试验资料,结合本地的温光资源,建立其温光模式,从中分析该品种有感温性强,感光性弱的特性,在本地区应采用稀播长秧龄等配套措施,确保在安全齐穗期内齐穗,达到高产的目的。     

Optical Phenomena Observed upon Some Launches of Russian Rockets

In this paper, unusual optical phenomena observed in our country and abroad upon launches of Russian rockets are discussed and interpreted: they are regarded as the aftereffects of sunlight scattering by gas-dust clouds created by rocket fuel combustion products in different modes of engine operation. The results of instrumental observations of the clouds can be used to study physical processes in the upper atmosphere.     

Dynamics of occurrence frequency of extreme anomalies of monthly mean air temperature in Georgia in the 20th century and its effect on precipitation and on the river water discharge

The dynamics of the occurrence frequency of extreme anomalies of monthly mean air temperature and its effect on precipitation and river water discharge in the 20th century are studied using weather observations at 40 stations and data on the hydrological regime of 34 rivers in Georgia.     

风廓线雷达探测大气返回信号谱的仿真模拟

利用2008年1—9月北京延庆地区对流层CFL-08风廓线雷达和2009年7—12月广东东莞地区边界层CFL-03风廓线雷达晴空大气探测资料,对大气返回信号功率谱密度分布及雷达系统噪声幅度统计特征进行分析。基于大气返回信号的谱分布符合高斯分布的统计结果,采用高斯模型对大气返回信号谱进行模拟;雷达系统噪声是白噪声,其谱线幅度的统计特征呈高斯分布,在此基础上,通过生成高斯分布随机函数对雷达探测输出信号进行信号谱分布的仿真模拟,并采用雷达探测信号的谱参数对仿真模拟进行检验,效果较好。该文应用仿真模拟的数据,对风廓线雷达信息处理方法及其处理精度进行了初步试验和分析。     

A macroseismic study of the Taldy-Sai caravanserai in the Kara-Bura River valley (Talas basin,Kyrgyzstan)

We report a macroseismic study of a ruined medieval building, a small caravanserai located along the caravan way from the Talas valley to the Chatkal and Fergana valleys in Kyrgyzstan. The ruins document several events in which the caravanserai was destroyed, apparently during earthquakes, and was rebuilt or repaired. The earliest earthquake occurred soon after the building was put up, about 400 years ago, according to radiocarbon dating of charcoal, and another event shook the area between 400 and 50 years BP. After being damaged in the ultimate earthquake, in the middle of the 20th century, the building was eventually abandoned.