搜索结果: 151-165 共查到“知识库 大气物理学”相关记录2275条 . 查询时间(0.69 秒)
中国东部极端气候事件及其变化与东亚夏季风和相应的环流密切相关. 本文使用奇异值分解方法研究了中国近50 年极端温度与极端降水事件频率的关系. 1980~1996 年, 主要的分布型为中国东部的北侧地区极端高温日数较少而极端降水日数较多, 其南侧地区极端高温日数较多对应极端降水日数较少; 这种空间分布自1997 年起呈反向变化, 即较少的极端高温日数和较多的极端降水日数发生在长江以南地区, 以北地区...
Exploiting Potentials from Interdisciplinary Perspectives with Reference to Global Atmosphere and Biomass Burning Management
Ultrafine particles PNEF (Particle Number Emission Factor) Global estimate Biomass burning management Sustainability science
2016/3/28
Biomass burning emitted aerosols are subject of concern in different disciplinary researches from different perspectives
(climate change science from shift of balance in radiative forcing having seve...
Monitoring and Dispersion Modeling of Polybrominated Diphenyl Ethers (PBDEs) in the Ambient Air of Two Municipal Solid Waste Incinerators and a Coal-fired Power Plant
Polybrominated diphenyl ethers (PBDEs) Municipal solid waste incinerators Coal-fired power plant Stack flue gases Dispersion
2016/3/28
The concentration of polybrominated diphenyl ethers (PBDEs) in the ambient air of two municipal solid waste
incinerators (MSWIs) and one coal-fired power plant (TPP) were determined. Along with the s...
Controlling Indoor Bioaerosols Using a Hybrid System of Ozone and Catalysts
Disinfection Indoor air quality Biohazard Germicidal efficacy Microorganism.
2016/3/28
As people spend a greater portion of their time indoors, the likelihood of exposure to biohazards in indoor air is
increasing. This study developed a system to disinfect indoor bioaerosols while prot...
Temporal Variations in Airborne Particulate Matter Levels at an Indoor Bus Terminal and Exposure Implications for Terminal Workers
PM10 PM2.5 Ultrafine particle Bus terminal Station ticket inspector Exposure level
2016/3/28
This study investigates temporal variations in PM levels in Taipei bus terminal and assesses exposure levels for bus
terminal workers. Measurement results show that temporal variations in PM levels i...
Variations in Mass of the PM10, PM2.5 and PM1 during the Monsoon and the Winter at New Delhi
Particulate matters Visibility Washout pattern Time-series variations Mean mass scavenging coefficient
2016/3/28
PM10, PM2.5 and PM1 mass concentrations have been measured at Delhi (28°35'N; 77°12'E) during the August to
December 2007. The running mean of PM10, PM2.5 and PM1 data shows large variations. The PM1...
Some recent papers proposed the use of the satellite images of Google Earth in teaching physics, in particular to see some behaviours of waves. Reflection, refraction, diffraction and interference are...
Isoline retrieval: An optimal sounding method for validation of advected contours
Isoline retrieval: An optimal sounding method for validation of advected contours
2012/2/28
The study of chaotic mixing is important for its potential to improve our understanding of fluid systems. Contour advection simulations provide a good model of the phenomenon by tracking the evolution...
Response of Cloud Condensation Nuclei (> 50 nm) to changes in ion-nucleation
Response Cloud Condensation Nuclei changes ion-nucleation
2012/2/28
In experiments where ultraviolet light produces aerosols from trace amounts of ozone, sulphur dioxide, and water vapour, the number of additional small particles produced by ionization by gamma source...
The Critical Richardson Number and Limits of Applicability of Local Similarity Theory in the Stable Boundary Layer
Flux-profile relationships Critical Richardson number Komogorov cascade Monin-Obukhov similarity theory Nieuwstadt local scaling
2012/2/28
Measurements of atmospheric turbulence made over the Arctic pack ice during the Surface Heat Budget of the Arctic Ocean experiment (SHEBA) are used to determine the limits of applicability of Monin-Ob...
Angular distribution of Bremsstrahlung photons and of positrons for calculations of terrestrial gamma-ray flashes and positron beams
Bremsstrahlung pair production analytical integration of Bethe-Heitler equation distribution of scattering angles
2012/2/28
Within thunderstorms electrons can gain energies of up to hundred(s) of MeV. These electrons can create X-rays and gamma-rays as Bremsstrahlung when they collide with air molecules. Here we calculate ...
A Simple Framework for the Dynamic Response of Cirrus Clouds to Local Diabatic Radiative Heating
Simple Framework the Dynamic Response Cirrus Clouds Local Diabatic Radiative Heating
2012/2/28
This paper presents a simple analytical framework for the dynamic response of cirrus to a local radiative flux convergence, expressible in terms of three independent modes of cloud evolution. Horizont...
登陆我国大陆热带气旋的纬度分布特征
热带气旋 登陆纬度 年际变化 路径分析
2015/6/4
登陆点位置是热带气旋研究的重要课题.为消除因资料单一产生的误差，本文采用1951－2010年中国、美国、日本三套热带气旋最佳路径资料，分析了登陆我国大陆热带气旋频数的年际变化规律，并首次研究了登陆纬度的分布和变化特征，以总结三套资料一致反映的现象为主，得到以下一些有意义的结果：从总体上看，中国资料集内的登陆频数比其它两套资料平均每年约多1个.1970年后三套资料的登陆频数基本保持不变，登陆纬度有较...
Aluminium in an ocean general circulation model compared with the West Atlantic Geotraces cruises
Aluminium Dust deposition Modelling PISCES Biogenic sil-ica GEOTRACES
2012/2/28
A model of aluminium has been developed and implemented in an Ocean General Circulation Model (NEMO-PISCES). In the model, aluminium enters the ocean by means of dust deposition. The internal oceanic ...