搜索结果: 91-102 共查到“大气科学 effects”相关记录102条 . 查询时间(0.343 秒)
The effects of heating by transported dust layers on cloud and precipitation: a numerical study
transported dust layers cloud
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2008/11/12
There have been numerous recent publications showing that mineral dust might be a good absorber for solar radiation in addition to its capability to act as cloud condensation nuclei (CCN) and ice form...
Cloud microphysics and aerosol indirect effects in the global climate model ECHAM5-HAM
microphysics aerosol ECHAM5-HAM
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2008/11/12
The double-moment cloud microphysics scheme from ECHAM4 that predicts both the mass mixing ratios and number concentrations of cloud droplets and ice crystals has been coupled to the size-resolved aer...
The effects of airmass history on new particle formation in the free troposphere: case studies
airmass history particle formation free troposphere
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2008/11/11
Recent aircraft studies showed that new particle formation (NPF) is very active in the free troposphere. And, these observations lead to a new question: when does NPF not occur? Here, we provide case ...
Global anthropogenic aerosol effects on convective clouds in ECHAM5-HAM
anthropogenic convective clouds ECHAM5-HAM
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2008/11/4
Aerosols affect the climate system by changing cloud characteristics in many ways. They act as cloud condensation and ice nuclei and may have an influence on the hydrological cycle. Here we investigat...
Normal mode Rossby waves and their effects on chemical composition in the late summer stratosphere
Normal mode Rossby waves chemical composition late summer stratosphere
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2008/11/4
During past MANTRA campaigns, ground-based measurements of several long-lived chemical species have revealed quasi-periodic fluctuations on time scales of several days. These fluctuations could confou...
Observations of the effects of temperature on atmospheric HNO3, ΣANs, ΣPNs, and NOx: evidence for a temperature-dependent HOx source
Observations of the effects of temperature atmospheric HNO3 ΣANs ΣPN NOx
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2008/11/3
We describe observations of atmospheric reactive nitrogen compounds including NO, NO2, total peroxy nitrates, total alkyl nitrates, and HNO3 and their correlation with temperature. The measurements we...
Modelling sea salt aerosol and its direct and indirect effects on climate
sea salt aerosol indirect effects climate
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2008/10/31
A size-dependent sea salt aerosol parameterization was developed based on the piecewise log-normal approximation (PLA) for aerosol size distributions. Results of this parameterization from simulations...
Effects of uncertainties in the thermodynamic properties of aerosol components in an air quality model – Part 1: Treatment of inorganic electrolytes and organic compounds in the condensed phase
thermodynamic properties aerosol components air quality model inorganic electrolytes condensed phase
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2008/10/30
Air quality models that generate the concentrations of semi-volatile and other condensable organic compounds using an explicit reaction mechanism require estimates of the physical and thermodynamic pr...
Short- and medium-term atmospheric constituent effects of very large solar proton events
atmospheric constituent solar proton
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2008/10/29
Solar eruptions sometimes produce protons, which impact the Earth's atmosphere. These solar proton events (SPEs) generally last a few days and produce high energy particles that precipitate into the E...
Cooling lakes while the world warms: Effects of forest regrowth and increased dissolved organic matter on the thermal regime of a temperate, urban lake
Cooling lakes while the world warms Effects of forest regrowth increased dissolved organic matter the thermal regime of a temperate urban lake
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2014/4/18
Depending on the magnitudes and directions of changes in air temperatures, winds, and underwater light attenuation, lakes may either warm or cool. Here we report a 28-yr decrease in the whole-lake ave...
Symposium 08 Effects of global climate change on birds: evidence and predictions: Introduction
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2007/12/11
Interdecadal change in Western Pacific Subtropical High and climatic effects
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2007/8/24
Abstract: Western North Pacific Subtropical High is a very important atmospheric circulation system influencing the summer climate over eastern China. Its interdecadal change is analyzed i...