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Four takeaways from the IPCC’s report on climate adaptation and vulnerability（图）
IPCC 气候适应 脆弱性报告
2023/7/11
The United Nations’ Intergovernmental Panel on Climate Change (IPCC) has released the second report of its sixth assessment, known as AR6. The first, published in August, focused on the science of cli...
A global survey of aerosol-liquid water cloud overlap based on four years of CALIPSO-CALIOP data
aerosol-liquid water cloud CALIPSO-CALIOP data
2011/2/25
Simulating the radiative impacts of aerosols located above liquid water clouds presents a significant challenge. In particular, absorbing aerosols, such as smoke, may have significant impact in such s...
Ozone, carbon monoxide and nitrogen oxides time series at four alpine GAW mountain stations in central Europe
Ozone carbon monoxide nitrogen oxides four alpine GAW mountain stations central Europe
2010/12/28
Long-term, ground based in-situ observations of ozone (O3) and its precursor gases nitrogen dioxide (NO2) and carbon monoxide (CO) from the four sites Hohenpeissenberg and Zugspitze (D), Sonnblick (A)...
Empirical estimates of CCN from aerosol optical properties at four remote sites
Empirical estimates CCN aerosol optical properties four remote sites
2010/8/16
This study presents an empirical method to estimate the CCN concentration as a function of percent supersaturation. The aerosol optical properties, backscatter fraction and single scatter albedo, func...
Lidar characterization of the Arctic atmosphere during ASTAR 2007: four cases studies of boundary layer, mixed-phase and multi-layer clouds
Lidar characterization the Arctic atmosphere ASTAR 2007 boundary layer mixed-phase multi-layer clouds
2010/8/12
During the Arctic Study of Tropospheric Aerosol, Clouds and Radiation (ASTAR), which was conducted in Svalbard in March and April 2007, tropospheric Arctic clouds were observed with two ground-based b...
Relationships between size-fractionated indoor and outdoor trace elements at four retirement communities in southern California
size-fractionated indoor outdoor trace elements four retirement communities southern California
2009/7/22
Indoor and outdoor water soluble trace elements (TEs) were analyzed on quasi-ultrafine (UF), accumulation, and coarse PM filter samples collected at four retirement communities, three located in the S...
Inter-comparison of four different carbon monoxide measurement techniques and evaluation of the long-term carbon monoxide time series of Jungfraujoch
carbon monoxide measurement techniques long-term carbon monoxide time series Jungfraujoch
2009/6/16
Despite the importance of carbon monoxide (CO) for the overall oxidative capacity of the atmosphere, there is still considerable uncertainty in ambient measurements of CO. To address this issue, an in...
Summertime PM2.5 ionic species in four major cities of China: nitrate formation in an ammonia-deficient atmosphere
PM2.5 ionic species China nitrate formation ammonia-deficient atmosphere
2009/3/13
Strong atmospheric photochemistry in summer can produce a significant amount of secondary aerosols, which may have a large impact on regional air quality and visibility. In the study reported herein,...
Intercomparison of four different in-situ techniques for ambient formaldehyde measurements in urban air
four different in-situ techniques ambient formaldehyde measurements urban air
2009/1/14
Results from an intercomparison of several currently used in-situ techniques for the measurement of atmospheric formaldehyde (CH2O) are presented. The measurements were carried out at Bresso, an urban...
Aerosol direct radiative effect at the top of the atmosphere over cloud free ocean derived from four years of MODIS data
Aerosol direct radiative effect top of the atmosphere cloud free ocean MODIS data
2008/12/30
A four year record of MODIS spaceborne data provides a new measurement tool to assess the aerosol direct radiative effect at the top of the atmosphere. MODIS derives the aerosol optical thickness and ...
Ambient aerosol concentrations of sugars and sugar-alcohols at four different sites in Norway
Ambient aerosol sugars sugar-alcohols Norway
2008/12/17
Sugars and sugar-alcohols are demonstrated to be important constituents of the ambient aerosol water-soluble organic carbon fraction, and to be tracers for primary biological aerosol particles (PBAP)....
Towards closure between measured and modelled UV under clear skies at four diverse sites
UV UVB
2008/12/11
The purpose of this work is determine the extent of closure between measurements and models of UV irradiances at diverse sites using state of the art instruments, models, and the best available data a...
Four-dimensional variational data assimilation for inverse modelling of atmospheric methane emissions: method and comparison with synthesis inversion
Four-dimensional variational data atmospheric methane synthesis inversion
2008/11/25
A four-dimensional variational (4D-Var) data assimilation system for inverse modelling of atmospheric methane emissions is presented. The system is based on the TM5 atmospheric transport model. It can...
Climate model boundary conditions for four Cretaceous time slices
climate model Cretaceous time slices
2008/11/7
General circulation models (GCMs) are useful tools for investigating the characteristics and dynamics of past climates. Understanding of past climates contributes significantly to our overall understa...
