搜索结果: 61-75 共查到“大气科学 optical”相关记录99条 . 查询时间(0.125 秒)
On the isolation of elemental carbon (EC) for micro-molar 14C accelerator mass spectrometry: development of a hybrid reference material for 14C-EC accuracy assurance, and a critical evaluation of the thermal optical kinetic (TOK) EC isolation procedure
elemental carbon EC TOK
2009/2/18
The primary objective of the research reported here has been the development of a hybrid reference material (RM) to serve as a test of accuracy for elemental carbon (EC) isotopic (14C) speciation meas...
Intercomparison of satellite retrieved aerosol optical depth over ocean during the period September 1997 to December 2000
satellite retrieved aerosol optical depth ocean
2009/2/11
Monthly mean aerosol optical depth (AOD) over ocean is compared from a total of 9 aerosol retrievals during a 40 months period. Comparisons of AOD have been made both for the entire period and sub per...
Aerosol optical depth measurements by airborne sun photometer in SOLVE II: Comparisons to SAGE III, POAM III and airborne spectrometer measurements
Aerosol optical depth measurements airborne sun photometer SAGE III POAM III
2009/2/10
The 14-channel NASA Ames Airborne Tracking Sunphotometer (AATS-14) measured solar- beam transmission on the NASA DC-8 during the second SAGE III Ozone Loss and Validation Experiment (SOLVE II). This p...
A review of biomass burning emissions part III: intensive optical properties of biomass burning particles
biomass burning emissions optical properties biomass burning particles
2009/2/7
Because of its wide coverage over much of the globe, biomass burning has been widely studied in the context of direct radiative forcing. Such study is warranted as smoke particles scatter and at times...
On the importance of cumulus penetration on the microphysical and optical properties of stratocumulus clouds
cumulus penetration microphysical and optical properties stratocumulus clouds
2009/2/7
Owing to their extensive spatial coverage, stratocumulus clouds play a crucial role in the radiation budget of the earth. Climate models need an accurate characterisation of stratocumulus in order to ...
Column ozone and aerosol optical properties retrieved from direct solar irradiance easurements during SOLVE II
Column ozone aerosol optical properties direct solar irradiance easurements SOLVE II
2009/2/7
Direct observation of the Sun at large solar zenith angles during the second SAGE III Ozone Loss and Validation Experiment (SOLVE II)/Validation of International Satellites and study of Ozone Loss (VI...
Aerosol physical and optical properties in the Eastern Mediterranean Basin, Crete, from Aerosol Robotic Network data
Aerosol physical optical properties Eastern Mediterranean Basin
2009/1/21
In this study, we investigate the aerosol optical properties, namely aerosol extinction optical thickness (AOT), Angström parameter and size distribution over the Eastern Mediterranean Basin, usi...
Impact of ship emissions on the microphysical, optical and radiative properties of marine stratus: a case study
ship emissions microphysical optical radiative properties of marine stratus
2009/1/16
Modifications of existing clouds by the exhaust of ships are well-known but inadequately quantified impacts, which could contribute to climate change. The perturbation of a cloud layer by ship-generat...
Refining temperature measures in thermal/optical carbon analysis
Refining temperature measures thermal/optical carbon analysis
2009/1/14
Thermal/optical methods have been widely used for quantifying total carbon (TC), organic carbon (OC), and elemental carbon (EC) in ambient and source particulate samples. Thermally defined carbon frac...
Optical and physical properties of aerosols in the boundary layer and free troposphere over the Amazon Basin during the biomass burning season
Optical physical properties boundary layer free troposphere Amazon Basin biomass burning season
2009/1/13
As part of the Large Scale Biosphere-Atmosphere Experiment in Amazonia – Smoke, Aerosols, Clouds, Rainfall and Climate (LBA-SMOCC) campaign, detailed surface and airborne aerosol measurements were per...
Evolution of aerosol optical thickness over Europe during the August 2003 heat wave as seen from CHIMERE model simulations and POLDER data
aerosol optical thickness Europe heat wave CHIMERE model POLDER data
2009/1/8
This study describes the atmospheric aerosol load encountered during the large-scale pollution episode that occurred in August 2003, by means of the aerosol optical thicknesses (AOTs) measured at 865 ...
An AeroCom initial assessment – optical properties in aerosol component modules of global models
AeroCom initial assessment optical properties aerosol component modules global models
2009/1/8
The AeroCom exercise diagnoses multi-component aerosol modules in global modeling. In an initial assessment simulated global distributions for mass and mid-visible aerosol optical thickness (aot) were...
Aerosol direct radiative effects over the northwest Atlantic, northwest Pacific, and North Indian Oceans: estimates based on in-situ chemical and optical measurements and chemical transport modeling
Aerosol direct radiative effects the northwest Atlantic northwest Pacific North Indian Oceans in-situ chemical and optical measurements chemical transport modeling
2009/1/7
The largest uncertainty in the radiative forcing of climate change over the industrial era is that due to aerosols, a substantial fraction of which is the uncertainty associated with scattering and ab...
Measurements of optical properties of atmospheric aerosols in Northern Finland
optical property atmospheric aerosols Northern Finland
2009/1/6
Three years of continuous measurements of aerosol optical properties and simultaneous aerosol number size distribution measurements at Pallas GAW station, a remote subarctic site in the northern borde...
Aerosol optical properties at Lampedusa （Central Mediterranean）. 2. Determination of single scattering albedo at two wavelengths for different aerosol types
Aerosol optical properties Lampedusa Determination of single scattering albedo wavelengths for different aerosol types
2009/1/4
. Aerosol optical properties were retrieved from direct and diffuse spectral irradiance measurements made by a multi-filter rotating shadowband radiometer (MFRSR) at the island of Lampedusa (35.5° N, ...