SAGE II aerosol data validation based on retrieved aerosol model size distribution from SAGE II aerosol measurements [0.03%]
基于SAGE II气溶胶测量反演的气溶胶模型尺寸分布的SAGE II气溶胶数据验证
P H Wang,M P McCormick,L R McMaster et al.
P H Wang et al.
This paper describes an investigation of the comprehensive aerosol correlative measurement experiments conducted between November 1984 and July 1986 for satellite measurement program of the Stratospheric Aerosol and Gas Experiment (SAGE II)...
Comparative Study
Journal of geophysical research. 1989 Jun 20;94(D6):8381-93. DOI:10.1029/jd094id06p08381 1989
SAGE II aerosol validation: selected altitude measurements, including particle micromeasurements [0.03%]
SAGE II气溶胶检验：包括微粒测量的选测高度数据
V R Oberbeck,J M Livingston,P B Russell et al.
V R Oberbeck et al.
Correlative aerosol measurements taken at a limited number of altitudes during coordinated field experiments are used to test the validity of particulate extinction coefficients derived from limb path solar radiance measurements taken by th...
Drainage pits in cohesionless materials: implications for surface of Phobos [0.03%]
无粘性材料中的排水坑：对火卫一表面的意义
K C Horstman,H J Melosh
K C Horstman
Viking orbiter images show grooves and chains of pits crossing the surface of Phobos, many of which converge toward the large crater Stickney or its antipode. Although it has been proposed that the pits and grooves are chains of secondary c...
Gas chromatographic instrumentation for the analysis of aerosols and gases in Titan's atmosphere [0.03%]
用于土卫六大气气溶胶和气体分析的气相色谱仪仪器
T W Scattergood,J R Valentin,B J O&#x;Hara et al.
T W Scattergood et al.
During the next decade or so, NASA, in conjunction with the European Space Agency, plans to send a spacecraft to the Saturnian system so that local studies of Saturn and its satellite, Titan, can be made. In order to study the atmosphere of...
V R Oberbeck,D O&#x;Hara,G C Carle
V R Oberbeck
In this paper we consider design of instruments for collection of aerosols during entry in Titan's atmosphere. Major constraints on designs are small sample collection time, low aerosol column density, and the need to collect 1-10 microgram...
H G Marshall,J C Walker,W R Kuhn
H G Marshall
We study the interactions between the geochemical cycles of carbon and long-term changes in climate. Climate change is studied with a simple, zonally averaged energy balance climate model that includes the greenhouse effect of carbon dioxid...
A slightly more massive young Sun as an explanation for warm temperatures on early Mars [0.03%]
一个稍重的年轻太阳可以解释早期火星上的温暖气候
D P Whitmire,L R Doyle,R T Reynolds et al.
D P Whitmire et al.
The valley network channels on the heavily cratered ancient surface of Mars suggest the presence of liquid water approximately 3.8 Gyr ago. However, the implied warm climate is difficult to explain in the context of the standard solar model...
The circum-Chryse region as a possible example of a hydrologic cycle on Mars: geologic observations and theoretical evaluation [0.03%]
火星 circum-克律塞地区作为可能的水文循环区域：地质观察与理论评估
J M Moore,G D Clow,W L Davis et al.
J M Moore et al.
The transection and superposition relationships among channels, chaos, surface materials units, and other features in the circum-Chryse region of Mars were used to evaluate relative age relationships and evolution of flood events. Channels ...
Spectrophotometry and organic matter on Iapetus. 1. Composition models [0.03%]
土卫七紫外可见光分光光度法及有机物质。1.组成模型
P D Wilson,C Sagan
P D Wilson
Iapetus shows a greater hemispheric albedo asymmetry than any other body in the solar system. Hapke scattering theory and optical constants measured in the laboratory are used to identify possible compositions for the dark material on the l...
Carbon isotopic analysis of atmospheric methane by isotope-ratio-monitoring gas chromatography-mass spectrometry [0.03%]
采用同位素比率监测气相色谱-质谱法对大气中甲烷进行碳同位素分析
D A Merritt,J M Hayes,D J Des Marais
D A Merritt
Less than 15 min are required for the determination of delta 13CPDB with a precision of 0.2% (1 sigma, single measurement) in 5-mL samples of air containing CH4 at natural levels (1.7 ppm). An analytical system including a sample-introducti...