The Radiative Effects of Martian Water Ice Clouds on the Local Atmospheric Temperature Profile

Icarus ◽  
2000 ◽  
Vol 145 (2) ◽  
pp. 524-532 ◽  
Author(s):  
A Colaprete
Keyword(s):  
Temperature Profile ◽  
Atmospheric Temperature ◽  
Radiative Effects ◽  
Ice Clouds ◽  
Water Ice ◽  
Atmospheric Temperature Profile

Rayleigh-Raman lidar used for atmospheric temperature profile measurement

2010 ◽  
Vol 22 (7) ◽  
pp. 1449-1452
Author(s):  
卜令兵 Bu Lingbing ◽  
郭劲秋 Guo Jinqiu ◽  
田力 Tian Li ◽  
黄兴友 Huang Xingyou ◽  
刘博 Liu Bo ◽  
...  
Keyword(s):  
Temperature Profile ◽  
Atmospheric Temperature ◽  
Profile Measurement ◽  
Raman Lidar ◽  
Atmospheric Temperature Profile

Temperature effects in high-energy muon fluxes and the problem of reconstructing the atmospheric temperature profile

2013 ◽  
Vol 77 (5) ◽  
pp. 569-571
Author(s):  
M. G. Kostyuk ◽  
V. B. Petkov ◽  
R. V. Novoseltseva ◽  
M. M. Boliev ◽  
M. D. Berkova ◽  
...  
Keyword(s):  
Temperature Profile ◽  
Temperature Effects ◽  
Atmospheric Temperature ◽  
High Energy ◽  
High Energy Muon ◽  
Atmospheric Temperature Profile

scholarly journals Effects of CO2 Changes on Hyperspectral Infrared Radiances and Its Implications on Atmospheric Temperature Profile Retrieval and Data Assimilation in NWP

2020 ◽  
Vol 12 (15) ◽  
pp. 2401
Author(s):  
Di Di ◽  
Yunheng Xue ◽  
Jun Li ◽  
Wenguang Bai ◽  
Peng Zhang
Keyword(s):  
Seasonal Variation ◽  
Temperature Profile ◽  
Weather Prediction ◽  
Atmospheric Temperature ◽  
Trace Gas ◽  
Co2 Absorption ◽  
Radiative Effect ◽  
Atmospheric Temperature Profile ◽  
Temperature Signal ◽  
Infrared Radiances

Although atmospheric CO2 is a trace gas, it has seasonal variations and has increased over the last decade. Its seasonal variation and increase have substantial radiative effects on hyperspectral infrared (IR) radiance calculations in both longwave (LW) and shortwave (SW) CO2 absorption spectral regions that are widely used for weather and climate applications. The effects depend on the spectral coverage and spectral resolution. The radiative effect caused by the increase of CO2 has been calculated to be greater than 0.5 K within 5 years, whereas a radiative effect of 0.1–0.5 K is introduced by the seasonal variation in some CO2 absorption spectral regions. It is important to take into account the increasing trend and seasonal variation of CO2 in retrieving the atmospheric temperature profile from hyperspectral IR radiances and in the radiance assimilation in numerical weather prediction (NWP) models. The simulation further indicates that it is very difficult to separate atmospheric temperature and CO2 information from hyperspectral IR sounder radiances because the atmospheric temperature signal is much stronger than that of CO2 in the CO2 absorption IR spectral regions.

scholarly journals Advances in atmospheric temperature profile measurements using high spectral resolution lidar

2018 ◽  
Vol 176 ◽  
pp. 01023
Author(s):  
Ilya I. Razenkov ◽  
Edwin W. Eloranta
Keyword(s):  
Temperature Profile ◽  
Spectral Resolution ◽  
Atmospheric Temperature ◽  
High Spectral Resolution ◽  
Absolute Calibration ◽  
Temperature Sensitive ◽  
Backscatter Coefficient ◽  
Rayleigh Backscattering ◽  
Atmospheric Temperature Profile ◽  
High Spectral Resolution Lidar

This paper reports the atmospheric temperature profile measurements using a University of Wisconsin-Madison High Spectral Resolution Lidar (HSRL) and describes improvements in the instrument performance. HSRL discriminates between Mie and Rayleigh backscattering [1]. Thermal motion of molecules broadens the spectrum of the transmitted laser light due to Doppler effect. The HSRL exploits this property to allow the absolute calibration of the lidar and measurements of the aerosol volume backscatter coefficient. Two iodine absorption filters with different line widths are used to resolve temperature sensitive changes in Rayleigh backscattering for atmospheric temperature profile measurements.

scholarly journals Direct measurements of the effect of biomass burning over the Amazon on the atmospheric temperature profile

2009 ◽  
Vol 9 (21) ◽  
pp. 8211-8221 ◽  
Author(s):  
A. Davidi ◽  
I. Koren ◽  
L. Remer
Keyword(s):  
Temperature Profile ◽  
Amazon Basin ◽  
Radiation Energy ◽  
Atmospheric Temperature ◽  
Lower Atmosphere ◽  
Aerosol Layer ◽  
Aerosol Absorption ◽  
A Value ◽  
Direct Measurements ◽  
Atmospheric Temperature Profile

Abstract. Aerosols suspended in the atmosphere interact with solar radiation and clouds, thus change the radiation energy fluxes in the atmospheric column. In this paper we measure changes in the atmospheric temperature profile as a function of the smoke loading and the cloudiness, over the Amazon basin, during the dry seasons (August and September) of 2005–2008. We show that as the aerosol optical depth (AOD) increases from 0.02 to a value of ~0.6, there is a decrease of ~4°C at 1000 hPa, and an increase of ~1.5°C at 850 hPa. The warming of the aerosol layer at 850 hPa is likely due to aerosol absorption when the particles are exposed to direct illumination by the sun. The large values of cooling in the lower layers could be explained by a combination of aerosol extinction of the solar flux in the layers aloft together with an aerosol-induced increase of cloud cover which shade the lower atmosphere. We estimate that the increase in cloud fraction due to aerosol contributes about half of the observed cooling in the lower layers.

Sign in / Sign up

Export Citation Format

Share Document