Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A Case Study of Cirrus Cloud Radiative Properties in the Mid and Far Infrared
Author: Cirrus Cloud Radiative Properties in the Thermal Infrared
Author: Richard John BantgesAn Investigation of Infrared Radiative Properties of Cirrus Clouds
Author: Wenbo SunPublisher:
ISBN:
Category : Cloud physics
Languages : en
Pages : 0
Book Description
An Investigation of Infrared Radiative Properties of Cirrus Clouds
Author: Infrared Radiative Properties of Tropical Cirrus Clouds Inferred from Broadband Measurements
Author: Keith Thomas GriffithPublisher:
ISBN:
Category : Cirrus
Languages : en
Pages : 102
Book Description
Cirrus
Author: David K. LynchPublisher: Oxford University Press, USA
ISBN: 0195130723
Category : Cirrus clouds
Languages : en
Pages : 499
Book Description
This text, devoted entirely to cirrus clouds, captures the state of knowledge of cirrus clouds and serves as a practical handbook as well.
Improvements in Modeling the Microphysical and Radiative Properties of Cirrus Clouds Using the Regional Atmospheric Modeling System (RAMS). Final Report
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 7
Book Description
The main work activity during this period was the refinement and GCM parameterization of the treatment of ice cloud radiative properties, developed for this project. The treatment has now been rigorously tested and improved, and can now be used with confidence in radiation transfer schemes. The ice Cloud radiation scheme has also proven useful in satellite remote sensing. The radiation scheme differs from others in the thermal infrared, where it is assumed that photon tunneling does not occur for real ice particles (tunneling can be viewed as a process by which photons outside a particle's area-cross section can still be absorbed). Single particle T-matrix and Mie calculations suggest that a particle's ability to capture energy through tunneling depends on surface morphology, with more tunneling the more circular (or less angular) a surface is. This assumption leads to retrievals of mean particle size which are similar to those observed in tropical cirrus by optical imaging probes, whereas retrieved sizes using Mie theory are about 1/3 those predicted by this scheme. The retrieval method requires channels in the 8--9 [mu]m and 11--12 [mu]m ranges. This assumption about tunneling, as well as treating size distributions in the radiation scheme as bimodal, allows retrievals over a broader range of mean particle size than previous schemes permitted, making such size retrievals applicable to most types of cirrus clouds.
Optical Properties of Cirrus Clouds from Satellite Imagery and Radiative Transfer Calculations
Author: Robert S. StonePublisher:
ISBN:
Category : Cloud physics
Languages : en
Pages : 113
Book Description
In this study, differences between narrowband near infrared (NIR) and infrared (IR) brightness temperatures are related to cloud optical depth providing a theoretical basis for determining cirrus optical properties from combined satellite images.
˜Theœ effects of small ice crystals on the infrared radiative properties of cirrus clouds
Author: The Study of Cirrus Clouds Using Airborne and Satellite Data
Author: Kerry Glynne MeyerPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Cirrus clouds are known to play a key role in the earth's radiation budget, yet are one of the most uncertain components of the earth-atmosphere system. With the development of instruments such as the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) and the Moderate-resolution Infrared Spectroradiometer (MODIS), scientists now have an unprecedented ability to study cirrus clouds. To aid in the understanding of such clouds, a significant study of cirrus radiative properties has been undertaken. This research is composed of three parts: 1) the retrieval of tropical cirrus optical thickness using MODIS level-1b calibrated radiance data, 2) a survey of tropical cirrus cloud cover, including seasonal variations, using MODIS level-3 global daily gridded data, and 3) the simultaneous retrieval of cirrus optical thickness and ice crystal effective diameter using AVIRIS reflectance measurements.