Author: William L. SmithPublisher:
ISBN:
Category : Atmospheric radiation
Languages : en
Pages : 130
Book Description
The Broadband Radiative Properties of Cirrus Clouds Deduced from Aircraft Measurements During Fire
Author: William L. SmithPublisher:
ISBN:
Category : Atmospheric radiation
Languages : en
Pages : 130
Book Description
FIRE Science Results 1989
Author: David S. MacDougalPublisher:
ISBN:
Category : Cloud physics
Languages : en
Pages : 566
Book Description
Spectral Radiative Properties of Cirrus Clouds Deduced from Interferometric Measurements
Author: Gordon H. BeckPublisher:
ISBN:
Category : Atmospheric radiation
Languages : en
Pages : 113
Book Description
Scientific and Technical Aerospace Reports
Author: 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.
NASA Conference Publication
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
The 27-28 October 1986 Fire Ifo Cirrus Case Study
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781722803315
Category :
Languages : en
Pages : 62
Book Description
Observations of cirrus and altocumulus clouds during the First International Satellite Cloud Climatology Project Regional Experiment (FIRE) are compared to theoretical models of cloud radiative properties. Three tests are performed. First, LANDSAT radiances are used to compare the relationship between nadir reflectance ot 0.83 micron and beam emittance at 11.5 microns with that predicted for model calculations using spherical and nonspherical phase functions. Good agreement is found between observations and theory when water droplets dominate. Poor agreement is found when ice particles dominate, especially using scattering phase functions for spherical particles. Even when compared to a laboratory measured ice particle phase function, the observations show increased side scattered radiation relative to the theoretical calculations. Second, the anisotropy of conservatively scattered radiation is examined using simultaneous multiple angle views of the cirrus from LANDSAT and ER-2 aircraft radiometers. Observed anisotropy gives good agreement with theoretical calculations using the laboratory measured ice particle phase function and poor agreement with a spherical particle phase function. Third, Landsat radiances at 0.83, 1.65, and 2.21 microns are used to infer particle phase and particle size. For water droplets, good agreement is found with King Air FSSP particle probe measurements in the cloud. For ice particles, the LANDSAT radiance observations predict an effective radius of 60 microns versus aircraft observations of about 200 microns. It is suggested that this descrepancy may be explained by uncertainty in the imaginary index of ice and by inadequate measurements of small ice particles by microphysical probes. Wielicki, Bruce A. and Suttles, J. T. and Heymsfield, Andrew J. and Welch, Ronald M. and Spinhirne, James D. and Wu, Man-Li C. and Starr, David OC. and Parker, Lindsay and Arduini, Robert F. Goddard Space Flight Center; Langley Research Center...
FIRE Cirrus Science Results 1993
Author: David S. McDougalPublisher:
ISBN:
Category : Cirrus clouds
Languages : en
Pages : 232
Book Description
Retrieval of Cirrus Radiative and Spatial Properties Using Independent Satellite Data Analysis Techniques
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Cirrus is one of the most poorly quantified clouds. As a part of International Satellite Cloud Climatology Project (ISCCP), intensive observations of cirrus clouds were taken in the autumn of 1986 over Wisconsin. During this First ISCCP Regional Experiment Cirrus Intensive Field Observation (FIRE Cirrus IFO), coordinated measurements from satellite, aircraft, and ground-based platforms were made of cirrus clouds. This paper deals with the verification of cirrus cloud information, both spatial and radiative, obtained for a 1986 FIRE cloud scene using measurements from two independent sensors onboard the NOAA-9 polar orbiting satellite. In addition to the wide variability in properties common for other types of clouds, cirrus clouds have the added complexity of transmissivity t values that span the entire possible domain 0 = t= 1. Thus, uncertainties exist in thin cirrus cloud amount, altitude, thickness, and optical properties as retrieved from satellite because the measured cirrus signal is affected additionally by an unknown radiation component from below.