Author: Robert O. Berthel
Publisher:
ISBN:
Category : Snow
Languages : en
Pages : 60
Book Description
To make realistic estimates of precipitable hydrometeors, meteorological modeling requires valid inter-relationships for the paramerization of mass concentrations, precipitation rates, fall velocities, number densities, etc. In response to these needs, AFGL has initiated a modest effort with objectives of defining such relationships and providing the means to verify model outputs. Measurements documenting the characteristics of naturally falling snow were obtained during the SNOW-ONE-A and SNOW-ONE-B field experiments. These consist of data acquired by three unique instruments: a snow-rate meter (SRM), a fall-velocity indicator (FVI), and a snow-structure recorder (SSR). This report describes the results of our participation in these field programs. Snow rates, particle-fall velocities, and snow-crystal information are presented. Correlations between snow rate and electro-optical transmittance/attenuation and mass-concentration measurements are illustrated. Relationships of fall velocity with snow-crystal size from analyzed data are given along with a method of determining fall velocity through knowledge of snow rate and liquid-water content. The data obtained during these two field experiments indicate that it may be possible to define mathematical relationships between precipitation rate and mass concentration and between fall velocity and snowflake size for broad categories of snow types.
SNOW-ONE-A and B Characterization Measurements and Data Analysis
Author: Robert O. Berthel
Publisher:
ISBN:
Category : Snow
Languages : en
Pages : 60
Book Description
To make realistic estimates of precipitable hydrometeors, meteorological modeling requires valid inter-relationships for the paramerization of mass concentrations, precipitation rates, fall velocities, number densities, etc. In response to these needs, AFGL has initiated a modest effort with objectives of defining such relationships and providing the means to verify model outputs. Measurements documenting the characteristics of naturally falling snow were obtained during the SNOW-ONE-A and SNOW-ONE-B field experiments. These consist of data acquired by three unique instruments: a snow-rate meter (SRM), a fall-velocity indicator (FVI), and a snow-structure recorder (SSR). This report describes the results of our participation in these field programs. Snow rates, particle-fall velocities, and snow-crystal information are presented. Correlations between snow rate and electro-optical transmittance/attenuation and mass-concentration measurements are illustrated. Relationships of fall velocity with snow-crystal size from analyzed data are given along with a method of determining fall velocity through knowledge of snow rate and liquid-water content. The data obtained during these two field experiments indicate that it may be possible to define mathematical relationships between precipitation rate and mass concentration and between fall velocity and snowflake size for broad categories of snow types.
Publisher:
ISBN:
Category : Snow
Languages : en
Pages : 60
Book Description
To make realistic estimates of precipitable hydrometeors, meteorological modeling requires valid inter-relationships for the paramerization of mass concentrations, precipitation rates, fall velocities, number densities, etc. In response to these needs, AFGL has initiated a modest effort with objectives of defining such relationships and providing the means to verify model outputs. Measurements documenting the characteristics of naturally falling snow were obtained during the SNOW-ONE-A and SNOW-ONE-B field experiments. These consist of data acquired by three unique instruments: a snow-rate meter (SRM), a fall-velocity indicator (FVI), and a snow-structure recorder (SSR). This report describes the results of our participation in these field programs. Snow rates, particle-fall velocities, and snow-crystal information are presented. Correlations between snow rate and electro-optical transmittance/attenuation and mass-concentration measurements are illustrated. Relationships of fall velocity with snow-crystal size from analyzed data are given along with a method of determining fall velocity through knowledge of snow rate and liquid-water content. The data obtained during these two field experiments indicate that it may be possible to define mathematical relationships between precipitation rate and mass concentration and between fall velocity and snowflake size for broad categories of snow types.
SNOW-ONE-A and B Characterization Measurements and Data Analysis
Author: Robert O. Berthel
Publisher:
ISBN:
Category : Snow
Languages : en
Pages : 64
Book Description
Publisher:
ISBN:
Category : Snow
Languages : en
Pages : 64
Book Description
Analysis of Snow Characterization Data Acquired at SNOW-ONE-A and B.
Author: Robert O. Berthel
Publisher:
ISBN:
Category :
Languages : en
Pages : 13
Book Description
Snow characterization measurements acquired by the snow rate meter, fall-velocity indicator and snow-structure recorder obtained during the SNOW-ONE-B field experiment are presented. Some further analyses of the SNOW-ONE-A data are also given. Correlations between snow rates, electro-optical and liquid-water-content measurements are shown with the relationships of fall velocities with these parameters are discussed. (Author).
Publisher:
ISBN:
Category :
Languages : en
Pages : 13
Book Description
Snow characterization measurements acquired by the snow rate meter, fall-velocity indicator and snow-structure recorder obtained during the SNOW-ONE-B field experiment are presented. Some further analyses of the SNOW-ONE-A data are also given. Correlations between snow rates, electro-optical and liquid-water-content measurements are shown with the relationships of fall velocities with these parameters are discussed. (Author).
Environmental Research Papers
Author: U.S. Air Force Geophysics Laboratory
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 218
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 218
Book Description
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 994
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 994
Book Description
Implications of the Khrgian-Mazin Distribution Function for Water Clouds and Distribution Consistencies with Aerosols and Rain
Author: V. G. Plank
Publisher:
ISBN:
Category : Aerosols
Languages : en
Pages : 372
Book Description
Publisher:
ISBN:
Category : Aerosols
Languages : en
Pages : 372
Book Description
Accessions List
Author: Environmental Science Information Center. Library and Information Services Division
Publisher:
ISBN:
Category : Ecology
Languages : en
Pages : 16
Book Description
Publisher:
ISBN:
Category : Ecology
Languages : en
Pages : 16
Book Description
Accessions List
Author: United States. National Environmental Satellite, Data, and Information Service. Library and Information Services Division
Publisher:
ISBN:
Category :
Languages : en
Pages : 606
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 606
Book Description
Government Reports Annual Index
Author:
Publisher:
ISBN:
Category : Government reports announcements & index
Languages : en
Pages : 1084
Book Description
Publisher:
ISBN:
Category : Government reports announcements & index
Languages : en
Pages : 1084
Book Description
Monthly Catalog of United States Government Publications
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages :
Book Description