Author: Roland J. Boucher
Publisher:
ISBN:
Category : Correlation (Statistics)
Languages : en
Pages : 30
Book Description
The snowy winter of 1978 in Massachusetts allowed five opportunities to test the dependability of a CPS-9, 3.2-cm radar to determine snowfall rate and total snowfall accumulation at up to seven measuring sites within 50 km of the radar. Spaced at intervals of 0.5 -to 1-h, 166 snowfall-rate measurements yielded a correlation coefficient of 0.88. However, in correlating the total storm snowfall, the amount of radar-measured snowfall above a reference snowfall measurement site was made equal to the snowfall actually measured at this location. This calibration technique improved the storm snowfall correlation coefficient to 0.96.
Snowfall Rates Obtained from Radar Reflectivity Within a 50 Km Range
Author: Roland J. Boucher
Publisher:
ISBN:
Category : Correlation (Statistics)
Languages : en
Pages : 30
Book Description
The snowy winter of 1978 in Massachusetts allowed five opportunities to test the dependability of a CPS-9, 3.2-cm radar to determine snowfall rate and total snowfall accumulation at up to seven measuring sites within 50 km of the radar. Spaced at intervals of 0.5 -to 1-h, 166 snowfall-rate measurements yielded a correlation coefficient of 0.88. However, in correlating the total storm snowfall, the amount of radar-measured snowfall above a reference snowfall measurement site was made equal to the snowfall actually measured at this location. This calibration technique improved the storm snowfall correlation coefficient to 0.96.
Publisher:
ISBN:
Category : Correlation (Statistics)
Languages : en
Pages : 30
Book Description
The snowy winter of 1978 in Massachusetts allowed five opportunities to test the dependability of a CPS-9, 3.2-cm radar to determine snowfall rate and total snowfall accumulation at up to seven measuring sites within 50 km of the radar. Spaced at intervals of 0.5 -to 1-h, 166 snowfall-rate measurements yielded a correlation coefficient of 0.88. However, in correlating the total storm snowfall, the amount of radar-measured snowfall above a reference snowfall measurement site was made equal to the snowfall actually measured at this location. This calibration technique improved the storm snowfall correlation coefficient to 0.96.
Snowfall Rate Obtained from Radar Reflectivity Within a 50 Km Range
Author: Roland J. Boucher
Publisher:
ISBN:
Category : Radar meteorology
Languages : en
Pages : 5
Book Description
Publisher:
ISBN:
Category : Radar meteorology
Languages : en
Pages : 5
Book Description
Snowfall Rates Obtained from Radar Reflectivity Within a 50 Km Range
Author: Roland J. Boucher
Publisher:
ISBN:
Category : Radar meteorology
Languages : en
Pages : 25
Book Description
The snowy winter of 1978 in Massachusetts allowed five opportunities to test the dependability of a CPS-9, 3.2-cm radar to determine snowfall rate and total snowfall accumulation at up to seven measuring sites within 50 km of the radar. Spaced at intervals of 0.5 -to 1-h, 166 snowfall-rate measurements yielded a correlation coefficient of 0.88. However, in correlating the total storm snowfall, the amount of radar-measured snowfall above a reference snowfall measurement site was made equal to the snowfall actually measured at this location. This calibration technique improved the storm snowfall correlation coefficient to 0.96. (author).
Publisher:
ISBN:
Category : Radar meteorology
Languages : en
Pages : 25
Book Description
The snowy winter of 1978 in Massachusetts allowed five opportunities to test the dependability of a CPS-9, 3.2-cm radar to determine snowfall rate and total snowfall accumulation at up to seven measuring sites within 50 km of the radar. Spaced at intervals of 0.5 -to 1-h, 166 snowfall-rate measurements yielded a correlation coefficient of 0.88. However, in correlating the total storm snowfall, the amount of radar-measured snowfall above a reference snowfall measurement site was made equal to the snowfall actually measured at this location. This calibration technique improved the storm snowfall correlation coefficient to 0.96. (author).
Measurements of Visibility and Radar Reflectivity During Snowstorms in the AFGL Mesonet
Author: H. Stuart Muench
Publisher:
ISBN:
Category : Mesometeorology
Languages : en
Pages : 40
Book Description
Field experiments were conducted with the AFGL Mesonet and FPS-77 digital radar during snowstorms for evaluation of the use of radar to observe and predict snow. Simultaneous measurements of optical extinction coefficient, radar reflectivity, and snow depth were made, together with determinations of visual range. The measurements verify both the calibration of the visibility instruments and the relationship between visual range and extinction coefficient. A relationship found between extinction coefficient and snowfall rate compares well with relationships found by other investigators. Radar reflectivity is found to be related to extinction coefficient, with the correlation being improved by time averaging and by allowance for velocity of snowflakes from the radar beam to the ground. However, the specification errors are of the order of + or - 42 percent to + or - 65 percent, and with the small spatial and temporal variability of extinction coefficient in snow, the radar is of marginal use where observations are available from the airways network. (Author).
Publisher:
ISBN:
Category : Mesometeorology
Languages : en
Pages : 40
Book Description
Field experiments were conducted with the AFGL Mesonet and FPS-77 digital radar during snowstorms for evaluation of the use of radar to observe and predict snow. Simultaneous measurements of optical extinction coefficient, radar reflectivity, and snow depth were made, together with determinations of visual range. The measurements verify both the calibration of the visibility instruments and the relationship between visual range and extinction coefficient. A relationship found between extinction coefficient and snowfall rate compares well with relationships found by other investigators. Radar reflectivity is found to be related to extinction coefficient, with the correlation being improved by time averaging and by allowance for velocity of snowflakes from the radar beam to the ground. However, the specification errors are of the order of + or - 42 percent to + or - 65 percent, and with the small spatial and temporal variability of extinction coefficient in snow, the radar is of marginal use where observations are available from the airways network. (Author).
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 248
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 248
Book Description
International Aerospace Abstracts
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 992
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 992
Book Description
Environmental Research Papers
Author:
Publisher:
ISBN:
Category : Environmental geology
Languages : en
Pages : 312
Book Description
Publisher:
ISBN:
Category : Environmental geology
Languages : en
Pages : 312
Book Description
Air Force Surveys in Geophysics
Author:
Publisher:
ISBN:
Category : Geophysics
Languages : en
Pages : 80
Book Description
Publisher:
ISBN:
Category : Geophysics
Languages : en
Pages : 80
Book Description
Antarctic Journal of the United States
Author:
Publisher:
ISBN:
Category : Antarctica
Languages : en
Pages : 326
Book Description
Publisher:
ISBN:
Category : Antarctica
Languages : en
Pages : 326
Book Description
Recent Polar and Glaciological Literature
Author:
Publisher:
ISBN:
Category : Glaciology
Languages : en
Pages : 246
Book Description
Publisher:
ISBN:
Category : Glaciology
Languages : en
Pages : 246
Book Description