Determination of a Z-R Relationship for Snowfall Using a Radar and High Sensitivity Snow GaugesSource: Journal of Applied Meteorology:;1990:;volume( 029 ):;issue: 002::page 147Author:Fujiyoshi, Yasushi
,
Endoh, Tatsuo
,
Yamada, Tomomi
,
Tsuboki, Kazuhisa
,
Tachibana, Yoshihiro
,
Wakahama, Gorow
DOI: 10.1175/1520-0450(1990)029<0147:DOARFS>2.0.CO;2Publisher: American Meteorological Society
Abstract: A best-fit power-law relationship (Z = 427 R1.09) between 1-minute integrated averages of snowfall rate (R) and radar reflectivity factor (Z) was determined on the basis of observations made by using high sensitivity snow gauges (accuracy 0.03 mm h?1) and a radar (wavelength 3.2 cm, beamwidth 1.1°) of three 1987 Sapporo snowstorms. The relationship Z = 554R0.88, using 30-minute integrated averages of Z and R, produced the best radar estimate of total snowfall. The ratio of the estimated to the observed amount of snowfall decreased with increasing density of new fallen snow ?, the ratio roughly equaling 1, when ? ≈ 0.05 g cm?3.
|
Collections
Show full item record
| contributor author | Fujiyoshi, Yasushi | |
| contributor author | Endoh, Tatsuo | |
| contributor author | Yamada, Tomomi | |
| contributor author | Tsuboki, Kazuhisa | |
| contributor author | Tachibana, Yoshihiro | |
| contributor author | Wakahama, Gorow | |
| date accessioned | 2017-06-09T14:02:59Z | |
| date available | 2017-06-09T14:02:59Z | |
| date copyright | 1990/02/01 | |
| date issued | 1990 | |
| identifier issn | 0894-8763 | |
| identifier other | ams-11534.pdf | |
| identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4146773 | |
| description abstract | A best-fit power-law relationship (Z = 427 R1.09) between 1-minute integrated averages of snowfall rate (R) and radar reflectivity factor (Z) was determined on the basis of observations made by using high sensitivity snow gauges (accuracy 0.03 mm h?1) and a radar (wavelength 3.2 cm, beamwidth 1.1°) of three 1987 Sapporo snowstorms. The relationship Z = 554R0.88, using 30-minute integrated averages of Z and R, produced the best radar estimate of total snowfall. The ratio of the estimated to the observed amount of snowfall decreased with increasing density of new fallen snow ?, the ratio roughly equaling 1, when ? ≈ 0.05 g cm?3. | |
| publisher | American Meteorological Society | |
| title | Determination of a Z-R Relationship for Snowfall Using a Radar and High Sensitivity Snow Gauges | |
| type | Journal Paper | |
| journal volume | 29 | |
| journal issue | 2 | |
| journal title | Journal of Applied Meteorology | |
| identifier doi | 10.1175/1520-0450(1990)029<0147:DOARFS>2.0.CO;2 | |
| journal fristpage | 147 | |
| journal lastpage | 152 | |
| tree | Journal of Applied Meteorology:;1990:;volume( 029 ):;issue: 002 | |
| contenttype | Fulltext |