Z-R RELATION FOR GRAUPELS AND AGGREGATES OBSERVED AT SYOWA STATION, ANTARCTICA

The radar reflectivity factor Z and the snowfall rate R were measured by a vertical pointing radar and a high sensitivity snow gauge, respectively. From these data we found a best fit Z-R relation for three snowfall events. The diameter and fall velocity of snow particles were also measured at the r...

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Bibliographic Details
Main Authors: コニシ ヒロユキ, ムラモト ケンイチロウ, シイナ トオル, エンドウ タツオ, キタノ コンイチ, Hiroyuki KONISHI, Ken'ichiro MURAMOTO, Toru SHIINA, Tatsuo ENDOH, Koh'ichi KITANO
Format: Report
Language:English
Published: Osaka Kyoiku University 1992
Subjects:
Syowa Station
Antarc*
Antarctica
Polar meteorology and glaciology
Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology
Online Access:https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3702
http://id.nii.ac.jp/1291/00003702/
https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3702&item_no=1&attribute_id=18&file_no=1
Description
Summary:The radar reflectivity factor Z and the snowfall rate R were measured by a vertical pointing radar and a high sensitivity snow gauge, respectively. From these data we found a best fit Z-R relation for three snowfall events. The diameter and fall velocity of snow particles were also measured at the radar site by using a video camera and an image processor. The types of snow particles described in this paper are aggregates and graupel-like particles, which account for much of snowfall in Antarctica. The range of snowfall rate is similar in all three cases, while the radar reflectivity factor is much different. For the same radar reflectivity factor, the snowfall rate of graupel-like particles was about seven times as large as that for aggregates.

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