A climatology of disdrometer measurements of rainfall in finland over five years with implications for global radar observations

Jussi Leinonen*, Dmitri Moisseev, Matti Leskinen, Walter A. Petersen

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

41 Citations (Scopus)

Abstract

To improve the understanding of high-latitude rain microphysics and its implications for the remote sensing of rainfall by ground-based and spaceborne radars, raindrop size measurements have been analyzed that were collected over five years with a Joss-Waldvogel disdrometer located in Järvenpää, Finland. The analysis shows that the regional climate is characterized by light rain and small drop size with narrow size distributions and that the mutual relations of drop size distribution parameters differ from those reported at lower latitudes. Radar parameters computed from the distributions demonstrate that the high latitudes are a challenging target for weather radar observations, particularly those employing polarimetric and dual-frequency techniques. Nevertheless, the findings imply that polarimetric ground radars can produce reliable "ground truth" estimates for space observations and identify dual-frequency radars utilizing a W-band channel as promising tools for observing rainfall in the high-latitude climate.

Original languageEnglish
Pages (from-to)392-404
Number of pages13
JournalJournal of Applied Meteorology and Climatology
Volume51
Issue number2
DOIs
Publication statusPublished - Feb 2012
MoE publication typeA1 Journal article-refereed

Keywords

  • Boreal meteorology
  • Radars/Radar observations
  • Rainfall
  • Satellite observations

Fingerprint Dive into the research topics of 'A climatology of disdrometer measurements of rainfall in finland over five years with implications for global radar observations'. Together they form a unique fingerprint.

Cite this