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    Academic Journals

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• Boundary-layer height and surface stability at Hyytiälä, Finland, in ERA5 and observations.

  Authors:Victoria Anne Sinclair, Jenna Ritvanen, Gabin Urbancic, Irina Statnaia, Yurii Batrak, Dmitri Moisseev, et al.From:Atmospheric Measurement Techniques (Vol. 15, Issue 10) Peer-Reviewed

  May 18, 2022420 words Article We investigate the boundary-layer (BL) height at Hyytiälä in southern Finland diagnosed from radiosonde observations, a microwave radiometer (MWR) and ERA5 reanalysis. Four different, pre-existing algorithms are used to...

• Measurement report: Introduction to the HyICE-2018 campaign for measurements of ice-nucleating particles and instrument inter-comparison in the Hyytiälä boreal forest.

  Authors:Zoé Brasseur, Dimitri Castarède, Erik S. Thomson, Michael P. Adams, Saskia Drossaart van Dusseldorp, Paavo Heikkilä, et al.From:Atmospheric Chemistry and Physics (Vol. 22, Issue 8) Peer-Reviewed

  Apr. 19, 2022336 words Brief article The formation of ice particles in Earth's atmosphere strongly influences the dynamics and optical properties of clouds and their impacts on the climate system. Ice formation in clouds is often triggered heterogeneously...

• Using artificial neural networks to predict riming from Doppler cloud radar observations.

  Authors:Teresa Vogl, Maximilian Maahn, Stefan Kneifel, Willi Schimmel, Dmitri Moisseev, and Heike Kalesse-LosFrom:Atmospheric Measurement Techniques (Vol. 15, Issue 2) Peer-Reviewed

  Jan. 24, 2022374 words Brief article Riming, i.e., the accretion and freezing of supercooled liquid water (SLW) on ice particles in mixed-phase clouds, is an important pathway for precipitation formation. Detecting and quantifying riming using ground-based...

• Evaluation of convective boundary layer height estimates using radars operating at different frequency bands.

  Authors:Anna Franck, Dmitri Moisseev, Ville Vakkari, Matti Leskinen, Janne Lampilahti, Veli-Matti Kerminen, et al.From:Atmospheric Measurement Techniques (Vol. 14, Issue 11) Peer-Reviewed

  Nov. 24, 2021383 words Brief article Knowledge of the atmospheric boundary layer state and evolution is important for understanding air pollution and low-level cloud development, among other things. There are a number of instruments and methods that are...

• Two-year statistics of columnar-ice production in stratiform clouds over Hyytiälä, Finland: environmental conditions and the relevance to secondary ice production.

  Authors:Haoran Li, Ottmar Möhler, Tuukka Petäjä, and Dmitri MoisseevFrom:Atmospheric Chemistry and Physics (Vol. 21, Issue 19) Peer-Reviewed

  Oct. 5, 2021425 words Article Formation of ice particles in clouds at temperatures of -10 .sup." C or warmer was documented by using ground-based radar observations. At these temperatures, the number concentration of ice-nucleating particles (INPs)...

• Supercooled liquid water and secondary ice production in Kelvin-Helmholtz instability as revealed by radar Doppler spectra observations.

  Authors:Haoran Li, Alexei Korolev, and Dmitri MoisseevFrom:Atmospheric Chemistry and Physics (Vol. 21, Issue 17) Peer-Reviewed

  Sept. 13, 2021295 words Brief article Mixed-phase clouds are globally omnipresent and play a major role in the Earth's radiation budget and precipitation formation. The existence of liquid droplets in the presence of ice particles is microphysically unstable...

• Evaluation of the dual-polarization weather radar quantitative precipitation estimation using long-term datasets.

  Authors:Tanel Voormansik, Roberto Cremonini, Piia Post, and Dmitri MoisseevFrom:Hydrology and Earth System Sciences (Vol. 25, Issue 3) Peer-Reviewed

  Mar. 12, 2021301 words Brief article Accurate, timely, and reliable precipitation observations are mandatory for hydrological forecast and early warning systems. In the case of convective precipitation, traditional rain gauge networks often miss...

• Towards the connection between snow microphysics and melting layer: insights from multifrequency and dual-polarization radar observations during BAECC.

  Authors:Haoran Li, Jussi Tiira, Annakaisa von Lerber, and Dmitri MoisseevFrom:Atmospheric Chemistry and Physics (Vol. 20, Issue 15) Peer-Reviewed

  Aug. 14, 2020358 words Brief article In stratiform rainfall, the melting layer (ML) is often visible in radar observations as an enhanced reflectivity band, the so-called bright band. Despite the ongoing debate on the exact microphysical processes taking...

• A new method to separate ground clutter and atmospheric reflections in the case of similar Doppler velocities

  Authors:Dmitri Moisseev, Christine Unal, Herman Russchenberg, and Leo LigthartFrom:IEEE Transactions on Geoscience and Remote Sensing (Vol. 40, Issue 2) Peer-Reviewed

  Feb. 200278 words Abstract

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• Pan-Eurasian Experiment (PEEX): towards a holistic understanding of the feedbacks and interactions in the land-atmosphere-ocean-society continuum in the northern Eurasian region

  Authors:Hanna K. Lappalainen, Veli-Matti Kerminen, Theo Kurten, Aleksander Baklanov, Anatoly Shvidenko, Timo Vihma, et al.From:Atmospheric Chemistry and Physics (Vol. 16, Issue 22) Peer-Reviewed

  Nov. 22, 2016220 words Brief article The northern Eurasian regions and Arctic Ocean will very likely undergo substantial changes during the next decades. The Arctic-boreal natural environments play a crucial role in the global climate via albedo change,...

• Unsupervised classification of vertical profiles of dual polarization radar variables

  Authors:Jussi Tiira and Dmitri MoisseevFrom:Atmospheric Measurement Techniques (Vol. 13, Issue 3) Peer-Reviewed

  Mar. 13, 2020219 words Brief article Vertical profiles of polarimetric radar variables can be used to identify fingerprints of snow growth processes. In order to systematically study such manifestations of precipitation processes, we have developed an...

• Airborne laser scan data: a valuable tool with which to infer weather radar partial beam blockage in urban environments

  Authors:Roberto Cremonini, Dmitri Moisseev, and Venkatachalam ChandrasekarFrom:Atmospheric Measurement Techniques (Vol. 9, Issue 10) Peer-Reviewed

  Oct. 17, 2016201 words Brief article High-spatial-resolution weather radar observations are of primary relevance for hydrological applications in urban areas. However, when weather radars are located within metropolitan areas, partial beam blockages and...

• The Helsinki Testbed: a mesoscale measurement, research, and service platform

  Authors:Jarkko T. Koskinen, Jani Poutiainen, David M. Schultz, Sylvain Joffre, Jarmo Koistinen, Elena Saltikoff, et al.From:Bulletin of the American Meteorological Society (Vol. 92, Issue 3) Peer-Reviewed

  Mar. 2011274 words Author abstract, Rep...

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• The seasonal cycle of ice-nucleating particles linked to the abundance of biogenic aerosol in boreal forests.

  Authors:Julia Schneider, Kristina Höhler, Paavo Heikkilä, Jorma Keskinen, Barbara Bertozzi, Pia Bogert, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 5) Peer-Reviewed

  Mar. 16, 2021365 words Brief article Ice-nucleating particles (INPs) trigger the formation of cloud ice crystals in the atmosphere. Therefore, they strongly influence cloud microphysical and optical properties and precipitation and the life cycle of clouds....

• Overview: Integrative and Comprehensive Understanding on Polar Environments (iCUPE) - concept and initial results.

  Authors:Tuukka Petäjä, Ella-Maria Duplissy, Ksenia Tabakova, Julia Schmale, Barbara Altstädter, Gerard Ancellet, et al.From:Atmospheric Chemistry and Physics (Vol. 20, Issue 14) Peer-Reviewed

  July 22, 2020250 words Brief article The role of polar regions is increasing in terms of megatrends such as globalization, new transport routes, demography, and the use of natural resources with consequent effects on regional and transported pollutant...

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

  Authors:Jussi Leinonen, Dmitri Moisseev, Matti Leskinen, and Walter A. PetersenFrom:Journal of Applied Meteorology and Climatology (Vol. 51, Issue 2) Peer-Reviewed

  Feb. 2012 Author abstract

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• Snowfall retrieval at X, Ka and W bands: consistency of backscattering and microphysical properties using BAECC ground-based measurements

  Authors:Marta Tecla Falconi, Annakaisa von Lerber, Davide Ori, Frank Silvio Marzano, and Dmitri MoisseevFrom:Atmospheric Measurement Techniques (Vol. 11, Issue 5) Peer-Reviewed

  May 30, 2018346 words Author abstract, Bri...

  Radar-based snowfall intensity retrieval is investigated at centimeter and millimeter wavelengths using co-located ground-based multi-frequency radar and video-disdrometer observations. Using data from four snowfall...

• The importance of particle size distribution and internal structure for triple-frequency radar retrievals of the morphology of snow

  Authors:Shannon L. Mason, Robin J. Hogan, Christopher D. Westbrook, Stefan Kneifel, Dmitri Moisseev, and Leonie von TerziFrom:Atmospheric Measurement Techniques (Vol. 12, Issue 9) Peer-Reviewed

  Sept. 17, 2019512 words Brief article, Techn...

  The accurate representation of ice particles is essential for both remotely sensed estimates of clouds and precipitation and numerical models of the atmosphere. As it is typical in radar retrievals to assume that all...

• Retrieval of snowflake microphysical properties from multifrequency radar observations

  Authors:Jussi Leinonen, Matthew D. Lebsock, Simone Tanelli, Ousmane O. Sy, Brenda Dolan, Randy J. Chase, et al.From:Atmospheric Measurement Techniques (Vol. 11, Issue 10) Peer-Reviewed

  Oct. 5, 2018305 words Author abstract, Bri...

  We have developed an algorithm that retrieves the size, number concentration and density of falling snow from multifrequency radar observations. This work builds on previous studies that have indicated that...

• Dual-wavelength radar technique development for snow rate estimation: a case study from GCPEx

  Authors:Gwo-Jong Huang, Viswanathan N. Bringi, Andrew J. Newman, Gyuwon Lee, Dmitri Moisseev, and Branislav M. NotarosFrom:Atmospheric Measurement Techniques (Vol. 12, Issue 2) Peer-Reviewed

  Mar. 1, 2019310 words Author abstract, Bri...

  quantitative precipitation estimation (QPE) of snowfall has generally been expressed in power-law form between equivalent radar reflectivity factor (Z.sub.e) and liquid equivalent snow rate (SR). It is known that...