ISSW3

3rd International Summer Snowfall Workshop Tuesday 31 August - Friday 3 September 2021, online All times shown are in BST [UK summer time]. Current time in the UK:
Posters will be on display for the full duration of the conference
Each poster presenter has a dedicated presentation session on one of Tue, Wed or Thu (see programme below)
Talks are 12 minutes duration, plus a few minutes for questions, and will be recorded and made available for participants in other time zones to catch up on afterwards

Tuesday Talks 1330 - 1515 (on Zoom)

Presenter	Title
Workshop organisers	Welcome and orientation
Grazioli Jacopo	3-D reconstruction and snowflake mass estimation from Multi-Angle-Snowflake Camera (MASC) data: method, validation and application
James, Rachel	Collisions of supercooled water drops with ice particles; a new SIP mechanism?
Vogl, Teresa	Using artificial neural networks to predict riming from Doppler cloud radar observations
Schrom, Robert	Inferring early aggregation from polarimetric radar measurements and model simulations
Dunnavan, Edwin	Simulating Winter Storm Dual-Polarization Radar Signatures using the Ice-Spheroids Habit Model with Aspect-Ratio EvoLution (ISHMAEL) WRF Microphysics Scheme with Improved Aggregation
Heymsfield, Andrew	Use of Multi-Frequency Doppler Radar Data and Collocated Aircraft Measurements of Condensed Water Content to Better Constrain Estimates of Ice Particle Mass

Tuesday Posters and discussion session 1545 - 1800 (on gather.town)

Posters session: 1545 - 1715, see table below
Optional breakout discussion 1715-1800 New snow particle imagers and image analysis techniques
Informal social get-together (grab a drink, and come "sit" together in gather.town) from 1800 onwards

Presenter Title

McCorquodale, Mark The stable orientation of aggregate ice particles in free-fall

Welss, Jan-Niklas Case study comparisons of polarimetric radar observations against results from the Lagrangian particle model McSnow

Maahn, Maximilian Measuring snowfall properties with the Video In Situ Snowfall Sensor during MOSAiC.

Pettersen, Claire The Precipitation Imaging Package: Assessment of Microphysical and Bulk Characteristics of Snow and Phase Partitioning

Dunnavan, Edwin Radar Retrieval Evaluation and Investigation of Dendritic Growth Layer Polarimetric Signatures in a Winter Storm

Kuo, Kwo-Sen Development of a Virtual Cloud Chamber for Studying the Microphysics and Dynamics of Falling Snow and Mixed-Phase Particles

Mroz, Kamil Bridging the gap between in-situ and remote radar measurements of the microphysical properties of snow

Ori, Davide The PRISTINE project: Polarimetric Radar simulations with realistic Ice and Snow properties and mulTI-frequeNcy consistency Evaluation

Zhu ("Judy") Yao Assimilation of Precipitation-affected Microwave Brightness Temperatures Using a Statistical Forward Operator in Support of Tropical Cyclone Forecasting

Kneifel, Stefan Can we derive a climatology of riming from ground-based cloud radar datasets?

Snider, Jefferson W-band Radar Measurements of Snowfall and the S / Z Relationship for Graupel

Hajipour, Majid Retrieval of shape and orientation of multiple hydrometeor types from observations of scanning hybrid-mode Ka-band cloud radar

Lauer, Melanie Precipitation in the Arctic - compare reanalysis with observational data

Moisseev, Dmitri Multiyear statistics of columnar ice production in stratiform clouds over Hyytiälä, Finland

Presenter	Title
McCorquodale, Mark	The stable orientation of aggregate ice particles in free-fall
Welss, Jan-Niklas	Case study comparisons of polarimetric radar observations against results from the Lagrangian particle model McSnow
Maahn, Maximilian	Measuring snowfall properties with the Video In Situ Snowfall Sensor during MOSAiC.
Pettersen, Claire	The Precipitation Imaging Package: Assessment of Microphysical and Bulk Characteristics of Snow and Phase Partitioning
Dunnavan, Edwin	Radar Retrieval Evaluation and Investigation of Dendritic Growth Layer Polarimetric Signatures in a Winter Storm
Kuo, Kwo-Sen	Development of a Virtual Cloud Chamber for Studying the Microphysics and Dynamics of Falling Snow and Mixed-Phase Particles
Mroz, Kamil	Bridging the gap between in-situ and remote radar measurements of the microphysical properties of snow
Ori, Davide	The PRISTINE project: Polarimetric Radar simulations with realistic Ice and Snow properties and mulTI-frequeNcy consistency Evaluation
Zhu ("Judy") Yao	Assimilation of Precipitation-affected Microwave Brightness Temperatures Using a Statistical Forward Operator in Support of Tropical Cyclone Forecasting
Kneifel, Stefan	Can we derive a climatology of riming from ground-based cloud radar datasets?
Snider, Jefferson	W-band Radar Measurements of Snowfall and the S / Z Relationship for Graupel
Hajipour, Majid	Retrieval of shape and orientation of multiple hydrometeor types from observations of scanning hybrid-mode Ka-band cloud radar
Lauer, Melanie	Precipitation in the Arctic - compare reanalysis with observational data
Moisseev, Dmitri	Multiyear statistics of columnar ice production in stratiform clouds over Hyytiälä, Finland

Wednesday: optional meet for lunch / coffee on gather.town, 1230 - 1315

Wednesday Talks 1330 - 1515 (on Zoom)

Presenter	Title
Battaglia, Alessandro	G-band radars: paving the way towards new insight in ice scattering properties
von Terzi, Leonie	A new view on the dendritic growth zone with spectral polarimetric and multifrequency radar observations
McCusker, Karina	A PICASSO case-study: Can we reproduce accurate observations using in-situ measured PSDs and scattering from particle models in the ARTS database?
Theis, Alexander	Ice microphysics research in the Mainz vertical wind tunnel laboratory; recent results, measurement capabilities, and future plans
Gong, Jie	Radiative Effect on Oriented Ice over Southern Ocean - A New Mechanism to Explain Cloud Ice Microphysics and Precipitation Properties based on CALIPSO, CloudSat, GPM and PAZ-GPS Observations
Kennedy, Aaron	OSCRE: The Open Snowflake Camera for Research and Education

Wednesday Posters and discussion session 1545 - 1800 (on gather.town)

Posters session: 1545 - 1715, see table below
Optional breakout discussion topics 1715 - 1800 Microphysical processes explored in the lab and connections to modelling and observations

Presenter Title

Chae Yu-Jin Quantitative Analysis of Snow Crystals Using a Multi-Angle Snowflake Camera in the Yeongdong Region of Korea

Helms, Charles Comparison of winter precipitation size, aspect ratio, and orientation angle measurement methods of the PIP, MASC, and 2DVD instruments

von Lerber, Annakaisa Fall velocity of melting snow particles examined in ensembles

Tetoni, Eleni Combining radar dual - wavelength and polarimetric observations for the development of an ice microphysics retrieval: a sensitivity analysis

Ori, Davide snowScatt-1.0: A consistent model of microphysical and scattering properties of rimed and unrimed snowflakes based on the self-similar Rayleigh-Gans approximation

King, Fraser A Centimeter Wavelength Snowfall Retrieval Model Using Random Forest Regression

Mendrok, Jana Polarimetric radar based evaluation of COSMO hydrometeor fields considering uncertainties in the model microphysics and the observation operator

Stegmann, Patrick Influence of ice particle temperature on single-scattering properties

Leghart, Erin Linking enhanced spectrum width layers with their production mechanisms in Northeast United States coastal winter storms

Milani, Lisa Brightness temperature signatures due to shallow cumuliform and deep stratiform snowfall regimes

Chen, Ju-Yu Snowfall estimation exploiting polarimetric C-band radars

Ferrone, Alfonso An innovative processing algorithm for MRR-PRO measurements in snowfall

Luke, Ed New insights into ice multiplication using remote-sensing observations of slightly supercooled mixed-phase clouds in the Arctic

Duffy, George Investigating multiple-frequency retrievals of secondary ice production

Tokay, Ali Precipitation Imaging Package (PIP) based Radar Snowfall Estimates during ICE-POP

Presenter	Title
Chae Yu-Jin	Quantitative Analysis of Snow Crystals Using a Multi-Angle Snowflake Camera in the Yeongdong Region of Korea
Helms, Charles	Comparison of winter precipitation size, aspect ratio, and orientation angle measurement methods of the PIP, MASC, and 2DVD instruments
von Lerber, Annakaisa	Fall velocity of melting snow particles examined in ensembles
Tetoni, Eleni	Combining radar dual - wavelength and polarimetric observations for the development of an ice microphysics retrieval: a sensitivity analysis
Ori, Davide	snowScatt-1.0: A consistent model of microphysical and scattering properties of rimed and unrimed snowflakes based on the self-similar Rayleigh-Gans approximation
King, Fraser	A Centimeter Wavelength Snowfall Retrieval Model Using Random Forest Regression
Mendrok, Jana	Polarimetric radar based evaluation of COSMO hydrometeor fields considering uncertainties in the model microphysics and the observation operator
Stegmann, Patrick	Influence of ice particle temperature on single-scattering properties
Leghart, Erin	Linking enhanced spectrum width layers with their production mechanisms in Northeast United States coastal winter storms
Milani, Lisa	Brightness temperature signatures due to shallow cumuliform and deep stratiform snowfall regimes
Chen, Ju-Yu	Snowfall estimation exploiting polarimetric C-band radars
Ferrone, Alfonso	An innovative processing algorithm for MRR-PRO measurements in snowfall
Luke, Ed	New insights into ice multiplication using remote-sensing observations of slightly supercooled mixed-phase clouds in the Arctic
Duffy, George	Investigating multiple-frequency retrievals of secondary ice production
Tokay, Ali	Precipitation Imaging Package (PIP) based Radar Snowfall Estimates during ICE-POP

Thursday: optional meet for lunch / coffee on gather.town, 1230 - 1315

Thursday Talks 1330 - 1515 (on Zoom)

Presenter	Title
Karrer, Markus	Influence of degree of riming on processes in the melting layer
Khan, Majid Hassan	Investigating the wake of freely falling snow aggregate analogues in a quiescent fluid
Teisseire Audrey	Attribution of riming and aggregation to the evolution of hydrometeor shape and orientation in mixed-phase clouds with SLDR-mode scanning cloud radar
Munchak, Stephen J.	Retrieval of Snowfall Microphysical Properties from Dual-Pol, Dual-Frequency Radar Measurements
Ian S Adams	Polarized Observations of Falling Snow from CoSMIR during IMPACTS
Duffy, George	The Shape of (Frozen) Water: Exponential, Log-Normal, Super-Exponential, and Power-Law Particle Size Distributions Observed in Frozen Precipitation.

Thursday Posters and discussion session 1545 - 1800 (on gather.town)

Posters session: 1545 - 1715, see table below
Optional breakout discussion topics 1715 - 1800 What are the next steps for new field measurements, sensors and satellites?

Presenter Title

Gultepe, Ismail Ice crystals and snow measurements from a climatic wind tunnel to atmospheric field studies

Westbrook, Chris An experimental concept to evaluate models for snowflake scattering and microstructure

FONTAINE Emmanuel Model for Hydrometeor Scattering Applied to Forecast and Observation

Fenni, Ines Enhanced MoM/CBFM for Accurate and Efficient Calculation of Scattering by Arbitrarily-Shaped Mixed-Phase Particles

Kaur, Inderpreet Fast radiative transfer considering particle orientation applied to GMI ice water path retrievals

Padullés, Ramon Sounding the vertical structure of horizontally oriented frozen particles using Polarimetric Radio Occultation observations aboard PAZ

Ewald, Florian Statistics of ice cloud properties derived from airborne radar-lidar measurements over the North Atlantic and their comparison with ERA5 reanalysis

Camplani, Andrea CloudSat-Based Analysis of ATMS Snowfall Spectral Signature at High Latitudes

Casella, Daniele The SLALOM snowfall retrieval algorithm for ATMS based on convolutional neural networks

Bukovcic Petar Polarimetric radar snow estimation in two extreme events

Sabetghadam, Samaneh Analysis of snowfall and snow depth trends over the Alborz Mountain range, Iran, using NASA MERRA2 dataset

Billault-Roux, Anne-Claire ICEGENESIS 2021 campaign: ground-based observations of snowfall

Presenter	Title
Gultepe, Ismail	Ice crystals and snow measurements from a climatic wind tunnel to atmospheric field studies
Westbrook, Chris	An experimental concept to evaluate models for snowflake scattering and microstructure
FONTAINE Emmanuel	Model for Hydrometeor Scattering Applied to Forecast and Observation
Fenni, Ines	Enhanced MoM/CBFM for Accurate and Efficient Calculation of Scattering by Arbitrarily-Shaped Mixed-Phase Particles
Kaur, Inderpreet	Fast radiative transfer considering particle orientation applied to GMI ice water path retrievals
Padullés, Ramon	Sounding the vertical structure of horizontally oriented frozen particles using Polarimetric Radio Occultation observations aboard PAZ
Ewald, Florian	Statistics of ice cloud properties derived from airborne radar-lidar measurements over the North Atlantic and their comparison with ERA5 reanalysis
Camplani, Andrea	CloudSat-Based Analysis of ATMS Snowfall Spectral Signature at High Latitudes
Casella, Daniele	The SLALOM snowfall retrieval algorithm for ATMS based on convolutional neural networks
Bukovcic Petar	Polarimetric radar snow estimation in two extreme events
Sabetghadam, Samaneh	Analysis of snowfall and snow depth trends over the Alborz Mountain range, Iran, using NASA MERRA2 dataset
Billault-Roux, Anne-Claire	ICEGENESIS 2021 campaign: ground-based observations of snowfall

Friday: optional meet for lunch / coffee on gather.town, 1230 - 1315

Friday Talks 1330 - 1600 (on Zoom)

Presenter	Title
Chellini, Giovanni	Characterizing ice particle growth in Arctic shallow mixed-phase clouds through dual frequency radar observations
Geer, Alan	Improved simulations of snow scattering at microwave and sub-mm frequencies in RTTOV-SCATT version 13.0
Li Haoran	Radar Doppler spectral analysis of supercooled liquid water and secondary ice production in Kelvin-Helmholtz instability
Gehring, Josué	The influence of orographic gravity waves on snowfall during an atmospheric river event at Davis, Antarctica
Oue, Mariko	Analysis of the Microphysical Properties of Snowfall Using Scanning Polarimetric and Vertically Pointing Multi-Frequency Doppler Radars
Joseph Finlon	Investigation of Microphysical Properties within Regions of Enhanced Dual-Frequency Ratio During the IMPACTS Field Campaign
TBA	Breakout group summaries and wrap-up