Science Sessions
Please find below a list of scientific sessions with their descriptions. The proposed conference sessions have mainly an interdisciplinary and cross-cutting character. Each session has a short name for easier assignment and findability. The time tables for session slots (1 time slot = 105 min, default: max. 7 talks with 13 min stage time, see guidelines below) assembled by the session conveners are listed below the descriptions. Most sessions with fewer than 5 presentations were combined in pairs in a time slot to reduce the number of parallel sessions. The list of posters can be found at the bottom of the page.
Note: Session time tables and contributions could change on demand and in justified cases until and throughout the conference week. We will keep this webpage updated. Use the browser search function "ctrl+f" (Windows) or "cmd+f" (MacOS) to rapidly search this website for your contribution. If you have any questions concerning your contribution, do not hesitate to contact us.
Please respect following presentation and poster guidelines so sessions can function smoothly.
Oral presentations are 10 minutes in length plus 3 minutes for questions (13 min stage time each talk). Exceptions from this default are planned and coordinated by the conveners via direct contact with the relevant contributers. Please bring your presentation on a USB stick and in PPTX or PDF format. Keynote is not supported, please convert your presentation into the above-mentioned formats yourself.
Posters must not exceed the size 84 cm width and 119 cm height (~DIN A0 portrait, no landscape!). All poster presenters need to bring their poster printed. We don't have a printing service on-site. Posters will be up from Monday afternoon until Friday. Posters will be put up on site and removed only by the conference team. Please bring your poster Monday morning to the front desk.
FLEX time during the conference are time slots on Tuesday, Wednesday and Thursday afternoon for individual open ad-hoc meetings for all sizes of groups. If you are part of a group of people which like to discuss about a specific topic, the FLEX time concept allows this during the conference and allows other participants to join. You can ‘register’ such a meeting by filling the fields in the online spreadsheet. The link was circulated via mail to all participants.
We reserved in total 6 rooms of different capacities (10 to 295 seats) at 3 different buildings allowing meetings of each group size. Each room is equipped with video conference hardware to include online participants.
Registering a FLEX time meeting is possible any time before the desired time slot online in advance and during the conference by adding the requested information in the online spreadsheet.
The conference front desk will assign the rooms and fix the slots. In general, keep the limited number of rooms in mind → first come, first serve! We can not realise more than 6 meetings at the same time. In case of overbooking, we will mark overbook-meetings in red in the spreadsheet and the convener needs to come to the front desk as soon as possible and we will try to find a solution in consultation with you.
The spreadsheet will be also visible on screens during the week on site for all participants so that each participant can check it for planned meetings and decide to join a group. If you have difficulties to edit the spreadsheet online on site, please come to the front desk for assistance.
Each meeting needs a convener / speaker who needs to give a brief summary (less than 5 min) on Friday in the plenary about the meeting. Here you can summarise the progress of the group or address open questions to all attendees.
LEADS: Leads - the exchange hubs in the Arctic eco- and climate system
Convener(s): Luisa von Albedyll, Matias Uusinoka, David Clemens-Sewall, Pablo Saavedra Garfias
In the polar winter, fractures and leads in sea ice are the hotspots of exchange between the ocean and atmosphere, facilitating interactions between these otherwise well-separated components. Leads play a crucial role in altering atmospheric, ecological, and oceanic processes. Turbulent heat transfer, new ice formation with enhanced brine rejection, snow loss, ocean-atmosphere gas exchange relevant in Arctic cloud formation, frost flowers, lateral melting, and many more processes can be enhanced in leads. This session aims to bring together experts from different disciplines working on leads to explore interconnections, to identify common needs, and to advance our understanding of lead processes. We invite diverse contributions from studies focusing on single or multiple processes in leads, lead detection, and modeling.
Chair(s): Luisa von Albedyll
Room: Will be published after the registration due date (see Home tab)
| # | first name | last name | ID | title of talk |
|---|---|---|---|---|
| 1 | Micha | Gryschka | 49 | Modelling the impact of sea-ice leads on the atmospheric boundary layer from large eddy to climate model scales |
| 2 | Gijs | de Boer | 55 | A (limited) perspective on small leads from the DataHawk UAS duri ng MOSAiC |
| 3 | Matias | Uusinoka | 158 | Shifting between conditions: A local-scale analysis on Arctic sea -ice deformation |
| 4 | Polona | Itkin | 124 | Sea ice deformation during MOSAiC drift expedition: A year in motion |
| 5 | Xi | Zhao | 64 | Labeling sea ice lead and tracking its development from series of SAR images |
| 6 | Luisa | von Albedyll | 78 | An Arctic Puzzle from Space: Leads during MOSAiC |
| 7 | open slot |
ARCTIC AMPLIFICATION: Arctic Amplification and other Climate Change Feedbacks: Contributing processes and feedbacks studied in the frame of MOSAiC + SEASONAL CYCLE: Arctic seasonal cycle on the MOSAiC floe
Convener(s): Sandro Dahlke, Elisa Akansu, Olivia Linke, Andreas Walbröl
ARCTIC AMPLIFICATION: Arctic warming occurs faster than in any other region on the globe. This Arctic Amplification (AA) is driven by Arctic-specific local and remote processes and feedback mechanisms. AA has strong implications for the weather and climate system within the Arctic, but also beyond the Arctic boundary due to linkages to lower latitudes. The associated feedback mechanisms are related to the heterogeneity and high albedo of the surface, stable atmospheric stratification, aerosol properties, and persisting low-level (mixed-phase) clouds. Furthermore, momentum, heat, and moisture fluxes at the atmosphere-ocean-sea ice interface, and remote influences due to changes in atmospheric and oceanic energy transports into and out of the Arctic play a role. In addition, biogeochemical mechanisms impact the atmosphere (e.g., via the formation of cloud condensation nuclei), as well as algae and phytoplankton production in the oceanic surface layer. This session welcomes contributions to feedback mechanisms and processes of AA as explored during MOSAiC.
SEASONAL CYCLE: General session welcoming contributions describing the seasonal transitions of the MOSAiC floe and the context of seasonal cycle of the Arctic.
Chair(s): TBD
Room: Will be published after the registration due date (see Home tab)
| # | first name | last name | ID | title of talk |
|---|---|---|---|---|
| 1 | Heilong | Liu | 141 | The Upper Ocean Changes along with the State Transition of the Beaufort Gyre |
| 2 | Clara J.M. | Hoppe | 94 | What they do in the shadows - phytoplankton biomass dynamics over the high Arctic annual cycle |
| 3 | Mark | Oggier | 119 | Evolution of sea ice stratigraphy from first-year to second-year ice during MOSAiC |
| 4 | Maddie | Smith | 113 | Formation and fate of fresh meltwater at the MOSAiC floe |
| 5 | Anne | Sledd | 123 | Surface energy budget variability from MOSAiC: observations and model evaluation |
| 6 | Andreas | Walbröl | 128 | Water vapour in the central Arctic: How well do satellite product s, reanalyses and reference observations from the MOSAiC expedition agree? |
| 7 | Ola | Persson | 168 | The Autumn Freezeup at MOSAiC Leg 5 |
INTERDISCIPLINARY OCEAN: The interdisciplinary Arctic Ocean + SPECIES: Who's where, when?
Convener(s): Kirstin Schulz, Emelia Chamberlain, Zoe Koenig
INTERDISCIPLINARY OCEAN: The Arctic Ocean is a highly interconnected system. Different water masses with distinct regions of origin and temperature and salinity signatures also come with their individual biogeochemical tracer concentrations, carbonate system properties, and species compositions. The variability in oceanographic conditions along the drift also affects the local transport of, e.g., heat, nutrients, tracers, and organisms from microbes to fish. In this session, we invite contributions from all disciplines, especially from physical and biogeochemical oceanography and ecology, that investigate the variability of their favorite tracer, property, organisms, or process along the MOSAiC drift. By learning about the individual behavior of parameters from different disciplines, we hope to shed some light on how exactly the Arctic (Ocean) system is connected, and support future multidisciplinary research.
SPECIES: The year-long MOSAiC expedition provided an unique opportunity to resolve questions regarding baseline biological species composition and distributions across the ice-ocean continuum in the central Arctic Ocean. However, due to its lagrangian drift path, disentangling the seasonal vs. spatial impacts on observed changes in biodiversity has provided an exciting challenge to data analysis, and such environmental influences may not be consistent across all ecological boundaries or organism size classes. This session will therefore be dedicated to discussing the "who's who?", and more importantly, "who's where, when?" of observed ice and water column community structure during the MOSAiC Drift. Submissions may reflect observations of species or functional community composition across all trophic levels (i.e. from bacteria to fish), as well as modelling studies regarding expected changes to community composition in a changing Arctic.
Chair(s): Kirstin Schulz
Room: Will be published after the registration due date (see Home tab)
| # | first name | last name | ID | title of talk |
|---|---|---|---|---|
| 1 | Zoe | Koenig | 83 | The Eurasian Arctic Ocean along the MOSAiC drift (2019-2020): An interdisciplinary perspective on properties and processes |
| 2 | Ovidiu | Popa | 84 | Exploring the Mobilome in the Central Arctic Ocean: A Metagenomic Study through the photic zone |
| 3 | Emelia | Chamberlain | 95 | Microbial predictors of net heterotrophic conditions |
| 4 | Benjamin | Rabe | 87 | CTD and tracer-based insights into the advection pathways and modification of Atlantic Water during MOSAiC |
| 5 | Ellen | Oldenburg | 85 | Seasonal Dynamics and Water-Ice Interactions Shape Eukaryotic Communities in the Central Arctic Ocean |
| 6 | Alexandra | Kraberg | 149 | Microscopy-based phytoplankton community analyses during the MOSAiC campaign |
| 7 | Hauke | Flores | 172 | Sea-ice decline could keep zooplankton deeper for longer |
SUNLIGHT: Sunlight in the coupled atmosphere-ice-snow-eco-ocean system
Convener(s): Maddie Smith, Bonnie Light, Clara Hoppe
Strong seasonality in the solar radiation budget is a key characteristic of the Arctic Ocean. Incoming shortwave energy is differentially absorbed and scattered by snow, sea ice, and the ocean. The magnitude of absorption and scattering is modulated by physical properties that evolve throughout the seasonal transitions, as well as inclusions such as sediment and organic material. During the MOSAiC expedition, measurements of albedo and transmission covered many scales of space and time, and were supplemented by novel measurements of additional optical properties within and beneath the ice cover. From a physical, ice mass balance perspective, the distribution of solar heating impacted melt and re-freeze rates. From an ecological perspective, changes in incoming irradiance and its transmission through the ice are controlling factors for processes such as primary production and vertical migration, strongly affecting ecosystem functioning and biogeochemical cycling. We invite contributions from all disciplines focusing on the interactions between sunlight and other processes in the coupled atmosphere-ice-snow-eco-ocean system.
Chair(s): Maddie Smith
Room: Will be published after the registration due date (see Home tab)
| # | first name | last name | ID | title of talk |
|---|---|---|---|---|
| 1 | Ran | Tao | 114 | Spatial variability of light partitioning and absorptivity of the Arctic sea ice |
| 2 | Don | Perovich | 91 | Solar heat partitioning at the MOSAiC Central Observatory |
| 3 | Henna‑Reetta | Hannula | 142 | Variability of Arctic sea-ice albedo during the fall freeze-up season |
| 4 | Ran | Tao | 116 | Seasonal evolution of optical properties and scales of spatial variability of Arctic sea ice |
| 5 | Bonnie | Light | 135 | Sea ice optical properties inferred from laboratory core measurements |
| 6 | panel discussion | |||
| 7 | panel discussion |
PROCESSES & SCALES: Using the MOSAiC Central Observatory to advance process-scale understanding and modeling
Convener(s): David Clemens‑Sewall, Kirstin Schulz, Emelia Chamberlain, Jan Chylik
The detailed observations from the MOSAiC Central Observatory provide a foundation for improving process-scale understanding of the atmosphere, ice, ocean, ecological, biogeochemical, and coupled climate system. This session provides an opportunity to present advances and challenges of using MOSAiC observations to understand the mechanistic processes within, the interplay of these subsystems on a regional scale, and improve their representation in models. We will also discuss shared challenges in the interpretation of results and how we might address them as a community. For example, the different temporal scales of individual processes and interactions, the discrimination between superimposed seasonal and regional variability intrinsic to a drift campaign, or compiling integrated comparable datasets from variable methodologies and observational scales. We welcome abstracts sharing findings of disciplinary and interdisciplinary process studies, the compilation of benchmark datasets useful for future analysis, and advances in modeling efforts - including single column models, large eddy simulations, discrete element models, improved physical or biogeochemical process parameterizations, box models, energy or trophic flux models, machine learning algorithms, etc.
Chair(s): David Clemens‑Sewall
Room: Will be published after the registration due date (see Home tab)
| # | first name | last name | ID | title of talk |
|---|---|---|---|---|
| 1 | Benjamin | Rabe | 96 | The MOSAiC Distributed Network: observing the coupled Arctic system with multidisciplinary, coordinated, platforms |
| 2 | Evgenii | Salganik | 144 | Representativeness of ice mass balance buoy measurements during t he MOSAiC expedition |
| 3 | Daniel | Watkins | 132 | Sea ice dynamical response to cyclones at moderate and large scal es |
| 4 | Kirstin | Schulz | 59 | How tides increase Arctic sea ice area in summer. Wait, what? |
| 5 | Lara | Remmer | 148 | How RV Polarstern affects nearby observations |
| 6 | Ananth | Ranjithkumar | 47 | Direct observation of Arctic Sea salt aerosol production from blo wing snow and modelling over a changing sea ice environment |
| 7 | Vera | Schemann | 147 | Linking hectometer simulations and remote sensing observations to improve process understanding of Arctic mixed-phase clouds |
TRACERS: Tracers of MOSAiC
Convener(s): Céline Heuzé, Dorotea Bauch, Adam Ulfsbo, Sinhue Torres-Valdes, Benjamin Heutte
Many teams collected their favourite organic, inorganic, or even passive tracers in the snow, sea ice, atmosphere or ocean during MOSAiC, with the aim to expand the MOSAiC data in time and space. Beyond their original objectives, these tracers can be combined to produce cross-cutting studies of the atmosphere - ocean vertical geochemical exchanges via the ice, of the large scale advection of clean or polluted air and water masses, or of the food web. This informal session aims to inventory which tracers have been collected by which team, and to initiate discussions to identify sub-groups interested in such cross-cutting studies.
Chair(s): TBD
Room: Will be published after the registration due date (see Home tab)
| # | first name | last name | ID | title of talk |
|---|---|---|---|---|
| 1 | Georgi | Laukert | 70 | River water distribution and influence during MOSAiC based on iso topic provenance tracers |
| 2 | first talk continues | |||
| 3 | Marta | Santos‑Garcia | 145 | Shelf-derived nitrate deficit in the Transpolar Drift quantified through nitrate isotope investigations and a one-dimensional model |
| 4 | Céline | Heuzé | 46 | A year of transient tracers chlorofluorocarbon 12 and sulfur hexa fluoride, noble gases helium and neon, and tritium in the Arctic Ocean from the MOSAiC expedition (2019-2020) |
| 5 | Amy | Macfarlane | 63 | Ocean sourced snow: An unaccounted process on Arctic sea ice |
| 6 | Benjamin | Heutte | 80 | Sources and composition of organic aerosols in the central Arctic Ocean during the MOSAiC expedition |
| 7 | Silvia | Bucci | 160 | A Lagrangian view of MOSAIC observations: One year of atmospheric transport in the Arctic, seen through trajectories |
A-I-O INTERACTIONS: Observations and Modeling of Air-Ice-Ocean Interactions, including Feedbacks
Convener(s): Ola Persson, Daniel Watkins
One of the main goals of the MOSAiC project has been to collect observations across the key components of the Arctic System to advance understanding, modeling, and prediction of their coupling and feedbacks under a warming climate and declining sea ice cover. Various challenges exist for using these measurements, including devising methods for deducing interdisciplinary linkages or coupling between the disciplinary observations, and upscaling of collected data on individual processes and their impacts to climate-model 'grid-cells' and the basin-scale. Hence, extracting evidence of coupling and feedback processes from the observations is critical, as is the endeavor to realistically represent these processes, interactions, and feedbacks in Earth system models across a range of spatiotemporal scales. In this session, contributions are invited that focus on various disciplinary processes, and their coupling across the surface boundary layer interfaces, including across the bio-physical domain. Contributions are welcome from MOSAiC observational studies and from model analyses on various time and spatial scales. Studies on feedback processes involving the atmosphere, ice, ocean and bio-geochemical domains are of particular interest. Finally, the organizers invite presentations that will encourage active discussion of interdisciplinary processes and their potential role in coupling and feedbacks.
Chair(s): TBD
Room: Will be published after the registration due date (see Home tab)
| # | first name | last name | ID | title of talk |
|---|---|---|---|---|
| 1 | Lu | Zhou | 52 | poster lightning talk 3 min: Recent Decades Arctic Atlantification: A Detailed Analysis of Sea Ice Balance Budget Changes |
| 2 | Marcel | Nicolaus | 137 | poster lightning talk 3 min: The Tara Polar Station drift program |
| 3 | Matthew | Shupe | 65 | poster lightning talk 3 min: The two Arctic atmospheric states and their impacts on the surface energy budget at MOSAiC |
| 4 | Patrick | Taylor | 110 | The effects of preconditioning on the summer sea ice thickness evolution during MOSAiC |
| 5 | Melinda | Webster | 146 | A-I-O Sources of Spatially Variable Sea-Ice Melt in the MOSAiC Central Observatory |
| 6 | Hélène | Angot | 162 | Presented by: Hans-Werner Jacobi Deposition pulses of black carbon and their impact on snow |
| 7 | Ruzica | Dadic | 161 | The complex evolution of the snow/surface layer during freeze-up phase of the MOSAiC expedition |
| discussion |
MISSING ELEMENTS: Missing elements in understanding Arctic sea ice + RIDGES: Role of sea-ice ridges in the Arctic system + BRIDGING THE POLES: Bridging the Poles
Convener(s): Martin Schneebeli, Mats Granskog
MISSING ELEMENTS: Many new insights from all the different science teams based on the MOSAiC expedition have been published in the past three years. Which parts are we still not knowing or understanding? Can we accommodate the results sufficiently in the models, or are key elements missing? Based on this session, more concrete steps could be made to measure, model and forecast the future of the Arctic Ocean.
RIDGES: Sea-ice ridges (and deformed ice in general) cover a large portion of the sea ice area, nevertheless they are not frequently studied in detail. During MOSAiC a wealth of observations were carried out on several temporal and spatial scales, and these can directly or indirectly be used to establish the role of ridges in sea-ice related processes. We like to solicit presentations that attempt to better understand the role of ridges in sea-ice processes (physical, chemical and biological) and of observational methods that can be used to map or characterize sea-ice ridges (in space and/or over time). While better understanding how ridges are represented in models would pave the way for improved parameterizations. We would welcome any studies that improve our understanding of the role of ridges in the Arctic sea-ice system.
BRIDGING THE POLES: Arctic / Antarctic links and any work being conducted comparing the two poles.
Chair(s): TBD
Room: Will be published after the registration due date (see Home tab)
| # | first name | last name | ID | title of talk |
|---|---|---|---|---|
| 1 | Sönke | Maus | 105 | Synchrotron-based X-ray micro-tomography of MOSAiC sea ice cores |
| 2 | David | Clemens‑Sewall | 140 | But why is the snow gone? Observations and modeling of snow redis tribution at MOSAiC |
| 3 | Evgenii | Salganik | 143 | Effects of sea-ice density evolution on sea-ice thickness retriev al from its freeboard during the melt season |
| 4 | Dominik | Hanke | 60 | Improving the quality of surface roughness estimates by enhancing sparse laser scanner data with virtual laser echoes |
| 5 | Mats | Granskog | 56 | New insights on the role of Arctic sea-ice ridges from the MOSAiC expedition |
| 6 | Oliver | Müller | 101 | Arctic Sea ice ridges: Complex havens of biodiversity with astoni shing community changes from ridge formation to melting and summer consolidation |
| 7 | Ruzica | Dadic | 163 | Comparison of snow cover properties during the MOSAiC spring-to-summer transition and Antarctic sea ice with comparable boundary conditions |
AEROSOL & CLOUDS: Aerosols and clouds: optical and microphysical properties, CCN and INP characteristics and sources, aerosol-cloud interaction
Convener(s): Ronny Engelmann, Julia Schmale, Albert Ansmann, Jessie Creamean, Markus Frey
The Arctic is clearly a CCN and INP limited regime for cloud formation. Hence, next to meteorological parameters, aerosol type and concentration are the main controlling factors for cloud microphysics. The topics that should be addressed could range from measurements and direct process observations during MOSAiC (or beyond) to designated representations of Arctic aerosol-cloud interaction in model studies.
Please note: This session has two session slots
Chair(s): TBD
Room: Will be published after the registration due date (see Home tab)
| # | first name | last name | ID | title of talk |
|---|---|---|---|---|
| 1 | Benjamin | Heutte | 81 | High-resolution and size-resolved aerosol chemical composition in the central Arctic: yearly seasonality with a focus on the dark autumn period |
| 2 | Kerri | Pratt | 126 | Unravelling the Year-round Sources and Composition of Central Arc tic Sea Salt and Marine Gel Aerosols through Single-Particle Measurements |
| 3 | Julia | Schmale | 77 | Shedding light into the dark: Processes and potential effects of aerosols in the central Arctic between fall and spring |
| 4 | Manuela | van Pinxteren | 131 | Marine polysaccharides and their importance in the Arctic and in other marine regions |
| 5 | Olga | Popovicheva | 156 | Black carbon across the Central Arctic: Connecting Bely Island and MOSAiC observations |
| 6 | Matthew | Boyer | 82 | The mechanism of new particle formation and growth in the central Arctic during MOSAiC |
| 7 | Christian | Pilz | 99 | Wildfire smoke transport at low altitudes to the central Arctic in summer |
Chair(s): TBD
Room: Will be published after the registration due date (see Home tab)
| # | first name | last name | ID | title of talk |
|---|---|---|---|---|
| 1 | Xianda | Gong | 86 | Contribution of local blowing snow and long-range transported pollution to aerosols in the central Arctic during winter and spring |
| 2 | Markus | Frey | 108 | Do clouds care about aerosol from sea ice sources (blowing snow, open leads) during Arctic winter/ spring? - the evidence from MOSAiC 2019-20 |
| 3 | Gabriella | Wallentin | 98 | Pan-Arctic Simulations of Multilayer Clouds |
| 4 | Cristofer | Jiménez | 74 | Presented by: Albert Ansmann The liquid phase (water droplets) of Arctic mixed-phase clouds: Microphysical properties observed with dual FOV lidar during MOSAiC |
| 5 | Mavis | Camille | 92 | Investigating Arctic melt water for production of biological ice nucleating particles |
| 6 | 93 | CANCELLED | ||
| 7 | Albert | Ansmann | 73 | Wildfire smoke in the Arctic UTLS: Impact on cirrus formation dur ing MOSAiC 2019-2020 |
ABL: The Atmospheric Boundary Layer at MOSAiC: Structure and Processes
Convener(s): Ola Persson, TBD
The Arctic atmospheric boundary layer (ABL) is the interface between the free troposphere and the sea-ice. As such, its structures and processes are key for the transport and mixing of heat, momentum, moisture, aerosols, and gases in both directions between the sea ice and the free troposphere, and characterize the unique Arctic atmospheric near-surface environment. This session on the atmospheric boundary layer invites presentations describing the ABL structure observed during MOSAiC, processes that modulate this structure (e.g., cloud interactions, synoptic conditions), key mixing processes, and ABL interactions with the free troposphere and different surface types. Presentations showing the effects of ABL processes on other observed features, such as the evolution of chemical or gas constituents, surface energy budget, etc., are welcome.
Chair(s): TBD
Room: Will be published after the registration due date (see Home tab)
| # | first name | last name | ID | title of talk |
|---|---|---|---|---|
| 1 | Ola | Persson | 167 | poster lightning talk 3 min: Synoptic/Mesoscale Forcing of Key Atmospheric Boundary-Layer Features at MOSAiC |
| 2 | Sandro | Dahlke | 130 | poster lightning talk 3 min: Different states of the winter time boundary layer: Disentangling the role of combined radiation-, cloud-, and wind regimes in reanalysis and observations |
| 3 | Benjamin | Kirbus | 51 | poster lightning talk 3 min: Marine cold air outbreak case study during MOSAiC-ACA: Air mass transformations forced by surface changes and advection in higher altitudes |
| 4 | Michael | Lonardi | 102 | In situ profiles of Thermal-Infrared radiation in the Arctic Atmospheric Boundary Layer |
| 5 | Changwei | Liu | 42 | The characteristics of atmospheric boundary layer height over the Arctic Ocean during MOSAiC |
| 6 | Guenther | Heinemann | 43 | Dynamics of Low-level Jet Events during MOSAiC |
| 7 | Elisa | Akansu | 100 | Characterization of the Arctic Atmospheric Boundary Layer During Polar Night and Spring based on in situ Turbulence Observations |
MODELS: Exploiting the full potential of MOSAiC's observations to improve regional Arctic and global weather and climate models
Convener(s): Laurens Ganzeveld, Gina Jozef, Vera Schemann, Gunilla Svensson
Given MOSAiC's intended legacy, to provide improved Arctic NWP and climate simulations as well as projections of future changes, it might be timely, now that most of MOSAiC’s measurement data have been processed, to optimize the strategy to apply the process information to improve numerical weather prediction (NWP) and climate/Earth system models. In the Boulder OSC we have seen examples of ongoing activities with different tools, e.g., highly-resolving LES models on boundary layer dynamics, 1-D model studies on atmospheric composition and application of coupled 3-D model approaches focusing on process representation of sea ice dynamics. Ultimately, a main challenge appears to determine the priorities and degree of detail regarding the representation of these processes in regional and global NWP and climate models. We invite contributions that address the application of MOSAiC's measurements as well as highly-resolving and process models for development and application of parameterization in Arctic NWP and climate studies.
Chair(s): Laurens Ganzeveld
Room: Will be published after the registration due date (see Home tab)
| # | first name | last name | ID | title of talk |
|---|---|---|---|---|
| 1 | Frank | Kauker | 104 | Filling spatio-temporal gaps in altimetry satellite products of A rctic sea ice thickness by numerical sea ice modeling |
| 2 | Michail | Karalis | 152 | Lagrangian simulations of warm air intrusions using the AOSCM |
| 3 | Jan | Landwehrs | 106 | Arctic intrusion events in the ICON model - MOSAiC case studies and climate projections |
| 4 | Niklas | Schnierstein | 154 | Analysis of mixed-phase cloud processes through high-resolution m odeling during the MOSAiC drift |
| 5 | Luise | Schulte | 133 | Representation of cloud liquid water in the ECMWF Integrated Fore casting System during MOSAiC |
| 6 | Gunilla | Svensson | 150 | Some aspects of the forecast quality of ECMWF Integrated Forecast System (IFS) |
| 7 | Roel | Neggers | 155 | Standardized LES based on MOSAiC data: Current status and future plans |
FROM SPACE: From space to the floe (and back)
Convener(s): Luisa von Albedyll, Amy Macfarlane, Gunnar Spreen
The objective of this session is to (a) showcase the synergies of satellite remote sensing, in-situ and airborne observations acquired during MOSAiC and (b) provide a home for methodological remote sensing studies. We welcome all studies that use remote sensing data along the MOSAiC drift track. We encourage submissions that analyze remote sensing products to provide a larger spatial and temporal context to the expedition. Additionally, we invite studies that use satellite products to force models and those that evaluate and improve remote sensing products, in particular large-scale and long-term datasets such as climate data records. We welcome submissions that use remote sensing data in conjunction with other disciplines. For example, for upscaling observations on the floe and the distributed network to a regional and hemispheric scale. Calibration and validation activities, innovative algorithm development for existing and upcoming satellite missions, for example, CIMR, CRISTAL, ROSE-L, NISAR, or MetOp-SG are also invited to this session.
Chair(s): TBD
Room: Will be published after the registration due date (see Home tab)
| # | first name | last name | ID | title of talk |
|---|---|---|---|---|
| 1 | Carola | Barrientos‑Velasco | 127 | Analysis of uncertainty propagation of cloud radiative properties based on shipborne and satellite remote sensing observations during MOSAiC |
| 2 | Falco | Monsees | 169 | Relations between cyclones and ozone changes in the Arctic using data from satellite instruments and the MOSAiC ship campaign |
| 3 | Alexandra | Narizhnaya | 151 | Evaluation of surface radiative budget terms and cloud radiative forcing over Arctic sea ice from CERES satellite data using in situ observations from the "North Pole" drifting stations and MOSAiC |
| 4 | Rasmus | Tonboe | 72 | Estimation of sea ice brine pocket distribution for scattering an d emission model applications |
| 5 | Marcus | Huntemann | 120 | Comparison of sea ice emission at L-band at different scales |
| 6 | Nils | Hutter | 171 | Machine learning based estimates of ice and snow thicknesses derived from airborne surface topography and temperature measurements |
| 7 | Luisa | von Albedyll | 66 | Thin Ice, Large Impact: Upscaling thermodynamic and dynamic sea i ce thickness change during MOSAiC |
CARBON FLUX: Quantifying carbon flux in the Arctic ice-ocean-atmosphere system; from biological productivity to air-sea gas exchange
This session is a dedicated follow-up to "Session 19: Carbon Transformations and Fluxes, and their Dependency on Biodiversity" from the 2nd MOSAiC Science Conference. Building on these previous discussions we would like to welcome submissions from both observationalists and modellers working in carbon (or other element of choice) currency to develop quantitative assessments of trophic fluxes through the Arctic Ecosystem.
Note: There is only 1 poster for this session
BGC OF ICE: Sea-ice heterogeneity from a biogeochemical perspective
Convener(s): Georgi Laukert, Jacqueline Stefels
Sea ice is, by definition, a heterogeneous matrix, both in terms of physical and biogeochemical properties. All these properties are impacted by the composition of the water the ice formed from, and by processes linked to seasonality. The parameter set measured during MOSAiC throughout the year at the main coring site and during several legs also at other locations provides an excellent opportunity to decipher the causes of changes in the investigated biogeochemical parameters. Questions to be answered include: What causes the vertical distribution of biogeochemical parameters? To what extent do physical processes (freeze-up, brine formation, ice melt) impact the vertical distribution of these parameters? Can a (tracer) signature be identified that is associated with the source area of the sea ice or the water from which it formed, and if so, is this reflected in the biogeochemical parameters? Which parameters are affected by biological processes and which are not? Was the MOSAiC ice floe representative of the central Arctic Ocean?
Chair(s): Georgi Laukert
Room: Will be published after the registration due date (see Home tab)
| # | first name | last name | ID | title of talk |
|---|---|---|---|---|
| 1 | Dorothea | Bauch | 45 | Spatial and temporal variability of stable isotopes (D and 18O) of sea ice cores from the MOSAiC ice camp during winter 2019/2020 |
| 2 | Georgi | Laukert | 71 | Constraining surface ocean influence on chemical variability in f irst-year ice during MOSAiC based on radiogenic neodymium isotopes |
| 3 | Jacqueline | Stefels | 170 | Looking for patterns of dimethylated sulfur compounds and communi ty composition in sea ice from the MOSAiC floe |
| 4 | discussion | |||
| 5 | discussion | |||
| 6 | discussion | |||
| 7 | discussion |
List of posters
| # | session | first name | last name | ID | title |
|---|---|---|---|---|---|
| 1 | TRACERS | Dorotea | Bauch | 54 | Winter sea-ice influence in relation to river water distribution in the Transpolar Drift during MOSAiC |
| 2 | TRACERS | Camilla | Brunello | 159 | Moisture exchange processes during warm air intrusions in the Arc tic under contrasting sea ice conditions |
| 3 | INTERDISCIPLINARY OCEAN | Hauke | Flores | 111 | Spatial and temporal variability of zooplankton distribution inferred from hydroacoustic measurements during MOSAiC |
| 4 | INTERDISCIPLINARY OCEAN | Alejandra | Quintanilla Zurita | 118 | Characterization of the subsurface Eddies on the MOSAiC data |
| 5 | INTERDISCIPLINARY OCEAN | Sebastian | Zeppenfeld | 134 | Marine carbohydrates in surface seawater during MOSAiC |
| 6 | INTERDISCIPLINARY OCEAN | Hauke | Flores | 164 | Overwintering in the Central Arctic: Vertical and seasonal distribution of mesozooplankton |
| 7 | SPECIES | Martin | Graeve | 57 | Calanus hyperboreus seasonal migration - the early, the late and the transient |
| 8 | 44 | CANCELLED | |||
| 9 | FROM SPACE | Amy | Macfarlane | 62 | Snow polydispersity: linking the measurable optical grain size to microwave grain size |
| 10 | FROM SPACE | Felix | Linhardt | 67 | Monitoring melt pond water volume from space |
| 11 | FROM SPACE | Victor | Lion | 69 | Derivation of Melt Pond Depth on Arctic Sea Ice Using Multispectral UAV Data |
| 12 | FROM SPACE | Niels | Fuchs | 117 | The MOSAiC floe from a bird's eye view |
| 13 | FROM SPACE | Maximilian | Semmling | 125 | From GNSS Signal Propagation Effects to Remote Sensing Products in the Central Arctic |
| 14 | FROM SPACE | Gunnar | Spreen | 138 | Influence of warm air intrusions on Arctic satellite sea ice conc entration time series |
| 15 | FROM SPACE | Lena | Buth | 166 | Airborne perspectives on spatial melt pond properties and sea ice morphology |
| 16 | LEADS | Zakaria | Mostafa | 50 | LES simulations on the impact of sea-ice leads on the atmospheric boundary layer using MOSAiC data |
| 17 | LEADS | Shiyi | Chen | 90 | Arctic Wintertime Sea Ice Lead Detection from Sentinel-1 SAR Images |
| 18 | PROCESSES & SCALES | Martin | Schneebeli | 97 | Small-scale snow stratigraphic variability and processes during winter 2019-2020 |
| 19 | PROCESSES & SCALES | Amy | Lauren | 121 | High Arctic to High Fashion: MOSAiC Sea Ice Premieres at New York Fashion Week |
| 20 | PROCESSES & SCALES | Anne | Sledd | 122 | Understanding differences in MOSAiC-based snow thermal conductivity studies and their impacts in models |
| 21 | PROCESSES & SCALES | David | Clemens‑Sewall | 139 | Progress Towards a Single-Column Model (Icepack) Case Study for the MOSAiC Expedition |
| 22 | PROCESSES & SCALES | Vasco | Mueller | 165 | Mesoscale Eddies in the Eurasian Basin from a 1-km simulation |
| 23 | PROCESSES & SCALES | Emelia | Chamberlain | 174 | Leveraging community structure data and machine learning to impro ve microbial diversity in a 1-D Arctic Ocean ecosystem model |
| 24 | AEROSOL & CLOUDS | Viktoria | Dürlich | 76 | Investigation of multilayer clouds with K-means clustering of MOS AiC radiosoundings |
| 25 | AEROSOL & CLOUDS | Maximilian | Maahn | 58 | Introducing the Video In Situ Snowfall Sensor (VISSS) |
| 26 | MODELS | Rolf | Zentek | 48 | Kilometer-scale simulations of the impact of sea-ice leads on the atmospheric boundary layer |
| 27 | 53 | CANCELLED | |||
| 28 | MODELS | Evelyn | Jäkel | 75 | Sensitivity of the net surface solar irradiance to the representa tion of the Arctic surface albedo in the coupled regional climate model HIRHAM-NAOSIM |
| 29 | MODELS | Edgar | Donath | 109 | Using MOSAiC observations to characterize differences in cloud re presentation in the ICON model during Arctic warm and moist air intrusions |
| 30 | MODELS | Michael | Gallagher | 136 | Presented by: TBD Evaluation of errors in bulk aerodynamic parameterizations over s now-covered sea ice due to approximations of roughness length |
| 31 | SUNLIGHT | Niels | Fuchs | 112 | Time-series of under-ice PAR on MOSAiC at the transition from polar night to polar day |
| 32 | 89 | CANCELLED | |||
| 33 | MISSING ELEMENTS | Alexandra | Pliss | 88 | Identification of first year and old ice ridges in IPS data from Fram Strait |
| 34 | ARCTIC AMPLIFICATION | Sonja | Murto | 107 | First impressions and synoptic situation during the ARTofMELT 202 3 spring expedition |
| 35 | ARCTIC AMPLIFICATION | Janna | Rückert | 115 | Integrated water vapor in the Arctic: Is the Clausius-Clapeyron r elation all we need to know? |
| 36 | ARCTIC AMPLIFICATION | Daniela | Krampe | 129 | MOSAiC black carbon modelling: An outlook |
| 37 | SEASONAL CYCLE | Felix | Linhardt | 68 | Modelling Meltwater Distribution as a Factor for Melt Pond Evolut ion Along the Mosaic Drift |
| 38 | SEASONAL CYCLE | Dmitry | Divine | 79 | Regional scale summer sea ice thickness in the area of the MOSAiC central observatory - a combined view from IPS data and airborne EM surveys |
| 39 | SEASONAL CYCLE | Andreas | Preußer | 103 | The seasonal evolution of the sea ice mass balance as derived from drifting buoys: How does the MOSAiC period compare to other years? |
| 40 | A-I-O INTERACTIONS | Lu | Zhou | 52 | Recent Decades Arctic Atlantification: A Detailed Analysis of Sea Ice Balance Budget Changes |
| 41 | A-I-O INTERACTIONS | Marcel | Nicolaus | 137 | The Tara Polar Station drift program |
| 42 | A-I-O INTERACTIONS | Matthew | Shupe | 65 | The two Arctic atmospheric states and their impacts on the surface energy budget at MOSAiC |
| 43 | CARBON FLUX | Robert | Campbell | 153 | Carbon and nitrogen transformations by key zooplankton species in the Central Arctic Ocean |
| 44 | BRIDGING THE POLES | Stefanie | Arndt | 157 | Presented by: Marcel Nicolaus Snow depth vs. snow accumulation: Different behavior between Artic and Antarctic snowpacks |
| 45 | 173 | CONVERTED TO TALK IN PLENARY | |||
| 46 | independent topic | Renate | Treffeisen | 175 | Pooling resources to investigate and share information on sea ice : the Sea Ice Portal |
| 47 | PROCESSES & SCALES | Yubing | Cheng | 176 | Seasonal evolution of snow density during the MOSAiC expedition |
| 48 | ABL | Ola | Persson | 167 | Seasonal evolution of snow densSynoptic/Mesoscale Forcing of Key Atmospheric Boundary-Layer Features at MOSAiC |
| 49 | ABL | Sandro | Dahlke | 130 | Different states of the winter time boundary layer: Disentangling the role of combined radiation-, cloud-, and wind regimes in reanalysis and observations |
| 50 | ABL | Benjamin | Kirbus | 51 | Marine cold air outbreak case study during MOSAiC-ACA: Air mass transformations forced by surface changes and advection in higher altitudes |