BEGIN:VCALENDAR VERSION:2.0 PRODID:-//jEvents 2.0 for Joomla//EN CALSCALE:GREGORIAN METHOD:PUBLISH BEGIN:VEVENT UID:8a6abbd9060592b22af352e82a83ead6 CATEGORIES:Polar Conferences, Meetings and Events CREATED:20170412T141414 SUMMARY:Workshop on Modeling Meltwater in Snow and Firn: Processes, Validation, Intercomparison and Model uses of Optical Remotely Sensed Data DESCRIPTION:

Workshop on Modeling Meltwater in Snow and Firn: Processes, Validation, Intercomparison and Model uses of Optical Remotely Sensed Data, 20-22 Septe mber 2017, Copenhagen

The workshop starts Wednesday Sep 20 at 12.00, and ends Friday Sep 22 at 12.00.
A PROMICE 10 -year jubilee and reception is planned for the afternoon of Sep 22.

Purpose

to present and discuss results on modeling of meltwater retention processes in snow and firn on i ce sheets and glaciers;
to plan and coordinate meltwater retention model development;
to emphasize optical remote sensing snow paramet er data comparison and data assimilation;
to formulate a protocol f or a meltwater retention model intercomparison project (RetMIP)

This is workshop two as part of Danish Council for Independent Research (DFF) Natural Sciences program (FNU) project 4002-00234: Unde rstanding and predicting non-linear change in the permeability of Greenland firn and has a special session co-sponsored by the ESA Scientific Exploi tation of Operational Missions (SEOM) Sentinel-3 for Science, Land Study 1: SNOW.

Sessions

Snow model d evelopment
Meltwater retention model validation
Meltwater r etention model intercomparison project (RetMIP)
Optical remote sens ing to improve snow models

Session 1 welcomes, for example, model considerations of water availability vs. percolation ra te vs. refreezing rate to explore the importance of heterogeneous percolati on modelling in polar firn; fine-and-local scale/detailed modeling with pos sible suggestions to including bulk effects in larger-scale models; inclusi on of piping (for instance, by “skipping layers” during percolation) in dis tributed or single-column models; inclusion of horizontal water motion in s now and firn, i.e. between grid cells.

Session 2 wil l focus on discussions of useful model validation metrics and aim to compil e observational datasets that may be used to validate the above processes.< /p>

Session 3 will discuss and formulate a protocol for a meltwater retention model intercomparison project.

Session 4 serves an ESA Sentinel-3 for Science Land Study: Snow “S -3-Snow” that includes an element to gather and prioritize snow mo deller interest and requirements about optical remotely sensed snow paramet ers (snow extent, albedo, grain size, impurity content, etc.). The ESA study is to engage users of Sentinel-3 snow optical retrievals in 1.) model comparison and/or 2.) data assimilation.

The worksh op session is to:

survey and prioritize remotely sensed sno w parameter data users’ requirements for global and regional snow informati on
discuss how to enhance methods for estimating snow parameters, e ither from remote sensing or from modeling, and to evaluate advantages and disadvantages of the different approaches
consult users about the u tility/interest in other snow products suitable for studying climate-relate d issues.

Workshop expected outcomes< /p>

a protocol for a retention model intercomparison project (RetMIP ) including instructions and datasets for validation.
a list of req uirements and minimum accuracy levels for models using optical remotely sen sed snow parameter data
a journal special issue like the 2016 special issue in Frontiers in Earth Science – Melt Water Retention Processes in Snow and Firn on Ice S heets and Glaciers: Observations and Modeling, papers feeding into the IPCC Special Report on Climate change and the oceans and the cry osphere.

Financial Support
W e have some financial support, but may ask a modest registration fee. We pl an for the workshop to include lunch, morning and afternoon coffee breaks.< /p>

Venue
Geological Survey of Denmark and Greenland (GEUS), Østervoldgade 10, DK-1350 Copenhagen K

Contributions
Contributions are welcomed in the form of oral presentations and/or posters. Presentation duration will be 15-20 min utes, including discussion. One or more longer invited keynote presentation s are planned.

Abstracts and registrationThose intending to attend the workshop should submit abstracts (maximum length 200 words) by email to Peter Langen (This email address is being protected from spambots. You need JavaScript enabled to view it.) no later than the registration deadline Friday 18 August 2017. Ab stracts should indicate whether an oral or poster presentation is preferred .

Financial support
We are working to raise some financial support for early career scientists to participate in the workshop. Please indicate at registration whether you will request supp ort.

Accommodation
A range of hotels a nd hostels exist near the workshop location. Public transit is very efficie nt, including bike rental. Booking these early is recommended due to high d emand that may occur.

DTSTAMP:20260418T053750Z DTSTART;TZID=UTC:20170920T120000 DTEND;TZID=UTC:20170922T120000 SEQUENCE:0 TRANSP:OPAQUE END:VEVENT END:VCALENDAR