Conf Digest, Vol 20, Issue 3

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Conf Digest, Vol 20, Issue 3

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-=-=-=-=-=-=-=-=-=-=-=-=-=-
     CRYOLIST Conference Digest
-=-=-=-=-=-=-=-=-=-=-=-=-=-


Today's Topics:

   1. Snow Grain Size Workshop - Measurements and Applications
      (Ghislain Picard)


----------------------------------------------------------------------

Message: 1
Date: Thu, 12 Jul 2012 14:49:01 -0400
From: Ghislain Picard <[hidden email]>
To: [hidden email]
Subject: Snow Grain Size Workshop - Measurements and Applications
Message-ID: <[hidden email]>
Content-Type: text/plain; charset="iso-8859-1"



Dear Colleagues,

I'd like to bring to your attention a workshop on snow grain size
measurements. Tue 2 - Fri 5 April 2013, Grenoble, France


Goal:
-------
Snow grain size is an essential property required for  many
applications: cold regions hydrology, polar and mountain climatology,
optical and microwave remote sensing, snow chemistry, etc. However,
field and laboratory measurements of snow grain size are notoriously
difficult and impaired by the coexistence of inconsistent definitions.
Several instruments and methods based on very different physical
principles (optical, gas adsorption, tomography, stereology) have been
developed in the last decade, with differences in terms of
reproducibility, acquisition time and vertical and horizontal resolution
in the field. In recent years,  grain size measurements have been
conducted by different groups in a wide variety of environments.
However, little is known about the accuracy of these methods due to  the
lack of an approved  reference method and the insufficient number of
inter-comparison exercises.

The*main objectives *of the meeting is to gather snow grain size
specialists to:
1 -- present established and new methods of measurements.
2 -- discuss about the accuracy, comparability and quality of existing
measurement methods,
3 -- identify areas where action at the international level is needed to
improve the situation.

Emphasis is deliberately placed on field or laboratory methods together
with their theoretical relation  to a particular definition of  snow
grain size. Development and applications related to grain size in the
field of remote sensing, snowpack modeling and data assimilation are
also welcome and open for discussion.

The 4-day workshop will include keynote lectures, oral presentations,
poster presentations, discussions and one-day field trip near Grenoble.
The objective of this field day is to demonstrate  the instruments
brought by the participants to the  others and to potentially initiate
an inter-comparison.

This workshop is the first meeting associated to the working group
"From quantitative stratigraphy to microstructure-based modeling of
snow"  which will be supported by  the International Association of
Cryospheric Sciences (http://www.cryosphericsciences.org/).


*Website: http://snowgrain2013.sciencesconf.org/*

Preliminary program:
----------------------------

Apr 2:  Three 40'  invited lectures by
    Florent Domine, UMI Takuvik, Qu?bec, Canada. (Methane adsorption,
SWIR method)
    Martin Schneebeli, SLF, Davos, Swiss (NIR photography, tomography)
    McKenzie Skiles / Thomas Painter, UCLA, Los Angeles, USA (Spectroscopy)
    Oral presentations & discussions (20' each)
    Poster session
   
Apr 3:    Oral presentation & discussions (cont.).
    Poster session

Apr 4:    Field trip with your instruments!

Apr 5:    Discussion focusing on:
    - possible context for an inter-comparison of methods at the
international level,
    - the possibility of a community-wide white paper on snow grain size
measurements, including  recommendation for new users,
    - general topics.


Important dates:
----------------------

Abstract Submission for oral presentation or posters: Open until Dec 16,
2013
Registration: until Mar 3, 2013
Sending your intention to participate as early as possible will help the
organizers.


Location & practical details:
-------------------------------------

The meeting will be held at Laboratoire de Glaciologie et de G?ophysique
de l'Environnement (http://lgge.osug.fr/?lang=en) on the campus of the
Universit? Joseph Fourier, 10 minutes by tramway from Grenoble city center.

There is no fee for the participation to the meeting. Lunches will be
provided in the conference room.
Travel, accommodation, breakfast, dinner and other expenses are to be
organized and funded by the participants (recommendation will be posted
later). If you intend to bring an instrument (which is strongly
encouraged), please contact the organizers for shipping arrangement.
 
Nearest airport: Lyon St Exupery (LYS)
http://www.lyonaeroports.com/eng


With best regards,

The organizers:
Ghislain Picard (LGGE, Grenoble)
Samuel Morin (CNRM-GAME/CEN, Grenoble)
Henning Loewe (SLF, Davos)


--
Ghislain Picard

Laboratoire de Glaciologie et G?ophysique de l'Environnement
54 rue Moli?re - Domaine Universitaire - BP 96
38402 St Martin d'H?res Cedex, FRANCE
Phone : +33 476 82 42 45 fax : +33 476 82 42 01

/----------------------------------------------------------
Summer 2012 sabbatical at:
Centre d'Applications et de Recherches en T?l?d?tection (CARTEL)
Universit? de Sherbrooke
2500 Bd Universit?, Sherbrooke, Qc J1K 2R1 Canada
Phone: 1 819 821 8000 # 65655




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