Questionnaire User Requirements for Glacier_CC

[Tobias Bolch]

Dear all,

Please apologize for cross-posting!

In the framework of the recently started ESA project Glaciers_cci within 
the ESA Climate Change Initiative 
(http://earth.eo.esa.int/workshops/esa_cci/), user requirements are of 
outermost importance to set-up the project and work towards the needs of 
the community. To get a most recent feedback on these data needs and 
maybe also the ongoing work, we would highly appreciate when you can 
give us a short feedback on the three questions listed below. A major 
aim of the project is to map glaciers and icecaps from satellite data 
(mostly Landsat) to further complete the global glacier inventory and 
contribute the outlines and inventory data to the GLIMS glacier 
database. For this purpose we have prepared a draft list of key regions 
that should be updated. The project does further derive glacier 
elevation changes and velocity fields from repeat satellite data (using 
altimetry/DEM differencing and optical/microwave sensors) with target 
regions or time periods yet to be defined. To better serve the 
glaciological community in this regard, we would like to ask you to give 
us feedback (per email to frank.paul at geo.uzh.ch) on your regions and 
time periods of interest for such products. We will prepare a project 
webpage to keep you updated about the progress of the work and to 
consider future feedback. A reply before January 28 would be highly 
appreciated.

Please do not hesitate to contact us when you have any further questions!

With many thanks for your feedback and best regards,

Frank and Tobias


Q1. For which geographical regions (globally) would 
production/availability of the following products be most important in 
your view:
a) glacier inventory data (outlines with topographic attributes)?
b) elevation changes (either from altimetry or DEM differencing)?
c) velocity fields (either from optical or microwave data)?

Q2. What is your prefered acquisition date / time period / interval for 
the three products
a) glacier inventory data (date)?
b) elevation changes (time period)?
c) velocity fields (interval)?

Q3. To avoid overlap with ongoing glacier inventory work that is not yet 
visible in the GLIMS database but might be submitted to GLIMS in 2011, 
we would like to know, which regions you are currently analysing 
(country, mountain range, Landsat path-row and date)?


-- 
Dr. Tobias Bolch
Geographisches Institut/Department of Geography
Universität Zürich/University of Zurich
Winterthurer Str. 190
CH-8057 Zuerich
Tel. +41 44 635 5236
tobias.bolch at geo.uzh.ch