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Conference announcement and call for papers for the ISPRS Congress to be held in July, 2016 in Prague. http://www.isprs2016-prague.com Working Group IV/3 will be hosting several sessions on Global DEM interoperability and invite your participation in the sessions. All topics related to digital elevation models are welcome including DEM production activities, DEM evaluation/validation methods and results, coastal bathymetry and topography fusion, bare earth retrieval methods, and software for DEM assessment. For further information on topics of interest see the terms of reference for Working Group IV/3 at http://www2.isprs.org/commissions/comm4/wg3.html. Abstract submission is now open on the Congress web site (see: http://www.isprs2016-prague.com/). The deadline for abstract submission is December 13, 2015. Please feel free to forward the call for papers to interested colleagues.

Available layers:

Download land surface model per Equi7 region:

• AF(49)
• AN(23)
• AS(56)
• EU(43)
• NA(30)
• SA(28)
• OC(57)

Grid definition:

Projection system: Equi7 grid
Spatial resolution: 250m
Total size: 3.3 GB
proj4:+proj=aeqd

Lineage:

The DEM presented below (projected in equi-distance system hence ready forDEM analysis / flow modelling) was produced as a weighted average between three sources of global DEMs:

• ViewfinderPanoramas SRTM DEM
• SRTMGL3, and
• GMTED2010

The processing steps are explained in detail via the Github repository on WorldGrids. Read more about global DEM data sources: DEM data sources (a review).

Data owner: Public
Reference: Optimisation of global grids for high-resolution remote sensing data

Attachment:

Equi7t3_shp.zip

Fig_Equi7t3_tiling.png

Github repository

Programme

DAY 1: Monday 22.06.2015

Poster Session

DAY 2: Tuesday 23.06.2015

DAY 3: Wednesday 24.06.2015

DAY 4: Thursday 25.06.2015

Parrallel workshops

DAY 5: Friday, 8:00 A.M 26.06.2015

All-day conference trip

Adam Mickiewicz Square, City Centre near Adam Mickiewicz Monument

Mirosław Makohonienko, Małgorzata Mazurek

Short title: transform

Inputs: Slope raster or curvature raster; any other variables with skewed or long-tailed distributions
Outputs: Normalized slope or curvature raster; a text file informing about transformation used and new skewness/kurtosis.

For INSTRUCTIONS, please visit: http://research.enjoymaps.ro/downloads/

Reference:
Csillik, O., Evans, I.S., Drăguţ, L., 2015. Transformation (normalization) of slope gradient and surface curvatures, automated for statistical analyses from DEMs. Geomorphology 232(0): 65-77.

Purpose and use:

Automated procedures are developed to alleviate long tails in frequency distributions of morphometric variables. They minimize the skewness of slope gradient frequency distributions, and modify the kurtosis of profile and plan curvature distributions towards that of the Gaussian (normal) model. Box-Cox (for slope) and arctangent (for curvature) transformations are used. The transforms are applicable to morphometric variables and many others with skewed or long-tailed distributions. It is suggested that such transformations should be routinely applied in all parametric analyses of long-tailed variables. Our Box-Cox and curvature automated transformations are based on a Python script, implemented as an easy-to-use script tool in ArcGIS.

Programming environment: Python
Status of work: Public Domain

Transformation-Tools.zip

This is to remind all our members that the submission deadline for the Geomorphometry.org/2015 is due in 5 days i.e. on 28th of November. If you plan to participate in the Geomorphometry.org/2015 conference next year in Poznan, this is your last chance to submit an extended abstract and compete for one of the oral talks. Please note that there will be no extensions of this deadline! For more information please feel free to contact the organizing committee.

Instructions: To submit a 2-4 pages summary papers for the Geomorphometry 2015 use the EasyChair conference system. Do not submit your work by e-mail. Do not submit MS word documents but only PDF versions of your paper. Detailed instructions on how to preprare you extended abstract and how to submit it are available here. Each submission will go through a peer-review process and will be rated by the members of the scientific committee. Revisions and final acceptance of the extended abstracts will be closed in February 2015. After that we will publish the working programme of the conference and open the full registrations. We look forward to seeing you in Poznan!!

Important dates:

• Extended abstracts due: 28 November 2014
• Notification of acceptance (revisions): 1 February 2015
• Workshop proposals due: 1 February 2015
• Final camera-ready digital manuscripts due: 1 May 2015
• Early registration deadline: 1 May 2015
• Conference date: 22-26 June 2015

At Geomorphometry.org/2015 We are expecting a number of exciting keynotes, invited lectures and workshops. Here is one more time the complete list:

• Marco Giardino, School of Natural Sciences, University of Torino, Italy: “Multidimensional approach to natural instabilities in mountain areas: how geomorphometry can improve both hazard modelling and risk perception”
• Markus Metz, GRASS Development Team, Fondazione Edmund Mach, Trento, Italy: “Searching for water: hydrological modelling concepts in GRASS GIS”
• Lucian Drăguţ, West University of Timisoara, Romania: “Object-oriented geomorphometry”
• Tomasz Stepinski, Space Informatics Lab, University of Cincinnati, Ohio, United States: “Doing Geomorphometry with Pattern Analysis”
• Piotr Wężyk, Laboratory of Geomatics, University of Agriculture in Krakow, Poland: “Making the invisible visible – the DTM modelling in complex environment”
• Alberto Moreira, Microwaves and Radar Institute, German Aerospace Center, Oberpfaffenhofen, Germany: “TanDEM-X: A Challenging Radar Mission for Generating a New Earth’s Topography”
• Christopher Crosby, Open Topography Group, United States: “OpenTopography: Enabling Online and On-Demand Access to High-Resolution Topography Data for Natural Hazards”
• Tomasz Niedzielski, Institue of Geography and Regional Development, University of Wrocław, Poland: “Hydrological forecasting in real time: an experimental integrated approach”
• Steve Kopp, Environmental System Research Institute, Redlands, CA, United States: “Expanding the reach of Geomorphometry through Web GIS”

WorldDEM, the new global elevation data set with resolution of 12 m and amazing vertical accuracy of <±2 m (http://www.astrium-geo.com/worlddem/) is now available for pre-order. See availability of the finished tiles at http://worlddem-database.infoterra.de/

If you are looking for high resolution global full coverage DEM data (based on the SRTM DEM), Christoph Hormann and Jonathan de Ferranti have prepared a public repository where you can download 3’’ arcsec resolution data (http://www.viewfinderpanoramas.org/dem3.html) at no cost. The authors claim that these tiles have been filled and corrected from the best available alternative sources. See also external links to an independent review, and some photographic comparisons.

Geomorphometry community is now also on G+. Join this community and post opinions, announcements and short stories and follow up the work of your colleagues…