Bedmap3 - CALL FOR DATA

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Bedmap3 - CALL FOR DATA

Pritchard, Hamish D.
Dear colleagues,
 
We would like to take this opportunity to invite submission of data for the Bedmap3 project.
 
Bedmap3 is an internationally collaborative SCAR product, building on the legacy of Bedmap and Bedmap2, tasked with compiling a new dataset of sub-glacial topography. The outputs of the project will be important to many SCAR groups and projects. The Bedmap3 core group has consulted the wider community through town hall meetings at SCAR Davos, IGS Stanford and ISAES Incheon and the community has agreed the terms and requirements of the project as described below.
 
The project starts in August 2019 and will run for three years. The first part of the project is to collect and compile new data on ice sheet and ice shelf thickness and the depth of sub-ice-shelf cavities acquired since the publication of Bedmap2 in 2013. This may include observations derived from radar, seismic, gravity and altimetry data. This should be possible by summer 2020.
 
These data will then be combined to create gridded products which may incorporate model outputs and other techniques to make an ensemble of ice thickness and the bed topography products.
 
The major difference between Bedmap/Bedmap2 and Bedmap3 is that all data used in the Bedmap3 project will be open access and disseminated under the creative commons license CC-BY 4.0, such that the credits of individual data should be given to the data generators (as specified in the meta data) but the data can be freely used and re-distributed by others (https://creativecommons.org/licenses/by/4.0/). The current plan is to store the data at a single data centre from which users can download both data and metadata (including citing information) as well as Bedmap3 compiled maps and gridded products via the Internet.
 
In the three meetings mentioned above, we had in-depth discussion on data policy for the project. The earth science community is moving towards open data, and we do believe that open access both to the data and compiled maps is the best way to share the full value of your long-term efforts in Antarctica. The CC-BY4.0 license requires data users to credit the original data source, so every time your submitted data are used, your paper will receive a citation.
 
Because data for Bedmap and Bedmap2 were collected under different conditions, we would like to ask you to make every effort to re-submit data that were already used for these earlier Bedmaps. The Antarctic Treaty requests that all data be shared for the full scientific benefit of the entire community, and we hope that you can convince your institutions and programs to help Bedmap3, as a key community dataset.
 
We request data on ice thickness and sub-ice-shelf cavity depth in a standard tabular format as ASCII text files with one line per point. For detail of required data formats, and upload instructions please
contact Peter Fretwell: [hidden email].



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