Operation icebridge data release challenges
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Operation IceBridge : Data Release Challenges. Marilyn Kaminski, Joel Plummer, Eric Larour and Sophie Nowicki. Gridding and unstructured meshes. Release gridded datasets as this is the #1 form of data delivery expected by the modeling community.

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Operation IceBridge : Data Release Challenges

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Operation icebridge data release challenges

Operation IceBridge: Data Release Challenges

Marilyn Kaminski, Joel Plummer, Eric Larour and Sophie Nowicki


Gridding and unstructured meshes

Gridding and unstructured meshes.

  • Release gridded datasets as this is the #1 form of data delivery expected by the modeling community.

  • To address needs of growing number of higher-order models, release gridded datasets with patches of increased resolution in critical areas (PIG, JKS, …)

  • Release also raw datasets at each measurement point (lat,long,value) for FEM models that rely on unstructured meshes.


Uncertainty analysis

Uncertainty analysis.

  • Release error ranges and error types (i.e. what is the statistical distribution of errors) along with datasets.

  • If not possible, release coarser resolution error maps that can be mapped onto the datasets.

  • Release error origin: introduced during the processing? during data handling? during interpolation? during measurement itself?


Operation icebridge data release challenges

  • Modelers’ needs

  • - Data consistency over time is really important (for formats and grids)

    • Users need to be sure that new data can be read and understood in same ways as previous data

    • Same concern noted in development of sea ice community product

  • What is a good choice for users… ex: netcdfbut not universal?

  • Format converters could be written so data can be distributed in format of choice

  • NSIDC’s IceBridge charter to preservedata and increase usage leads to similar goals

  • Data consistency over time

    • Changes are OK but need to be planned, and previous data ought to be reprocessed

  • Standard archive formats (netCDF4 and HDF5 approved by NASA data mgmt)

  • Complete documentation and metadata


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