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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

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?
slide4

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