Center for Earth Observing and Spatial Research

Science Algorithms

Science Algorithms

DPR Algorithm Responsibilities

  • Level-1 DPR algorithms were developed by JAXA and run only at JAXA MOSS.
    • The L1B Ku and Ka products are ingested by PPS for use in later processing.
  • Level-2 and Level-3 algorithms are developed and delivered to both data systems by Joint DPR Science Team algorithm leads.
  • Algorithm developer codes have been integrated into the PPS.
    • Algorithms need to run in multiple environments.
      • Algorithm developer’s local configuration.
      • NASA/PPS and JAXA/MOSS data systems.
  • Data formats have been coordinated with algorithm developers.
  • PPS toolkit for I/O (TKIO) data structures are used for output to HDF5.
  • HDF5 internal compression.

Current DPR Algorithm Codes (Versions of the DPR algorithms currently in PPS OAT)

  • Level-2 Version: 20131010
    • 2AKu, 2AKa, 2ADPR
      • Orbital IFOVs. Normal, Matched, High-sensitivity scans.
  • Level-3 Version: 20131011
    • Daily: full product 5.0deg and 0.25deg, no std. dev.
    • Monthly: full product, 5.0deg and 0.25 deg., w/ std. dev.
    • Joint: subset of Daily product w/ time stamped grid boxes
      • [OAT 12/1]
  • Intel Fortran Version 14.0.0
    • A service pack is available but has not yet been tested.
    • Testing will be performed on current algorithm versions: 11/20/2013.
    • Results will determine if PPS/MOSS will update compilers.

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