Tolman, December 1, 2014The NPS- looking forward, 1/10 The NCEP Production Suite Looking forward Hendrik L. Tolman Director, Environmental Modeling Center.

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Presentation transcript:

Tolman, December 1, 2014The NPS- looking forward, 1/10 The NCEP Production Suite Looking forward Hendrik L. Tolman Director, Environmental Modeling Center NOAA / NWS / NCEP

Tolman, December 1, 2014The NPS- looking forward, 2/10 Driving forces  UCAN report and NCEP Strategic plan EMC modeling directions:  Toward unified modeling:  Simplify Production Suite.  But ….. also add more:  New elements in the environmental modeling suite.  Reforecast for postprocessing of model results.  Be more nimble, faster model improvements.  But …… changes require much work on post-processing side, so change less often ….. EMC do more do less change faster change slower modeling strategy

Tolman, December 1, 2014The NPS- looking forward, 3/10 ✓ ✗ ✗ ✗ Do less  Simplify NPS, unified modeling First deal with global and regional separately.  To disruptive for operations to unify all at once. Unified modeling approach promoted by UCAN.  NOAA Environmental Modeling System (NEMS, ESMF).  From GFS / GEFS / CFS models to coupled model with GFS / GEFS / CFS applications.  Reduce number of mesoscale models  RSM, ETA, NMM, HWRF, NMM-B, WRF-ARW.  Global – meso unification ?  Keep in mind in planning phases.  Actual unification later.

Tolman, December 1, 2014The NPS- looking forward, 4/10 Do more  Emerging Requirements Weather Ready Nation.  Products.  Social science. High impact events. Weather to climate—seamless suite of guidance and products.  Week 3-4.  Systematic reforecast need. Range of products beyond weather:  Atmosphere, land, ice, ocean, waves, aerosols, (ecosystems).  Individual products versus coupled modeling.  Water cycle, NWC.

Tolman, December 1, 2014The NPS- looking forward, 5/10 Change faster  Guiding factors: Community modeling  Concepts proven with HWRF, WW3, CRTM, ….  Communicate operational business model to academia.  Town hall meetings at AGU and AMS. New opportunities  Sandy Supplemental, R2O funding (NGGPS).  Has to be integrated R&O approach, not building of new stovepipes. Modeling strategy:  We need a well articulated and documented strategy.  Now only bits and pieces in place.  Following three slides …

Tolman, December 1, 2014The NPS- looking forward, 6/10 Forcing Factors  Science and Technology Advances Observing systems High performance computing Data dissemination Numerical Guidance Systems  Data assimilation (methodology)  Modeling (physics, coupling & dynamics)  Ensembles (constr.—initialization, membership, etc.)  Intelligent post processing Predictability  convective systems  Seasonal to interannual

Tolman, December 1, 2014The NPS- looking forward, 7/10 The NOAA Modeling Strategy…  High Level Perspective Moving away from the “model of the day”. Priorities for deterministic development are clear:  Data assimilation (methodology and observations).  Model physics  Why do we continue to underplay this important part of the enterprise?  Clouds, microphysics, radiation, land, ocean, waves, ice, aerosols….includes coupling.  Resolution—horizontal and vertical.  Dynamic core.  Must consider advanced HPC technologies.  Regional systems shift to convection permitting applications.

Tolman, December 1, 2014The NPS- looking forward, 8/10 The NOAA Modeling Strategy… Focus on probabilistic modeling (ensembles).  Continue to pursue multi-model approach to ensembles.  Limited within NCEP.  National or international approach.  Don’t forget: ensemble systems only as good as the modeling system it is built from.  Presentation / use of probabilistic information.  Push to products for week 3-4. Unified modeling approach promoted by UCAN. * UCAR Community Advisory Committee for NCEP

Tolman, December 1, 2014The NPS- looking forward, 9/10 Change slower  Changing slower versus developer- user engagement in implementation process. Use HWRF paradigm for more implementations.  To be discussed later today. Increased MDL, NCEP Centers, (OHD, NWC) involvement in implementation process.  Operationally sustainable “downstream” processing.  Articulate needs for retrospective data (including reanalysis and reforecasts).  Clear expectation on time lines for implementations.  Business cases for  Up front available retrospective data.  Real-time available retrospective data.  Sunsetting of old model versions.

Tolman, December 1, 2014The NPS- looking forward, 10/10