ESMF Regridding Software in NCL

ESMF Executive BoardInteragency Working Group Meeting

June 12, 2014

Mary Haley NCAR/CISL/VETS

Special thanks to NOAA/CIRES teamRobert Oehmke, Cecelia DeLuca, Peggy Li

NCAR Command LanguageAn open source scripting language developed and supported at NCAR, tailored for the analysis and visualization of geoscientific datahttp://www.ncl.ucar.edu

NCLs main featuresSimple, robust file input and outputHundreds of analysis (computational) functionsVisualizations are publication quality and highly customizableFree and well-supportedTraining available

ecosystem modelelectric powerextreme weather eventsfire weather forecastingfish climateflight experimentsfluid dynamicsfog forecastforest productivityfusion plasmageophysics supportglacial climate studiesgreenhouse modelingheat balanceheavy rainfallhistorical weather mapshumidity projectionshurricaneshydrology modelingimprovement of dairy cattleinsect researchionospheric studieslake effect snow stormslarval transportlightning researchmagnetic resonance imagingmagnetohydrodynamicsmapping epidemiological data marine studies martian climate material stress and strain mercury deposits meso-gamma simulations microbiology microburst outflowsmodeling of stem cellsmolecular physicsmonsoon studiesmorphodynamics, long termneuron modelnoble gas samplingocean biologyocean eddy researchoceanographyoptical data, display ofozonepaleoclimate studiesparticle orbitphysicsplanetary exploration dataplasma simulationpolar researchradiation risk researchradiowave propagationreal-time ocean forecastingremote sensingrenewable energyrice productionroad weather researchsatellite image processingscattometer studiessea breeze simulationsea ice studiessediment transport researchships in waves simulationssnake bites in Brazilsnow data assimilationsoaring conditions for gliderssocial sciencessoil moisturesolar irrigation change space geodesy space weatherspread of farming & milk drinkingstar modelingstation data plotsstorm surge analysisstorms, forecasting ofsurf chartsteachingtokamak modelingtornado climatologytransport of aerosols from oil facilitiestropopsheric air pollutionturbulent particle-laden flowtyphoon researchurban flood demonstrationurban meteorologyvolcanic signals in ice coreswater resources and irrigationwater vapor feedbackweather displayweather forecasting for sailboatsweather modificationwildfire simulationwildlife conservation and restoration programwind energywind erosionwind forecasting for wind surferswind resources

DTV propagation analysisIPCC researchMARS camNASA precipitation missionsair quality researchair scienceair ventilation assessmentair-sea interactionaircraft icing researchanimal disease modelingapplied insuranceastronomyatmospheric researchatmospheric teleconnectionsatomic energyaviation forecastingbattlespace environment modelingbauxite refinerybeam physicsbiofuels modelingbiogeochemistrybird migrationblack holebluetongue transmission riskborehole temperaturesbushfire mitigationcarbon cycle modellingcell motilityclimates of extrasolar planetscloud parameterizationdimethylsulphoniopropionatedisaster preventiondrought predictingdustearth magnetic fieldTypes of research reported by NCL userss

NCL users are worldwideGraduate students in climate sciencesScientists at research centers and labsSome commercial usage

NCL metrics19,500 registered users in over 100 countries since 20101,500 monthly downloads2,019 email list subscribers270 monthly emails (includes responses)70 workshops since 2000 (1,030 students)

Joint student project at NCAR/CISL with NOAA/CIRESDevelop a suite of functions to incorporate the ESMF regridding capabilities in NCL.Very successful project! Released in NCL beta version in May 2012, and officially in October 2012 Mohammad Abouali SIParCS Intern at CISL/NCAR, 2011 Computational Science Ph.D. Student at Joint Program between SDSU & CGU

Why ESMF regridding?One interface to handle different grid types (rectilinear, curvilinear, unstructured)Easy to switch interpolation methodsWorks on global or regional gridsCan use weights for faster regriddingCan run in parallelKnow the team members

Uses for ESMF regriddingCMIP5 regridding suiteWRF (weather and research forecast) model data to other gridsSpatially merging Daymet NetCDF filesECMWF Operational Model Analysis gridOcean models (ROMS, POP, ORCA)Unstructured grids (MPAS, HOMME, ICON) (hexagonal, cubed)CLM (land surface model)HDF satellite (swath) dataCCSM grid to EASE gridGPCP (Global Precipitation Climatology Project)CCSM ice to CCSM atmosphericHIRLAM (hydrostatic grid-point model, can be rotated)MOZART emissions

NCL/ESMF Regridding

http://www.ncl.ucar.edu/Applications/ESMF.shtml

Questions?Mary Haleyhaley@ucar.edu

40 local, 18 U.S. universities, 12 intl

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