Insights from 40 years of data services at NCAR s Research Data Archive. Douglas Schuster and Steven Worley

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1 Insights from 40 years of data services at NCAR s Research Archive Douglas Schuster (schuster@ucar.edu) and Steven Worley (worley@ucar.edu)

2

3 Highlights What is the? Evolution of Services User Registration Policies Future Directions

4 What is the? Purposes Support climate & weather research at NCAR and UCAR Universities Collections Ocean & atmosphere observations, analyses, reanalyses, operational NWP outputs Basic Metrics Established in 1960s 600+ datasets, 8M files, 1.8 PB +70 datasets growing daily monthly 4

5 What is the? Science educated staff Expert consultants and data engineers Free and open access

6 Evolution of services General Goals Securely maintain community reference information for a long period Facilitate easy discovery of holdings Enable simple access to holdings Provide the community with the capability to build upon or reproduce the research of others 6

7 Evolution of services 1960s to early 1990s Specialist Driven / Storage Discovery Delivery 7

8 Evolution of services Mid 1990s to Early 2000s Specialist Driven / Storage Discovery Delivery 8

9 Evolution of services Mid 2000s to Present Driven / Storage Discovery Delivery 9

10 Current Services External Users ~10K/year Geoportal! Control and DB Internal Users ~100s/year Download GCMD Journal Article Faceted Search Tools OPeNDAP, WCS, WMS OAI-PMH! Web Interface and Services THREDDS Web and Server Processing Central File System 500 TB of set NCAR/CISL High Performance Computing Command line apps Software HPSS Tape Library 1.8 PB of set Legend /User Interactions

11 Discovery Pathways External Users ~10K/year Geoportal! Control and DB Internal Users ~100s/year GCMD OAI-PMH! Distributed search Web and Server NCAR/CISL High Performance Computing Download Central File System 350 TB of set HPSS Tape Library 1.2 PB of set Legend /User Interactions

12 Discovery Pathways External Users ~10K/year Download Journal/DOI based discovery Journal Article Web Interface and Services Web and Server Control and DB Central File System 350 TB of set NCAR/CISL High Performance Computing HPSS Tape Library 1.2 PB of set Legend /User Interactions Internal Users ~100s/year

13 Discovery Pathways -Server Generated Citation

14 Discovery Pathways External Users ~10K/year Download In-house developed web interface search Faceted Search Web Interface and Services Web and Server Control and DB Central File System 350 TB of set NCAR/CISL High Performance Computing HPSS Tape Library 1.2 PB of set Legend /User Interactions Internal Users ~100s/year

15 Discovery Pathways THREDDS catalog search

16 Discovery Pathways -Advise User of Best set Collection(s) to Support Needs

17 Pathways External Users ~10K/year Download Web interface/service data request submission and data download Web Interface and Services Tools Web and Server Processing Control and DB Central File System 500 TB of set NCAR/CISL High Performance Computing HPSS Tape Library 1.8 PB of set Legend /User Interactions Internal Users ~100s/year

18 Pathways External Users ~10K/year Control and DB Internal Users ~100s/year Remote data analysis software access through TDS service endpoints Download OPeNDAP, WCS, WMS THREDDS Web and Server Processing Central File System 500 TB of set NCAR/CISL High Performance Computing HPSS Tape Library 1.2 PB of set Legend /User Interactions

19 Pathways -Unidata TDS set Collection Virtual Aggregations Issue: Clients lack authentication support User Made Products Client Tools TDS 500 TB on Disk Plots Statistical Analyses Unidata IDV NASA Panoply Gridded set Collection Virtual Timeseries Aggregation File Gridded set Collection GRIB1 File GRIB1 File GRIB1 File netcdf File GRIB2 File GRIB2 File GRIB2 File s netcdf File netcdf File NetCDF Output files Spreadsheets NCAR Command Language Web Browser Observation set Collection Virtual Timeseries Aggregation File In-Situ Observation set Collection BUFR File BUFR File BUFR File Operational Under Development

20 Pathways External Users ~10K/year Download OPeNDAP, WCS, WMS THREDDS Web and Server Control and DB Direct data analysis on HPC systems Central File System 500 TB of set NCAR/CISL High Performance Computing Software HPSS Tape Library 1.8 PB of set Legend /User Interactions Internal Users ~100s/year

21 Future Pathways External Users ~10K/year Download OPeNDAP, WCS, WMS Control Direct data analysis Private and DB Cloud for select external users? THREDDS Web and User ServerConfigured VM Central File System 500 TB of set NCAR/CISL Private Cloud HPSS Tape Library 1.8 PB of set Legend /User Interactions Internal Users ~100s/year

22 Format management and usage Archive files stored in native data formats GRIB-1, GRIB-2, netcdf, HDF, BUFR, various binary and ASCII formats Archive may be restructured, depending on end-user research needs Time-series for single variable, or synoptic-time arrangement Climate research versus weather research preference! Prefer on-demand format conversion over maintaining datasets in multiple formats Offer format transformation as an output option Leverage protocols (e.g. OPeNDAP) that make data-format transparent to the end user

23 Current Services Overview Usage metrics In PB (virtual) processing 4000 users received data subsetting and format conversion services 45K requests were processed and 380 TB of data delivered 7300 users downloaded 750TB of data from archive files Metrics are now being collected to determine user data discovery pathways and TDS use

24 Policies (User Registration, /Use, Licensing, Limits, T&Cs) User Profile provided during registration ( only) address First and Last Name Organization Country Agree to UCAR Corporate Terms of Use Special Authorizations (access to restricted datasets) Implement requirements per third party policy agreements Enable to hold and serve unique research products Analyze metrics as a basis for scientific impact assessment and economic justification Free and open access to all archive holdings We reserve the right to request payment Why?

25 Policies (User Registration, /Use, Licensing, Limits, T&Cs) Future Might instantiate access control to services in tiered levels dependent on resource strain. Highest priority for NCAR and NSF supported education and research Broadly support all US users Use unused capacity for world-wide service

26 Future Directions Improve data access General GLOBUS connect access for all holdings Expand OPeNDAP and OGC based access ESGF integration of archives with climate model data brokering e.g. distributed satellite data matchup service with marine surface observations (ICOADS) Improve data discovery More data journal articles and DOIs Additional metadata standards available through harvestable endpoints ISO Use web standards (e.g. defined by Schema.org) to support discoverability by commercial search engines Support single-sign-on identity management Tutorial videos to enhance consulting with user forum (,YouTube, edx.org) More hosted data processing Improved multi-node/mpi data preparation Sub-setting, format conversion, customized file structures Private tiered cloud structure for non-hpc users analysis (analytics, regridding, user code execution environments) Commercial partnerships public cloud Focus on new communities general science interested public, more visualization,

27 Questions? Doug Schuster

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