Research Data Archive (RDA) Access and Services from Yellowstone Grace Peng and Doug Schuster 1

RDA Talk Outline Background: What is the RDA? Web interface tour – RDA Home Page – Dataset Home Page Dataset holdings on GLADE and HPSS RDA supported subsetting services on YS RDA User support services 2

Background: What is the RDA? 600+ Dataset Collections – ocean & atmosphere observations – analyses – reanalyses – operational NWP outputs Directly accessible on GLADE and HPSS Free and open access Science educated staff – expert consultants and data engineers 3

RDA Home Page (rda.ucar.edu) Register for RDA account or sign in with UCAS credentials Free text search Faceted Search Popular Dataset Lists By Dataset ID 4

Dataset Home Page “Detailed Metadata” provides detailed dataset inventory Navigation tabs at the top of each Dataset Home Page Dataset ID number 5

Dataset Home Page Dataset Citation Generator Data Access Tab –Find Data on /glade and HPSS 6

Data Access Matrix Find dataset file locations on /glade and HPSS 7

Dataset holdings on /glade Most RDA datasets are available on /glade – /glade/p/rda/data/dsnnn.n Use “rdals” utility for enhanced directory/file listings – Directory listing: Name, Data Volume, File Count, Dataset Title – File listing File Name, Data Size, Data Format, Brief Description – Located in /glade/u/apps/contrib or /glade/apps/opt/usr/bin/rdams – “rdals /glade/p/rda/data” sample output: 8

RDA supported subsetting services on YS Data subset requests can be submitted on YS using the “rdams” utility – rdams utility features Get detailed metadata Submit subset requests Check on request processing status Request output written to /glade/scratch/ by default – Located in /glade/u/apps/contrib or /glade/apps/opt/usr/bin/rdams – See 9

RDA User Support Services Dataset specialist listed on each dataset homepage General help RDA blog Future: User tutorial video series 10

Questions? 11