GES DISC Data Operations and Services Mike Theobald GES DISC
Production Highlights Completed V5.0 Reprocessing with a net rate of 13X. Integrated V5.2 algorithms and reprocessed from start of AMSU Ch. 4 degradation. Integrated L3 Support Algorithm Starting to replace/upgrade some hardware
Data Production Latency NRT AIRI2CCF Latency Standard AIRI2CCF Latency 100% 100% 80% 80% 60% 60% 40% 40% 20% 20% 0% 0% 1 2 3 4 5 24 26 28 30 32 34 36 38 40 NRT vs Standard 30% 20% Standard NRT 10% 0% 0 3 6 9 12 15 18 21 24 27 30 33 36 39 Hours since Observation
Archive Highlights S4PA archive and distribution system 6 separate servers 100 TB 8,000,000 granules All data backed up on tape Redundant disk copies of L0 data Disk files and tapes verified regularly Additional capacity is planned Technology refresh of L0 servers underway
Archive Capacity Data Years Terabytes 20 100 Free L3 In Use L2 80 15 L1 L0 Years 60 TB 10 40 5 20 0 0 L0 L1 L2 L3 In Use Free Product Level
2008 Distribution Highlights 146 TB Net Volume 10 Million Granules L1: 106.3 TB L1: 2,700,000 L2: 26.4 TB L2: 6,500,000 L3: 0.4 TB L3: 7,000 NRT: 6.6 TB NRT: 500,000 L0: 6.6 TB L0: 100,000 Peak Distribution 1477 distinct network addresses 2 TB/day 50+ different top-level 220,000 granules domains
Data Distribution – Volume 2.5 L0 L1 L2 2 L3 NRT 1.5 TB 1 0.5 0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct
Data Distribution – Granules 250 L0 L1 200 L2 Granules (Thousands) L3 NRT 150 100 50 0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct
Volume (TB) 100 120 20 40 60 80 0 Data Distribution – by Product AIRIBRAD AIRABRAD AIRVBRAD AIRXBCAL AIRX2RET AIRX2SUP AIRI2CCF AIRX3STD AIRX2RET_NRT AIRIBRAD_NRT AIRX2SUP_NRT All Others 0 1 2 3 4 5 6 Granules (Millions)
Data Distribution – by Domain Volume (TB) Granules (Millions) 15.2 2.8 5.2 37.7 5.3 5.3 6.4 1.8 18.4 noaa.gov 1.4 umbc.edu wisc.edu nasa.gov 2.4 37.5 princeton.edu 2.6 25.3 0.3 umich.edu 1.6 ac.jp all others
Services Overview Format conversion Data portals NetCDF for L2, L3 Direct ftp/http L1 soon Mirador Granule and global WHOM browse ECHO OPeNDAP Science support Subsetting ARCTAS Channel CEOP Parameter SO2 Map
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