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High Volume Data Processing. Discussion of NAVO’s PFM CRADA approach. David Fabre. Outline. Data Volumes Data Structures Old Way – GSF Swath editing New Way – PFM Area Based editing Near Future Way – CUBE PFM.
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High Volume Data Processing Discussion of NAVO’s PFM CRADA approach David Fabre
Outline • Data Volumes • Data Structures • Old Way – GSF Swath editing • New Way – PFM Area Based editing • Near Future Way – CUBE PFM
Data Volumes – Deep Water(taken from L. Mayer of UNH – 29th MB Course, Lafayette, LA, 2002) In 3000 meters of water Method Soundings/hr mB/hr Lead Line 1 .000008 Echo Sounder 900 .0072 Multibeam 68,760 10.5 (Average with Backscatter)
Data Volumes – Shallow Water(taken from L. Mayer of UNH – 29th MB Course, Lafayette, LA, 2002) In 100 meters of water Method Soundings/hr mB/hr Lead Line 10 .000008 Echo Sounder 21,600 .1728 EM-100 292,000 2.1 EM-1000 324,000 27.9 (bksctr) EM-3000 1,500,000 79.8 (bksctr) In 5 meters 17,000,000 450 (bksctr)
Data Structures • Generic Sensor Format (GSF) • Time-based, primary key time • Pure File Magic (PFM) • Area-based, primary key area PFM Data Structure
Near Future Way – CUBE PFM • We will edit were multiple possible surfaces are present (hypotheses) instead of “killing dots” • To be covered more thoroughly later by Lindsay Gee and Brian Calder
Conclusion We’d like to make all products from a grid like the Navigation Surface (ex. DBDBV), which should attract different consumers of our data, and keep our GSF in archive for future re-use.