1. Jayant Gupchup Graduate student, Johns Hopkins University Representative Slides

2. Jayant Gupchup, Johns Hopkins Universityhttp://www.cs.jhu.edu/~gupchup Environmental Monitoring

3. Jayant Gupchup, Johns Hopkins Universityhttp://www.cs.jhu.edu/~gupchup Cub Hill [Dec 2008 to Sep 2009]

4. Jayant Gupchup, Johns Hopkins Universityhttp://www.cs.jhu.edu/~gupchup Research and Roles  Manage data collected by our sensors  Provide online access to data and graphs to scientists  http://dracula.cs.jhu.edu/luyf/en/tools/VZTool/ http://dracula.cs.jhu.edu/luyf/en/tools/VZTool/  Research – I: Time synchronization and validation of measurements  Research – II: Exploit spatial and temporal correlation to  Fault detection and gap filling  Optimize data collection subsystem

5. Jayant Gupchup, Johns Hopkins Universityhttp://www.cs.jhu.edu/~gupchup Grazor System Available Online Right now!!!

6. Jayant Gupchup, Johns Hopkins Universityhttp://www.cs.jhu.edu/~gupchup Timestamp Validation: Annual Solar Patterns = f (Latitude, Time of Year)

7. Jayant Gupchup, Johns Hopkins Universityhttp://www.cs.jhu.edu/~gupchup Soil Temperature Dataset [noisy + gappy]

8. Jayant Gupchup, Johns Hopkins Universityhttp://www.cs.jhu.edu/~gupchup Robust Reconstruction [Clustering+PCA+Regression]

9. Jayant Gupchup, Johns Hopkins Universityhttp://www.cs.jhu.edu/~gupchup Top 10 Locations

10. Jayant Gupchup, Johns Hopkins Universityhttp://www.cs.jhu.edu/~gupchup Reconstruction Error vs Locations

11. Jayant Gupchup, Johns Hopkins Universityhttp://www.cs.jhu.edu/~gupchup Questions

12. Jayant Gupchup, Johns Hopkins Universityhttp://www.cs.jhu.edu/~gupchup Life Under Your Feet [LUYF] [LUYF] : http://www.lifeunderyourfeet.org/http://www.lifeunderyourfeet.org/

13. Jayant Gupchup, Johns Hopkins Universityhttp://www.cs.jhu.edu/~gupchup System Architecture [eScience 2008] [eScience 08] : Microsoft eScience Workshop 2008, Indianapolis

14. Jayant Gupchup, Johns Hopkins Universityhttp://www.cs.jhu.edu/~gupchup “Time Reconstruction: Sundial” [EWSN 09] Length of day (LOD) Noon Local NoonGlobal Noon Lts 1 Gts 1 Lts 2 Gts 2 …… …… Lts n Gts n “Anchor Points” argmax lag Xcorr (LOD lts, LOD gts, lag) [EWSN 09] : European Conference on Wireless Sensor Network 2009, Ireland