Attendees:

Summary:

Xutong Niu made a presentation on his multi-source data analysis (see Appendix A ). He calculated the differences between the water surfaces generated by the Great Lakes Forecasting System Lab and those generated by the Geodesy Lab.

Ruijin Ma made a presentation on the results of the 3-D shoreline extraction from the aerial photographs in Lake Erie (see Appendix B ). He reported that he has new, actual case data for the structure permit system he is developing in Lake Erie.

Tarig Ali has received the parcel data for Painesville. He is working on cloning his erosion system for the Painesville area. He is also working on visualization techniques to visualize the quality metrics in 2-D and 3-D. He has developed an audio technique that will generate for each metric a beep that is proportional to the metric value.

Chung-Yen Kuo looked for additional altimetry tracks in Lake Erie, but did not find any more tracks in the geodesy lab database. He also looked for tracks in the lake taken in 2002. He found that the 2002 tracks overlap with older tracks.

Vasilia Velissariou reported on the comparison between the 1-hour and the 10-minute time interval-generated water surfaces. She presented the following differences:

• MWL: the majority of the differences are between 0.04cm to 0.03cm (max. 0.2cm).
• MHWL: the majority of the differences are above 1cm (max. 5cm).
• MLLW: the majority of the differences are in the range of 0.5cm to 0.1cm (max. 0.2cm)

Xian Xu has finished a working version of the http and ftp download programs. Currently he is using a free program named "wget" to do the actually downloading while his program is a wrap-around to it that provides a program API for the other parts of the download system. Currently the program is supporting ftp and/or http download of a single file, as well as FTP ftp 'globbing'.

Dr. Ahmed Elaksher presented part of the work he is doing on the tide-coordination problem. To start, he is using only the instantaneous shorelines to study the relationship between time and the shoreline geometry.

Action List:

• OSU Mapping & GIS Lab
• Xutong Niu will work on designing a 3-D visualization tool for the differences in the coastal model data sets.
• Ruijin Ma will work on visualizing the 3-D IKONOS shoreline to represent the elevation differences. At the next meeting, Ruijin Ma will present part of his demo that will be presented at the next DG conference.
• Dr. Elaksher will work on the tide-coordination problem.

• Center for Mapping
• Tarig Ali will work on the shoreline prediction system in Painesville. He will also work on developing visualization methods in 2-D and 3-D that combine the effects of all four metrics.

• OSU Geodesy Lab
• Chung-Yen Kuo will work on investigating the differences between the altimetry data and the gauge station data.

• Great Lakes Forecasting System Laboratory
• Vasilia Velissariou will complete the runs of the numerical water model program using a time interval of 10 minutes.

• SUNY at Buffalo
• Xian Xu will work on integrating his download part with Niu's display.

• Future Meetings:
• The next RA and co-PI meeting will be Thursday, March 27
• The next RA only meeting will be held Thursday, April 10

• Appendix A: Multi-source Data Analysis , presentation by Xutong Niu (separate file)
• Appendix B: 3-D Shoreline from Aerial Photographs , presentation by Ruijin Ma (separate file)

For more information, email: li.282@osu.edu