Appendix A | Appendix B | Future Meetings

Attendees:

OSU Mapping & GIS Lab: Dr. Ron Li, Dr. Ahmed F. Elaksher, Ruijin Ma , Xutong Niu
OSU Center for Mapping: Dr. Raul Ramirez, Tarig Ali
OSU Geodesy Lab: Dr. C. K. Shum, Kai-chien (Kevin) Cheng
Great Lakes Forecasting System Laboratory: Dr. Keith Bedford, Vasilia Velissariou

Absentees:

SUNY at Buffalo: Xian Xu (reported by E-mail)
OSU Geodesy Lab: Chung-Yen Kuo

Summary

Dr. Ron Li reported on his meetings at the NOAA Office of Coast Survey.

Vasilia Velissariou reported on the water surfaces she is generating. She completed average water surfaces for the years 1999-2001.

Xutong Niu reported on the data integration assignment. He has started looking through the differences between the gauge-station water levels and the numerically generated water surfaces. Dr. Li suggested the following techniques be used in analyzing the water data:

• 1. To compare water surfaces with tide-gauge stations:
  • a. Use the nearest four points from the water surface and interpolate a value at the gauge station location and then compute the difference.
  • b. For each station, the difference should be computed.
  • c. For all stations, compute the mean, standard deviation, maximum, minimum.
• 2. To compare two different water surfaces:
  • a. Use the differences between the two surfaces at the same location.
  • b. Compute the maximum, minimum, mean, and standard deviation, and generate a histogram and a 3-D graph of the differences.

Tarig Ali made a presentation on his progress in analyzing the Painesville area data (see Appendix B ). Tarig is analyzing the LIDAR DEM profiles in Painesville to predict future shorelines in Painesville.

Kevin reported on the gauge-station water level data (see Appendix A). He computed mean water surfaces using the 15 gauge stations around Lake Erie. Four surfaces are computed to represent the MLLW, MHW, and MLW surfaces for the period 1999-2001.

Ruijin Ma reported on the Tampa Bay data set. The purchase order is ready for the Florida Department of Transportation and will be sent. He is investigating the aerial photos available at NAPP for Tampa Bay. He reported on the assessment of the 3-D IKONOS shoreline. The outlier elevations are either due to mismatches or trees on the shoreline. He started a manual filtering process for the outliners.

Xian Xu reported that in the last two weeks, he decided to develop a new system using ArcObjects. He started familiarizing himself with ArcObjects. The system is now able to connect to ArcSDE server and ArcIMS, as well as accessing some other local ESRI files. These functionalities are provided by ArcObjects.

Action List:

• OSU Mapping & GIS Lab
• Dr. Elaksher will work on the tide coordination problem and start contacting NGS and other agencies to get the required data sets mentioned by Dr. Li.
• Ruijin Ma will work on gathering the Tampa Bay data and complete the 3-D IKONOS shoreline analysis.
• Xutong Niu will design a web page for the research team to download data conveniently. He will also contact Xian Xu to complete the work on the data accessing system. Xutong will complete the data assessment task.

• Center for Mapping
• Tarig Ali will work on the erosion and shoreline prediction systems in Painesville.

• OSU Geodesy Lab
• Chung-Yen Kuo will work on generating the MLW, MLLW, and MHW water surfaces for Lake Erie using the altimetry and gauge station data.

• Great Lakes Forecasting System Laboratory
• Vasilia Velissariou will generate the 5- and 10-year Lake Erie water surfaces.

• SUNY at Buffalo
• Xian Xu will continue generating the remote access system to the infrastructure coastal database using ArcObjects.

• Future Meetings:
• The next RA only meeting will be held Thursday, February 13.
• The next co-PI and RA meeting will be Thursday, February 27.

Attachments:

• Appendix A: Water Surfaces in Lake Erie Generated using Tide-Gauge Stations
• Appendix B: A Method for Shoreline Prediction for the Painesville, Ohio Area by Tarig Ali (PDF file)

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

Appendix A: Water Surfaces in Lake Erie Generated using Tide-Gauge Stations