Digital Government Project Meeting Summary

 

August 07, 2003

3:00 pm in 216 Bolz Hall

RAs only

Appendix A  || Appendix B || Appendix C || Appendix D

 

Attendees

OSU Mapping & GIS Lab: Dr. Ahmed Elaksher and Xutong Niu

OSU Geodesy Lab: Chung-Yen Kuo and Kai-chien (Kevin) Cheng

SUNY at Buffalo: Xian Xu (reported by E-mail)

 

Absentees    

Great Lakes Forecasting System Laboratory: Vasilia Velissariou 

 

 

Summary

    Xutong Niu reported that he is working on using the new software Java 3D for visualizing all the coastal data for the Lake Erie pilot site. Currently, he is still learning how to input all different data. He has finished programming the part for inputting USGS DEM (Appendix A) and is working on inputting the DEM that have been generated by the research team. He also reported that the program now has the zoom in/out and rotate capabilities.

     

    Dr. Elaksher reported about the Tide coordinated problem. He has finished analyzing the effect of water level changes on shoreline position using digital shorelines that are generated by intersecting a WSM with a CTM, (Appendix B). He also reported about processing the FDOT aerial photos for Tampa Bay. He has finished the interior orientation of all required photos in Manatee County (average RMSE is about 0.5 pixel). He also has triangulated all the required aerial photos to be used later for shoreline extraction, (Appendix C).

 

    Xian Xu reported that he finished API for water level so that user now can provide a position and the program will automatically find the nearest gauge station to calculate the average water level for this station given a start and an end time. He is also studying how to convert a .Net component to a COM component. This is needed to convert Rujin’s program since his program is a VB program. VB programs can’t access .Net component directly but needs to access .net component via a wrapper. He tried to export .Net component as COM component so that they are accessible from VB with limited success. Currently, He’s able to export some of Rujin's code to COM. 

 

    Chung Yen reported that he finished computing the MW, MHW and MLLW surfaces for Lake Erie using the water levels provided by the tide gauge stations for 10 years and 20 years, (Appendix D). He also reported that the satellite altimetric data for the T/P satellite is available from August 10, 1992. 

 

    Kai-chien Cheng reported that the ocean tide correction model is not available for Tampa Bay and can NOT be computed for near shore altimetric data.

   

 

Action List

• Center for Mapping:
  • Publishing the erosion awareness system and contacting the GIS department in Lake County to discuss with them the system and get their comments and suggestions on the system in order to improve it.

• OSU Mapping and GIS Lab
  • Dr. Elaksher will work on generating DEM, orthophoto, and instantaneous shoreline for Tampa Bay from the FDOT aerial photos.
  • Dr. Elaksher and Xutong will visit the Painesville area on Monday August 18, 2003 to evaluate the erosion awareness system developed by Tarig Ali.
  • Dr. Elaksher will work on analyzing the effect of water level changes on the instantaneous shorelines in Lake Erie.
  • Xutong Niu will work on inputting the DEM, water surfaces and the instantaneous shorelines in the Java 3D software.
  • Xutong Niu and Xian Xu (from SUNNY at Buffalo) will work on publishing the ODNR system on the internet.

   

•  Great Lakes Forecasting System Laboratory

  ¡       Comparing the results of the altimetry data and the GLFS water surface model. 

  ¡       Analyzing the GLFS water surface model in Lake Erie. 

   

•  Laboratory for Space Geodesy & Remote Sensing

  ¡     Computing the statistics for the differences between the 10- and 20-year water surfaces.

  ¡     Computing the 10-year water surface for Lake Erie using the satellite altimetric data provided by T/P.

•  SUNY at Buffalo:

  ¡      Xian Xu will complete exporting Ruijin's program to COM. 

   

§         Future Meetings:

    o       The next co-PI's and RAs meeting will be held Thursday, August 21, 2003.

    o       The next  RAs only meeting will be held Thursday, September 4, 2003.

 

Attachments

• Appendix A : Screenshot for a DEM Viewed by Java 3D Software
• Appendix B : Effect of Water Level Changes on Shoreline Geometry (separate file) 
• Appendix C : Triangulation of Tampa Bay FDOT Aerial Photos
• Appendix D : Lake Erie Water Surfaces using Tide Gauge Station Data (separate file)

    

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

 

Appendix A : Screenshot for a DEM Viewed by Java 3D Software

 

Appendix C : Triangulation of Tampa Bay FDOT Aerial Photo