Digital Government Project Meeting Summary

October 10, 2002
1:30 pm in 230 Bolz Hall
RAs only
Appendix A | Appendix B | Appendix C | Appendix D | Future Meetings

Attendees:

OSU Mapping & GIS Lab: Dr. Ron Li (PI), Dr. Ahmed Elaksher, Ruijin Ma, Xutong Niu
OSU Geodesy Lab: Kai-chien (Kevin) Cheng (reported by E-mail), Hari N. Sugavanam, Chung-Yen Kuo
Great Lakes Forecasting System Laboratory: Takis Velissariou
SUNY at Buffalo: Xian Xu (reported by E-mail)

Absentees:

OSU Center for Mapping: Tarig Ali
Summary:

Hari Sugavanam reported that he has been trying with Ahmed to register the ASTER images. He is using PCI software and has had some difficulties in the registration. Dr. Li asked him to use the GPS ground control points and do more investigation on the camera model and the software. Hari also reported that the SRTM for Lake Erie is provided only through spatial request. Dr. Li asked him to go ahead and order the data.

Chung-Yen Kuo reported that he has computed the MHW and MLLW for four gauge stations in Tampa Bay. The computed water levels are in the NAVD88 coordinate system (see Appendix A). The water level in Port Manatee had a large difference. Dr. Li asked him to ask the local agencies if the gauge device had been changed. There were also gaps in the data in some stations that need to be investigated. Dr. Li asked him to contact Melvin McCray about the gauge station data. Chung-Yen reported that he has had some problems in converting the mean water surface from T/P to NAVD88. The geoid undulation is temporary unavailable. Dr. Li asked Chung-yen to look for ERS tracks closer to the bay. Dr. Li asked Chung-Yen to look for another station located in the north part of the Bay to examine the difference from other stations. Chung-Yen mentioned that there is no buoy data for the Tampa Bay site. Dr. Li asked him to do more investigation on the water surface results and compare the differences between different gauge stations and the altimetry data. He also asked him to look at how the water surface behaves inside and outside the bay and how this is related to the earth crust rebound.

Dr. Li mentioned that we have a 10-year hindcast water surface grid of (2km x 2km) that was generated by Sean O’Neal in Lake Erie. He mentioned that we need a smaller grid in Painesville. He also mentioned that we need a five-year forecasting water surface in the same area after the 19-year hindcast water surface is done.

Ruijin Ma reported that he is working on getting the IKONOS images for the Tampa Bay site. He found images for the study area in the Space Imaging, Inc. archive. He also calculated the shoreline length. He will contact local agencies on the site visit to see which area is the best for the erosion study. Ruijin is done with the 3D shading view of the structures in the ODNR system. He also checked the DLG for shoreline extraction in Tampa Bay: the shoreline in the bay area is fragmented. He also downloaded the T-sheets for the shoreline (see Appendix B). The data is in raster format. Dr. Li asked if Ruijin could get the vector shoreline from CSC.

Kevin Cheng reported by E-mail that he has sent the GPS point descriptions to Hari.

Xutong Niu reported that he downloaded the DOQQ, SRTM, and DLG data for Tampa Bay. He also worked on the data inventory system and it is now working.

Xian Xu reported by E-mail that he has acquired MapObject and ArcGIS 8. He has designed the graphical interface for our research program (see Appendix C).

Ahmed Elaksher reported that he has contacted local people in Painesville to get 2000 aerial photos and LIDAR data. He also contacted Kim Yates to arrange for the Tampa Bay site visit. Ahmed gave a presentation in the end of the meeting about the project objectives and the role of each group in the project (see Appendix D). Dr. Li mentioned that we need to do more work on the coastal geospatial information infrastructure. He also mentioned that more work is needed on publishing a journal paper.
 

Action List:

Attachments
For more information, E-mail: li.282@osu.edu
 

Appendix A: MHW and MLLW Calculations in
Port Manatee, St. Petersburg, Old Port Tampa, and McKay Bay Entrance
in NAVD88 (meters) - Click on charts for full-size images


Port Manatee

NORTH AMERICAN VERTICAL DATUM-1988 (NAVD) = 0.530 m

W.R.T. MLLW Mean = 1.0566 m with std = 1.0138 m
MHHW = 1.3619 m with std = 1.0055 m
MHW = 1.3536 m with std = 1.0055
MLLW = 0.7205 m with std = 0.9947m
W.R.T. NAVD88 Mean = 0.5266 m
MHHW = 0.8319 m
MHW = 0.8236 m
MLLW = 0.1905m
St. Petersburg

NORTH AMERICAN VERTICAL DATUM-1988 (NAVD) = 0.504 m

W.R.T. MLLW Mean = 0.4275 m std = 0.2464 m
MHHW = 0.7489 m std = 0.1527 m
MHW = 0.7409 m with std = 0.1522 m
MLLW = 0.0640m std = 0.1479 m
W.R.T. NAVD88 Mean = -0.0765 m
MHHW = 0.2449 m
MHW = 0.2369 m
MLLW = -0.44 m
Old Port Tampa

NORTH AMERICAN VERTICAL DATUM-1988 (NAVD) = 0.526 m
(The value is average of the other three stations)

Mean = 0.4586 m std = 0.2529 m
MHHW = 0.8065 m std = 0.1545 m
MHW = 0.7982 m with std = 0.1538
MLLW = 0.0840 m std = 0.1391 m
W.R.T. NAVD88 Mean = -0.0674 m
MHHW = 0.2805 m
MHW = 0.2722 m
MLLW = -0.4420 m
McKay Bay Entrance

NORTH AMERICAN VERTICAL DATUM-1988 (NAVD) = 0.543 m

W.R.T. MLLW Mean = 0.5998 m with std = 0.3348 m
MHHW = 0.9653 m with std = 0.2626 m
MHW = 0.9549 m with std = 0.2623 m
MLLW = 0.1832 m with std = 0.2494 m
W.R.T. NAVD88 Mean = 0.0568 m
MHHW = 0.4223 m
MHW = 0.4119 m
MLLW = -0.3598 m
 
Appendix B: T-Sheets for Tampa Bay
Map No.
Year
Scale
Project
State
TP00971
1977
10000
CM-7715
FL
TP00972
1977
10000
CM-7715
FL
TP00973
1977
10000
CM-7715
FL
TP00974
1977
10000
CM-7715
FL
TP00975
1977
10000
CM-7715
FL
TP00976
1977
10000
CM-7715
FL
TP00977
1977
10000
CM-7715
FL
TP00978
1977
10000
CM-7715
FL
TP00979
1977
10000
CM-7715
FL
TP00980
1977
10000
CM-7715
FL
TP00981
1977
10000
CM-7715
FL
TP00982
1977
10000
CM-7715
FL
TP00983
1977
20000
CM-7715
FL
TP00984
1977
10000
CM-7715
FL
TP00985
1977
10000
CM-7717
FL
TP00986
1977
10000
CM-7717
FL
TP00987
1977
10000
CM-7717
FL
TP00988
1977
10000
CM-7717
FL
TP00989
1977
10000
CM-7717
FL
TP00990
1977
10000
CM-7717
FL
TP00991
1977
10000
CM-7717
FL
TP00992
1977
10000
CM-7717
FL
TP00966
1976
20000
CM-7612
FL
TP00967
1976
20000
CM-7612
FL
TP00968
1976
20000
CM-7812
FL
TP00969
1976
20000
CM-7612
FL
TP00970
1976
10000
CM-7715
FL

 

Appendix C: Graphical Interface for the Digital Government Project by Xian Xu

Graphical Interface