Development of a nowcast/forecast system for Galveston Bay

Simple item page
dc.acquisition-srcDownloaded from-Engineering Village 2en_US
dc.call-noen_US
dc.contract-noen_US
dc.contributor.authorSchmalz RAen_US
dc.contributor.otheren_US
dc.date.accessioned2010-02-15T17:16:25Z
dc.date.available2010-02-15T17:16:25Z
dc.date.issued1997en_US
dc.degreeen_US
dc.description441-455en_US
dc.description-otheren_US
dc.description.abstractThe National Oceanic and Atmospheric Administration installed a Physical Oceanographic Real Time System (PORTS) in June 1996 in Galveston Bay. Water surface elevation, currents at prediction depth (4.6 m) as well as near-surface and near-bottom temperature and salinity, and meteorological information are available at six-minute intervals. To complement the PORTS a nowcast/forecast system is being developed using the Blumberg-Mellor (1987) three-dimensional hydrodynamic model. The model has been applied to Galveston Bay in support of a Differential Global Positioning System hydrographic survey (Schmalz, 1996). Herein, the grid system, boundary and initial conditions and results of the astronomical tide calibration for May 1995 will be initially reviewed. To enable a robust nowcast/forecast capability the model has been extended to include drying/wetting, and a flux corrected transport scheme to treat the large horizontal salinity gradients. The numerical algorithms for both of these extensions will be presented along with results obtained with the extended model for three one month hindcasts. Simulated water level results for the October 1994 flood and January 1995 'Northers' will first be presented, followed by simulated water level and current results for the April 1996 PORTS test period. For April 1996, results will also be presented for a one-way coupled fine resolution Houston Ship Channel model. In concert with the hindcast results, an initial nowcast/forecast system has been designed and a preliminary evaluation of system forecast inputs conducted. In conclusion, the hindcast results, initial nowcast/forecast system design, and evaluation of system inputs are reviewed and plans for additional experiments are discusseden_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.historyen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/23347
dc.latitudeen_US
dc.locationen_US
dc.longitudeen_US
dc.notesCompilation and indexing terms, Copyright 2004 Elsevier Engineering Information, Incen_US
dc.placeAlexandria, VA, USAen_US
dc.publisherASCE, Reston, VA, USAen_US
dc.relation.ispartofseries50951.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesProceedings of the International Conference on Estuarine and Coastal Modelingen_US
dc.subjectFloodsen_US
dc.subjectForecastingen_US
dc.subjectHydrodynamicsen_US
dc.subjectHydrographic surveysen_US
dc.subjectMeteorologyen_US
dc.subjectOceanographyen_US
dc.subjectSaline wateren_US
dc.subjectThree dimensionalen_US
dc.subjectTidesen_US
dc.subjectWateren_US
dc.subjectWater levelsen_US
dc.titleDevelopment of a nowcast/forecast system for Galveston Bayen_US
dc.typeCONFen_US
dc.universityen_US
dc.vol-issue()en_US

Files

Collections

Galveston Bay Bibliography
GBIC Abstracts (full text not available through Jack K. Williams Library)