930 resultados para Inland waterways


Relevância:

10.00% 10.00%

Publicador:

Resumo:

"April 1977."

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Issued August 1977.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

"November 1977."

Relevância:

10.00% 10.00%

Publicador:

Resumo:

"September 1978."

Relevância:

10.00% 10.00%

Publicador:

Resumo:

"February 1979."

Relevância:

10.00% 10.00%

Publicador:

Resumo:

"General investigation of tidal inlets; a program of research conducted jointly by U.S. Army Coastal Engineering Research Center, Fort Belvoir, Virginia [and] U.S. Army Engineer Waterways Experiment Station, Vicksburg, Mississippi."

Relevância:

10.00% 10.00%

Publicador:

Resumo:

"May 1980."

Relevância:

10.00% 10.00%

Publicador:

Resumo:

This report summarizes the impact of Hurricane Allen (August 1980) on dune configuration, sand accretion or erosion, and changes in the vegetation on north Padre Island. Four experimental foredunes, the result of grass plantings from 1969 to 1973, and an unplanted control section were monitored in 1975-1977 and also in 1981. The 1981 posthurricane data were compared where possilbe, with the previous studies. Foredune elevation surveys were completed in March 1981; accompanying vegetation transects were made in July 1981. Hurrican Allen causes erosion of the dune face of all the experimental dunes, but caused a breach in only one dune. The beach elevations had returned to approximately prehurricane heights by the time the area was resurveyed. The unplanted control dune provided little resistance to waves generated by the storm and a large quantity of sand was deposited inland.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Mode of access: Internet.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Mode of access: Internet.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

"Prepared for U.S. Army Engineer District, Nashville and U.S. Army Engineer District, Louisville."