Sea Surveyor, Inc
MARINE SURVEYS
SINCE 1985

 

 

Precision marine surveys for the engineering community

 

 

Publications


Publications

Abstracts

  • Surveying Amazon River Tributaries for Tug and Barge Navigation. 2004
    Surveying Amazon River Tributaries for Tug and Barge Navigation.
  • English: The Peru Navy commissioned Sea Surveyor to conduct a hydrographic survey of the Amazon River for a new 1,250-mile ship channel from Iquitos to natural gas fields high in the Andes Mountains. The hydrographic survey mapped the final 300-miles of the longest continuous navigation channel on Earth and created electronic maps that allow shallow-draft tugs and barges to transport construction materials upriver during as much of the year as possible. The hydrographic survey was the first to map the lower Urubamba River, a major Amazon tributary. This paper describes the methods used to accomplish the hydrographic survey and summarizes the results.
  • Levanamiento De Los Afluentes Del Rio Amazonas Para La Navegacion.
    Levanamiento De Los Afluentes Del Rio Amazonas Para La Navegacion.
  • Español: La Marina de Guerra del Perú nombró un levantamiento hidrográfico del sistema del Río Amazonas para determinar un nuevo canal de navegación de 2,000 km desde Iquitos hacia los campos de gas natural en las laderas del este de las montañas de los andes. El levantamiento hidrográfico trazó una carta de 500 km de la continuación del canal de navegación en la tierra y creo cartas electrónicas que permiten la navegación de pequeñas embarcaciones en la actividad del transporte de materiales de construcción río arriba durante la mayor parte del año como sea posible. La inspección hidrográfica fue la primera en hacer una carta de la parte baja del río Urubamba, un gran afluente del río Amazonas. Este informe describe los métodos usados para cumplir la inspección hidrográfica y resume los resultados.
  • Hydrographic Survey of South San Francisco Bay. 2006
    Hydrographic Survey of South San Francisco Bay.
  • This report describes the equipment, personnel, and QC procedures used for a hydrographic survey of South San Francisco Bay in support of the South Bay Salt Pond Restoration Project. The 2005 hydrographic survey is the sixth survey of South Bay conducted at approximate 30-year intervals. The survey area includes South San Francisco Bay, Coyote Creek, and 4 sloughs; Alviso, Artesian, Mud, and Ravenswood. The hydrographic survey was funded by the State of California and conducted by Sea Surveyor with technical support from NOAA and NGS. The hydrographic survey mapped 97 square miles of South San Francisco Bay and 22-miles of sloughs at 100m cross-sectional intervals.
  • Geophysical Survey of Hazardous Rocks in Central San Francisco Bay. 2001
    Geophysical Survey of Hazardous Rocks in Central San Francisco Bay.
  • This report presents the results and conclusions from a marine geophysical survey conducted by Sea Surveyor for the U.S. Army Corps of Engineers of 5 underwater geologic features located near the ship navigation lanes in Central San Francisco Bay. The underwater geologic features are bedrock outcrops known as Blossom Rock, Harding Rock, Shag Rocks, and Arch Rock. These underwater rocks extend above -40′ MLLW and pose a potential hazard to deep draft shipping. The fifth site surveyed by this geophysical investigation is a underwater sand dune originally called Unnamed Rock, but the name Golden Gate Mound is proposed as more appropriate.
  • Cover
    San Diego Regional Beach Sand Project
  • In 1999 Sea Surveyor conducted hydrographic, geophysical, and vibracore surveys at 10 offshore borrow sites in San Diego County.  The objective of the offshore borrow site investigation is to locate the most-suitable beach sand within the 10 borrow sites and compute the volume of beach replenishment material contained within each site.  This report describes the field survey methods that mapped the 10 offshore borrow sites using differential GPS navigation, side-scan sonar, marine magnetometer, 2 types of subbottom profilers, and a survey-grade depthfinder.  After interpreting the geophysical data, 125 sediment core samples of nominal 20’ length were collected using an ALPINE vibracore.  Each core sample was logged, photographed, subsampled and archived.  Subsamples from the vibracores were analyzed for grain-size, lithology, and chemical constituents.  Final maps show the location and volume of suitable beach replenishment material contained in each of the 10 offshore borrow sites.
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