Accession Number : AD0856481

Title :   Changes in the Vertical Structure of the Waters Above the Rim of the Continental Shelf due to the Influence of Winds (Modificacoes na Estrutura Vertical das Augas Sobre a Borda da Plataforma Continental por Influencia do Vento),

Corporate Author : INTERNATIONAL TRANSLATION CENTER INC WASHINGTON DC

Personal Author(s) : Moreira da Silva, Paulo de Castro ; Rodrigues, Roberto Fernandes

Report Date : 20 JUN 1969

Pagination or Media Count : 17

Abstract : In order to study the relationship between wind variations and the vertical structure of the water (upwelling) and witness the role played by this upwelling in the fertilization of the euphotic zone, the Oceanographic Ship 'ALMIRANTE SALDANHA' was anchored in 22 deg 55.5 min S, 040 deg 52.2 min W in waters reaching a depth of 119 meters. Samples were taken from surface down to the ocean floor for analysis of salt content, chlorophyll, nitrate, nitrite, silicates, dissolved oxygen and phosphate. The following tests were made: bathythermograph reading, measurements of water currents, meteorological observation, water-temperature readings, in addition to the collection of phytoplankton, zooplankton and larvae above and below the thermocline. (Author)

Descriptors :   (*OCEAN CURRENTS, WIND), (*CONTINENTAL SHELVES, OCEANOGRAPHIC DATA), HYDROGRAPHIC SURVEYING, OCEANOGRAPHIC SHIPS, SALINITY, NITRATES, SILICATES, PHOSPHATES, OXYGEN, TEMPERATURE, PLANKTON, CHLOROPHYLLS, BATHYTHERMOGRAPH DATA, THERMOCLINES, BRAZIL.

Subject Categories : Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE