Aplicaciones On Demand

Satellite sets sail to survey saltiness of Earth's oceans

The 12-story rocket escaped the ground-hugging marine layer blanketing the Central Coast, thundering southward to eventually reach a 408-mile-high sun-synchronous orbit and successfully living up to its reputation of dependability.

Built by Argentina, the SAC-D satellite is equipped with multiple scientific instruments from several countries including NASA's Aquarius sensor package designed to make exceptionally precise global measurements of salt content at the ocean surface.

"Measuring ocean surface salinity from space is NASA's latest technology achievement and it's really going to be a great leap forward for the science of oceanography," said Eric Lindstrom, Aquarius program scientist at NASA Headquarters.

"For many of you, salinity is a rather obscure quantity, but I must tell you it's of critical importance in the ocean circulation, in the climate system and in diagnosing the flow of fresh water through our Earth system."

Standing 16.4 feet tall and 9 feet wide within the Delta rocket's protective nose cone, the SAC-D spacecraft weighed 2,977 pounds at launch. The two-stage launcher reached a preliminary parking orbit about 11 minutes after liftoff, then coasted around the South Pole and soared towards Africa when the booster performed a final maneuver to inject the satellite into the desired orbit. Deployment of the payload occurred as expected 56-and-a-half minutes into flight.

NASA has spent $287 million on the Aquarius project, which includes paying for the satellite's launch. A Delta 2 rocket has never faltered in its 48 missions for the space agency over the past two decades.

The large oval antenna reflector and three microwave radiometers at the heart of Aquarius will work like highly sensitive radio receivers to detect variations in the electrical conductivity of seawater, enabling scientists to deduce the ocean salinity levels.

"Salinity is the glue that bonds two major components of Earth's complex climate system: ocean circulation and the global water cycle," said Aquarius principal investigator Gary Lagerloef of Earth & Space Research in Seattle. "Aquarius will map global variations in salinity in unprecedented detail, leading to new discoveries that will improve our ability to predict future climate.

Desayunos de trabajo: CRM On Demand (Oracle Aplicaciones)

Con formato de Desayuno Ejecutivo de trabajo, Madrid y Barcelona estuvieron conectados durante 2 horas para compartir las últimas novedads de CRM On Demand (con la nueva funcionalidad en su módulo de Marketing), el análisis del mercado, de la mano de Birchman, y la  experiencia del cliente Diversey con una implantación de 2000 Usuarios en más de 15 países. Contamos con más de 15 directivos en cada una de las ciudades, quienes pudieron compartir experiencias y hacer networking.

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