The latest image of Pacific
Ocean sea surface heights from the NASA / European Ocean Surface Topography Mission / Jason -2 oceanography satellite, dated June 11, 2010, shows that the tropical Pacific has switched from warm to cold during the last few months.
This satellite image of Pacific
Ocean sea surface heights taken by the NASA / European Ocean Surface Topography Mission / Jason -2 oceanography satellite, captured on June 11, 2010, shows that the tropical Pacific has switched from warm (red) to cold (blue) during the last few months, perhaps foreshadowing a transition from El Niño, to La Niña conditions.
This visualization shows side by side comparisons of Pacific
Ocean sea surface height anomalies of what is presently happening in 2015 with the Pacific Ocean signal during the famous 1997 El Niño.
Not exact matches
Four days after its launch on 17 January, the Jason - 3 high - precision
ocean altimetry satellite is delivering its first sea surface height measurement data in near - real time for evaluation by engineers from the Centre National d'Etudes Spatiales (CNES), EUMETSAT, the US National Aeronautics and Space Administration (NASA) and the National Oceanic and Atmospheric Administration (NOAA) and scientists from the international Ocean Surface Topography Science
ocean altimetry satellite is delivering its first
sea surface height measurement data in near - real time for evaluation by engineers from the Centre National d'Etudes Spatiales (CNES), EUMETSAT, the US National Aeronautics and Space Administration (NASA) and the National Oceanic and Atmospheric Administration (NOAA) and scientists from the international Ocean Surface Topography Scienc
surface height measurement data in near - real time for evaluation by engineers from the Centre National d'Etudes Spatiales (CNES), EUMETSAT, the US National Aeronautics and Space Administration (NASA) and the National Oceanic and Atmospheric Administration (NOAA) and scientists from the international
Ocean Surface Topography Science
Ocean Surface Topography Scienc
Surface Topography Science Team.
In the early 1990s the TOPEX (Topography Experiment for
Ocean Circulation) / Poseidon satellite, a joint American - French mission, shot into orbit armed with radar altimeters to measure the
height of the
sea surface.
The movement of water in the
ocean is determined by many factors including tides; winds;
surface waves; internal waves, those that propagate within the layers of the
ocean; and differences in temperature, salinity or
sea level
height.
Other tests indicate that the long - lost peak — now dubbed Kaena volcano — grew from the
sea floor and broke through the
ocean's
surface about 3.5 million years ago, eventually reaching a
height of about 1000 meters above
sea level before it began sinking back into the
sea.
The joint NASA / NOAA / CNES / EUMETSAT Jason - 2 satellite measures
sea surface height, which is especially useful in quantifying the heat stored and released by the
oceans during El Niño years.
Many NASA satellites observe environmental factors that are associated with El Niño evolution and its impacts, including
sea surface temperature,
sea surface height,
surface currents, atmospheric winds and
ocean color.
In the case of ORAS4, this includes
ocean temperature measurements from bathythermographs and the Argo buoys, and other types of data like
sea surface height and
surface temperatures.
SLR satellite data includes things such as the «GIA Adjustment» — which is the amount of SLR that there would have been if the
ocean basin hadn't increased in volume and in the case of this new study, how much higher the
sea surface would have been if it had not been suppressed by the Mount Pinatubo volcanic eruption, another correction for ENSO / PDO «computed via a joint cyclostationary empirical orthogonal function (CSEOF) analysis of altimeter GMSL, GRACE land water storage, and Argo - based thermosteric sea level from 2005 to present», as well as other additions and adjustments — NONE OF WHICH can actually be found manifested in any change to the physical Sea Surface Height.&raq
sea surface would have been if it had not been suppressed by the Mount Pinatubo volcanic eruption, another correction for ENSO / PDO «computed via a joint cyclostationary empirical orthogonal function (CSEOF) analysis of altimeter GMSL, GRACE land water storage, and Argo - based thermosteric sea level from 2005 to present», as well as other additions and adjustments — NONE OF WHICH can actually be found manifested in any change to the physical Sea Surface Height.
surface would have been if it had not been suppressed by the Mount Pinatubo volcanic eruption, another correction for ENSO / PDO «computed via a joint cyclostationary empirical orthogonal function (CSEOF) analysis of altimeter GMSL, GRACE land water storage, and Argo - based thermosteric
sea level from 2005 to present», as well as other additions and adjustments — NONE OF WHICH can actually be found manifested in any change to the physical Sea Surface Height.&raq
sea level from 2005 to present», as well as other additions and adjustments — NONE OF WHICH can actually be found manifested in any change to the physical
Sea Surface Height.&raq
Sea Surface Height.
Surface Height.»
Sea surface heights are influenced by
ocean temperatures and winds, and so in turn reflect the overarching conditions of
ocean regions, including patterns like El Niño and La Niña.
Over the
ocean this includes:
sea surface slope and
surface current, significant wave
height, wind speed and
sea level from radar altimetry at about 10 km resolution:
sea surface temperature under cloud free conditions from the infrared radiometer at about 300 m resolution; chlorophyll a and phytoplankton from the imaging spectrometer under cloud free conditions at about 300 m resolution.
THERE HAS BEEN A WARMING TREND FROM THE 70s THRU THE LATE 90s,... accompanied by other changes tied to a warming trend (record low arctic
sea ice extent & thickness, retreating glaciers, retreating snow lines, warming
ocean surface temps, increases in
sea height, de-alkalinizing
oceans).
The close relationship that exists between the dynamic
height and the mass field of the
ocean allows these two parameters to be used within a two - layer reduced gravity
ocean model to monitor the upper layer thickness (Goni et al., 1996), which is defined in this study to go from the
sea surface to the depth of the 20 °C isotherm.
Several studies have shown that observations of
sea surface height (SSH) are strongly correlated with the thermal structure of the upper
ocean (e.g. Goni et al. 1996; Gilson et al. 1998; Mayer et al. 2001; Willis et al. 2004).
The second is what is termed as «steric change» — a scientific phrase that both identifies
ocean thermal expansion due to warming combined with changes in
ocean salinity, which also impacts
sea surface height.
Recently, Willis (2010) used satellite observations of
sea surface height and sensor buoy observations of velocity, salinity and temperature of the Atlantic
Ocean at 41oN and found no significant change in the AMOC strength between 2002 and 2009.
http://onlinelibrary.wiley.com/doi/10.1002/jgrc.20268/abstract Northern North Atlantic
sea -
surface height and
ocean heat content variability Altimetric SSH is dominated by an increase of about 14 cm in the Labrador and Irminger
Seas from 1993 to 2011, while the opposite has occurred over the Gulf Stream region over the same time period.
Scientists from the U.S. National Aeronautics and Space Administration (NASA) and DOE made satellite observations, which included
sea surface height changes alongside data of
ocean temperatures accumulated from 1970 to 2004.
McGregor, S., Sen Gupta, A. & England, M. H. Constraining wind stress products with
sea surface height observations and implications for Pacific
Ocean sea - level trend attribution.
The altimeter measures
sea surface height by bouncing radar signals off the
ocean and timing their echo.
The
sea -
surface height measurements begun by TOPEX / POSEIDON satellite in 1992 and now carried on by Jason provide an unprecedented 13 - year - long record of consistent, continuous global observations of Earth's
oceans.
Current climate conditions trends and averages:
Oceans:
Sea Level Rise (SLR),
Sea Surface Temperature (SST),
Sea Surface Temperature Anomalies (SSTA),
Sea Surface Height (SSH),
Sea Surface Salinity (SSS).