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3 edition of On estimating the basin-scale ocean circulation from satellite altimetry found in the catalog.

On estimating the basin-scale ocean circulation from satellite altimetry

Chang-Kou Tai

On estimating the basin-scale ocean circulation from satellite altimetry

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  • 23 Currently reading

Published by Scripps Institution of Oceanography, National Aeronautics and Space Administration, National Technical Information Service, distributor in La Jolla, CA, [Washington, DC, Springfield, Va .
Written in English

    Subjects:
  • Circulation distribution.,
  • Estimates.,
  • Ocean currents.,
  • Satellite altimetry.,
  • Structural basins.

  • Edition Notes

    Other titlesOn estimating the basin scale ocean circulation from satellite altimetry.
    SeriesNASA contractor report -- NASA CR-182387.
    ContributionsUnited States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Paginationv.
    ID Numbers
    Open LibraryOL15410362M

    Ocean mesoscale mixing linked to climate variability Julius J. M. Busecke1* and Ryan P. Abernathey2 Mesoscale turbulence in the ocean strongly affects the circulation, water mass formation, and transport of tracers. Little is known, however, about how mixing varies on climat e timescales. We present the first time-resolved global. The focus of the presentation is on the application of space data for the development of services within emerging ocean industries while managing the Atlantic. Satellite altimetry. The DUACS DT multi-mission satellite altimetry 68 is here utilized to study the sea-level trends and variability in the North Atlantic and on the European shelves. We use the 1/4° degree monthly mean absolute dynamic topography (the sum of sea-level anomalies and the MDT_CNES/CLS ocean mean dynamic topography Cited by: 5. In this work, we analyze the basin scale patterns of phytoplankton variability at inter-annual, seasonal and intra-annual scales and the associated driving forces in the Mediterranean Sea based on 12 years of concurrent ocean color and altimetry satellites data. The knowledge of the phytoplankton variability and its relation to ocean circulation is.

    Ocean. Sub-mesoscale circulation; Large-scale circulation; Mesoscale circulation; Operational oceanography; Altimetry and phytoplankton; Marine animals; Navigation by area. Atlantic Ocean; Pacific Ocean; Aviso+ Newsletter; Cited scientific publications; Scientific books for more information;.


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On estimating the basin-scale ocean circulation from satellite altimetry by Chang-Kou Tai Download PDF EPUB FB2

Abstract Direct estimation of the absolute dynamic topography from satellite altimetry has been confined to the largest scales (basically the basin scale) owing to the fact that the signal-to-noise Cited by: Estimating the Basin-Scale Ocean Circulation from Satellite Altimetry.

Part I Straightforward Spherical Harmonic Expansion Created Date: 5/2/ PM. Rizos C. () On Estimating the Global Ocean Surface Circulation from Satellite Altimetry.

In: Gower J.F.R. (eds) Oceanography from Space. Marine Science, vol Cited by: 2. Get this from a library. On estimating the basin-scale ocean circulation from satellite altimetry.

[Chang-Kou Tai; United States. National Aeronautics and Space Administration.]. Estimates of oceanic flow are currently made on the basis of space-borne measurements of the sea surface, and monitoring of the ocean interior. Satellite altimetry and acoustic tomography are Cited by: Unfortunately, magnetic signals of ocean circulation are not jet detected from space.

This manuscript proposes to use satellite altimetry as a by‐pass to generate characteristic magnetic time series of the ocean circulation. These characteristic time series On estimating the basin-scale ocean circulation from satellite altimetry book subsequently be.

The incoming and net shortwave radiation (NSW) at the ocean surface can now be estimated from satellite data with a reasonable accuracy (5–10 w/m2) for climate studies.

To determine the surface geostrophic currents (which are proportional to the slope of the dynamic topography) from satellite altimetry, one needs an accurate and independent estimate of the geoid. Cited by: Basin-scale ocean circulation from combined altimetric, tomographic and model data: and monitoring of the ocean interior.

Satellite altimetry and acoustic tomography are complementary for this quality acoustic-tomographic 2 and altimetric 3 data are now available to test the combined power of these technologies for estimating oceanic. Sea-surface height data from satellite altimetry provide a very powerful means of determining the general ocean circulation.

For oceanographic studies in which the absolute sea-surface height is required, one has to use the equipotential height of a geoid model as a reference surface. Mediterranean from satellite altimetry, satellite gravimetry and the ECCO (estimating the circulation and climate of the ocean) model.

ECCO is also used byFeng et al.() to determine trends in the South China Sea. Time series of sea level budgets have been investigated in the Red Sea using Ishii grids (Feng et al.,).Cited by: 8.

Download Citation | Determining Ocean Circulation and Sea Level from Satellite Altimetry: Progress and Challenges | Satellite altimetry has revolutionized oceanography since the early s after Author: Lee-Lueng Fu.

Traditionally thought of as a slowly varying circulation, the overturning has been estimated from hydrographic sections. Using five sections at 26°N, the circulation was found to have slowed by 30% over the period – [Bryden et al., ].Cited by: Now comes the tough question of how much of the discrepancy in degree is due to geoid uncertainties.

According to Marsh et al. (), the uncertainty of GEM-TI up to degree 6 is only cm (effectively cm, ignoring spectral leakage), and cm (effectively cm) if up to degree 8. seafloor bathymetry and ocean circulation. The shape of the ocean's surface is determined by Earth's gravity field. Bumps and wiggles in the time-averaged sea surface height measured by altimetry can tell us where the gravity field is particularly large or small [Sandwell and Smith, On estimating the basin-scale ocean circulation from satellite altimetry book.

In turn, the gravity field has been used to estimate the depth of the ocean. New Methods for Estimating Ocean Eddy Heat Transport Using Satellite Altimetry SHANE R.

KEATING,ANDREW J. MAJDA, AND K. SHAFER SMITH Center for Atmosphere Ocean Science, Courant Institute of Mathematical Sciences, New York University, New York, New York (Manuscript received 27 Junein final form 23 September ) ABSTRACT.

Table ay and buoy pCO 2 measurements from different platforms in the GOM. These surface pCO 2 data were collected at a depth of ≤5 m over all seasons. No satellite data were found for pCO 2 μatm due to the lack of valid satellite measurements in estuaries and nearshore waters.

The corresponding spatial distributions of the surface pCO 2 data are shown in Fig. by: 2. The new level of precision and global coverage provided by satellite altimetry is rapidly advancing studies of ocean circulation. It allows for new insights into marine geodesy, ice sheet movements, plate tectonics, and for the first time provides high-resolution bathymetry for previously unmapped regions of our watery planet and crucial information on the large-scale ocean features on intra 5/5(1).

KEYNOTE: Global Ocean Circulation from Satellite Altimetry: Progress and Future Challenges KEYNOTE: Satellite Altimetry and the Copernicus Marine Service: Status and Perspectives KEYNOTE: Progresses of Altimetry for Marine Ecology: from a. "On Estimating the Basin-Scale Ocean Circulation from Satellite Altimetry", -Pre-print of a paper submitted to J.

Physical Oceanography, 32pp, Tai, C.K., "On generating sea level time series from crossover differences", Marine Geodesy, This is because the responsible orbital errors have left no traces in crossover differences and therefore can never be removed.

However, it is possible to reduce this fundamental uncertainty substantially if the record length is long enough. Its implications on observing the basin-scale ocean circulation by satellite altimetry are discussed. 20 Years of Progress in Radar Altimetry Symposium.

SeptemberVenice, Italy. Abstract Book. Last update: 06/09/ Home» Processes Connecting Coastal to Basin-Scale Ocean Circulation: SW Atlantic Ocean. Here we use the combination of altimetry, scatterometry and satellite salinity fields, along with nested ocean circulation models, to investigate the onshore-offshore transport of water mass and salinity between the shelf and deep ocean in this dynamic.

Ocean surface topography is measured using a satellite altimeter. Satellite altimetry combines precise orbit determination with accurate ranging by a microwave altimeter of the distance of ocean surface to the satellite to determine the ocean surface height relative to known reference surface or the center of the Earth.

Precision orbit determination uses satellite tracking information and. Basin-scale ocean circulation from combined altimetric, tomographic and model data. By D and monitoring of the ocean interior. Satellite altimetry and acoustic tomography are complementary for this purpose1, as the former provides detailed horizontal coverage of the surface, and the latter the requisite vertical sampling of the interior.

Direct estimation of the absolute dynamic topography from satellite altimetry has been confined to the largest scales (basically the basin-scale) owing to the. A Strategy for Active Remote Sensing Amid Increased Demand for Radio Spectrum.

Washington, DC: The National Academies Press. doi: / essential tools for the study of ocean circulation. 18 Satellite altimeters provide very precise measurements of the distance from the satellite to the surface and, coupled with precise orbit.

The satellite altimeters are TOPEX, Jason-1, Jason-2, ERS-1, ERS-2, Envisat, SARAL, and Cryosat. The sea surface height derived from the satellite altimeter has been very useful in the study of the ocean circulation but still is not appropriate for the oceanographic : K.

Mansor, M. Pa’suya, A. Din, M. Abbas, M. Aziz, T. Ali. Domain of the Pacific Ocean model and the number of model layers which reflect the topogra- phy used during the estimation studies.

Vertical extent of layers is,and m (from top to bottom), giving a maximum model depth of m in the center of the by:   Satellite altimetry. The DUACS DT multi-mission satellite altimetry 68 is here utilized to study the sea-level trends and variability in the North Atlantic and on Cited by: 5.

Satellite altimetry opens up new possibilities in the description of the spatial and temporal variability of the frontal zones. Satellite altimetry data were used to analyze the location and dynamics of oceanic fronts in the Sea of Japan (Fuks, ), the Sea of Okhotsk (Fuks, ; Starytzyn, ), the Indian Ocean (Kostianoy et al.,a,b), the South Atlantic Ocean (Golivets and.

Direct estimation of the absolute dynamic topography from satellite altimetry has been confined to the largest scales (basically the basin-scale) owing to the fact that the signal-to-noise ratio is.

The basic theory for predicting seafloor topography from satellite altimeter measurements is summarised in a paper by Dixon et al. The conceptual approach uses the sparse depth soundings to constrain the long-wavelength depth while the shorter-wavelength topography is predicted from the downward-continued satellite gravity measurements [Smith and Sandwell, ].

For technical reasons, the general circulation of the ocean has historically been treated as a steady, laminar flow field. The recent availability of extremely high-accuracy and high-precision satellite altimetry has provided a graphic demonstration that the ocean is actually a rapidly time-evolving turbulent flow field.

To render the observations quantitatively useful for oceanographic Cited by: – for the first time, a precise estimate of the marine geoid, needed for the quantitative determination, in combination with satellite altimetry, of absolute ocean circulation and transport of mass.

– estimates of the thickness of the polar ice sheets through the combination of File Size: KB. relationship has been used to estimate a time series of Kuroshio transport from satellite altimetry data. Despite high lateral velocity shears, WBCs inhibit cross-frontal mixing owing to the strong potential vorticity front across their flow axis and to kinematic steering (Bower et al., ; Beal et al., ).

A daily global mesoscale ocean eddy dataset from satellite altimetry James H. Faghmous, a, 1, 3 Ivy Frenger, 2 Yuanshun Yao, 1 Robert Warmka, 1 Aron Lindell, 1 and Vipin Kumar 1 1 Department of Computer Science, The University of Minnesota—Twin Cities, Minneapolis, MN, USA.

The Ocean Surface Topography Meeting will occur October and will include a variety of science and technical splinters. These will include a special splinter on the Future of Altimetry (chaired by the Project Scientists), a splinter on Coastal Altimetry, and a splinter on the recently launched CFOSAT.

In anticipation of. The temporal and spatial evolution of a deep-reaching anticyclonic eddy (AE) is studied using a combination of satellite measurements, moored observations and ocean model reanalysis data in the South China Sea (SCS).

Three evolutionary stages in eddy’s lifecycle are identified from changes in eddy dynamical characteristics estimated from satellite altimetry: birth (22 days), growth (64 days. Traditional measurements of Earth's gravity field mainly use three techniques. The first one is the terrestrial gravimeter, while the cost is high and the labor work is hard, and furthermore the temporal-spatial resolution is low.

The second one is satellite altimetry, which can estimate the gravity field and geoid over the by: 1. Analyses of in situ ocean temperature data collected over the past 50 years by ships and recently by Argo profiling floats indicate that ocean heat content, and hence ocean thermal expansion, has significantly increased since (Levitus et al.,Ishii and Kimoto,Lymann et al., ).On average, over the satellite altimetry era (), the contribution of thermal expansion.Processes Connecting Coastal To Basin-Scale Ocean Circulation Improved Estimates of Atlantic Meridional Circulation from Altimetry with Tracers, Drifters, Gliders and Argo Floats Studies of Ocean Surface Tides and Internal Tides with Satellite Altimetry.Sincesatellite altimetry has provided an unprecedented 16 years monitoring of sea level and ocean circulation variations.

Continuous measurements from satellites like TOPEX/Poseidon and Jason-1 help us understand and foresee the effects of the changes in ocean circulation on climate and on extreme climate events such as El Niño and La.