Current State of Art of Satellite Altimetry

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One of the fundamental problems of modern geodesy is precise definition of the gravitational field and its changes in time. This is essential in positioning and navigation, geo-physics, geodynamics, oceanography and other sciences related to the climate and Earth’s environment. One of the major sources of gravity data is satellite altimetry that provides gravity data with almost 75% surface of the Earth. Satellite altimetry also provides data to study local, regional and global geophysical processes, the geoid model in the areas of oceans and seas. This technique can be successfully used to study the ocean mean dynamic topography. The results of the investigations and possible products of altimetry will provide a good material for the GGOS (Global Geodetic Observing System) and institutions of IAS (International Altimetry Service).

This paper presents the achievements in satellite altimetry in all the above disciplines obtained in the last years.

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[2] Andersen O. B., Cheng Y., Long term changes of altimeter range and geophysical corrections at altimetry calibration sites, ‘Advances in Space Research’, 2013, Vol. 51, Issue 8, pp.1468–1477.

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[7] Bosch W., Dettmering D., Schwatke C., Multi-mission cross-calibration of satellite altimeters: constructinga long-term data record for global and regional sea level change studies, ‘Remote Sensing’, 2014, Vol. 6, pp. 2255–2281.

[8] Bosch W., Savcenko R., Dettmering D., Schwatke C., A two decade time series of eddy-resolving dynamic ocean topography (iDOT), Proceedings ‘20 Years of Progress in Radar Altimetry’, Sept. 2012, Venice, Italy, ESA SP-710 [CD-ROM], ESA/ESTEC, 2013.

[9] Cheng Y., Andersen O. B., A new global ocean tide model and its improvements in shallow water and the Polar Regions, ‘Advances in Space Research’, 2012, Vol. 50, pp. 1099–1106.

[10] Deng X., Andersen O. B., Cheng Y., Stewart M. G., Gharineiat Z., Estimation of extreme sea levels from altimetry and tide gauges at the coast, 6th Coastal Altimetry Workshop, Riva Del Garda, Italy, 20–21 September 2012.

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[12] Gharineiat Z., Deng X., Application of the Multi Adaptive Regression Splines to integrate sea level data from altimetry and tide gauges for monitoring extreme sea level events, Marine Geodesy, 2015.

[13] Hwang C., Chang E. T. Y., Seafloor secrets revealved, ‘Science’, 2014, Vol. 346, No. 6205, pp. 32–33.

[14] Hwang, C, Hsu H. J., Chang E. T. Y., Featherstone W. E., Tenzer R., Lien T. Y., Hsiao Y. S., Shih H. C., Jai P. H., New free-air and Bouguer gravity fields of Taiwan from multiple platforms and sensors, ‘Tectonophysics’, 2014, Vol. 61, pp. 83–93.

[15] Idris N. H., Deng X., The retracking technique on multi-peak and quasi-specular waveforms for Jason-1 and Jason-2 mission near the cost, ‘Marine Geodesy’, 2012, 35(S1), pp. 217–237.

[16] Knudsen P., Bingham R., Andersen O., Rio M. H., A global mean dynamic topography and ocean circulation estimation using a preliminary GOCE gravity model, ‘Journal of Geodesy’, 2011, Vol. 85, pp. 861–879.

[17] Lee H. K., Shum C. K., Tseng K. H., Huang Z., Sohn H. G., Elevation changes of Bering Glacier System, Alaska, from 1992 to 2010, observed by satellite radar altimetry, ‘Remote Sensing of Environment’, 2013, Vol. 132, pp. 40–48.

[18] Mayer-Gürr T., Savcenko R., Bosch W., Daras I., Flechtner F., Dahle Ch., Ocean tides from satellite altimetry and GRACE, ‘Journal of Geodynamics’, 2012, Vol. 59–60, pp. 28–38.

[19] Richter A., Mendoza L., Perdomo R., Hormaechea J. L., Savcenko R., Bosch W., Dietrich R., Pressure tide gauge records from the Atlantic shelf off Tierra del Fuego, southernmost South America, ‘Continental Shelf Res.’, 2012, Vol. 42, pp. 20–29.

[20] Savcenko R., Bosch W., EOT11a — Empirical Ocean Tide Model From Multi-Mission Satellite Altimetry, ‘DGFI Report’, 2012, No. 89.

[21] Singh A., Seitz F., Schwatke C., Inter-annual water storage changes in the Aral Sea from multi-mission satellite altimetry, optical remote sensing, and GRACE satellite grawimetry, Elsevier, ‘Remote Sensing of Environment’, 2012, Vol. 123, pp. 187–195.

[22] Stammer D., Ray R. D., Andersen O. B., Arbic B. K., Bosch W., Carrère L., Cheng Y., Chinn D. S., Dushaw B. D., Egbert G. D., Erofeeva S. Y., Fok H. S., Green J. A. M., Griffiths S., King M. A., Lapin V., Lemoine F. G., Luthcke S. B., Lyard F., Morison J., Müller M., Padman L., Richman J. G., Shriver J. F., Shum C. K., Taguchi E., Yi Y., Accuracy assessment of global barotropic ocean tide models, ‘Reviews of Geophysics’, 2014, Vol. 52, Issue 3, pp. 243–282.

[23] Sulistioadi Y., Tseng, K. Shum C., Hidayat H., Sumaryono M., Suhardiman A., Sunarso S., Satellite radar altimetry for monitoring small rivers and lakes in Indonesia, ‘Hydrology and Earth System Sciences’, 2015, Vol. 19, Issue 1, pp. 341–359.

[24] Tseng K. H., Shum C., Yi Y., Lee H., Cheng X., Wang X., Envisat Altimetry Radar Waveform Retracking of Quasi-Specular Echoes Over Ice-Covered Qinghai Lake, ‘Terrestrial Atmospheric and Oceanic Sciences’ (TAO), 2013, Vol. 24, No. 4, Part I, pp. 615–627.

[25] Wang X. W., Cheng X., Gong P., Shum C., Holland D. M., Li X. W., Freeboard and mass extraction of the disintegrated Mertz Ice Tongue with remote sensing and altimetry data, Remote Sensing of Environment, 2014, Vol. 144, pp. 1–10.

[26] Yang Y., Hwang C., Hsu H. J., D E Wang H., A sub-waveform threshold retracker for ERS-1 altimetry: a case study in the Antarctic Ocean, ‘Computers & Geosciences’, 2011, Vol. 54, No. 1, pp. 113–118.

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