Abstract
In order to determine sea surface heights related to a geoid model for the Red Sea area [10° ≤ ϕ ≤ 36° ,26° ≤ λ ≤ 50°] ERS-1 altimeter measurements have been processed. A first analysis based on the data of the 35 day repeat cycle, covering the Red Sea area, is reported.
For the test area a total number of 72 tracks (30 north-going tracks, 42 south-going tracks) including more than 5000 data points with a resulting number of 120 cross-over points were available. In order to improve the quality of the data set (because it contains radial orbit and geoid errors due to the uncertainty of the earth gravity field) a cross-over analysis by using a hybrid norm solution is applied. It contains the combination of cross-over minimization and an a-priori geoid fitting by means of a suitable chosen weighting factor. This analysis is carried out and a root mean square (RMS) of cross-over differences is found equal to 4.2 cm. When we apply a certain weighting factor to minimize the cross-over differences, the value of RMS still remains within the centimeter range, but to optimally match the geoid model the RMS value jumps to decimeter level.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Arabelos, D., S.D. Spatalas, I.N. Tziavos (1992). Altimeter Data from ERS-1 in the Mediterranean Sea. In: Mare Nostrum - GEOMED Report 2, Madrid.
Barzaghi, R., M.A. Brovelli and F. Sansò (1991). Altimetry Rank Deficiency in Crossover Adjustment, Determination of the Geoid, Present and Future. IAG Symposia 106 (R.H. Rapp and F. Sansò eds.), Springer-Verlag, pp. 108–118.
Barzaghi, R., M.A. Brovelli and P. Knudsen (1991). Different crossover analysis methods applied in the Mediterranean area. Bolletmo di Geofisica Teorica ed Applicata, Vol. XXXIII m. 130–131, pp. 121–128.
Fenoglio, L. and E. Groten (1993a). Mean Sea Level Determination in Small Ocean Basins using ERS-1 Altimetry in a Combined Approach. Proceeding Second ERS-1 Symposium - Space at the service of our Environment, Hamburg, Germany, 11–14 October 1993.
Fenoglio, L. and E. Groten (1993b], Application of ERS-1 35 Day Cycle Altimetry Data to Mean Sea Level Determination in Small Ocean Basins. Proceeding Second ERS-1 Symposium - Space at the service of our Environment, Hamburg, Germany, 11–14 October 1993.
Fürst, W., W. Hausleitner, E. Hoeck, W.-D. Schuh and H. Sünkel (1992). Cross-over Adjustment of Satellite Altimeter Data. In: Mare Nostrum - GEOMED Rep. 2, Madrid.
Romay, M., J.M. Dow, R. Piriz. and H. Boomkamp (1993). Global Ocean Tide Mapping and Dynamic Sea Surface Topography Determination Using ERS-1 Altimetry. Proceeding Second ERS-1 Symposium - Space at the service of our Environment, Hamburg, Germany, 11–14 October 1993.
Shum, C. K., B.D. Tapley, B.J. Kozel, P. Visser, J. C. Ries and J. Seago (1993). Precise Orbit Analysis and Global Verification Results from ERS-1 Altimetry. Proceeding Second ERS-1 Symposium - Space at the service of our Environment, Hamburg, Germany, 11–14 October 1993.
Schrama, E.J.O. (1989). The role of orbit errors in processing of satellite altimeter data. Publications on Geodesy, New series, No. 33, Netherlands Geodetic Commission, Delft.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1995 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Elsayed, M.S., Hoeck, E. (1995). First Analysis of ERS-1 Altimeter Data in the Red Sea Area. In: Sünkel, H., Marson, I. (eds) Gravity and Geoid. International Association of Geodesy Symposia, vol 113. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-79721-7_39
Download citation
DOI: https://doi.org/10.1007/978-3-642-79721-7_39
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-59204-4
Online ISBN: 978-3-642-79721-7
eBook Packages: Springer Book Archive