Water level monitoring of the Mekong Delta using GNSS reflectometry technique

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Authors

  • J. Beckheinrich
  • A. Hirrle
  • S. Schön
  • G. Beyerle
  • M. Semmling
  • J. Wickert

Research Organisations

External Research Organisations

  • Helmholtz Centre Potsdam - German Research Centre for Geosciences (GFZ)
  • Technische Universität Dresden
View graph of relations

Details

Original languageEnglish
Title of host publication2014 IEEE International Geoscience & Remote Sensing Symposium
Subtitle of host publicationProceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3798-3801
Number of pages4
ISBN (electronic)9781479957750
Publication statusPublished - 6 Nov 2014
EventJoint 2014 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2014 and the 35th Canadian Symposium on Remote Sensing, CSRS 2014 - Quebec City, Canada
Duration: 13 Jul 201418 Jul 2014

Abstract

In the last years extreme flood events occur more frequently in Vietnam. Conventional satellite altimeters offer high altimetric accuracy but with insufficient spatial and temporal resolution. Ground based instrumentation enables a high altimetric accuracy with high temporal resolution, but for a point location only. GNSS-Reflectometry (GNSS-R) reveals new perspectives for water level monitoring. To test the possibility of using this innovative technique as a gauge instrument, a two weeks lasting measurement campaign was conducted in Vietnam, in February 2012. The data analysis showed the presence of multipath effects other than the water level in the direct and the reflected signals that deteriorate the results. Using the Empirical Mode Decomposition method (EMD), the water reflections are isolated from further multipath. With a model of these reflections, a correlation of 0.84 instead of 0.67 between the GNSS-R calculated water level changes and the recorded water level changes from a gauge instrument could be reached. Furthermore, applying EMD improves the standard deviation of the determined water heights from 12cm to 5cm.

Keywords

    Altimetry, Empirical Mode Decomposition, GNSS-Reflectometry, Multipath

ASJC Scopus subject areas

Cite this

Water level monitoring of the Mekong Delta using GNSS reflectometry technique. / Beckheinrich, J.; Hirrle, A.; Schön, S. et al.
2014 IEEE International Geoscience & Remote Sensing Symposium: Proceedings. Institute of Electrical and Electronics Engineers Inc., 2014. p. 3798-3801 6947311.

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Beckheinrich, J, Hirrle, A, Schön, S, Beyerle, G, Semmling, M & Wickert, J 2014, Water level monitoring of the Mekong Delta using GNSS reflectometry technique. in 2014 IEEE International Geoscience & Remote Sensing Symposium: Proceedings., 6947311, Institute of Electrical and Electronics Engineers Inc., pp. 3798-3801, Joint 2014 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2014 and the 35th Canadian Symposium on Remote Sensing, CSRS 2014, Quebec City, Canada, 13 Jul 2014. https://doi.org/10.1109/igarss.2014.6947311
Beckheinrich, J., Hirrle, A., Schön, S., Beyerle, G., Semmling, M., & Wickert, J. (2014). Water level monitoring of the Mekong Delta using GNSS reflectometry technique. In 2014 IEEE International Geoscience & Remote Sensing Symposium: Proceedings (pp. 3798-3801). Article 6947311 Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/igarss.2014.6947311
Beckheinrich J, Hirrle A, Schön S, Beyerle G, Semmling M, Wickert J. Water level monitoring of the Mekong Delta using GNSS reflectometry technique. In 2014 IEEE International Geoscience & Remote Sensing Symposium: Proceedings. Institute of Electrical and Electronics Engineers Inc. 2014. p. 3798-3801. 6947311 doi: 10.1109/igarss.2014.6947311
Beckheinrich, J. ; Hirrle, A. ; Schön, S. et al. / Water level monitoring of the Mekong Delta using GNSS reflectometry technique. 2014 IEEE International Geoscience & Remote Sensing Symposium: Proceedings. Institute of Electrical and Electronics Engineers Inc., 2014. pp. 3798-3801
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