{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,27]],"date-time":"2026-06-27T16:04:58Z","timestamp":1782576298744,"version":"3.54.5"},"reference-count":25,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2020,10,23]],"date-time":"2020-10-23T00:00:00Z","timestamp":1603411200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"The results presented were co-financed by European Union from the European Regional Development Fund under the 2014-2020 Operational Programme Smart Growth.  The project entitled \u201eDevelopment of technology for acquisition and exploration of gravimetric da","award":["1\/4.1.4\/2018"],"award-info":[{"award-number":["1\/4.1.4\/2018"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>This article presents possible applications of a dynamic gravity meter (MGS-6, Micro-g LaCoste) for determining the dynamic height along the Odra River, in northwest Poland. The gravity measurement campaign described in this article was conducted on a small, hybrid-powered survey vessel (overall length: 9.5 m). We discuss a method for processing the results of gravimetric measurements performed on a mobile platform affected by strong external disturbances. Because measurement noise in most cases consists of signals caused by non-ideal observation conditions, careful attempts were made to analyze and eliminate the noise. Two different data processing strategies were implemented, one for a 20 Hz gravity data stream and another for a 1 Hz data stream. A comparison of the achieved results is presented. A height reference level, consistent for the entire estuary, is critical for the construction of a safe waterway system, including 3D navigation with the dynamic estimation of under-keel clearance on the Odra and other Polish rivers. The campaign was conducted in an area where the accuracy of measurements (levelling and gravimetric) is of key importance for shipping safety. The shores in the presented area of interest are swampy, so watercraft-based measurements are preferred. The method described in the article can be successfully applied to measurements in all near-zero-depth areas.<\/jats:p>","DOI":"10.3390\/s20216044","type":"journal-article","created":{"date-parts":[[2020,10,26]],"date-time":"2020-10-26T03:51:47Z","timestamp":1603684307000},"page":"6044","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Analysis of the Dynamic Height Distribution at the Estuary of the Odra River Based on Gravimetric Measurements Acquired with the Use of a Light Survey Boat\u2014A Case Study"],"prefix":"10.3390","volume":"20","author":[{"given":"Krzysztof","family":"Pyrchla","sequence":"first","affiliation":[{"name":"Faculty of Electronics, Telecommunications and Informatics, Gda\u0144sk University of Technology, 80-233 Gda\u0144sk, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1275-2659","authenticated-orcid":false,"given":"Arkadiusz","family":"Tomczak","sequence":"additional","affiliation":[{"name":"Faculty of Navigation, Maritime University of Szczecin, 70-500 Szczecin, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7942-3644","authenticated-orcid":false,"given":"Grzegorz","family":"Zaniewicz","sequence":"additional","affiliation":[{"name":"Faculty of Navigation, Maritime University of Szczecin, 70-500 Szczecin, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4829-3784","authenticated-orcid":false,"given":"Jerzy","family":"Pyrchla","sequence":"additional","affiliation":[{"name":"Faculty of Civil and Environmental Engineering, Gda\u0144sk University of Technology, 80-233 Gda\u0144sk, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paulina","family":"Kowalska","sequence":"additional","affiliation":[{"name":"Faculty of Civil and Environmental Engineering, Gda\u0144sk University of Technology, 80-233 Gda\u0144sk, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2020,10,23]]},"reference":[{"key":"ref_1","first-page":"570","article-title":"Vertical datum unification for the International Height Reference System (IHRS)","volume":"209","author":"Sideris","year":"2017","journal-title":"Geophys. J. Int."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"141","DOI":"10.3189\/172756409787769717","article-title":"Ground-based gravimetry for measuring small spatial-scale mass changes on glaciers","volume":"50","author":"Breili","year":"2009","journal-title":"Ann. Glaciol."},{"key":"ref_3","first-page":"148","article-title":"Extraction of geoid heights from shipborne GNSS measurements along the Weser River in northern Germany","volume":"5","author":"Lavrov","year":"2016","journal-title":"J. Geod. Sci."},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Pyrchla, K., and Pyrchla, J. (2018, January 21\u201323). The Use of Gravimetric Measurements to Determine the Orthometric Height of the Benchmark in the Port of Gdynia. Proceedings of the 2018 Baltic Geodetic Congress (BGC-Geomatics), Olsztyn, Poland.","DOI":"10.1109\/BGC-Geomatics.2018.00072"},{"key":"ref_5","first-page":"150","article-title":"A Dynamic Height Method for the Determination of Currents in Deep Lakes, Limnol","volume":"1","author":"Ayers","year":"1956","journal-title":"Oceanography"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"92","DOI":"10.3846\/1392-1541.2009.35.92-98","article-title":"Analysis of different height systems along the Sava River","volume":"35","author":"Koler","year":"2009","journal-title":"Geod. Cartogr."},{"key":"ref_7","first-page":"203","article-title":"Wavelet modelling of the gravity field by domain decomposition methods: An example over Japan, Geophys","volume":"184","author":"Panet","year":"2011","journal-title":"J. Int."},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Wang, W., Gao, J., Li, D., Zhang, T., Luo, X., and Wang, J. (2018). Measurements and accuracy evaluation of a strapdown marine gravimeter based on inertial navigation. Sensors, 18.","DOI":"10.3390\/s18113902"},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Jensen, T.E., and Forsberg, R. (2018). Helicopter test of a strapdown airborne gravimetry system. Sensors, 18.","DOI":"10.3390\/s18093121"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"769","DOI":"10.2183\/pjab.86.769","article-title":"Gravity at sea\u2014A memoir of a marine geophysicist\u2014","volume":"86","author":"Tomoda","year":"2010","journal-title":"Proc. Jpn. Acad. Ser. B. Phys. Biol. Sci."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"221","DOI":"10.1080\/01490419.2012.672874","article-title":"Airborne Gravimetry Survey for the Marine Area of the United Arab Emirates","volume":"35","author":"Forsbergbi","year":"2012","journal-title":"Mar. Geod."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"141","DOI":"10.1007\/s11001-014-9216-x","article-title":"Local normal height connection across sea with ship-borne gravimetry and GNSS techniques","volume":"35","author":"Guo","year":"2014","journal-title":"Mar. Geophys. Res."},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Przyborski, M., Pyrchla, J., Pyrchla, K., and Szulwic, J. (2019). MicroGal Gravity Measurements with MGS-6 Micro-g LaCoste Gravimeter. Sensors, 19.","DOI":"10.3390\/s19112592"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"61","DOI":"10.1190\/1.1444530","article-title":"Airborne gravimetry: An investigation of filtering","volume":"64","author":"Childers","year":"1999","journal-title":"Geophysics"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"1059","DOI":"10.1007\/s00190-018-01225-7","article-title":"Shipborne gravimetry in the Baltic Sea: Data processing strategies, crucial findings and preliminary geoid determination tests","volume":"93","author":"Lu","year":"2019","journal-title":"J. Geod."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"23477","DOI":"10.3390\/s150923477","article-title":"An SINS\/GNSS ground vehicle gravimetry test based on SGA-WZ02","volume":"15","author":"Yu","year":"2015","journal-title":"Sensors"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"41","DOI":"10.3846\/20296991.2017.1330771","article-title":"Assessment of marine geoid models by ship-borne GNSS profiles","volume":"43","author":"Varbla","year":"2017","journal-title":"Geod. Cartogr."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"10586","DOI":"10.1002\/2017JB014425","article-title":"Airborne Gravimetry of GEOHALO Mission: Data Processing and Gravity Field Modeling","volume":"122","author":"Lu","year":"2017","journal-title":"J. Geophys. Res. Solid Earth."},{"key":"ref_19","unstructured":"Dehlinger, P. (1978). Marine Gravity, Elsevier."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"178","DOI":"10.1134\/S2075108711030072","article-title":"Modern equipment and methods for gravity investigation in hard-to-reach regions","volume":"2","author":"Krasnov","year":"2011","journal-title":"Gyroscopy Navig."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"181","DOI":"10.1134\/S2075108714030079","article-title":"Operational experience with the Chekan-AM gravimeters","volume":"5","author":"Krasnov","year":"2014","journal-title":"Gyroscopy Navig."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"9","DOI":"10.1016\/S1464-1895(00)00003-X","article-title":"Modelling the geoid and sea-surface topography in coastal areas","volume":"25","author":"Hipkin","year":"2000","journal-title":"Phys. Chem. Earth, Part A Solid Earth Geod."},{"key":"ref_23","unstructured":"Hofmann-Wellenhof, B., and Moritz, H. (2006). Physical Geodesy, Springer Science & Business Media."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"357","DOI":"10.1007\/s40328-016-0174-4","article-title":"Orthometric height connection across sea with ship-borne gravimetry and GNSS measurement along the ship route","volume":"52","author":"Wang","year":"2017","journal-title":"Acta Geod. Geophys."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"57","DOI":"10.1016\/S1464-1895(00)00010-7","article-title":"Geoid model in the Western Mediterranean sea","volume":"25","author":"Sevilla","year":"2000","journal-title":"Phys. Chem. 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