{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,20]],"date-time":"2026-05-20T02:48:37Z","timestamp":1779245317734,"version":"3.51.4"},"reference-count":37,"publisher":"MDPI AG","issue":"22","license":[{"start":{"date-parts":[[2019,11,16]],"date-time":"2019-11-16T00:00:00Z","timestamp":1573862400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>In recent years, the use of a strapdown Inertial Measurement Unit (IMU) for airborne gravimetry has proven itself to be an accurate and resilient measurement system, improving the operational flexibility. The main concern is erroneous long-wavelength information in the resulting estimates, which is suspected to originate from uncompensated long-term drift of the accelerometers, probably originating from temperature variation. For this reason, iMAR navigation has designed a temperature stabilisation box, which allows for temperature stabilisation of their IMU systems. On a regional airborne gravity survey over the Kattegat Sea between Denmark and Sweden, such a temperature stabilised strapdown IMU was operated alongside a traditional spring-type platform-stabilised gravity system from ZLS. An analysis of the difference in gravity estimates at cross-over locations yielded a mean value of \u22120.3 mGal for the iMAR system with an indicated accuracy of 1.0 mGal. The temperature stabilisation unit therefore effectively limits the accelerometer drift and improves the long-wavelength information. However, a straightforward merging approach, adjusting the line-based mean values of the iMAR estimates to match that of the ZLS estimates, improved the accuracy to 0.8 mGal. This indicates that the long-wavelength information of the stabilised-platform system is still superior to that of the strapdown system.<\/jats:p>","DOI":"10.3390\/rs11222682","type":"journal-article","created":{"date-parts":[[2019,11,18]],"date-time":"2019-11-18T04:31:10Z","timestamp":1574051470000},"page":"2682","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":26,"title":["New Results from Strapdown Airborne Gravimetry Using Temperature Stabilisation"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0906-242X","authenticated-orcid":false,"given":"Tim E.","family":"Jensen","sequence":"first","affiliation":[{"name":"National Space Institute, Technical University of Denmark, 2400 Kongens Lyngby, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Arne V.","family":"Olesen","sequence":"additional","affiliation":[{"name":"Westagard Geo Solutions, 2000 Copenhagen, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rene","family":"Forsberg","sequence":"additional","affiliation":[{"name":"National Space Institute, Technical University of Denmark, 2400 Kongens Lyngby, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Per-Anders","family":"Olsson","sequence":"additional","affiliation":[{"name":"Lantm\u00e4teriet; Swedish Mapping, Cadastre and Land Registry Authority, 80182 G\u00e4vle, Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"\u00d6rjan","family":"Josefsson","sequence":"additional","affiliation":[{"name":"Lantm\u00e4teriet; Swedish Mapping, Cadastre and Land Registry Authority, 80182 G\u00e4vle, Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2019,11,16]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"312","DOI":"10.1007\/BFb0011709","article-title":"An introduction to airborne gravimetry and its boundary value problems","volume":"Volume 65","author":"Rummel","year":"1997","journal-title":"Geodetic Boundary Value Problems in View of the One Centimeter Geoid"},{"key":"ref_2","unstructured":"Geyer, R.A. 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