Long term changes in mass balance, which can verify the accuracy of the annual balance measurements can be made using geodetic methods, such as airborne surface profiling or surface remapping. (nichols.edu)
«If the satellite gives us 1000 potential sites from the 25,000 in the UK, we would then use drone reconnaissance to get a richer picture of, say, the wood cover and surface profile,» Terra Recovery co-founder Greg Fitzgerald said last week at a meeting of the UK government's space business advocacy group in London. (newscientist.com)
«Liquid crystal elastomer coatings with programmed response of surface profile ``, Greta Babakhanova, Taras Turiv, Yubing Guo, Matthew Hendrikx, Qi - Huo Wei, Albert P.H.J. Schenning, Dirk J. Broer & Oleg D. Lavrentovich, Nature Communications 9, Article number: 456 (2018), DOI: 10.1038 / s41467 -018-02895-9 (lynceetec.com)