@article{fdi:010082197,
  title = {{S}atellite optical imagery in coastal engineering},
  author = {{T}urner, {I}. {L}. and {H}arley, {M}. {D}. and {A}lmar, {R}afa{\¨e}l and {B}ergsma, {E}. {W}. {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}his {S}hort {C}ommunication provides a {C}oastal {E}ngineering perspective on present and emerging capabilities of satellite optical imagery, including real-world applications that can now be realistically implemented from the desktop. {S}ignificantly, at the vast majority of locations worldwide, satellite remote sensing is currently the only source of information to complement much more limited in-situ instrumentation for land and sea mapping, monitoring and measurement. {L}ess well recognised is that publicly available, routinely sampled and now easily accessible optical imagery covering virtually every position along the world's coastlines already spans multiple decades. {I}n the past five years the common obstacles of (1) limited access to high-performance computing and (2) specialist remote sensing technical expertise, have been largely removed. {T}he emergence of several internetaccessible application programming interfaces ({API}s) now enable applied users to access petabytes of satellite imagery along with the necessary tools and processing power to extract, manipulate and analyse information of practical interest. {F}ollowing a brief overview and timeline of civilian {E}arth observations from space, satellitederived shorelines ({SDS}) and satellite-derived bathymetry ({SDB}) are used to introduce and demonstrate some of the present real-world capabilities of satellite optical imagery most relevant to coastal professionals and researchers. {T}hese practical examples illustrate the use of satellite imagery to monitor and quantify both engineered and storm-induced coastline changes, as well as the emerging potential to obtain seamless topo/bathy surveys along coastal regions. {S}ignificantly, timescales of satellite-derived changes at the coast can range from decades to days, with spatial scales of interest extending from individual project sites up to unprecedented regional and global studies. {W}hile we foresee the uptake and routine use of satellite-derived information becoming quickly ubiquitous within the {C}oastal {E}ngineering profession, on-ground observations are - and in our view will remain - fundamentally important. {C}ompared to precision in-situ instrumentation, present intrinsic limitations of satellites are their relatively low rates of revisit and decimetre spatial accuracy. {N}ew satellite advances including 'video from space' and the potential to combine {E}arth observation with numerical and datadriven coastal models through assimilation and artificial intelligence are advances that we foresee will have future major impact in {C}oastal {E}ngineering.},
  keywords = {{R}emote sensing ; {S}atellite optical imagery ; {S}atellite-derived shorelines ({SDS}) ; {S}atellite-derived bathymetry ({SDB}) ; {S}tereoscopy ; {E}arth observation ; {G}oogle earth engine},
  booktitle = {},
  journal = {{C}oastal {E}ngineering},
  volume = {167},
  numero = {},
  pages = {103919 [8 p.]},
  ISSN = {0378-3839},
  year = {2021},
  DOI = {10.1016/j.coastaleng.2021.103919},
  URL = {https://www.documentation.ird.fr/hor/fdi:010082197},
}