{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T03:49:12Z","timestamp":1760240952117,"version":"build-2065373602"},"reference-count":31,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2019,10,26]],"date-time":"2019-10-26T00:00:00Z","timestamp":1572048000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100005758","name":"Universit\u00e0 Politecnica delle Marche","doi-asserted-by":"publisher","award":["Progetti europei: Premialit\u00e0 e Compensi Incentivanti 2017"],"award-info":[{"award-number":["Progetti europei: Premialit\u00e0 e Compensi Incentivanti 2017"]}],"id":[{"id":"10.13039\/501100005758","id-type":"DOI","asserted-by":"publisher"}]},{"name":"PNRA","award":["PNRA18_00298"],"award-info":[{"award-number":["PNRA18_00298"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Pancake and frazil ice represent an important component of the Arctic and Antarctic cryosphere, especially in marginal ice zones. The retrieval of their thickness by remote sensing is, in general, a difficult task. A processing system was developed and refined by the present authors in the framework of the EU SPICES project; it is meant for routinely deriving ice thickness in frazil-pancake regions using the spectral changes in wave spectra from imagery provided by space-borne Synthetic Aperture Radar (SAR) systems. This methodology was successfully tested in the Beaufort Sea through comparison with ground truth collected during the cruise of the \u201cSikuliaq\u201d in the fall of 2015. In the present study, this technique has been adapted and applied to Antarctic frazil\/pancake icefields using COSMO-SkyMed satellite images. Our retrievals were analyzed and validated through a comparison with co-located in situ observations collected during the 2017 PIPERS cruise in Terra Nova Bay polynya. A broad agreement was found between measured thicknesses and those retrieved from the SAR analysis. Results and statistics presented and discussed in detail in this study represent a step towards the autonomous measurement of pancake icefields in remote areas such as Antarctic coastal polynyas and marginal ice zones.<\/jats:p>","DOI":"10.3390\/rs11212510","type":"journal-article","created":{"date-parts":[[2019,10,28]],"date-time":"2019-10-28T04:44:31Z","timestamp":1572237871000},"page":"2510","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["SAR Pancake Ice Thickness Retrieval in the Terra Nova Bay (Antarctica) during the PIPERS Expedition in Winter 2017"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6406-8715","authenticated-orcid":false,"given":"Giuseppe","family":"Aulicino","sequence":"first","affiliation":[{"name":"Department of Life and Environmental Sciences\u2014DiSVA, Universit\u00e0 Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy"},{"name":"Department of Science and Technology\u2014DiST, Universit\u00e0 degli Studi di Napoli Parthenope, Centro Direzionale Is C4, 80143 Napoli, Italy"}]},{"given":"Peter","family":"Wadhams","sequence":"additional","affiliation":[{"name":"Department of Life and Environmental Sciences\u2014DiSVA, Universit\u00e0 Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7090-1291","authenticated-orcid":false,"given":"Flavio","family":"Parmiggiani","sequence":"additional","affiliation":[{"name":"Department of Satellite Meteorology, ISAC-CNR, Via Piero Gobetti 101, 40129, Bologna, Italy"}]}],"member":"1968","published-online":{"date-parts":[[2019,10,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"4473","DOI":"10.1002\/2015GL063628","article-title":"Relating wave attenuation to pancake ice thickness, using field measurements and model results","volume":"42","author":"Doble","year":"2015","journal-title":"Geophys. Res. Lett."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"2213","DOI":"10.1002\/2017JC013003","article-title":"Pancake Ice Thickness Mapping in the Beaufort Sea from Wave Dispersion Observed in SAR Imagery","volume":"123","author":"Wadhams","year":"2018","journal-title":"J. Geophys. Res. Oceans"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"14414","DOI":"10.1073\/pnas.1906556116","article-title":"A 40-y record reveals gradual Antarctic sea ice increases followed by decreases at rates far exceeding the rates seen in the Arctic","volume":"116","author":"Parkinson","year":"2019","journal-title":"Proc. Natl. Acad. Sci. USA"},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Aulicino, G., Sansiviero, M., Paul, S., Cesarano, C., Fusco, G., Wadhams, P., and Budillon, G. (2018). A New Approach for Monitoring the Terra Nova Bay Polynya through MODIS Ice Surface Temperature Imagery and Its Validation during 2010 and 2011 Winter Seasons. Remote Sens., 10.","DOI":"10.3390\/rs10030366"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"C11","DOI":"10.1029\/2005JC003320","article-title":"Dynamical contrasts between pancake and pack ice, investigated with a drifting buoy array","volume":"111","author":"Doble","year":"2006","journal-title":"J. Geophys. Res. Oceans"},{"key":"ref_6","first-page":"891","article-title":"Dynamic growth of a pancake ice cover","volume":"Volume 2","author":"Shen","year":"1999","journal-title":"Ice in Surface Waters, Proceedings 14th IAHR Ice Symposium, Trondheim, Norway, 14\u201318 June 2020"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"1275","DOI":"10.1016\/S0967-0645(99)00023-5","article-title":"The physical properties of sea ice in the Odden ice tongue","volume":"46","author":"Wadhams","year":"1999","journal-title":"Deep. Sea Res. Part II"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"20170342","DOI":"10.1098\/rsta.2017.0342","article-title":"A fresh look at how ocean waves and sea ice interact","volume":"376","author":"Squire","year":"2019","journal-title":"Philos. Trans. R. Soc. Math. Phys. Eng."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"14535","DOI":"10.1029\/JC092iC13p14535","article-title":"The Ice Thickness Distribution across the Atlantic Sector of the Antarctic Ocean in Midwinter","volume":"92","author":"Wadhams","year":"1987","journal-title":"J. Geophys. Res. Oceans"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"4","DOI":"10.1016\/j.jmarsys.2016.06.013","article-title":"Modelling Sea Ice Formation in the Terra Nova Bay Polynya","volume":"166","author":"Sansiviero","year":"2017","journal-title":"J. Mar. Syst."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"L21302","DOI":"10.1029\/2004GL020785","article-title":"Energetic plumes over the western Ross Sea continental slope","volume":"31","author":"Gordon","year":"2004","journal-title":"Geophys. Res. Lett."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"427","DOI":"10.1017\/S095410200400224X","article-title":"Bottom water production and its links with the thermohaline circulation","volume":"16","author":"Jacobs","year":"2004","journal-title":"Antarct. Sci."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"493","DOI":"10.1017\/S0954102000000572","article-title":"Thermohaline structure and variability in the Terra Nova Bay polynya, Ross Sea","volume":"12","author":"Budillon","year":"2000","journal-title":"Antarct. Sci."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"3368","DOI":"10.1080\/01431161.2018.1541367","article-title":"Image processing for pancake ice detection and size distribution computation","volume":"40","author":"Parmiggiani","year":"2018","journal-title":"Int. J. Remote Sens."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"41","DOI":"10.5194\/tc-13-41-2019","article-title":"Brief communication: Pancake ice floe size distribution during the winter expansion of the Antarctic marginal ice zone","volume":"13","author":"Alberello","year":"2019","journal-title":"Cryosphere"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"1721","DOI":"10.1175\/1520-0485(2002)032<1721:TUOSTM>2.0.CO;2","article-title":"The use of SAR to measure ocean wave dispersion in frazil-pancake icefields","volume":"32","author":"Wadhams","year":"2002","journal-title":"J. Phys. Oceanogr."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"L15305","DOI":"10.1029\/2004GL020340","article-title":"SAR imaging of wave dispersion in Antarctic pancake ice and its use in measuring ice thickness","volume":"31","author":"Wadhams","year":"2004","journal-title":"Geophys. Res. Lett."},{"key":"ref_18","unstructured":"Wadhams, P., Aulicino, G., Parmiggiani, F., and Pignagnoli, L. (2016). Sea Ice Thickness Mapping in the Beaufort Sea Using Wave Dispersion in Pancake Ice\u2014A Case Study with Intensive Ground Truth, European Space Agency Special Publication. ESA SP, SP-740."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"10713","DOI":"10.1029\/91JC00302","article-title":"On the nonlinear mapping of an ocean wave spectrum into a synthetic aperture radar image spectrum and its inversion","volume":"96","author":"Hasselmann","year":"1991","journal-title":"J. Geophys. Res."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"16615","DOI":"10.1029\/96JC00798","article-title":"An improved algorithm for the retrieval of ocean wave spectra from synthetic aperture radar image spectra","volume":"101","author":"Hasselmann","year":"1996","journal-title":"J. Geophys. Res."},{"key":"ref_21","first-page":"509","article-title":"Directional spectra of wind generated waves","volume":"315","author":"Donelan","year":"1995","journal-title":"Philos. R. Soc."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"3497","DOI":"10.1029\/1999JC900282","article-title":"A semiparametric algorithm to retrieve ocean wave spectra from synthetic aperture radar","volume":"105","author":"Mastenbroek","year":"2000","journal-title":"J. Geophys. Res."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"1047","DOI":"10.1109\/36.406690","article-title":"SAR-ocean wave inversion using image cross spectra","volume":"33","author":"Engen","year":"1995","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"7663","DOI":"10.1029\/97JC02966","article-title":"Gravity waves on ice-covered water","volume":"103","author":"Keller","year":"1998","journal-title":"J. Geophys. Res."},{"key":"ref_25","unstructured":"Worby, A.P. (1999). Observing Antarctic Sea Ice: A Practical Guide for Conducting Sea Ice Observations from Vessels Operating in the Antarctic Pack Ice, A CD-ROM Produced for the Antarctic Sea Ice Processes and Climate (ASPeCt) Program of the Scientific Committee for Antarctic Research (SCAR) Global Change (GLOCHANT) Program."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"55","DOI":"10.1146\/annurev.fluid.36.052203.071431","article-title":"Langmuir circulation","volume":"36","author":"Thorpe","year":"2004","journal-title":"Annu. Rev. Fluid Mech."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"3525","DOI":"10.1029\/95JC03282","article-title":"Structure and variability of Langmuir circulation during the surface waves processes program","volume":"101","author":"Plueddemann","year":"1996","journal-title":"J. Geophys. Res."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"135","DOI":"10.1140\/epjp\/i2013-13135-8","article-title":"Wind over Terra Nova Bay (Antarctica) during a polynya event: Eta model simulations and satellite microwave observations","volume":"128","author":"Morelli","year":"2013","journal-title":"Eur. Phys. J. Plus"},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"30","DOI":"10.1016\/j.rse.2016.10.003","article-title":"Dynamics of the Terra Nova Bay Polynya: The potential of multi-sensor satellite observations","volume":"187","author":"Hollands","year":"2016","journal-title":"Remote Sens. Environ."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"2851","DOI":"10.1002\/2017JC013693","article-title":"Quantifying growth of pancake sea ice floes using images from drifting buoys","volume":"123","author":"Roach","year":"2018","journal-title":"J. Geophys. Res. Oceans"},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"8835","DOI":"10.1029\/91JC00457","article-title":"Waves in Frazil and Pancake Ice and Their Detection in Seasat Synthetic Aperture Radar Imagery","volume":"96","author":"Wadhams","year":"1991","journal-title":"J. Geophys. Res."}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/11\/21\/2510\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T13:29:34Z","timestamp":1760189374000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/11\/21\/2510"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,10,26]]},"references-count":31,"journal-issue":{"issue":"21","published-online":{"date-parts":[[2019,11]]}},"alternative-id":["rs11212510"],"URL":"https:\/\/doi.org\/10.3390\/rs11212510","relation":{},"ISSN":["2072-4292"],"issn-type":[{"type":"electronic","value":"2072-4292"}],"subject":[],"published":{"date-parts":[[2019,10,26]]}}}