{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,13]],"date-time":"2026-02-13T04:26:07Z","timestamp":1770956767057,"version":"3.50.1"},"reference-count":30,"publisher":"MDPI AG","issue":"15","license":[{"start":{"date-parts":[[2024,7,27]],"date-time":"2024-07-27T00:00:00Z","timestamp":1722038400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Natural Science Foundation","award":["62375048"],"award-info":[{"award-number":["62375048"]}]},{"name":"National Natural Science Foundation","award":["22ZR1402600"],"award-info":[{"award-number":["22ZR1402600"]}]},{"name":"National Natural Science Foundation","award":["21DZ1205402"],"award-info":[{"award-number":["21DZ1205402"]}]},{"name":"Natural Science Foundation of Shanghai","award":["62375048"],"award-info":[{"award-number":["62375048"]}]},{"name":"Natural Science Foundation of Shanghai","award":["22ZR1402600"],"award-info":[{"award-number":["22ZR1402600"]}]},{"name":"Natural Science Foundation of Shanghai","award":["21DZ1205402"],"award-info":[{"award-number":["21DZ1205402"]}]},{"name":"Shanghai 2021 \u201cScience and Technology Innovation Plan\u201d Social Development Science and Technology Research Project","award":["62375048"],"award-info":[{"award-number":["62375048"]}]},{"name":"Shanghai 2021 \u201cScience and Technology Innovation Plan\u201d Social Development Science and Technology Research Project","award":["22ZR1402600"],"award-info":[{"award-number":["22ZR1402600"]}]},{"name":"Shanghai 2021 \u201cScience and Technology Innovation Plan\u201d Social Development Science and Technology Research Project","award":["21DZ1205402"],"award-info":[{"award-number":["21DZ1205402"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Ocean temperature profile information plays a key role in understanding the marine environment. The passive remote-sensing technique can provide sea surface temperature measurements over large areas. However, it is sensitive to the atmospheric environment and cannot provide seawater temperature profile information. The lidar technique is the only way to carry out seawater temperature profile measurements over large areas. However, it is insufficient for measuring speed, the receiving field, stability, spectral integrity, simple system structures, and so on. Therefore, we propose a Brillouin lidar method combining two iodine cells at different temperatures to realize temperature measurements, where one iodine cell is used as a filter to absorb the elastic scattering and the other as an edge detection discriminator to obtain the seawater temperature measurement. The system has a fast measurement speed, a large receiving field, a simple system structure, and high stability. The system feasibility was verified via principle simulation and real iodine absorption curve measurements. For an ocean temperature of [5 \u00b0C, 15 \u00b0C], a laser wavelength of 532.10495 nm was more appropriate, corresponding to the iodine pool temperature combinations of 50 \u00b0C and 78 \u00b0C. For an ocean temperature of [15 \u00b0C, 32 \u00b0C], a laser wavelength of 532.10518 nm was more appropriate, corresponding to the iodine cell temperature combinations of 60 \u00b0C and 78 \u00b0C. When the laser intensity reached a measurement precision of 1\u2030, the temperature could be predicted with an accuracy of up to 0.2 K. This work shows promise as a potential solution for seawater temperature profile measurement.<\/jats:p>","DOI":"10.3390\/rs16152748","type":"journal-article","created":{"date-parts":[[2024,7,29]],"date-time":"2024-07-29T09:50:05Z","timestamp":1722246605000},"page":"2748","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["System Design of Ocean Temperature Measurement System Using Brillouin Lidar Based on Dual Iodine Cells"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4435-6167","authenticated-orcid":false,"given":"Fu","family":"Yang","sequence":"first","affiliation":[{"name":"College of Science, Donghua University, Shanghai 201620, China"}]},{"given":"Wenhao","family":"Chen","sequence":"additional","affiliation":[{"name":"College of Science, Donghua University, Shanghai 201620, China"},{"name":"Avic Shanghai Aviation Electric Co., Ltd., Shanghai 201101, China"}]},{"given":"Luqiang","family":"Liang","sequence":"additional","affiliation":[{"name":"College of Science, Donghua University, Shanghai 201620, China"}]},{"given":"Chunqi","family":"Fang","sequence":"additional","affiliation":[{"name":"Nanjing Institute of Advanced Laser Technology, Nanjing 210038, China"}]},{"given":"Yan","family":"He","sequence":"additional","affiliation":[{"name":"Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China"}]}],"member":"1968","published-online":{"date-parts":[[2024,7,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"R602","DOI":"10.1016\/j.cub.2009.05.046","article-title":"Impacts of Climate Change on Marine Organisms and Ecosystems","volume":"19","author":"Brierley","year":"2009","journal-title":"Curr. Biol."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"228","DOI":"10.1111\/j.1461-0248.2005.00871.x","article-title":"The impacts of climate change in coastal marine systems","volume":"9","author":"Harley","year":"2006","journal-title":"Ecol. Lett."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"333","DOI":"10.1002\/aqc.628","article-title":"Effects of changing temperature on benthic marine life in Britain and Ireland","volume":"14","author":"Hiscock","year":"2004","journal-title":"Aquat. Conserv.-Mar. Freshw. Ecosyst."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"158","DOI":"10.1016\/j.jmarsys.2005.11.019","article-title":"Quality control of ocean temperature and salinity profiles\u2014Historical and real-time data","volume":"65","author":"Ingleby","year":"2007","journal-title":"J. Mar. Syst."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"4278","DOI":"10.1073\/pnas.1522034113","article-title":"Importance of ocean salinity for climate and habitability","volume":"113","author":"Cullum","year":"2016","journal-title":"Proc. Natl. Acad. Sci. USA"},{"key":"ref_6","doi-asserted-by":"crossref","unstructured":"Wang, L., Wang, Y.J., Song, S., and Li, F. (2021). Overview of Fibre Optic Sensing Technology in the Field of Physical Ocean Observation. Front. Phys., 9.","DOI":"10.3389\/fphy.2021.745487"},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Wang, Y., Xu, Y., Chen, P., and Liang, K. (2023). Remote Sensing of Seawater Temperature and Salinity Profiles by the Brillouin Lidar Based on a Fizeau Interferometer and Multichannel Photomultiplier Tube. Sensors, 23.","DOI":"10.3390\/s23010446"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"450","DOI":"10.1002\/rog.20022","article-title":"A review of global ocean temperature observations: Implications for ocean heat content estimates and climate change","volume":"51","author":"Abraham","year":"2013","journal-title":"Rev. Geophys."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"223","DOI":"10.1038\/s41597-019-0236-x","article-title":"Satellite-based time-series of sea-surface temperature since 1981 for climate applications","volume":"6","author":"Merchant","year":"2019","journal-title":"Sci. Data"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"1421","DOI":"10.1109\/JSTARS.2022.3141980","article-title":"Remote Sensing Systems for Ocean: A Review (Part 2: Active Systems)","volume":"15","author":"Amani","year":"2022","journal-title":"IEEE J. Sel. Top. Appl. Earth Obs. Remote Sens."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"210","DOI":"10.1109\/JSTARS.2021.3130789","article-title":"Remote Sensing Systems for Ocean: A Review (Part 1: Passive Systems)","volume":"15","author":"Amani","year":"2022","journal-title":"IEEE J. Sel. Top. Appl. Earth Obs. Remote Sens."},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Moisan, J.R., Rousseaux, C.S., Stysley, P.R., Clarke, G.B., and Poulios, D.P. (2024). Ocean Temperature Profiling Lidar: Analysis of Technology and Potential for Rapid Ocean Observations. Remote Sens., 16.","DOI":"10.3390\/rs16071236"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"220016","DOI":"10.29026\/oea.2023.220016","article-title":"Brillouin scattering spectrum for liquid detection and applications in oceanography","volume":"6","author":"Wang","year":"2023","journal-title":"Opto-Electron. Adv."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"5820","DOI":"10.3390\/s8095820","article-title":"Remote Water Temperature Measurements Based on Brillouin Scattering with a Frequency Doubled Pulsed Yb:doped Fiber Amplifier","volume":"8","author":"Schorstein","year":"2008","journal-title":"Sensors"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"066002","DOI":"10.1117\/1.OE.51.6.066002","article-title":"Research on simultaneous measurement of ocean temperature and salinity using Brillouin shift and linewidth","volume":"51","author":"Liang","year":"2012","journal-title":"Opt. Eng."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"051407","DOI":"10.1117\/1.OE.53.5.051407","article-title":"Laboratory demonstration of a Brillouin lidar to remotely measure temperature profiles of the ocean","volume":"53","author":"Rudolf","year":"2014","journal-title":"Opt. Eng."},{"key":"ref_17","doi-asserted-by":"crossref","unstructured":"Emery, Y., and Fry, E.S. (1996, January 22\u201325). Laboratory development of a LIDAR for measurement of sound velocity in the ocean using Brillouin scattering. Proceedings of the Conference on Ocean Optics XIII, Halifax, NS, Canada.","DOI":"10.1117\/12.266444"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"6704","DOI":"10.1364\/AO.42.006704","article-title":"Measurement of the bulk viscosity of liquid by Brillouin scattering","volume":"42","author":"Xu","year":"2003","journal-title":"Appl. Opt."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"569","DOI":"10.1007\/s00340-007-2866-5","article-title":"A Brillouin lidar system using F-P etalon and ICCD for remote sensing of the ocean","volume":"90","author":"Shi","year":"2008","journal-title":"Appl. Phys. B-Lasers Opt."},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Liu, Z., Sun, J., Zhang, X., Zeng, Z., Xu, Y., Luo, N., He, X., and Shi, J. (2023). High-Accuracy Spectral Measurement of Stimulated-Brillouin-Scattering Lidar Based on Hessian Matrix and Steger Algorithm. Remote Sens., 15.","DOI":"10.3390\/rs15061511"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"245","DOI":"10.1007\/s00340-004-1540-4","article-title":"The edge technique as used in Brillouin lidar for remote sensing of the ocean","volume":"79","author":"Dai","year":"2004","journal-title":"Appl. Phys. B-Lasers Opt."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"6887","DOI":"10.1364\/AO.36.006887","article-title":"Accuracy limitations on Brillouin lidar measurements of temperature and sound speed in the ocean","volume":"36","author":"Edward","year":"1997","journal-title":"Appl. Opt."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"411","DOI":"10.1080\/09500340110088551","article-title":"Temperature dependence of the Brillouin linewidth in water","volume":"49","author":"Fry","year":"2002","journal-title":"J. Mod. Opt."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"319","DOI":"10.1007\/s00340-006-2169-2","article-title":"Calibration of edge technique considering variation of Brillouin line width at different temperatures of water","volume":"83","author":"Gong","year":"2006","journal-title":"Appl. Phys. B-Lasers Opt."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"160","DOI":"10.1007\/s00340-020-07509-1","article-title":"Brillouin shift and linewidth measurement based on double-edge detection technology in seawater","volume":"126","author":"Liang","year":"2020","journal-title":"Appl. Phys. B"},{"key":"ref_26","unstructured":"Smith, J.A., and Hostetler, C. (2024). Brillouin Asymmetric Spatial Heterodyne Oceanographic Lidar Receiver for Profiling Temperature, Salinity, and Sound Velocity."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"1266","DOI":"10.1109\/3.963","article-title":"Atomic Resonance Filters","volume":"24","author":"Gelbwachs","year":"1988","journal-title":"IEEE J. Quantum Electron."},{"key":"ref_28","doi-asserted-by":"crossref","unstructured":"Miles, R., Lempert, W., and Forkey, J. (1991, January 7\u201310). Instantaneous velocity fields and background suppression by filtered Rayleigh scattering. Proceedings of the 29th Aerospace Sciences Meeting (AIAA), Reno, NV, USA.","DOI":"10.2514\/6.1991-357"},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"6729","DOI":"10.1364\/AO.36.006729","article-title":"Corrected and calibrated I2 absorption model at frequency-doubled Nd:YAG laser wavelengths","volume":"36","author":"Forkey","year":"1997","journal-title":"Appl. Opt."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"93","DOI":"10.1016\/j.paerosci.2005.03.001","article-title":"Property measurement utilizing atomic\/molecular filter-based diagnostics","volume":"41","author":"Boguszko","year":"2005","journal-title":"Prog. Aerosp. Sci."}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/16\/15\/2748\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T15:24:56Z","timestamp":1760109896000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/16\/15\/2748"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,7,27]]},"references-count":30,"journal-issue":{"issue":"15","published-online":{"date-parts":[[2024,8]]}},"alternative-id":["rs16152748"],"URL":"https:\/\/doi.org\/10.3390\/rs16152748","relation":{},"ISSN":["2072-4292"],"issn-type":[{"value":"2072-4292","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,7,27]]}}}