{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,19]],"date-time":"2026-04-19T19:25:04Z","timestamp":1776626704454,"version":"3.51.2"},"reference-count":39,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2015,5,19]],"date-time":"2015-05-19T00:00:00Z","timestamp":1431993600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"the Key Project of Scientific and Technological Innovation of the Chinese Academy of Sciences","award":["GFZD-125-13-006"],"award-info":[{"award-number":["GFZD-125-13-006"]}]},{"name":"National Natural Science Foundation of China under Grant","award":["41222007"],"award-info":[{"award-number":["41222007"]}]},{"name":"Chinesisch-Deutsches Forschungsprojekt","award":["GZ659"],"award-info":[{"award-number":["GZ659"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>An improved aerosol retrieval algorithm based on the Advanced Multi-angular Polarized Radiometer (AMPR) is presented to illustrate the utility of additional 1640-nm observations for measuring aerosol optical depth (AOD) over land using look-up table approaches. Spectral neutrality of the polarized surface reflectance over visible to  short-wavelength infrared bands is verified, and the 1640-nm measurements corrected  for atmospheric effects are used to estimate the polarized surface reflectance at shorter wavelengths. The AMPR measurements over the Beijing-Tianjin-Hebei region in north China reveal that the polarized surface reflectance of 670, 865 and 1640 nm are highly correlated with correlation slopes close to one (0.985 and 1.03) when the scattering angle is less than 145\u00b0. The 1640-nm measurements are then employed to estimate polarized surface reflectance at shorter wavelengths for each single viewing direction, which are then used to improve the retrieval of AOD over land. The comparison between AMPR retrievals and ground-based Sun-sky radiometer measurements during three experimental flights illustrates that this approach retrieves AOD at 865 nm with uncertainties ranging from 0.01 to 0.06, while AOD varies from 0.05 to 0.17.<\/jats:p>","DOI":"10.3390\/rs70506240","type":"journal-article","created":{"date-parts":[[2015,5,19]],"date-time":"2015-05-19T10:35:57Z","timestamp":1432031757000},"page":"6240-6256","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":23,"title":["Improving Remote Sensing of Aerosol Optical Depth over Land by Polarimetric Measurements at 1640 nm: Airborne Test in North China"],"prefix":"10.3390","volume":"7","author":[{"given":"Lili","family":"Qie","sequence":"first","affiliation":[{"name":"State Environmental Protection Key Laboratory of Satellite Remote Sensing,  Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhengqiang","family":"Li","sequence":"additional","affiliation":[{"name":"State Environmental Protection Key Laboratory of Satellite Remote Sensing,  Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaobing","family":"Sun","sequence":"additional","affiliation":[{"name":"Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031 , China"},{"name":"Key Laboratory of Optical Calibration and Characterization, Chinese Academy of Sciences,  Hefei 230031, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bin","family":"Sun","sequence":"additional","affiliation":[{"name":"Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031 , China"},{"name":"Key Laboratory of Optical Calibration and Characterization, Chinese Academy of Sciences,  Hefei 230031, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Donghui","family":"Li","sequence":"additional","affiliation":[{"name":"State Environmental Protection Key Laboratory of Satellite Remote Sensing,  Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhao","family":"Liu","sequence":"additional","affiliation":[{"name":"State Environmental Protection Key Laboratory of Satellite Remote Sensing,  Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China"},{"name":"University of Chinese Academy of Sciences, Beijing 100049, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wei","family":"Huang","sequence":"additional","affiliation":[{"name":"State Environmental Protection Key Laboratory of Satellite Remote Sensing,  Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China"},{"name":"University of Chinese Academy of Sciences, Beijing 100049, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Han","family":"Wang","sequence":"additional","affiliation":[{"name":"Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031 , China"},{"name":"Key Laboratory of Optical Calibration and Characterization, Chinese Academy of Sciences,  Hefei 230031, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8024-1872","authenticated-orcid":false,"given":"Xingfeng","family":"Chen","sequence":"additional","affiliation":[{"name":"State Environmental Protection Key Laboratory of Satellite Remote Sensing,  Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Weizhen","family":"Hou","sequence":"additional","affiliation":[{"name":"State Environmental Protection Key Laboratory of Satellite Remote Sensing,  Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yanli","family":"Qiao","sequence":"additional","affiliation":[{"name":"Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031 , China"},{"name":"Key Laboratory of Optical Calibration and Characterization, Chinese Academy of Sciences,  Hefei 230031, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2015,5,19]]},"reference":[{"key":"ref_1","unstructured":"Stocker, T.F., Qin, D., Plattner, G.K., Tignor, M., Allen, S.K., Boschung, J., Nauels, A., Xia, Y., Bex, V., and Midgley, P.M. (2013). Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, Cambridge University Press."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"5542","DOI":"10.1364\/AO.45.005542","article-title":"Contribution of water leaving radiances to multiangle, multispectral polarimetric observations over the open oceans: Bio-optical model results for case I waters","volume":"45","author":"Chowdhary","year":"2006","journal-title":"Appl. Opt."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"939","DOI":"10.1364\/AO.42.000939","article-title":"Accurate and self-consistent ocean color algorithm: Simultaneous retrieval of aerosol optical properties and chlorophyll concentrations","volume":"42","author":"Stamnes","year":"2003","journal-title":"Appl. Opt."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"17051","DOI":"10.1029\/96JD03988","article-title":"Operational remote sensing of tropospheric aerosol over land from EOS Moderate Resolution Imaging Spectroradiometer","volume":"102","author":"Kaufman","year":"1997","journal-title":"J. Geophys. Res."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"1286","DOI":"10.1109\/36.628795","article-title":"The MODIS 2.1 \u03bcm channel-correlation with visible reflectance for use in remote sensing of aerosol","volume":"35","author":"Kaufman","year":"1997","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"351","DOI":"10.1029\/96GL00153","article-title":"Retrieval of aerosol optical thickness over land using the ATSR-2 dual-look satellite radiometer","volume":"23","author":"Flowerdew","year":"1996","journal-title":"Geophys. Res. Lett."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"2184","DOI":"10.1109\/TGRS.2006.872079","article-title":"Aerosol optical depth and land surface reflectance from Multiangle AATSR measurements: Global validation and intersensor comparisons","volume":"44","author":"Grey","year":"2006","journal-title":"IEEE Trans. Geosci. Rem. Sens."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"155","DOI":"10.1016\/j.rse.2004.09.009","article-title":"Using angular and spectral shape similarity constraints to improve MISR aerosol and surface retrievals over land","volume":"94","author":"Diner","year":"2005","journal-title":"Rem. Sens. Environ."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"17099","DOI":"10.1029\/98JD00900","article-title":"Derivation of aerosol properties from satellite measurements of backscattered ultraviolet radiation: Theoretical basis","volume":"103","author":"Torres","year":"1998","journal-title":"J. Geophys. Res."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"398","DOI":"10.1175\/1520-0469(2002)059<0398:ALTROA>2.0.CO;2","article-title":"A long-term record of aerosol optical depth from TOMS observations and comparison to AERONET measurements","volume":"59","author":"Torres","year":"2002","journal-title":"J. Atmos. Sci."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"D24S47","DOI":"10.1029\/2007JD008809","article-title":"Aerosols and surface UV products from Ozone Monitoring Instrument observations: An overview","volume":"112","author":"Torres","year":"2007","journal-title":"J. Geophys. Res."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"557","DOI":"10.1109\/TGRS.2004.824067","article-title":"Aerosol properties over bright-reflecting source regions","volume":"42","author":"Hsu","year":"2004","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Elias, T., Cairns, B., and Chowdhary, J. (2004). Surface optical properties measured by the airborne research scanning polarimeter during the CLAMS Experiment. Proc. SPIE, 5235.","DOI":"10.1117\/12.514245"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"D11214","DOI":"10.1029\/2006JD008029","article-title":"Aerosol retrieval over land using a multiband polarimeter and comparison with path radiance method","volume":"112","author":"Waquet","year":"2007","journal-title":"J. Geophys. Res."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"1228","DOI":"10.1364\/AO.48.001228","article-title":"Analysis of the spectral and angular response of the vegetated surface polarization for the purpose of aerosol remote sensing over land","volume":"48","author":"Waquet","year":"2009","journal-title":"Appl. Opt."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"103","DOI":"10.1117\/12.301140","article-title":"Polarization: Ground-based upward looking and aircraft\/satellite-based downward looking measurements","volume":"3220","author":"Cairns","year":"1997","journal-title":"Proc. SPIE"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"975","DOI":"10.5194\/amt-4-975-2011","article-title":"Statistically optimized inversion algorithm for enhanced retrieval of aerosol properties from spectral multi-angle polarimetric satellite observations","volume":"4","author":"Dubovik","year":"2011","journal-title":"Atmos. Meas. Tech."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"1383","DOI":"10.5194\/amt-4-1383-2011","article-title":"Remote sensing of aerosols by using polarized, directional and spectral measurements within the A-Train: The PARASOL mission","volume":"4","author":"Dubovik","year":"2011","journal-title":"Atmos. Meas. Tech."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"D10S10","DOI":"10.1029\/2004JD004839","article-title":"Maritime and dust aerosol retrieval from polarized and multispectral active and passive sensors","volume":"110","author":"Waquet","year":"2005","journal-title":"J. Geophys. Res."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"2007","DOI":"10.5194\/amt-6-2007-2013","article-title":"The Airborne Multiangle SpectroPolarimetric Imager (AirMSPI): A new tool for aerosol and cloud remote sensing","volume":"6","author":"Diner","year":"2013","journal-title":"Atmos. Meas. Tech."},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"Cairns, B., Travis, L.D., and Russel, E.E. (1999). The Research Scanning Polarimeter: Calibration and ground-based measurements. Proc. SPIE, 3754.","DOI":"10.1117\/12.366329"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"677","DOI":"10.1175\/BAMS-88-5-677","article-title":"Accurate monitoring of terrestrial aerosols and total Solar irradiance: Introducing the Glory mission","volume":"88","author":"Mishchenko","year":"2007","journal-title":"Bull. Am. Meteorol. Soc."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"4913","DOI":"10.1029\/2000JD900364","article-title":"Remote sensing of aerosols over land surfaces from POLDER-ADEOS-1 polarized measurements","volume":"106","author":"Devaux","year":"2001","journal-title":"J. Geophys. Res."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"0828003","DOI":"10.3788\/AOS201232.0828003","article-title":"System design and implementation of multi-angle polarimeter","volume":"32","author":"Cui","year":"2012","journal-title":"Acta Opt. Sin."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"527","DOI":"10.1007\/BF00168069","article-title":"Light scattering in planetary atmospheres","volume":"16","author":"Hansen","year":"1974","journal-title":"Space Sci. Rev."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"1153","DOI":"10.3788\/OPE.20122006.1153","article-title":"Polarization calibration of airborne muti-angle polarimetric radiometer","volume":"20","author":"Song","year":"2012","journal-title":"Opt. Precision Eng."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"879","DOI":"10.1007\/s00376-013-3100-5","article-title":"Retrieval of aerosol optical properties over a vegetation surface using multi-angular, multi-spectral, and polarized data","volume":"31","author":"Wang","year":"2014","journal-title":"Adv. Atmos. Sci."},{"key":"ref_28","first-page":"495","article-title":"A Sun\/sky-radiometer Observation Network with the extension of multi-wavelength polarization measurements","volume":"19","author":"Li","year":"2015","journal-title":"J. Remote Sens."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/S0034-4257(98)00031-5","article-title":"AERONET\u2013A federated instrument network and data archive for aerosol characterisation","volume":"66","author":"Holben","year":"1998","journal-title":"Remote Sens. Environ."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"487","DOI":"10.1109\/TGRS.1995.8746030","article-title":"Polarized reflectance of bare soils and vegetation: Measurements and models","volume":"33","author":"Leconte","year":"1995","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_31","unstructured":"Lafrance, B. (1997). Simplified Model of the Polarized Light Emerging from the Atmosphere. Correction of the Stratospheric Aerosol Impact on POLDER Measurements. [Ph.D. Thesis, Universit\u00e9 des Sciences et Techniques de Lille]. (In French)."},{"key":"ref_32","unstructured":"Cairns, B., Travis, L.D., Mishchenko, M.I., and Chowdhary, J. (2001, January 14\u201319). Aerosol retrievals over land surfaces: the advantages of polarization. Proceedings of the AMS Annual Meeting, Albuquerque, NM, USA."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"2642","DOI":"10.1016\/j.rse.2009.07.022","article-title":"Polarized reflectances of natural surfaces: Spaceborne measurements and analytical modeling","volume":"113","author":"Maignan","year":"2009","journal-title":"Remote Sens. Environ."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"591","DOI":"10.3390\/atmos3040591","article-title":"Exploration of a polarized surface bidirectional reflectance model using the Ground-Based Multiangle SpectroPolarimetric Imager","volume":"3","author":"Diner","year":"2012","journal-title":"Atmosphere"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"D10S14","DOI":"10.1029\/2004JD004874","article-title":"Development of global aerosol models using cluster analysis of Aerosol Robotic Network (AERONET) Measurements","volume":"110","author":"Omar","year":"2005","journal-title":"J. Geophys. Res."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"5526","DOI":"10.1016\/j.atmosenv.2009.05.037","article-title":"Vertical distributions of aerosols under different weather conditions: Analysis of in-situ aircraft measurements in Beijing, China","volume":"43","author":"Zhang","year":"2009","journal-title":"Atmos. Environ."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"413","DOI":"10.1016\/0022-4073(91)90043-P","article-title":"A new polarized atmospheric radiative transfer model","volume":"46","author":"Evans","year":"1991","journal-title":"J. Quant. Spectrosc. Radiat. Transfer"},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"1709","DOI":"10.1109\/36.763292","article-title":"Parameterization of surface polarized reflectances derived from POLDER spaceborne measurements","volume":"37","author":"Nadal","year":"1999","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"1395","DOI":"10.1364\/AO.14.001395","article-title":"Polarization of light reflected from rough planetary surface","volume":"14","author":"Wolff","year":"1975","journal-title":"Appl. Opt."}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/7\/5\/6240\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T20:46:34Z","timestamp":1760215594000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/7\/5\/6240"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015,5,19]]},"references-count":39,"journal-issue":{"issue":"5","published-online":{"date-parts":[[2015,5]]}},"alternative-id":["rs70506240"],"URL":"https:\/\/doi.org\/10.3390\/rs70506240","relation":{},"ISSN":["2072-4292"],"issn-type":[{"value":"2072-4292","type":"electronic"}],"subject":[],"published":{"date-parts":[[2015,5,19]]}}}