{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,11]],"date-time":"2026-08-11T07:33:51Z","timestamp":1786433631593,"version":"build-2736575974"},"reference-count":38,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2015,5,4]],"date-time":"2015-05-04T00:00:00Z","timestamp":1430697600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"NASA","award":["NNX09AN36G"],"award-info":[{"award-number":["NNX09AN36G"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Monitoring surface albedo at medium-to-fine resolution (&lt;100 m) has become increasingly important for medium-to-fine scale applications and coarse-resolution data evaluation. This paper presents a method for estimating surface albedo directly using  top-of-atmosphere reflectance. This is the first attempt to derive surface albedo for both snow-free and snow-covered conditions from medium-resolution data with a single approach. We applied this method to the multispectral data from the wide-swath Chinese HuanJing (HJ) satellites at a spatial resolution of 30 m to demonstrate the feasibility of this data for surface albedo monitoring over rapidly changing surfaces. Validation against ground measurements shows that the method is capable of accurately estimating surface albedo over both snow-free and snow-covered surfaces with an overall root mean square error (RMSE) of 0.030 and r-square (R2) of 0.947. The comparison between HJ albedo estimates and the Moderate Resolution Imaging Spectral Radiometer (MODIS) albedo product suggests that the HJ data and proposed algorithm can generate robust albedo estimates over various land cover types with an RMSE of 0.011\u20130.014. The accuracy of HJ albedo estimation improves with the increase in view zenith angles, which further demonstrates the unique advantage of wide-swath satellite data in albedo estimation.<\/jats:p>","DOI":"10.3390\/rs70505495","type":"journal-article","created":{"date-parts":[[2015,5,4]],"date-time":"2015-05-04T10:33:04Z","timestamp":1430735584000},"page":"5495-5510","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":36,"title":["Land Surface Albedo Estimation from Chinese HJ Satellite Data Based on the Direct Estimation Approach"],"prefix":"10.3390","volume":"7","author":[{"given":"Tao","family":"He","sequence":"first","affiliation":[{"name":"Department of Geographical Sciences, University of Maryland, College Park, MD 20742, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shunlin","family":"Liang","sequence":"additional","affiliation":[{"name":"Department of Geographical Sciences, University of Maryland, College Park, MD 20742, USA"},{"name":"State Key Laboratory of Remote Sensing Science, School of Geography,  Beijing Normal University, Beijing 100875, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dongdong","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Geographical Sciences, University of Maryland, College Park, MD 20742, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaona","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Geographical Sciences, University of Maryland, College Park, MD 20742, USA"},{"name":"State Key Laboratory of Remote Sensing Science, School of Geography,  Beijing Normal University, Beijing 100875, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dan-Xia","family":"Song","sequence":"additional","affiliation":[{"name":"Department of Geographical Sciences, University of Maryland, College Park, MD 20742, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bo","family":"Jiang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Remote Sensing Science, School of Geography,  Beijing Normal University, Beijing 100875, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2015,5,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Gaffin, S.R., Imhoff, M., Rosenzweig, C., Khanbilvardi, R., Pasqualini, A., Kong, A.Y.Y., Grillo, D., Freed, A., Hillel, D., and Hartung, E. (2012). Bright is the new black-multi-year performance of high-albedo roofs in an urban climate. Environ. Res. Lett., 7.","DOI":"10.1088\/1748-9326\/7\/1\/014029"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Petropoulos, G.P. (2013). Remote Sensing of Energy Fluxes and Soil Moisture Content, CRC Press.","DOI":"10.1201\/b15610"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"3107","DOI":"10.1007\/s00382-012-1569-8","article-title":"The global energy balance from a surface perspective","volume":"40","author":"Wild","year":"2013","journal-title":"Clim. Dyn."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"10281","DOI":"10.1002\/2014JD021667","article-title":"Analysis of global land surface albedo climatology and spatial-temporal variation during 1981\u20132010 from multiple satellite products","volume":"119","author":"He","year":"2014","journal-title":"J. Geophys. Res.: Atmos."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"225","DOI":"10.1109\/JSTARS.2010.2048556","article-title":"Review on estimation of land surface radiation and energy budgets from ground measurement, remote sensing and model simulations","volume":"3","author":"Liang","year":"2010","journal-title":"IEEE J. Sel. Top. Appl. Earth Obs. Remote Sens."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"1393","DOI":"10.1109\/TGRS.2013.2243457","article-title":"Use of in situ and airborne multiangle data to assess MODIS- and Landsat-based estimates of directional reflectance and albedo","volume":"51","author":"Roman","year":"2013","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"2184","DOI":"10.1016\/j.rse.2011.04.012","article-title":"Variability in surface brdf at different spatial scales (30 m\u2013500 m) over a mixed agricultural landscape as retrieved from airborne and satellite spectral measurements","volume":"115","author":"Roman","year":"2011","journal-title":"Remote Sens. Environ."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"10","DOI":"10.1016\/j.ecolmodel.2014.04.007","article-title":"Measured and modelled albedos in finnish boreal forest stands of different species, structure and understory","volume":"284","author":"Kuusinen","year":"2014","journal-title":"Ecol. Model."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"563","DOI":"10.5194\/bg-11-563-2014","article-title":"Albedo-induced radiative forcing from mountain pine beetle outbreaks in forests, south-central rocky mountains: Magnitude, persistence, and relation to outbreak severity","volume":"11","author":"Vanderhoof","year":"2014","journal-title":"Biogeosciences"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"145","DOI":"10.1016\/j.rse.2014.02.005","article-title":"Effects of forest age on albedo in boreal forests estimated from MODIS and Landsat Albedo retrievals","volume":"145","author":"Kuusinen","year":"2014","journal-title":"Remote Sens. Environ."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"4480","DOI":"10.1109\/JSTARS.2014.2343592","article-title":"Angular effects and correction for medium resolution sensors to support crop monitoring","volume":"7","author":"Gao","year":"2014","journal-title":"IEEE J. Sel. Top. Appl. Earth Obs. Remote Sens."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"65","DOI":"10.1016\/j.isprsjprs.2011.10.007","article-title":"Estimation of the relationship between remotely sensed anthropogenic heat discharge and building energy use","volume":"67","author":"Zhou","year":"2012","journal-title":"ISPRS J. Photogramm. Remote Sens."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"83","DOI":"10.1016\/j.rse.2011.07.021","article-title":"Synergies between vswir and tir data for the urban environment: An evaluation of the potential for the hyperspectral infrared imager (HYSPIRI) decadal survey mission","volume":"117","author":"Roberts","year":"2012","journal-title":"Remote Sens. Environ."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"840","DOI":"10.1109\/JSTARS.2012.2212236","article-title":"Assessment of the radiometric performance of Chinese HJ-1 satellite ccd instruments","volume":"6","author":"Jiang","year":"2013","journal-title":"IEEE J. Sel. Top. Appl. Earth Obs. Remote Sens."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"713","DOI":"10.1007\/s11431-012-5109-x","article-title":"Uncertainty analysis of cross-calibration for HJ-1 CCD camera","volume":"56","author":"Wang","year":"2013","journal-title":"Sci. China Technol. Sci."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"8564","DOI":"10.3390\/s130708564","article-title":"Radioactive quality evaluation and cross validation of data from the HJ-1A\/B satellites\u2019 CCD sensors","volume":"13","author":"Zhang","year":"2013","journal-title":"Sensors"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"26","DOI":"10.1007\/s11430-010-4127-4","article-title":"Quantitative estimation of the Shrub canopy LAI from atmosphere-corrected HJ-1 CCD data in MU US sandland","volume":"53","author":"Chen","year":"2010","journal-title":"Sci. China Earth Sci."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"74","DOI":"10.1007\/s11430-010-4134-5","article-title":"Aerosol optical depth retrieval by HJ-1\/CCD supported by MODIS surface reflectance data","volume":"53","author":"Sun","year":"2010","journal-title":"Sci. China Earth Sci."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"7906","DOI":"10.1364\/OE.22.007906","article-title":"Atmospheric correction of HJ-1 CCD imagery over turbid lake waters","volume":"22","author":"Zhang","year":"2014","journal-title":"Opt. Express"},{"key":"ref_20","first-page":"173","article-title":"High-resolution aerosol remote sensing retrieval over urban areas by synergetic use of HJ-1 CCD and MODIS data","volume":"46","author":"Li","year":"2012","journal-title":"Atmos. Environ."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"994","DOI":"10.1109\/LGRS.2012.2187041","article-title":"Bidirectional reflectance for multiple snow-covered land types from MISR products","volume":"9","author":"Wu","year":"2012","journal-title":"IEEE Geosci. Remote Sens. Lett."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"2204","DOI":"10.1016\/j.rse.2011.04.019","article-title":"An algorithm for the retrieval of 30-m snow-free Albedo from Landsat surface reflectance and MODIS BRDF","volume":"115","author":"Shuai","year":"2011","journal-title":"Remote Sens. Environ."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"467","DOI":"10.1016\/j.rse.2014.07.009","article-title":"An approach for the long-term 30-m land surface snow-free albedo retrieval from historic landsat surface reflectance and MODIS-based a priori anisotropy knowledge","volume":"152","author":"Shuai","year":"2014","journal-title":"Remote Sens. Environ."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"4919","DOI":"10.1109\/JSTARS.2014.2302234","article-title":"Estimation of high-resolution land surface shortwave Albedo from Aviris data","volume":"7","author":"He","year":"2014","journal-title":"IEEE J. Sel. Top. Appl. Earth Obs. Remote Sens."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"135","DOI":"10.1016\/S0034-4257(02)00091-3","article-title":"First operational Brdf, Albedo Nadir reflectance products from MODIS","volume":"83","author":"Schaaf","year":"2002","journal-title":"Remote Sens. Environ."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"627","DOI":"10.1016\/j.rse.2014.07.019","article-title":"Intercomparison of landsat albedo retrieval techniques and evaluation against in situ measurements across the us surfrad network","volume":"152","author":"Franch","year":"2014","journal-title":"Remote Sens. Environ."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"8966","DOI":"10.3390\/rs6098966","article-title":"Derivation of land surface albedo at high resolution by combining HJ-1A\/B reflectance observations with MODIS BRDF products","volume":"6","author":"Gao","year":"2014","journal-title":"Remote Sens."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"286","DOI":"10.1016\/j.rse.2012.01.004","article-title":"Estimation of surface albedo and directional reflectance from moderate resolution imaging spectroradiometer (MODIS) observations","volume":"119","author":"He","year":"2012","journal-title":"Remote Sens. Environ."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"12577","DOI":"10.1002\/2013JD020417","article-title":"Direct estimation of land surface albedo from VIIRS data: Algorithm improvement and preliminary validation","volume":"118","author":"Wang","year":"2013","journal-title":"J. Geophys. Res.: Atmos."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"977","DOI":"10.1109\/36.841980","article-title":"An algorithm for the retrieval of Albedo from space using semiempirical BRDF models","volume":"38","author":"Lucht","year":"2000","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"3428","DOI":"10.1109\/TGRS.2013.2272935","article-title":"Fusion of satellite land surface albedo products across scales using a multiresolution tree method in the north central United States","volume":"52","author":"He","year":"2014","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"60","DOI":"10.1016\/j.rse.2013.08.025","article-title":"Evaluation of MODIS Albedo product (MCD43A) over grassland, agriculture and forest surface types during dormant and snow-covered periods","volume":"140","author":"Wang","year":"2014","journal-title":"Remote Sens. Environ."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"712","DOI":"10.1175\/1520-0450(1999)038<0712:ROLSAF>2.0.CO;2","article-title":"Retrieval of land surface albedo from satellite observations: A simulation study","volume":"38","author":"Liang","year":"1999","journal-title":"J. Appl. Meteorol."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"675","DOI":"10.1109\/36.581987","article-title":"Second Simulation of the Satellite Signal in the Solar Spectrum, 6S: An overview","volume":"35","author":"Vermote","year":"1997","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_35","doi-asserted-by":"crossref","unstructured":"He, T., Liang, S.L., and Wang, D. (2015). Direct estimation of land surface Albedo from simultaneous multi-angle MISR data. Remote Sens. Environ., submitted.","DOI":"10.3390\/rs70505495"},{"key":"ref_36","doi-asserted-by":"crossref","unstructured":"Wang, D., Liang, S.L., He, T., Yu, Y., Schaaf, C., and Wang, Z. (2015). Estimating daily mean land surface albedo from MODIS data. J. Geophys. Res.: Atmos., submitted.","DOI":"10.1002\/2015JD023178"},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"323","DOI":"10.1016\/j.rse.2012.02.019","article-title":"Intercomparison of MODIS albedo retrievals and in situ measurements across the global fluxnet network","volume":"121","author":"Cescatti","year":"2012","journal-title":"Remote Sens. Environ."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"159","DOI":"10.1016\/j.rse.2013.01.012","article-title":"A comprehensive change detection method for updating the national land cover database to circa 2011","volume":"132","author":"Jin","year":"2013","journal-title":"Remote Sens. Environ."}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/7\/5\/5495\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T20:45:44Z","timestamp":1760215544000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/7\/5\/5495"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015,5,4]]},"references-count":38,"journal-issue":{"issue":"5","published-online":{"date-parts":[[2015,5]]}},"alternative-id":["rs70505495"],"URL":"https:\/\/doi.org\/10.3390\/rs70505495","relation":{},"ISSN":["2072-4292"],"issn-type":[{"value":"2072-4292","type":"electronic"}],"subject":[],"published":{"date-parts":[[2015,5,4]]}}}