{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,14]],"date-time":"2026-02-14T21:36:06Z","timestamp":1771104966185,"version":"3.50.1"},"reference-count":56,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2014,10,29]],"date-time":"2014-10-29T00:00:00Z","timestamp":1414540800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>The knowledge of water storage variations in ungauged lakes is of fundamental importance to understanding the water balance on the Tibetan Plateau. In this paper, a simple framework was presented to monitor the fluctuation of inland water bodies by the combination of satellite altimetry measurements and optical satellite imagery without any in situ measurements. The fluctuation of water level, surface area, and water storage variations in Lake Qinghai were estimated to demonstrate this framework. Water levels retrieved from ICESat (Ice, Cloud, and and Elevation Satellite) elevation data and lake surface area derived from MODIS (Moderate Resolution Imaging Spectroradiometer) product were fitted by linear regression during the period from 2003 to 2009 when the overpass time for both of them was coincident. Based on this relationship, the time series of water levels from 1999 to 2002 were extended by using the water surface area extracted from Landsat TM\/ETM+ images as inputs, and finally the variations of water volume in Lake Qinghai were estimated from 1999 to 2009. The overall errors of water levels retrieved by the simple method in our work were comparable with other globally available test results with r = 0.93, MAE = 0.07 m, and RMSE = 0.09 m. The annual average rate of increase was 0.11 m\/yr, which was very close to the results obtained from in situ measurements. High accuracy was obtained in the estimation of surface areas. The MAE and RMSE were only 6 km2, and 8 km2, respectively, which were even lower than the MAE and RMAE of surface area extracted from Landsat TM images. The estimated water volume variations effectively captured the trend of annual  variation of Lake Qinghai. Good agreement was achieved between the estimated and measured water volume variations with MAE = 0.4 billion m3, and RMSE = 0.5 billion m3, which only account for 0.7% of the total water volume of Lake Qinghai. This study demonstrates that it is feasible to monitor comprehensively the fluctuation of large water bodies based entirely on remote sensing data.<\/jats:p>","DOI":"10.3390\/rs61110457","type":"journal-article","created":{"date-parts":[[2014,10,29]],"date-time":"2014-10-29T11:19:24Z","timestamp":1414581564000},"page":"10457-10482","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":45,"title":["Monitoring the Fluctuation of Lake Qinghai Using Multi-Source Remote Sensing Data"],"prefix":"10.3390","volume":"6","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1916-8009","authenticated-orcid":false,"given":"Wenbin","family":"Zhu","sequence":"first","affiliation":[{"name":"Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China"},{"name":"University of Chinese Academy of Sciences, Beijing 100049, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7472-2434","authenticated-orcid":false,"given":"Shaofeng","family":"Jia","sequence":"additional","affiliation":[{"name":"Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aifeng","family":"Lv","sequence":"additional","affiliation":[{"name":"Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2014,10,29]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"833","DOI":"10.1016\/j.isprsjprs.2011.09.002","article-title":"Improving the assessment of ICESatwater altimetry accounting for autocorrelation","volume":"66","author":"Abdallah","year":"2011","journal-title":"ISPRS. J. Photogramm. Remote Sens."},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Alsdorf, D.E., Rodriguez, E., and Lettenmaier, D.P. (2007). Measuring surface water from space. Rev. Geophys., 45.","DOI":"10.1029\/2006RG000197"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"247","DOI":"10.1007\/s10712-008-9051-1","article-title":"Monitoring continental surface waters by satellite altimetry","volume":"29","author":"Calmant","year":"2008","journal-title":"Surv. Geophys."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"252","DOI":"10.1016\/j.rse.2005.10.027","article-title":"Preliminary results of ENVISAT RA-2-derived water levels validation over the Amazon basin","volume":"100","author":"Frappart","year":"2006","journal-title":"Remote Sens. Environ."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"3604","DOI":"10.1016\/j.rse.2008.05.001","article-title":"Water level fluctuations derived from ENVISAT Radar Altimeter (RA-2) and in situ measurements in a subtropical waterbody: Lake Izabal (Guatemala)","volume":"112","author":"Medina","year":"2008","journal-title":"Remote Sens. Environ."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"23","DOI":"10.1007\/s10661-006-5233-9","article-title":"Measuring water storage fluctuations in Lake Dongting, China, by Topex\/Poseidon satellite altimetry","volume":"115","author":"Zhang","year":"2006","journal-title":"Environ. Monit. Assess."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"25","DOI":"10.1016\/j.rse.2013.03.013","article-title":"Modeling and analysis of lake water storage changes on the Tibetan Plateau using multi-mission satellite data","volume":"135","author":"Song","year":"2013","journal-title":"Remote Sens. Environ."},{"key":"ref_8","unstructured":"GLCF MODIS Water Mask. Available online: http:\/\/landcover.org\/data\/watermask."},{"key":"ref_9","first-page":"3","article-title":"Analysis of lake level changes in Nam Co in central Tibet utilizing synergistic satellite altimetry and optical imagery","volume":"17","author":"Kropacek","year":"2012","journal-title":"Int. J. Appl. Earth Obs. Geoinf."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"707","DOI":"10.1134\/S0097807807060127","article-title":"The ecological consequences of level changes in Lake Van","volume":"34","author":"Deniz","year":"2007","journal-title":"Water Resour."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"053532","DOI":"10.1117\/1.3601363","article-title":"Water level variation of Lake Qinghai from satellite and in situ measurements under climate change","volume":"5","author":"Zhang","year":"2011","journal-title":"J. Appl. Remote Sens."},{"key":"ref_12","first-page":"12","article-title":"ICESat derived elevation changes of Tibetan lakes between 2003 and 2009","volume":"17","author":"Phan","year":"2012","journal-title":"Int. J. Appl. Earth Obs. Geoinf."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"131","DOI":"10.1016\/j.rse.2013.01.005","article-title":"Water-level changes in China\u2019s large lakes determined from ICESat\/GLAS data","volume":"132","author":"Wang","year":"2013","journal-title":"Remote Sens. Environ."},{"key":"ref_14","first-page":"65","article-title":"Lakes in Tibetan Plateau extraction from remote sensing and their dynamic changes","volume":"33","author":"Yan","year":"2012","journal-title":"Acta Geosci. Sin."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"209","DOI":"10.1016\/j.gloplacha.2009.03.010","article-title":"Climate warming and growth of high-elevation inland lakes on the Tibetan Plateau","volume":"67","author":"Liu","year":"2009","journal-title":"Global Planet. Change"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"933","DOI":"10.3189\/002214308787779997","article-title":"Glacier and lake variations in the MapamYumco basin, western Himalayas, Tibetan Plateau, from 1974 to 2003 using remote sensing and GIS technologies","volume":"54","author":"Ye","year":"2008","journal-title":"J. Glaciology."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"1497","DOI":"10.1016\/j.asr.2011.01.004","article-title":"SOLS: A lake database to monitor in the Near Real Time water level and storage variations from remote sensing data","volume":"47","author":"Cretaux","year":"2011","journal-title":"Adv. Space Res."},{"key":"ref_18","unstructured":"LEGOS HYDROWEB. Available online: http:\/\/www.legos.obs-mip.fr\/soa\/hydrologie\/hydroweb\/."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"403","DOI":"10.1016\/j.rse.2013.03.010","article-title":"Estimating water volume variations in lakes and reservoirs from four operational satellite altimetry datasets and satellite imagery data","volume":"134","author":"Duan","year":"2013","journal-title":"Remote Sens. Environ."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"1505","DOI":"10.1007\/s11269-006-9096-1","article-title":"Lake-level change and water balance analysis at Lake Qinghai, west China during recent decades","volume":"21","author":"Li","year":"2007","journal-title":"Water Resour. Man."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"3069","DOI":"10.1016\/j.rse.2011.06.009","article-title":"A statistical spatial downscaling algorithm of TRMM precipitation based on NDVI and DEM in the Qaidam Basin of China","volume":"115","author":"Jia","year":"2011","journal-title":"Remote Sens. Environ."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"405","DOI":"10.1016\/S0264-3707(02)00042-X","article-title":"ICESat\u2019s laser measurements of polar ice, atmosphere, ocean, and land","volume":"34","author":"Zwally","year":"2002","journal-title":"J. Geodynamics"},{"key":"ref_23","doi-asserted-by":"crossref","unstructured":"Schutz, B.E., Zwally, H.J., Shuman, C.A., Hancock, D., and DiMarzio, J.P. (2005). Overview of the ICESat Mission. Geophys. Res. Lett., 32.","DOI":"10.1029\/2005GL024009"},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1029\/2005GL024028","article-title":"Geoscience Laser Altimeter System (GLAS) on the ICESat mission: On-orbit measurement performance","volume":"32","author":"Abshire","year":"2005","journal-title":"Geophys. Res. Lett."},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Kwok, R., Zwally, H.J., and Yi, D. (2004). ICESat observations of Arctic sea ice: A first look. Geophys. Res. Lett., 31.","DOI":"10.1029\/2004GL020309"},{"key":"ref_26","doi-asserted-by":"crossref","unstructured":"Zwally, H.J., Yi, D.H., Kwok, R., and Zhao, Y.H. (2008). ICESat measurements of sea ice freeboard and estimates of sea ice thickness in the Weddell Sea. J. Geophys .Res.-Oceans, 113.","DOI":"10.1029\/2007JC004284"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"4365","DOI":"10.1080\/01431160701241787","article-title":"Satellite-based assessment of the dynamics of new lakes in southern Egypt","volume":"28","author":"Chipman","year":"2007","journal-title":"Int. J. Remote. Sens."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"131","DOI":"10.1016\/j.jhydrol.2014.04.018","article-title":"Seasonal and abrupt changes in the water level of closed lakes on the Tibetan Plateau and implications for climate impacts","volume":"514","author":"Song","year":"2014","journal-title":"J. Hydrol."},{"key":"ref_29","first-page":"407","article-title":"Remote sensing-derived bathymetry of Lake Poopo","volume":"6","author":"Adalbert","year":"2014","journal-title":"Remote Sens."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"708","DOI":"10.3390\/rs3040708","article-title":"The relevance of GLAS\/ICESat elevation data for the monitoring of River Networks","volume":"3","author":"Baghdadi","year":"2011","journal-title":"Remote Sens."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"1733","DOI":"10.1016\/j.rse.2011.03.005","article-title":"Monitoring lake level changes on the Tibetan Plateau using ICESat altimetry data (2003\u20132009)","volume":"115","author":"Zhang","year":"2011","journal-title":"Remote Sens. Environ."},{"key":"ref_32","unstructured":"Berry, P.A.M. (2006, January 1). Two decades of inland water monitoring using satellite radar altimetry. Proceedings of 2006 15 Years of Progress in Radar Altimetry, Venice, Italy."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"1","DOI":"10.3319\/TAO.2008.19.1-2.1(SA)","article-title":"A survey of ICESat coastal altimetry applications: Continental coast, open ocean island, and inland rivers","volume":"19","author":"Urban","year":"2008","journal-title":"Terr. Atmos. Ocean. Sci."},{"key":"ref_34","unstructured":"Braun, A., Cheng, K., Csatho, B., and Shum, C.K. (2004, January 7\u20139). ESat Laser Altimetry in the Great Lakes. Proceedings of 2004 Annual Meeting of the Institute of Navigation, Dayton, OH, USA."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"163","DOI":"10.1016\/j.jhydrol.2009.03.008","article-title":"Monitoring the water balance of Lake Victoria, East Africa, from space","volume":"370","author":"Swenson","year":"2009","journal-title":"J. Hydrol."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"7522","DOI":"10.3390\/rs6087522","article-title":"Estimation of reservoir discharges from Lake Nasser and Roseires Reservoir in the Nile Basin using satellite altimetry and imagery data","volume":"6","author":"Eric","year":"2014","journal-title":"Remote Sens."},{"key":"ref_37","first-page":"196","article-title":"The water body area changes of Dalainur Lake based on satellite images of remote sensing","volume":"18","author":"Zhang","year":"2011","journal-title":"Res. Soil Water Conserv."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"3","DOI":"10.1016\/j.rse.2011.06.021","article-title":"Monitoring two decades of urbanization in the Poyang Lake area, China through spectral unmixing","volume":"117","author":"Michishita","year":"2012","journal-title":"Remote Sens. Environ."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"1053","DOI":"10.1016\/j.rse.2010.12.010","article-title":"A simple and effective method for filling gaps in Landsat ETM plus SLC-off images","volume":"115","author":"Chen","year":"2011","journal-title":"Remote Sens. Environ."},{"key":"ref_40","unstructured":"EXELIS Visual Information Solution. Available online: http:\/\/www.exelisvis.com."},{"key":"ref_41","unstructured":"Pat, S., Esad, M., and Gyanesh, C. SCL Gap-Filled Products Phase One Methodology. Available online: http:\/\/landsat.usgs.gov\/documents\/SLC_Gap_Fill_Methodology.pdf."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"657","DOI":"10.1016\/j.rse.2009.11.010","article-title":"Mapping evapotranspiration using MODIS and MM5 Four-Dimensional Data Assimilation","volume":"114","author":"Jang","year":"2010","journal-title":"Remote Sens. Environ."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"36","DOI":"10.1109\/TGRS.2006.885401","article-title":"Verification of the vertical error in C-band SRTM DEM using ICESat and Landsat-7, Otter Tail County, MN","volume":"45","author":"Bhang","year":"2007","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"257","DOI":"10.1016\/S0034-4257(96)00067-3","article-title":"NDWI\u2014A normalized difference water index for remote sensing of vegetation liquid water from space","volume":"58","author":"Gao","year":"1996","journal-title":"Remote Sens. Environ."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"1307","DOI":"10.14358\/PERS.75.11.1307","article-title":"Analysis of dynamic thresholds for the normalized difference water index","volume":"75","author":"Ji","year":"2009","journal-title":"Photogramm. Eng. Remote Sens."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"475","DOI":"10.1016\/j.rse.2003.10.021","article-title":"Vegetation water content mapping using Landsat data derived normalized difference water index for corn and soybeans","volume":"92","author":"Jackson","year":"2004","journal-title":"Remote Sens. Environ."},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"66","DOI":"10.1016\/j.rse.2006.07.012","article-title":"Classification of ponds from high-spatial resolution remote sensing: Application to Rift Valley Fever epidemics in Senegal","volume":"106","author":"Lacaux","year":"2007","journal-title":"Remote Sens. Environ."},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"3025","DOI":"10.1080\/01431160600589179","article-title":"Modification of normalized difference water index (NDWI) to enhance open water features in remotely sensed imagery","volume":"27","author":"Xu","year":"2006","journal-title":"Int. J. Remote. Sens."},{"key":"ref_49","first-page":"344","article-title":"Assessing optical earth observation systems for mapping and monitoring temporary ponds in arid areas","volume":"11","author":"Soti","year":"2009","journal-title":"Int. J. Appl. Earth Obs. Geoinf."},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"3153","DOI":"10.1080\/01431160500309934","article-title":"A water index for rapid mapping of shoreline changes of five East African Rift Valley lakes: An empirical analysis using Landsat TM and ETM+ data","volume":"27","author":"Ouma","year":"2006","journal-title":"Int. J. Remote. Sens."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"733","DOI":"10.1080\/01431169608949041","article-title":"Remote sensing of ephemeral water bodies in Western Niger","volume":"17","author":"Verdin","year":"1996","journal-title":"Int. J. Remote. Sens."},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"63","DOI":"10.1080\/10106049209354353","article-title":"Using spectra vegetation indices to estimate rangeland productivity","volume":"1","author":"Richardson","year":"1992","journal-title":"Geocarto Int."},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"552","DOI":"10.1016\/j.rse.2009.10.009","article-title":"Wetland monitoring using classification trees and SPOT-5 seasonal time series","volume":"114","author":"Davranche","year":"2010","journal-title":"Remote Sens. Environ."},{"key":"ref_54","doi-asserted-by":"crossref","first-page":"204","DOI":"10.1080\/01490419.2010.488983","article-title":"Investigating the performance of the Jason-2\/OSTM radar altimeter over lakes and reservoirs","volume":"33","author":"Birkett","year":"2010","journal-title":"Mar. Geodesy"},{"key":"ref_55","first-page":"100","article-title":"The systematic difference and its distribution between the 1985 national height datum and the global quasigeoid","volume":"33","author":"Guo","year":"2004","journal-title":"Acta Geod. Cartogr. Sin."},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"141","DOI":"10.1016\/S0921-8181(01)00139-4","article-title":"Interannual lake level fluctuations (1993\u20131999) in Africa from Topex\/Poseidon: Connections with ocean\u2013atmosphere interactions over the Indian Ocean","volume":"32","author":"Mercier","year":"2002","journal-title":"Global Planet. Change"}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/6\/11\/10457\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T21:17:34Z","timestamp":1760217454000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/6\/11\/10457"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014,10,29]]},"references-count":56,"journal-issue":{"issue":"11","published-online":{"date-parts":[[2014,11]]}},"alternative-id":["rs61110457"],"URL":"https:\/\/doi.org\/10.3390\/rs61110457","relation":{},"ISSN":["2072-4292"],"issn-type":[{"value":"2072-4292","type":"electronic"}],"subject":[],"published":{"date-parts":[[2014,10,29]]}}}