{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,5]],"date-time":"2026-03-05T22:13:20Z","timestamp":1772748800373,"version":"3.50.1"},"reference-count":51,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2015,3,24]],"date-time":"2015-03-24T00:00:00Z","timestamp":1427155200000},"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 Tizinafu watershed has a complex mountainous terrain in the western Kunlun Mountains; little study has been done on the spatial and temporal characteristics of snow cover in the region. Daily snow cover data of 10 hydrological years (October 2002 to September 2012) in the watershed were generated by combining MODIS Terra (MOD10A1) and Aqua (MYD10A1) snow cover products and employing a nine-day temporal filter for cloud reduction. The accuracy and window size of the temporal filter were assessed using a simulation approach. Spatial and temporal characteristics of snow cover in the watershed were then analyzed. Our results showed that snow generally starts melting in March and reaches the minimum in early August in the watershed. Snow cover percentages (SCPs) in all five elevation zones increase consistently with the rise of elevation. Slope doesn\u2019t play a major role in snow cover distribution when it exceeds 10\u00b0. The largest SCP difference is between the south and the other aspects and occurs between mid-October and mid-November with decreasing SCP, indicating direct solar radiation may cause the reduction of snow cover. While both the mean snow cover durations (SCDs) of the hydrological years and of the snowmelt seasons share a similar spatial pattern to the topography of the watershed, the coefficient of variation of the SCDs exhibits an opposite spatial distribution. There is a significant correlation between annual mean SCP and annual total stream flow, indicating that snowmelt is a major source of stream runoff that might be predictable with SCP.<\/jats:p>","DOI":"10.3390\/rs70403426","type":"journal-article","created":{"date-parts":[[2015,3,24]],"date-time":"2015-03-24T13:07:25Z","timestamp":1427202445000},"page":"3426-3445","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":29,"title":["Spatial and Temporal Characteristics of Snow Cover in the Tizinafu Watershed of the Western Kunlun Mountains"],"prefix":"10.3390","volume":"7","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8536-8645","authenticated-orcid":false,"given":"Jiangfeng","family":"She","sequence":"first","affiliation":[{"name":"Department of Geographical Information Science, Nanjing University, Nanjing 210023, China"}]},{"given":"Yufang","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Geographical Information Science, Nanjing University, Nanjing 210023, China"}]},{"given":"Xingong","family":"Li","sequence":"additional","affiliation":[{"name":"Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences,  Wulumuqi 830011, China"},{"name":"Department of Geography, University of Kansas, Lawrence, KS 66045, USA"}]},{"given":"Xuezhi","family":"Feng","sequence":"additional","affiliation":[{"name":"Department of Geographical Information Science, Nanjing University, Nanjing 210023, China"}]}],"member":"1968","published-online":{"date-parts":[[2015,3,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Viviroli, D., D\u00fcrr, H.H., Messerli, B., Meybeck, M., and Weingartner, R. (2007). Mountains of the world, water towers for humanity: Typology, mapping, and global significance. Water Resour. Res., 43.","DOI":"10.1029\/2006WR005653"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"2339","DOI":"10.1175\/1520-0442(2000)013<2339:NHSCVA>2.0.CO;2","article-title":"Northern Hemisphere snow cover variability and change, 1915\u201397","volume":"13","author":"Brown","year":"2000","journal-title":"J. Climate"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"3065","DOI":"10.1002\/hyp.1089","article-title":"Variability and trends in the annual snow-cover cycle in Northern Hemisphere land areas, 1972\u20132000","volume":"16","author":"Dye","year":"2002","journal-title":"Hydrol. Process."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"303","DOI":"10.1038\/nature04141","article-title":"Potential impacts of a warming climate on water availability in snow-dominated regions","volume":"438","author":"Barnett","year":"2005","journal-title":"Nature"},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"D\u00e9ry, S.J., and Brown, R.D. (2007). Recent Northern Hemisphere snow cover extent trends and implications for the snow-albedo feedback. Geophys. Res. Lett., 34.","DOI":"10.1029\/2007GL031474"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"151","DOI":"10.1038\/ngeo1062","article-title":"Radiative forcing and albedo feedback from the Northern Hemisphere cryosphere between 1979 and 2008","volume":"4","author":"Flanner","year":"2011","journal-title":"Nat. Geosci."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"210","DOI":"10.1016\/j.gloplacha.2008.02.001","article-title":"Cryospheric change in China","volume":"62","author":"Li","year":"2008","journal-title":"Global Planet. Change"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"145","DOI":"10.3189\/172756408787814690","article-title":"Snow depth derived from passive microwave remote-sensing data in China","volume":"49","author":"Che","year":"2008","journal-title":"Ann. Glaciol."},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Wang, J., Li, H., Hao, X., Huang, X., Hou, J., Che, T., Dai, L., Liang, T., Huang, C., and Li, H. (2014). Remote sensing for snow hydrology in China: Challenges and perspectives. J. Appl. Remote Sens., 8.","DOI":"10.1117\/1.JRS.8.084687"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"367","DOI":"10.1016\/j.rse.2006.09.035","article-title":"Assessment of spring snow cover duration variability over northern Canada from satellite datasets","volume":"111","author":"Brown","year":"2007","journal-title":"Remote Sens. Environ."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"319","DOI":"10.5194\/hess-13-319-2009","article-title":"Topographic control of snow distribution in an alpine watershed of western Canada inferred from spatially-filtered MODIS snow products","volume":"13","author":"Tong","year":"2009","journal-title":"Hydrol. Earth Syst. Sci."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"1820","DOI":"10.1175\/JCLI3694.1","article-title":"Snow cover distribution, variability, and response to climate change in Western China","volume":"19","author":"Dahe","year":"2006","journal-title":"J. Climate"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"192","DOI":"10.1016\/j.jhydrol.2009.03.028","article-title":"New methods for studying the spatiotemporal variation of snow cover based on combination products of MODIS Terra and Aqua","volume":"371","author":"Wang","year":"2009","journal-title":"J. Hydrol."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"L06706","DOI":"10.1029\/2007GL029262","article-title":"MODIS\/Terra observed seasonal variations of snow cover over the Tibetan Plateau","volume":"34","author":"Pu","year":"2007","journal-title":"Geophys. Res. Lett."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"1514","DOI":"10.1016\/j.rse.2007.06.001","article-title":"An application of MODIS data to snow cover monitoring in a pastoral area: A case study in Northern Xinjiang, China","volume":"112","author":"Liang","year":"2008","journal-title":"Remote Sens. Environ."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"87","DOI":"10.1016\/j.geomorph.2010.11.011","article-title":"Snow cover, snowmelt timing and stream power in the Wind River Range, Wyoming","volume":"137","author":"Hall","year":"2012","journal-title":"Geomorphology"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"1405","DOI":"10.1029\/2002GL016384","article-title":"Seasonality and trends of snow-cover, vegetation index, and temperature in northern Eurasia","volume":"30","author":"Dye","year":"2003","journal-title":"Geophys. Res. Lett."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"591","DOI":"10.1002\/joc.1014","article-title":"Snow cover in Eastern Europe in relation to temperature, precipitation and circulation","volume":"24","author":"Bednorz","year":"2004","journal-title":"Int. J. Climatol."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"3931","DOI":"10.1002\/hyp.7098","article-title":"Snowmelt runoff modelling in an arid mountain watershed, Tarim Basin, China","volume":"22","author":"Li","year":"2008","journal-title":"Hydrol. Process."},{"key":"ref_20","unstructured":"MODIS, Available online: Http:\/\/modis.gsfc.nasa.gov."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"127","DOI":"10.1016\/0034-4257(95)00137-P","article-title":"Development of methods for mapping global snow cover using moderate resolution imaging spectroradiometer data","volume":"54","author":"Hall","year":"1995","journal-title":"Remote Sens. Environ."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"181","DOI":"10.1016\/S0034-4257(02)00095-0","article-title":"MODIS snow-cover products","volume":"83","author":"Hall","year":"2002","journal-title":"Remote Sens. Environ."},{"key":"ref_23","unstructured":"National Snow and Ice Data Center. Available online: Http:\/\/nsidc.Org."},{"key":"ref_24","unstructured":"Dwyer, M.J., and Schmidt, G. (2006). Earth Science Satellite Remote Sensing, Springer."},{"key":"ref_25","unstructured":"Hall, D., Riggs, G., and Salomonson, V. (2011). MODIS\/Terra Snow Cover Daily L3 Global 500 m Grid V004, January to March 2003, National Snow and Ice Data Center. Digital Media, Updated Daily."},{"key":"ref_26","unstructured":"Aster Global Digital Elevation Model. Available online: http:\/\/www.jspacesystems.or.jp\/ersdac\/GDEM\/E\/4.html."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"1534","DOI":"10.1002\/hyp.6715","article-title":"Accuracy assessment of the MODIS snow products","volume":"21","author":"Hall","year":"2007","journal-title":"Hydrol. Process."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"3723","DOI":"10.1002\/hyp.1231","article-title":"An assessment of the differences between three satellite snow cover mapping techniques","volume":"16","author":"Bitner","year":"2002","journal-title":"Hydrol. Process."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"162","DOI":"10.1016\/S0034-4257(03)00097-X","article-title":"Validation of daily MODIS snow cover maps of the Upper Rio Grande River Basin for the 2000\u20132001 snow year","volume":"86","author":"Klein","year":"2003","journal-title":"Remote Sens. Environ."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"214","DOI":"10.1016\/j.rse.2004.10.007","article-title":"Statistical evaluation of remotely sensed snow-cover products with constraints from streamflow and SNOTEL measurements","volume":"94","author":"Zhou","year":"2005","journal-title":"Remote Sens. Environ."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"419","DOI":"10.1002\/hyp.7151","article-title":"Comparison and validation of MODIS standard and new combination of Terra and Aqua snow cover products in northern Xinjiang, China","volume":"23","author":"Wang","year":"2009","journal-title":"Hydrol. Process."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"033559","DOI":"10.1117\/1.3265996","article-title":"Development and assessment of combined Terra and Aqua snow cover products in Colorado Plateau, USA and northern Xinjiang, China","volume":"3","author":"Xie","year":"2009","journal-title":"J. Appl. Remote Sens."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"1662","DOI":"10.1016\/j.rse.2010.02.017","article-title":"Integrated assessment on multi-temporal and multi-sensor combinations for reducing cloud obscuration of MODIS snow cover products of the Pacific Northwest USA","volume":"114","author":"Gao","year":"2010","journal-title":"Remote Sens. Environ."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"23","DOI":"10.1016\/j.jhydrol.2010.01.022","article-title":"Toward advanced daily cloud-free snow cover and snow water equivalent products from Terra-Aqua MODIS and Aqua AMSR-E measurements","volume":"385","author":"Gao","year":"2010","journal-title":"J. Hydrol."},{"key":"ref_35","doi-asserted-by":"crossref","unstructured":"Parajka, J., and Bl\u00f6schl, G. (2008). Spatio-temporal combination of MODIS images-potential for snow cover mapping. Water Resour. Res., 44.","DOI":"10.1029\/2007WR006204"},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"1361","DOI":"10.5194\/hess-13-1361-2009","article-title":"Cloud removal methodology from MODIS snow cover product","volume":"13","author":"Gafurov","year":"2009","journal-title":"Hydrol. Earth Syst. Sci."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"203","DOI":"10.1016\/j.jhydrol.2009.11.042","article-title":"A regional snow-line method for estimating snow cover from MODIS during cloud cover","volume":"381","author":"Parajka","year":"2010","journal-title":"J. Hydrol."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"496","DOI":"10.1016\/j.rse.2009.10.007","article-title":"Development and evaluation of a cloud-gap-filled MODIS daily snow-cover product","volume":"114","author":"Hall","year":"2010","journal-title":"Remote Sens. Environ."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"157","DOI":"10.1016\/j.jhydrol.2011.04.026","article-title":"Evaluation of a cloud-gap-filled MODIS daily snow cover product over the Pacific Northwest USA","volume":"404","author":"Gao","year":"2011","journal-title":"J. Hydrol."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"1515","DOI":"10.1016\/j.advwatres.2008.08.011","article-title":"Time-space continuity of daily maps of fractional snow cover and albedo from MODIS","volume":"31","author":"Dozier","year":"2008","journal-title":"Adv. Water Resour."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"367","DOI":"10.1016\/j.advwatres.2012.03.002","article-title":"Assessment of methods for mapping snow cover from MODIS","volume":"51","author":"Rittger","year":"2013","journal-title":"Adv. Water Resour."},{"key":"ref_42","first-page":"254","article-title":"A study on the altitudinal belts and environmental problems of the Karakoram and West Kunlun Mountains","volume":"4","author":"Zheng","year":"1989","journal-title":"J. Nat. Resour."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"169","DOI":"10.1016\/0022-1694(95)02913-3","article-title":"Snowmelt modelling by combining air temperature and a distributed radiation index","volume":"181","author":"Cazorzi","year":"1996","journal-title":"J. Hydrol."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"101","DOI":"10.3189\/S0022143000003087","article-title":"A distributed temperature-index ice-and snowmelt model including potential direct solar radiation","volume":"45","author":"Hock","year":"1999","journal-title":"J. Glaciol."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"447","DOI":"10.1007\/BF00140356","article-title":"Climate change and snow-cover duration in the Australian Alps","volume":"32","author":"Whetton","year":"1996","journal-title":"Clim. Change"},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"615","DOI":"10.1002\/(SICI)1097-0088(200005)20:6<615::AID-JOC489>3.0.CO;2-0","article-title":"Climate sensitivity of snow cover duration in Austria","volume":"20","author":"Hantel","year":"2000","journal-title":"Int. J. Climatol."},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"12752","DOI":"10.3390\/rs61212752","article-title":"Identifying changing snow cover characteristics in Central Asia between 1986 and 2014 from remote sensing data","volume":"6","author":"Dietz","year":"2014","journal-title":"Remote Sens."},{"key":"ref_48","unstructured":"Sun, C., Li, X., Chen, Y., Shen, B., and Li, W. (2015). Climate change and stream flow response of a mountain river in Western Kunlun Mountains. Clim. Change, under review."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"545","DOI":"10.5194\/tc-4-545-2010","article-title":"Understanding snow-transport processes shaping the mountain snow-cover","volume":"4","author":"Mott","year":"2010","journal-title":"The Cryosphere"},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"F01012","DOI":"10.1029\/2009JF001261","article-title":"Wind influence on snow depth distribution and accumulation over glaciers","volume":"115","author":"Dadic","year":"2010","journal-title":"J. Geophys. Res."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"234","DOI":"10.1080\/01431161.2013.866296","article-title":"Changes in snow and glacier cover in an arid watershed of the western Kunlun Mountains using multisource remote-sensing data","volume":"35","author":"She","year":"2014","journal-title":"Int. J. Remote Sens."}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/7\/4\/3426\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T20:43:53Z","timestamp":1760215433000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/7\/4\/3426"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015,3,24]]},"references-count":51,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2015,4]]}},"alternative-id":["rs70403426"],"URL":"https:\/\/doi.org\/10.3390\/rs70403426","relation":{},"ISSN":["2072-4292"],"issn-type":[{"value":"2072-4292","type":"electronic"}],"subject":[],"published":{"date-parts":[[2015,3,24]]}}}