{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,11]],"date-time":"2026-04-11T19:56:51Z","timestamp":1775937411426,"version":"3.50.1"},"reference-count":68,"publisher":"Institute of Electrical and Electronics Engineers (IEEE)","license":[{"start":{"date-parts":[[2022,1,1]],"date-time":"2022-01-01T00:00:00Z","timestamp":1640995200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["41971031"],"award-info":[{"award-number":["41971031"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["52079151"],"award-info":[{"award-number":["52079151"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["51779278"],"award-info":[{"award-number":["51779278"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["U1811464"],"award-info":[{"award-number":["U1811464"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"National Key Research and Development Program of China","award":["2017YFA0604300"],"award-info":[{"award-number":["2017YFA0604300"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing"],"published-print":{"date-parts":[[2022]]},"DOI":"10.1109\/jstars.2021.3136565","type":"journal-article","created":{"date-parts":[[2021,12,20]],"date-time":"2021-12-20T21:46:18Z","timestamp":1640036778000},"page":"1604-1616","source":"Crossref","is-referenced-by-count":17,"title":["Investigating the Efficacy of the SMAP Downscaled Soil Moisture Product for Drought Monitoring Based on Information Theory"],"prefix":"10.1109","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8688-8589","authenticated-orcid":false,"given":"Zemian","family":"Wu","sequence":"first","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1275-4171","authenticated-orcid":false,"given":"Jianxiu","family":"Qiu","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8217-261X","authenticated-orcid":false,"given":"Wade T.","family":"Crow","sequence":"additional","affiliation":[]},{"given":"Dagang","family":"Wang","sequence":"additional","affiliation":[]},{"given":"Zhengang","family":"Wang","sequence":"additional","affiliation":[]},{"given":"Xiaohu","family":"Zhang","sequence":"additional","affiliation":[]}],"member":"263","reference":[{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1029\/2018rg000618"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1109\/JSTARS.2019.2923555"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1002\/wcc.81"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1029\/2004JD005182"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1029\/2006jd008288"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1016\/j.agrformet.2005.07.012"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1016\/j.advwatres.2013.03.009"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1016\/j.rse.2018.02.065"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1175\/BAMS-D-21-0016.1"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1080\/15481603.2020.1857123"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1002\/j.1538-7305.1948.tb01338.x"},{"key":"ref12","doi-asserted-by":"publisher","DOI":"10.1029\/2017WR020991"},{"key":"ref13","doi-asserted-by":"publisher","DOI":"10.1109\/JPROC.2010.2043918"},{"key":"ref14","doi-asserted-by":"publisher","DOI":"10.3390\/rs10081302"},{"key":"ref15","doi-asserted-by":"publisher","DOI":"10.1016\/j.jhydrol.2017.07.033"},{"key":"ref16","doi-asserted-by":"publisher","DOI":"10.3390\/rs11030362"},{"key":"ref17","doi-asserted-by":"publisher","DOI":"10.1016\/j.jhydrol.2014.12.051"},{"key":"ref18","doi-asserted-by":"publisher","DOI":"10.1016\/j.rse.2016.02.064"},{"key":"ref19","doi-asserted-by":"publisher","DOI":"10.3390\/w9060377"},{"key":"ref20","doi-asserted-by":"publisher","DOI":"10.1175\/BAMS-D-12-00154.1"},{"key":"ref21","doi-asserted-by":"publisher","DOI":"10.1016\/j.agwat.2018.09.033"},{"key":"ref22","doi-asserted-by":"publisher","DOI":"10.1002\/2017jd027889"},{"key":"ref23","doi-asserted-by":"publisher","DOI":"10.2136\/vzj2018.04.0072"},{"key":"ref24","doi-asserted-by":"publisher","DOI":"10.1175\/JHM-D-15-0058.1"},{"key":"ref25","doi-asserted-by":"publisher","DOI":"10.1175\/JHM-D-18-0129.1"},{"key":"ref26","doi-asserted-by":"publisher","DOI":"10.1038\/sdata.2017.83"},{"key":"ref27","article-title":"HiWATER: Dataset of hydrometeorological observation network (an observation system of meteorological elements gradient of Daman superstation, 2017)","author":"Liu","year":"2018"},{"key":"ref28","article-title":"Qilian mountains integrated observatory network: Dataset of Heihe integrated observatory network (an observation system of meteorological elements gradient of Daman superstation, 2018","author":"Liu","year":"2019"},{"key":"ref29","article-title":"Qilian mountains integrated observatory network: Dataset of Heihe integrated observatory network (an observation system of meteorological elements gradient of Daman superstation, 2019)","author":"Liu","year":"2020"},{"key":"ref30","article-title":"Qilian mountains integrated observatory network: Dataset of Heihe integrated observatory network (an observation system of meteorological elements gradient of Daman superstation, 2020)","author":"Liu","year":"2021"},{"key":"ref31","article-title":"HiWATER: Dataset of hydrometeorological observation network (automatic weather station of Huazhaizi desert steppe station, 2017)","author":"Liu","year":"2016"},{"key":"ref32","article-title":"Qilian mountains integrated observatory network: Dataset of the Heihe River Basin integrated observatory network (automatic weather station of Huazhaizi desert steppe station, 2018)","author":"Liu","year":"2021"},{"key":"ref33","article-title":"Qilian mountains integrated observatory network: Dataset of Heihe integrated observatory network (automatic weather station of Huazhaizi desert steppe station, 2019)","author":"Liu","year":"2020"},{"key":"ref34","article-title":"Qilian mountains integrated observatory network: Dataset of Heihe integrated observatory network (automatic weather station of huazhaizi desert steppe station, 2020)","author":"Liu","year":"2017"},{"key":"ref35","article-title":"HiWATER: Dataset of Hydrometeorological observation network (automatic weather station of Heihe remote sensing station, 2017)","author":"Liu","year":"2018"},{"key":"ref36","article-title":"Qilian mountains integrated observatory network: Dataset of the Heihe River Basin integrated observatory network (automatic weather station of Heihe remote sensing station, 2018)","author":"Liu","year":"2021"},{"key":"ref37","article-title":"Qilian mountains integrated observatory network: Dataset of Heihe integrated observatory network (automatic weather station of Heihe remote sensing station, 2019)","author":"Liu","year":"2020"},{"key":"ref38","article-title":"Qilian mountains integrated observatory network: Dataset of Heihe integrated observatory network (automatic weather station of Heihe remote sensing station, 2020)","author":"Liu","year":"2021"},{"key":"ref39","doi-asserted-by":"publisher","DOI":"10.1016\/j.rse.2019.03.029"},{"key":"ref40","article-title":"SMAP enhanced L3 radiometer global daily 9 km EASE-Grid soil moisture, version 4","author":"ONeill","year":"2020"},{"key":"ref41","article-title":"SMAP Algorithm theoretical basis document: SMAP L1(BC) enhanced radiometer brightness temperature data product","author":"Chaubell","year":"2018"},{"key":"ref42","article-title":"Calibration and validation for the L23_SM_P version 7 and L23_SM_P_E version 4 data products","author":"ONeill","year":"2020"},{"key":"ref43","doi-asserted-by":"publisher","DOI":"10.1016\/j.rse.2019.111380"},{"key":"ref44","article-title":"SMAPSentinel-1 L2 radiometerradar 30-second scene 3 km EASE-Grid soil moisture, version 3,","author":"Das","year":"2020"},{"key":"ref45","article-title":"SMAP Algorithm theoretical basis document: SMAP-Sentinel L2 radarradiometer soil moisture (ActivePassive) data products: L2_SM_SP","author":"Das","year":"2019"},{"key":"ref46","article-title":"SMAP Algorithm theoretical basis document: Level 2 & 3 soil moisture (Passive) data products","author":"ONeill","year":"2020"},{"key":"ref47","article-title":"MOD09A1 MODISAqua surface reflectance 8-Day L3 global 500m SIN grid V006","author":"Vermote","year":"2015"},{"key":"ref48","article-title":"MOD17A2H MODISTerra gross primary productivity 8-Day L4 global 500m SIN grid V006","author":"Running","year":"2015"},{"key":"ref49","doi-asserted-by":"publisher","DOI":"10.2136\/sssaj2005.0117"},{"key":"ref50","doi-asserted-by":"publisher","DOI":"10.1016\/j.geoderma.2010.02.003"},{"key":"ref51","doi-asserted-by":"publisher","DOI":"10.5194\/soil-5-137-2019"},{"key":"ref52","doi-asserted-by":"publisher","DOI":"10.1029\/2019MS001784"},{"key":"ref53","doi-asserted-by":"publisher","DOI":"10.1002\/2013MS000293"},{"key":"ref54","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0169748"},{"key":"ref55","doi-asserted-by":"publisher","DOI":"10.2134\/agronj2012.0295"},{"key":"ref56","first-page":"23","article-title":"FAO Penman-Monteith equation,","volume-title":"Irrigation and Drainage Paper 56","author":"Allen","year":"1998"},{"key":"ref57","doi-asserted-by":"publisher","DOI":"10.1002\/2014WR015895"},{"key":"ref58","article-title":"State flood control and drought relief headquarters ministry, water resources of the Peoples Republic of China","year":"2018"},{"key":"ref59","doi-asserted-by":"publisher","DOI":"10.1029\/2012GL053470"},{"key":"ref60","doi-asserted-by":"publisher","DOI":"10.5194\/hess-16-3451-2012"},{"key":"ref61","doi-asserted-by":"publisher","DOI":"10.1175\/JHM-D-13-0125.1"},{"key":"ref62","doi-asserted-by":"publisher","DOI":"10.5194\/hess-14-271-2010"},{"key":"ref63","doi-asserted-by":"publisher","DOI":"10.1016\/j.agrformet.2019.107703"},{"key":"ref64","doi-asserted-by":"publisher","DOI":"10.1162\/089976603321780272"},{"key":"ref65","doi-asserted-by":"publisher","DOI":"10.1002\/2014GL060017"},{"key":"ref66","doi-asserted-by":"publisher","DOI":"10.3390\/rs9090969"},{"key":"ref67","doi-asserted-by":"publisher","DOI":"10.1016\/j.jag.2019.03.015"},{"key":"ref68","doi-asserted-by":"publisher","DOI":"10.1016\/j.rse.2018.04.011"}],"container-title":["IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing"],"original-title":[],"link":[{"URL":"http:\/\/xplorestaging.ieee.org\/ielx7\/4609443\/9656571\/09656640.pdf?arnumber=9656640","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,1,10]],"date-time":"2024-01-10T00:31:57Z","timestamp":1704846717000},"score":1,"resource":{"primary":{"URL":"https:\/\/ieeexplore.ieee.org\/document\/9656640\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022]]},"references-count":68,"URL":"https:\/\/doi.org\/10.1109\/jstars.2021.3136565","relation":{},"ISSN":["1939-1404","2151-1535"],"issn-type":[{"value":"1939-1404","type":"print"},{"value":"2151-1535","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022]]}}}