{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T21:53:26Z","timestamp":1774302806771,"version":"3.50.1"},"reference-count":28,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2022,7,13]],"date-time":"2022-07-13T00:00:00Z","timestamp":1657670400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Natural Science Foundation of China","award":["41820104005"],"award-info":[{"award-number":["41820104005"]}]},{"name":"National Natural Science Foundation of China","award":["42030112"],"award-info":[{"award-number":["42030112"]}]},{"name":"National Natural Science Foundation of China","award":["41904004"],"award-info":[{"award-number":["41904004"]}]},{"name":"National Natural Science Foundation of China","award":["2021JJ30808"],"award-info":[{"award-number":["2021JJ30808"]}]},{"name":"National Natural Science Foundation of China","award":["kq2202111"],"award-info":[{"award-number":["kq2202111"]}]},{"name":"National Natural Science Foundation of China","award":["506021729"],"award-info":[{"award-number":["506021729"]}]},{"name":"Natural Science Foundation of Hunan Province of China","award":["41820104005"],"award-info":[{"award-number":["41820104005"]}]},{"name":"Natural Science Foundation of Hunan Province of China","award":["42030112"],"award-info":[{"award-number":["42030112"]}]},{"name":"Natural Science Foundation of Hunan Province of China","award":["41904004"],"award-info":[{"award-number":["41904004"]}]},{"name":"Natural Science Foundation of Hunan Province of China","award":["2021JJ30808"],"award-info":[{"award-number":["2021JJ30808"]}]},{"name":"Natural Science Foundation of Hunan Province of China","award":["kq2202111"],"award-info":[{"award-number":["kq2202111"]}]},{"name":"Natural Science Foundation of Hunan Province of China","award":["506021729"],"award-info":[{"award-number":["506021729"]}]},{"name":"Changsha Municipal Natural Science Foundation","award":["41820104005"],"award-info":[{"award-number":["41820104005"]}]},{"name":"Changsha Municipal Natural Science Foundation","award":["42030112"],"award-info":[{"award-number":["42030112"]}]},{"name":"Changsha Municipal Natural Science Foundation","award":["41904004"],"award-info":[{"award-number":["41904004"]}]},{"name":"Changsha Municipal Natural Science Foundation","award":["2021JJ30808"],"award-info":[{"award-number":["2021JJ30808"]}]},{"name":"Changsha Municipal Natural Science Foundation","award":["kq2202111"],"award-info":[{"award-number":["kq2202111"]}]},{"name":"Changsha Municipal Natural Science Foundation","award":["506021729"],"award-info":[{"award-number":["506021729"]}]},{"name":"Fundamental Research Funds for the Central Universities of Central South University","award":["41820104005"],"award-info":[{"award-number":["41820104005"]}]},{"name":"Fundamental Research Funds for the Central Universities of Central South University","award":["42030112"],"award-info":[{"award-number":["42030112"]}]},{"name":"Fundamental Research Funds for the Central Universities of Central South University","award":["41904004"],"award-info":[{"award-number":["41904004"]}]},{"name":"Fundamental Research Funds for the Central Universities of Central South University","award":["2021JJ30808"],"award-info":[{"award-number":["2021JJ30808"]}]},{"name":"Fundamental Research Funds for the Central Universities of Central South University","award":["kq2202111"],"award-info":[{"award-number":["kq2202111"]}]},{"name":"Fundamental Research Funds for the Central Universities of Central South University","award":["506021729"],"award-info":[{"award-number":["506021729"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>The past decade has witnessed the rapid development of the SRTM (Shuttle Radar Topography Mission) DEM (digital elevation model) in engineering applications and scientific research. The near-global SRTM DEM was generated based on radar interference theory. The latest version of the SRTM DEM with a resolution of 1 arc-second has been widely used in various applications. However, many studies have shown the poor elevation accuracy of the SRTM DEM in forested areas. Recent developments in the field of spaceborne lidar have provided an additional chance to correct the elevation error of the SRTM DEM in forested areas. We developed an easy-to-use method to correct the elevation error of the SRTM DEM based on the spatial interpolation method using the recent Ice, Cloud and land Elevation Satellite-2 data. First, an ICESat-2 terrain control point selection criterion was proposed to reject some erroneous ICESat-2 terrains caused by many factors. Second, we derived the elevation correction surface based on the interpolation method using the refined ICESat-2 terrain. Finally, a corrected SRTM DEM of forested areas was generated through the obtained elevation correction surface. The proposed method was tested in the typical forested area located in Massachusetts, USA. The results show that the RMSE of the selected terrain control points in vegetation areas and non-vegetation areas are 1.03 and 0.68 m, respectively. The corrected SRTM DEM have an RMSE of 4.2 m which is significantly less than that of the original SRTM DEM with an RMSE of 9.8 m, which demonstrates the proposed method is feasible to correct the elevation error in forested areas. It can be concluded that the proposed method obviously decreases the elevation error of the original SRTM DEM.<\/jats:p>","DOI":"10.3390\/rs14143380","type":"journal-article","created":{"date-parts":[[2022,7,14]],"date-time":"2022-07-14T00:12:40Z","timestamp":1657757560000},"page":"3380","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":37,"title":["A Method for SRTM DEM Elevation Error Correction in Forested Areas Using ICESat-2 Data and Vegetation Classification Data"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3974-9794","authenticated-orcid":false,"given":"Yi","family":"Li","sequence":"first","affiliation":[{"name":"School of Geoscience and Info-Physics, Central South University, Changsha 410083, China"}]},{"given":"Haiqiang","family":"Fu","sequence":"additional","affiliation":[{"name":"School of Geoscience and Info-Physics, Central South University, Changsha 410083, China"}]},{"given":"Jianjun","family":"Zhu","sequence":"additional","affiliation":[{"name":"School of Geoscience and Info-Physics, Central South University, Changsha 410083, China"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-6898-4995","authenticated-orcid":false,"given":"Kefu","family":"Wu","sequence":"additional","affiliation":[{"name":"School of Geoscience and Info-Physics, Central South University, Changsha 410083, China"}]},{"given":"Panfeng","family":"Yang","sequence":"additional","affiliation":[{"name":"School of Geoscience and Info-Physics, Central South University, Changsha 410083, China"}]},{"given":"Li","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Geoscience and Info-Physics, Central South University, Changsha 410083, China"}]},{"given":"Shijuan","family":"Gao","sequence":"additional","affiliation":[{"name":"School of Geoscience and Info-Physics, Central South University, Changsha 410083, China"}]}],"member":"1968","published-online":{"date-parts":[[2022,7,13]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"45","DOI":"10.1016\/j.rse.2014.09.029","article-title":"Slope deformation prior to Zhouqu, China landslide from InSAR time series analysis","volume":"156","author":"Sun","year":"2015","journal-title":"Remote Sens. 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