{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,20]],"date-time":"2025-11-20T13:00:12Z","timestamp":1763643612322,"version":"build-2065373602"},"reference-count":91,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2022,8,25]],"date-time":"2022-08-25T00:00:00Z","timestamp":1661385600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Centre National d\u2019Etudes Spatiales (CNES)"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>The penetration capability of P-band radar waves through dense vegetation, along with the ability of tomography to separate the contributions of different layers in a vertical reflectivity profile, make P-band radar tomography a promising tool for digital terrain modeling in forested areas, specifically in dense tropical forests under which terrain topography remains poorly known. This paper aims to assess the overall quality of a digital terrain model (DTM) produced using tomographic processing of airborne P-band SAR imagery acquired during the TropiSAR campaign in French Guiana. Many quality descriptors are used to evaluate the quality of this DTM. Position and slope accuracies are computed based on a lidar DTM considered as the reference, and the impact of several parameters on these accuracies is studied, namely, slope, slope orientation, off-nadir angle and local incidence angle. The realism of the landforms is also studied according to geomorphological criteria. The results of this multicriteria accuracy assessment show the high potential of P-band SAR tomography in depicting the topography under forests, despite the intrinsic limitations related to the slant range geometry: the absolute elevation error is around 2 m; the slope is overestimated with an error of about 16\u00b0, mainly due to a processing artifact for which easy and direct solutions exist. Indeed, this error is equal to about 3\u00b0 in flat artifact-free areas. These errors vary depending on the acquisition parameters and the local topography. The shapes are globally well preserved. These results are also discussed in the frame of the upcoming BIOMASS mission developed by the European Space Agency (ESA) and expected to be launched in 2024.<\/jats:p>","DOI":"10.3390\/rs14174173","type":"journal-article","created":{"date-parts":[[2022,8,26]],"date-time":"2022-08-26T02:04:32Z","timestamp":1661479472000},"page":"4173","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Multicriteria Accuracy Assessment of Digital Elevation Models (DEMs) Produced by Airborne P-Band Polarimetric SAR Tomography in Tropical Rainforests"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8379-5600","authenticated-orcid":false,"given":"Mhamad","family":"El Hage","sequence":"first","affiliation":[{"name":"Geospatial Studies Laboratory, Lebanese University, Tripoli 1300, Lebanon"}]},{"given":"Ludovic","family":"Villard","sequence":"additional","affiliation":[{"name":"CESBIO (Centre d\u2019Etudes Spatiales de la Biosph\u00e8re), University of Toulouse, CNES\/CNRS\/INRAE\/IRD\/UPS, 31400 Toulouse, France"}]},{"given":"Yue","family":"Huang","sequence":"additional","affiliation":[{"name":"Institut d\u2019Electronique et Techniques du num\u00e9Rique (IETR), University of Rennes 1, 35000 Rennes, France"}]},{"given":"Laurent","family":"Ferro-Famil","sequence":"additional","affiliation":[{"name":"ISAE SUPAERO, University of Toulouse, 31400 Toulouse, France"},{"name":"CESBIO (Centre d\u2019Etudes Spatiales de la Biosph\u00e8re), University of Toulouse, CNES\/CNRS\/INRAE\/IRD\/UPS, 31400 Toulouse, France"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8099-1021","authenticated-orcid":false,"given":"Thierry","family":"Koleck","sequence":"additional","affiliation":[{"name":"CESBIO (Centre d\u2019Etudes Spatiales de la Biosph\u00e8re), University of Toulouse, CNES\/CNRS\/INRAE\/IRD\/UPS, 31400 Toulouse, France"}]},{"given":"Thuy","family":"Le Toan","sequence":"additional","affiliation":[{"name":"CESBIO (Centre d\u2019Etudes Spatiales de la Biosph\u00e8re), University of Toulouse, CNES\/CNRS\/INRAE\/IRD\/UPS, 31400 Toulouse, France"}]},{"given":"Laurent","family":"Polidori","sequence":"additional","affiliation":[{"name":"PPGG, Insitute of Geoscience, UFPA, Bel\u00e9m 66075-110, PA, Brazil"},{"name":"CESBIO (Centre d\u2019Etudes Spatiales de la Biosph\u00e8re), University of Toulouse, CNES\/CNRS\/INRAE\/IRD\/UPS, 31400 Toulouse, France"}]}],"member":"1968","published-online":{"date-parts":[[2022,8,25]]},"reference":[{"key":"ref_1","unstructured":"Hengl, T., and Reuter, H.I. (2009). Geomorphometry: Concepts, Software, Applications, Elsevier."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"69","DOI":"10.1590\/1809-4392202103091","article-title":"Digital Elevation Modeling through Forests: The Challenge of the Amazon","volume":"52","author":"Polidori","year":"2022","journal-title":"Acta Amaz."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"31","DOI":"10.1177\/0309133308089496","article-title":"Airborne LiDAR for DEM Generation: Some Critical Issues","volume":"32","author":"Liu","year":"2008","journal-title":"Prog. Phys. Geogr. Earth Environ."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"6524","DOI":"10.3390\/rs6076524","article-title":"Algorithm for Extracting Digital Terrain Models under Forest Canopy from Airborne LiDAR Data","volume":"6","author":"Maguya","year":"2014","journal-title":"Remote Sens."},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"\u0160tular, B., Lozi\u0107, E., and Eichert, S. (2021). Airborne LiDAR-Derived Digital Elevation Model for Archaeology. Remote Sens., 13.","DOI":"10.3390\/rs13091855"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"83","DOI":"10.1016\/S0924-2716(99)00014-3","article-title":"A Comparison between Photogrammetry and Laser Scanning","volume":"54","author":"Baltsavias","year":"1999","journal-title":"ISPRS J. Photogramm. Remote Sens."},{"key":"ref_7","unstructured":"Leberl, F. (1989). Radargrammetric Image Processing, Artech House."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"1100","DOI":"10.1109\/LGRS.2011.2157803","article-title":"High-Resolution SAR Radargrammetry: A First Application With COSMO-SkyMed SpotLight Imagery","volume":"8","author":"Capaldo","year":"2011","journal-title":"IEEE Geosci. Remote Sens. Lett."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"2601","DOI":"10.1109\/TGRS.2012.2211605","article-title":"Stereo Radargrammetry With Radarsat-2 in the Canadian Arctic","volume":"51","author":"Toutin","year":"2013","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_10","doi-asserted-by":"crossref","unstructured":"Paquerault, S., Maitre, H., and Nicolas, J. (1996, January 31). Radarclinometry for ERS-1 Data Mapping. Proceedings of the IGARSS \u201996. 1996 International Geoscience and Remote Sensing Symposium, Lincoln, NE, USA.","DOI":"10.1109\/IGARSS.1996.516386"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"2877","DOI":"10.1080\/01431160500127849","article-title":"Retrieval of Elevation by Radarclinometry in Arid or Semi-arid Regions","volume":"26","author":"Zribi","year":"2005","journal-title":"Int. J. Remote Sens."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"4993","DOI":"10.1029\/JB091iB05p04993","article-title":"Topographic Mapping from Interferometric Synthetic Aperture Radar Observations","volume":"91","author":"Zebker","year":"1986","journal-title":"J. Geophys. Res. Solid Earth"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1029\/2005RG000183","article-title":"The Shuttle Radar Topography Mission","volume":"45","author":"Farr","year":"2007","journal-title":"Rev. Geophys."},{"key":"ref_14","doi-asserted-by":"crossref","unstructured":"Fu, H., Wang, C., Zhu, J., Xie, Q., and Zhang, B. (2016). Estimation of Pine Forest Height and Underlying DEM Using Multi-Baseline P-Band PolInSAR Data. Remote Sens., 8.","DOI":"10.3390\/rs8100820"},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Fu, H., Zhu, J., Wang, C., Wang, H., and Zhao, R. (2017). Underlying Topography Estimation over Forest Areas Using High-Resolution P-Band Single-Baseline PolInSAR Data. Remote Sens., 9.","DOI":"10.3390\/rs9040363"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"6774","DOI":"10.1109\/TGRS.2019.2908517","article-title":"Digital Terrain Model Retrieval in Tropical Forests Through P-Band SAR Tomography","volume":"57","author":"Tebaldini","year":"2019","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_17","unstructured":"Dubois-Fernandez, P., Oriot, H., Coulombeix, C., Cantalloube, H., Plessis, O.R.D., Toan, T.L., Daniel, S., Chave, J., Blanc, L., and Davidson, M. (2010, January 7\u201310). TropiSAR, a SAR Data Acquisition Campaign in French Guiana. Proceedings of the 8th European Conference on Synthetic Aperture Radar, Aachen, Germany."},{"key":"ref_18","doi-asserted-by":"crossref","unstructured":"Huang, Y., Ferro-Famil, L., and Lardeux, C. (2011, January 24\u201329). Polarimetric SAR Tomography of Tropical Forests at P-Band. Proceedings of the 2011 IEEE International Geoscience and Remote Sensing Symposium, Vancouver, BC, Canada.","DOI":"10.1109\/IGARSS.2011.6049321"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"928","DOI":"10.1109\/LGRS.2019.2937382","article-title":"Temporal Decorrelation of Tropical Dense Forest at C-Band: First Insights From the TropiScat-2 Experiment","volume":"17","author":"Villard","year":"2020","journal-title":"IEEE Geosci. Remote Sens. Lett."},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Zink, M., Fiedler, H., Hajnsek, I., Krieger, G., Moreira, A., and Werner, M. (August, January 31). The TanDEM-X Mission Concept. Proceedings of the 2006 IEEE International Symposium on Geoscience and Remote Sensing, Denver, CO, USA.","DOI":"10.1109\/IGARSS.2006.501"},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"Tebaldini, S., and Ferro-Famil, L. (2017, January 23). SAR Tomography from Bistatic Single-Pass Interferometers. Proceedings of the 2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), Worth, TX, USA.","DOI":"10.1109\/IGARSS.2017.8126912"},{"key":"ref_22","doi-asserted-by":"crossref","unstructured":"Hensley, S., Van Zyl, J., Lavalle, M., Neumann, M., Michel, T., Muellerschoen, R., Pinto, N., Simard, M., and Moghaddam, M. (2015, January 27). L-Band and P-Band Studies of Vegetation at JPL. Proceedings of the 2015 IEEE Radar Conference, Marriott Crystal Gateway, Arlington, VA, USA.","DOI":"10.1109\/RadarConf.2015.7411937"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"2850","DOI":"10.1016\/j.rse.2011.03.020","article-title":"The BIOMASS Mission: Mapping Global Forest Biomass to Better Understand the Terrestrial Carbon Cycle","volume":"115","author":"Quegan","year":"2011","journal-title":"Remote Sens. Environ."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"44","DOI":"10.1016\/j.rse.2019.03.032","article-title":"The European Space Agency BIOMASS Mission: Measuring Forest above-Ground Biomass from Space","volume":"227","author":"Quegan","year":"2019","journal-title":"Remote Sens. Environ."},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Tebaldini, S., Mariotti D\u2019Alessandro, M., Dinh, H.T.M., and Rocca, F. (2011, January 24\u201329). P Band Penetration in Tropical and Boreal Forests: Tomographical Results. Proceedings of the 2011 IEEE International Geoscience and Remote Sensing Symposium, Vancouver, BC, Canada.","DOI":"10.1109\/IGARSS.2011.6050167"},{"key":"ref_26","first-page":"1","article-title":"Long-Term Trends of P-Band Temporal Decorrelation Over a Tropical Dense Forest-Experimental Results for the BIOMASS Mission","volume":"60","author":"Villard","year":"2022","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"3189","DOI":"10.1109\/JSTARS.2016.2520900","article-title":"The Dual-Band PolInSAR Method for Forest Parametrization","volume":"9","author":"Shiroma","year":"2016","journal-title":"IEEE J. Sel. Top. Appl. Earth Obs. Remote Sens."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"2876","DOI":"10.1109\/TGRS.2018.2878357","article-title":"Underlying Topography Estimation Over Forest Areas Using Single-Baseline InSAR Data","volume":"57","author":"Fu","year":"2019","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_29","doi-asserted-by":"crossref","unstructured":"Sneeuw, N., Nov\u00e1k, P., Crespi, M., and Sans\u00f2, F. (2016). Principles and Applications of Polarimetric SAR Tomography for the Characterization of Complex Environments. VIII Hotine-Marussi Symposium on Mathematical Geodesy, Springer International Publishing.","DOI":"10.1007\/978-3-319-30530-1"},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"30","DOI":"10.1109\/MGRS.2019.2963093","article-title":"Forest SAR Tomography: Principles and Applications","volume":"8","author":"Aghababaei","year":"2020","journal-title":"IEEE Geosci. Remote Sens. Mag."},{"key":"ref_31","unstructured":"Chandra, M., and Hounam, D. (1998). Feasibility of a Spaceborne P-Band SAR for Land Surface Imaging, VED."},{"key":"ref_32","unstructured":"Baghdadi, N., and Zribi, M. (2016). 9\u2014Forest Biomass from Radar Remote Sensing. Land Surface Remote Sensing in Agriculture and Forest, Elsevier."},{"key":"ref_33","first-page":"56","article-title":"Cartographier Le Relief Sous Les For\u00eats et Le Substrat Sous Les D\u00e9serts de Sable: Les Attentes de La Mission Radar Biomass","volume":"154","author":"Polidori","year":"2018","journal-title":"Rev. XYZ"},{"key":"ref_34","doi-asserted-by":"crossref","unstructured":"Hajnsek, I., and Desnos, Y.-L. (2021). Forest Applications. Polarimetric Synthetic Aperture Radar: Principles and Application, Springer International Publishing. Remote Sensing and Digital Image Processing.","DOI":"10.1007\/978-3-030-56504-6"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"2142","DOI":"10.1109\/36.868873","article-title":"First Demonstration of Airborne SAR Tomography Using Multibaseline L-Band Data","volume":"38","author":"Reigber","year":"2000","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"5283","DOI":"10.1109\/TGRS.2012.2231081","article-title":"Wavelet-Based Compressed Sensing for SAR Tomography of Forested Areas","volume":"51","author":"Aguilera","year":"2013","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"1860","DOI":"10.1109\/LGRS.2017.2738672","article-title":"On the Estimation of Ground and Volume Polarimetric Covariances in Forest Scenarios with SAR Tomography","volume":"14","author":"Pardini","year":"2017","journal-title":"IEEE Geosci. Remote Sens. Lett."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"232","DOI":"10.1109\/TGRS.2011.2159614","article-title":"Multibaseline Polarimetric SAR Tomography of a Boreal Forest at P- and L-Bands","volume":"50","author":"Tebaldini","year":"2012","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_39","unstructured":"Saatchi, S.S., Chave, J., Labriere, N., Barbier, N., R\u00e9jou-M\u00e9chain, M., Ferraz, A., and Tao, S. (2019). AfriSAR: Aboveground Biomass for Lope, Mabounie, Mondah, and Rabi Sites, Gabon."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"87","DOI":"10.1016\/S0166-2481(08)00004-4","article-title":"Chapter 4 Preparation of DEMs for Geomorphometric Analysis","volume":"33","author":"Hengl","year":"2009","journal-title":"Developments in Soil Science"},{"key":"ref_41","doi-asserted-by":"crossref","unstructured":"Polidori, L., and El Hage, M. (2020). Digital Elevation Model Quality Assessment Methods: A Critical Review. Remote Sens., 12.","DOI":"10.3390\/rs12213522"},{"key":"ref_42","doi-asserted-by":"crossref","unstructured":"Mesa-Mingorance, J.L., and Ariza-L\u00f3pez, F.J. (2020). Accuracy Assessment of Digital Elevation Models (DEMs): A Critical Review of Practices of the Past Three Decades. Remote Sens., 12.","DOI":"10.3390\/rs12162630"},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"3617","DOI":"10.1109\/JSTARS.2018.2851606","article-title":"In Situ Reference Datasets From the TropiSAR and AfriSAR Campaigns in Support of Upcoming Spaceborne Biomass Missions","volume":"11","author":"Tao","year":"2018","journal-title":"IEEE J. Sel. Top. Appl. Earth Obs. Remote Sens."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"331","DOI":"10.14358\/PERS.70.3.331","article-title":"Accuracy of Airborne Lidar-Derived Elevation","volume":"70","author":"Hodgson","year":"2004","journal-title":"Photogramm. Eng. Remote Sens."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.isprsjprs.2008.09.007","article-title":"Full-Waveform Topographic Lidar: State-of-the-Art","volume":"64","author":"Mallet","year":"2009","journal-title":"ISPRS J. Photogramm. Remote Sens."},{"key":"ref_46","doi-asserted-by":"crossref","unstructured":"Dong, P., and Chen, Q. (2017). LiDAR Remote Sensing and Applications, CRC Press.","DOI":"10.4324\/9781351233354"},{"key":"ref_47","unstructured":"Baghdadi, N., and Zribi, M. (2016). 2\u2014SAR Imaging Using Coherent Modes of Diversity: SAR Polarimetry, Interferometry and Tomography. Microwave Remote Sensing of Land Surface, Elsevier."},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"4132","DOI":"10.1109\/TGRS.2009.2023785","article-title":"Algebraic Synthesis of Forest Scenarios From Multibaseline PolInSAR Data","volume":"47","author":"Tebaldini","year":"2009","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"1775","DOI":"10.1109\/TGRS.2015.2488358","article-title":"Phase Calibration of Airborne Tomographic SAR Data via Phase Center Double Localization","volume":"54","author":"Tebaldini","year":"2016","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_50","unstructured":"Ferro-Famil, L., and Tebaldini, S. (February, January 28). ML Tomography Based on the MB RVoG Model: Optimal Estimation of a Covariance Matrix Structured as a Sum of Two Kronecker Products. Proceedings of the POLinSAR 2013 Workshop, Frascati, Italy."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"71","DOI":"10.1109\/MAES.2005.1499278","article-title":"Multibaseline Cross-Track SAR Interferometry: A Signal Processing Perspective","volume":"20","author":"Gini","year":"2005","journal-title":"IEEE Aerosp. Electron. Syst. Mag."},{"key":"ref_52","first-page":"10","article-title":"R\u00e9flexions Sur La Qualit\u00e9 Des Mod\u00e8les Num\u00e9riques de Terrain","volume":"139","author":"Polidori","year":"1995","journal-title":"Bull. Soc. Fran\u00e7aise Photogramm\u00e9trie T\u00e9l\u00e9d\u00e9tection"},{"key":"ref_53","unstructured":"El Hage, M. (2012). Etude de la Qualit\u00e9 G\u00e9omorphologique de Mod\u00e8les Num\u00e9riques de Terrain Issus de L\u2019imagerie Spatiale. [Ph.D. Thesis, CNAM]."},{"key":"ref_54","doi-asserted-by":"crossref","first-page":"467","DOI":"10.1590\/S1982-21702014000200027","article-title":"Digital Elevation Model Validation with No Ground Control: Application to the Topodata Dem in Brazil","volume":"20","author":"Polidori","year":"2014","journal-title":"Bol. Ci\u00eancias Geod\u00e9sicas"},{"key":"ref_55","first-page":"19","article-title":"Application de La Loi de Benford Au Contr\u00f4le de Qualit\u00e9 Des Mod\u00e8les Num\u00e9riques de Terrain","volume":"158","author":"Polidori","year":"2019","journal-title":"Rev. XYZ"},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"121","DOI":"10.1016\/S0166-2481(08)00005-6","article-title":"Chapter 5 Geostatistical Simulation and Error Propagation in Geomorphometry","volume":"33","author":"Hengl","year":"2009","journal-title":"Developments in Soil Science"},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"227","DOI":"10.1016\/S0166-2481(08)00009-3","article-title":"Chapter 9 Landforms and Landform Elements in Geomorphometry","volume":"33","author":"Hengl","year":"2009","journal-title":"Developments in Soil Science"},{"key":"ref_58","doi-asserted-by":"crossref","first-page":"154","DOI":"10.1016\/S0022-1694(00)00229-8","article-title":"Error in a USGS 30-Meter Digital Elevation Model and Its Impact on Terrain Modeling","volume":"233","author":"Holmes","year":"2000","journal-title":"J. Hydrol."},{"key":"ref_59","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/S0016-7061(01)00136-7","article-title":"Fundamental Quantitative Methods of Land Surface Analysis","volume":"107","author":"Shary","year":"2002","journal-title":"Geoderma"},{"key":"ref_60","doi-asserted-by":"crossref","unstructured":"Heuvelink, G.B.M. (1998). Error Propagation in Environmental Modelling with GIS, Taylor and Francis.","DOI":"10.4324\/9780203016114"},{"key":"ref_61","doi-asserted-by":"crossref","first-page":"237","DOI":"10.1559\/152304001782152991","article-title":"On the Uncertainty of Local Shape of Lines and Surfaces","volume":"28","author":"Schneider","year":"2001","journal-title":"Cartogr. Geogr. Inf. Sci."},{"key":"ref_62","doi-asserted-by":"crossref","first-page":"1909","DOI":"10.1002\/1099-1085(20000815\/30)14:11\/12<1909::AID-HYP45>3.0.CO;2-6","article-title":"Assessing the quality for hydrological applications of digital elevation models derived from contours","volume":"14","author":"Wise","year":"2000","journal-title":"Hydrol. Process."},{"key":"ref_63","doi-asserted-by":"crossref","unstructured":"Li, Z., Zhu, C., and Gold, C. (2005). Accuracy of Digital Terrain Models. Digital Terrain Modeling Principles and Methodology, Taylor and Francis.","DOI":"10.1201\/9780203357132"},{"key":"ref_64","doi-asserted-by":"crossref","first-page":"4","DOI":"10.1016\/j.geomorph.2007.06.026","article-title":"The Influence of Elevation Uncertainty on Derivation of Topographic Indices","volume":"111","author":"Hebeler","year":"2009","journal-title":"Geomorphology"},{"key":"ref_65","doi-asserted-by":"crossref","unstructured":"Heuvelink, G.B.M. (2002). Analysing Uncertainty Propagation in GIS: Why Is It Not That Simple?. Uncertainty in Remote Sensing and GIS, John Wiley & Sons, Ltd.","DOI":"10.1002\/0470035269.ch10"},{"key":"ref_66","doi-asserted-by":"crossref","first-page":"35","DOI":"10.1111\/j.1538-4632.1997.tb00944.x","article-title":"Modeling the Uncertainty of Slope and Aspect Estimates Derived from Spatial Databases","volume":"29","author":"Hunter","year":"1997","journal-title":"Geogr. Anal."},{"key":"ref_67","doi-asserted-by":"crossref","first-page":"1015","DOI":"10.1016\/j.cageo.2005.02.014","article-title":"Error Propagation of DEM-Based Surface Derivatives","volume":"31","author":"Oksanen","year":"2005","journal-title":"Comput. Geosci."},{"key":"ref_68","doi-asserted-by":"crossref","first-page":"255","DOI":"10.1111\/phor.12196","article-title":"Effect of Image-Matching Parameters and Local Morphology on the Geomorphological Quality of SPOT DEMs","volume":"32","author":"Simonetto","year":"2017","journal-title":"Photogramm. Rec."},{"key":"ref_69","doi-asserted-by":"crossref","first-page":"2121","DOI":"10.1109\/TGRS.2004.834641","article-title":"Comparison of Stereo-Extracted DTM from Different High-Resolution Sensors: SPOT-5, EROS-a, IKONOS-II, and QuickBird","volume":"42","author":"Toutin","year":"2004","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_70","doi-asserted-by":"crossref","first-page":"519","DOI":"10.1111\/0031-868X.00140","article-title":"Accuracy Assessment of Digital Elevation Models Generated Using the Erdas Imagine Orthomax Digital Photogrammetric System","volume":"16","author":"Gooch","year":"1999","journal-title":"Photogramm. Rec."},{"key":"ref_71","doi-asserted-by":"crossref","first-page":"793","DOI":"10.1111\/0031-868X.00152","article-title":"Application of Digital Photogrammetry to Complex Topography for Geomorphological Research","volume":"16","author":"Lane","year":"2000","journal-title":"Photogramm. Rec."},{"key":"ref_72","doi-asserted-by":"crossref","first-page":"228","DOI":"10.1016\/S0924-2716(02)00123-5","article-title":"Impact of Terrain Slope and Aspect on Radargrammetric DEM Accuracy","volume":"57","author":"Toutin","year":"2002","journal-title":"ISPRS J. Photogramm. Remote Sens."},{"key":"ref_73","first-page":"81","article-title":"The Problem of Scale-Specific and Scale-Free Approaches in Geomorphometry","volume":"28","author":"Shary","year":"2005","journal-title":"Geogr. Fis. E Din. Quat."},{"key":"ref_74","unstructured":"El Hage, M., Simonetto, E., Faour, G., and Polidori, L. (2010, January 1\u20133). Impact of DEM Reconstruction Parameters on Topographic Indices. Proceedings of the International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Paris, France."},{"key":"ref_75","doi-asserted-by":"crossref","first-page":"684","DOI":"10.1590\/s1982-21702017000400045","article-title":"Effect of digital elevation model mesh size on geomorphic indices: A case study of the Iva\u00ed River watershed\u2014State of Paran\u00e1, Brazil","volume":"23","author":"Santos","year":"2017","journal-title":"Bol. De Ci\u00eancias Geod\u00e9sicas"},{"key":"ref_76","first-page":"1161","article-title":"An Accuracy Assessment of Cartosat-1 Stereo Image Data-Derived Digital Elevation Models: A Case Study of the Drum Mountains, Utah","volume":"37","author":"Evans","year":"2008","journal-title":"Int. Arch. Photogramm. Remote Sens. Spat. Inf. Sci."},{"key":"ref_77","doi-asserted-by":"crossref","first-page":"1283","DOI":"10.1016\/j.cageo.2005.11.008","article-title":"Finding the Right Pixel Size","volume":"32","author":"Hengl","year":"2006","journal-title":"Comput. Geosci."},{"key":"ref_78","doi-asserted-by":"crossref","unstructured":"Zhou, Q., Lees, B., and Tang, G. (2008). Models of Topography. Lecture Notes in Geoinformation and Cartography. Advances in Digital Terrain Analysis, Springer.","DOI":"10.1007\/978-3-540-77800-4"},{"key":"ref_79","doi-asserted-by":"crossref","first-page":"31","DOI":"10.1016\/S0166-2481(08)00002-0","article-title":"Chapter 2 Mathematical and Digital Models of the Land Surface","volume":"33","author":"Hengl","year":"2009","journal-title":"Developments in Soil Science"},{"key":"ref_80","unstructured":"Burrough, P.A., McDonnell, R., McDonnell, R.A., and Lloyd, C.D. (2015). Principles of Geographical Information Systems, OUP Oxford."},{"key":"ref_81","doi-asserted-by":"crossref","unstructured":"Rodr\u00edguez-Iturbe, I., and Rinaldo, A. (1997). Fractal River Basins: Chance and Self-Organization, Cambridge University Press.","DOI":"10.1063\/1.882305"},{"key":"ref_82","doi-asserted-by":"crossref","first-page":"2068","DOI":"10.1002\/esp.4172","article-title":"Regional Watershed Characterization and Classification with River Network Analyses","volume":"42","author":"Gaucherel","year":"2017","journal-title":"Earth Surf. Processes Landf."},{"key":"ref_83","doi-asserted-by":"crossref","unstructured":"Smessaert, M., Villard, L., Polidori, L., Daniel, S., and Ferro-Famil, L. (2021, January 11\u201316). Improvement Prospects of DTM Reconstruction from P-Band SAR Tomography Over Tropical Dense Forests. Proceedings of the 2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, Brussels, Belgium.","DOI":"10.1109\/IGARSS47720.2021.9553623"},{"key":"ref_84","doi-asserted-by":"crossref","first-page":"234","DOI":"10.2307\/143141","article-title":"A Computer Movie Simulating Urban Growth in the Detroit Region","volume":"46","author":"Tobler","year":"1970","journal-title":"Econ. Geogr."},{"key":"ref_85","doi-asserted-by":"crossref","first-page":"284","DOI":"10.1111\/j.1467-8306.2004.09402005.x","article-title":"Tobler\u2019s First Law and Spatial Analysis","volume":"94","author":"Miller","year":"2004","journal-title":"Ann. Assoc. Am. Geogr."},{"key":"ref_86","doi-asserted-by":"crossref","first-page":"170","DOI":"10.1016\/j.isprsjprs.2006.02.003","article-title":"Generation of DSMs from SPOT-5 in-Track HRS and across-Track HRG Stereo Data Using Spatiotriangulation and Autocalibration","volume":"60","author":"Toutin","year":"2006","journal-title":"ISPRS J. Photogramm. Remote Sens."},{"key":"ref_87","unstructured":"Papasaika, H., and Baltsavias, E. (2009, January 6\u201311). Investigations on the Relation of Geomorphological Parameters to DEM Accuracy. Proceedings of the Geomorphometry Conference, Melbourne, Australia."},{"key":"ref_88","unstructured":"Ruck, G., Barrick, D., and Stuart, W. (2002). Radar Cross Section Handbook, Peninsula Publishing."},{"key":"ref_89","doi-asserted-by":"crossref","first-page":"4430","DOI":"10.1109\/TGRS.2013.2246573","article-title":"Phenomenology of Ground Scattering in a Tropical Forest Through Polarimetric Synthetic Aperture Radar Tomography","volume":"51","author":"Tebaldini","year":"2013","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_90","doi-asserted-by":"crossref","unstructured":"Abdo, R., Ferro-Famil, L., Boutet, F., and Allain-Bailhache, S. (2021). Analysis of the Double-Bounce Interaction between a Random Volume and an Underlying Ground, Using a Controlled High-Resolution PolTomoSAR Experiment. Remote Sens., 13.","DOI":"10.3390\/rs13040636"},{"key":"ref_91","doi-asserted-by":"crossref","first-page":"9086","DOI":"10.1109\/TGRS.2020.3044150","article-title":"3-D Characterization of Urban Areas Using High-Resolution Polarimetric SAR Tomographic Techniques and a Minimal Number of Acquisitions","volume":"59","author":"Huang","year":"2021","journal-title":"IEEE Trans. Geosci. Remote Sens."}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/14\/17\/4173\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T00:15:14Z","timestamp":1760141714000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/14\/17\/4173"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,8,25]]},"references-count":91,"journal-issue":{"issue":"17","published-online":{"date-parts":[[2022,9]]}},"alternative-id":["rs14174173"],"URL":"https:\/\/doi.org\/10.3390\/rs14174173","relation":{},"ISSN":["2072-4292"],"issn-type":[{"type":"electronic","value":"2072-4292"}],"subject":[],"published":{"date-parts":[[2022,8,25]]}}}