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However, acquiring water depth data is often difficult due to inadequate monitoring or insufficient funds. Satellite-derived bathymetry (SBD) data provides cost-effective and rapid estimates of the water depth across large areas. However, the applicability and performance of these techniques for inland wetlands have not been thoroughly evaluated. Here, a time series of bathymetry data for inland wetlands in West Kentucky and Tennessee were derived from Landsat 8 images using two widely used empirical models, Stumpf and a modified Lyzenga model and three machine learning models, Random Forest, Support Vector regression, and k-Nearest Neighbor. We processed satellite images using Google Earth Engine and compared the performance of water depth estimation among the different models. The performance assessment at validation sites resulted in an RMSE in the range of 0.18\u20130.47 m and R2 in the range of 0.71\u20130.83 across all models for depths &lt;3.5 m, while in depths &gt;3.5 m, an RMSE = 1.43\u20131.78 m and R2 = 0.57\u20130.65 was obtained. Overall, the empirical models marginally outperformed the machine learning models, although statistical tests indicated the results from all the models were not significantly different. Testing of the models beyond the domain of the training and validation data suggested the potential for model transferability to other regions with similar hydrologic and environmental characteristics.<\/jats:p>","DOI":"10.3390\/rs16162986","type":"journal-article","created":{"date-parts":[[2024,8,14]],"date-time":"2024-08-14T10:28:41Z","timestamp":1723631321000},"page":"2986","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Shallow Water Depth Estimation of Inland Wetlands Using Landsat 8 Satellite Images"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6754-9311","authenticated-orcid":false,"given":"Collins","family":"Owusu","sequence":"first","affiliation":[{"name":"Department of Civil and Environmental Engineering, Tennessee Technological University, Cookeville, TN 38505, USA"},{"name":"AtkinsR\u00e9alis USA Inc., Raleigh, NC 27609, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0186-3057","authenticated-orcid":false,"given":"Nicholas M.","family":"Masto","sequence":"additional","affiliation":[{"name":"Department of Biology, Tennessee Technological University, Cookeville, TN 38505, USA"},{"name":"Cornell Lab of Ornithology, Cornell University, Ithaca, NY 14850, USA"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7746-3121","authenticated-orcid":false,"given":"Alfred J.","family":"Kalyanapu","sequence":"additional","affiliation":[{"name":"Department of Civil and Environmental Engineering, Tennessee Technological University, Cookeville, TN 38505, USA"},{"name":"Water Center, Tennessee Technological University, Cookeville, TN 38505, USA"}]},{"given":"Justin N.","family":"Murdock","sequence":"additional","affiliation":[{"name":"Department of Biology, Tennessee Technological University, Cookeville, TN 38505, USA"}]},{"given":"Bradley S.","family":"Cohen","sequence":"additional","affiliation":[{"name":"Department of Biology, Tennessee Technological University, Cookeville, TN 38505, USA"}]}],"member":"1968","published-online":{"date-parts":[[2024,8,14]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Cowardin, L.M., Carter, V., Golet, F.C., and LaRoe, E.T. 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