Version History for U.S. Geological Survey Professional Paper 1877 Hydrogeology, Land-Surface Subsidence, and Documentation of the Gulf Coast Land Subsidence and Groundwater-Flow (GULF) Model, Southeast Texas, 1897–2018 By John H. Ellis, Jacob E. Knight, Jeremy T. White, Michelle Sneed, Joseph D. Hughes, Jason K. Ramage, Christopher L. Braun, Andrew Teeple, Linzy Foster, Samuel H. Rendon, and Justin Brandt ----------------------------------------------------- First posted online January 13, 2023 ----------------------------------------------------- Revised and reposted November 28, 2023, as version 1.1 On page 2 of the text, the number of groundwater conservation districts established between 2001 and 2014 was changed from 13 to 11. On page 205, a reference to appenidx 7 was added in the discussion about transient stress periods. Throughout the report, references to table 7.1 were changed to reference table 7.2 because table 7.1 has been renumbered as table 7.2. On page 232, a reference to table 7.3 was added to the first sentence of the Groundwater Levels section. On page 264, a footnote had been inadvertently left off of figure 145. That footnote has been added. On pages 268 and 271, the explanations for the estimated data values were inadvertently omitted from figures 149 and 152. The explanations and the associated footnotes have been added. On page 271, figure 152G, the graph was incorrectly labeled as "Benchmark V 305." The label for figure 152G has been re-labeled as "Benchmark L 639." On page 296, "time" was changed to "temporal" twice in a sentence about discretization. On page 313 of the text in the References Cited, in the "Rose, N.A., 1943" reference, the URL and an accessed date were added to the reference. On page 364, the title of appendix 7 has been changed to "Model Temporal Discretization, History Matching, and Uncertainty Analysis with PESTPP-IES." On page 378, the title of appendix 8 has been changed to "Groundwater Model Observations and Water Budgets." Additional text has been added to appendixes 7 and 8. Tables from the data release (Knight and others, 2023; https://doi.org/10.5066/P9XM8A1P) have been added to appendix 7 and appendix 8: tables 7.1, 7.3, 8.3, 8.4, 8.5, 8.6, 8.7, and 8.8.