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2020 Systemic Imagery, Upper Mississippi River System (UMRS) 2020 Systemic Imagery, Upper Mississippi River System (UMRS)
The U.S. Army Corps of Engineers' Upper Mississippi River Restoration (UMRR) program, through its Long Term Resource Monitoring (LTRM) element, collected aerial imagery of the systemic Upper Mississippi River System (UMRS) during the summer of 2020. The main purpose of the aerial imagery was to develop Land Cover/Land Use (LCU) spatial datasets of navigable pools (the stretch of river...
A comparison of statistical modeling approaches for hierarchical data: A simulation study and application to ecology data A comparison of statistical modeling approaches for hierarchical data: A simulation study and application to ecology data
The repository contains code to analyze the differences in model results when nested design structures differ. The code for this project assumes the reader is familiar with R, nested designs, and mixed effects linear modeling.
Bottom dissolved oxygen measurements from Lake Erie's Central Basin, 2020 Bottom dissolved oxygen measurements from Lake Erie's Central Basin, 2020
This data set, compiled by USGS Lake Erie Biological Station, provides near-bottom measurements of temperature and dissolved oxygen for the Central Basin of Lake Erie. Data were recorded by self-contained environmental data loggers (PME, Inc., MiniDOT data loggers). The data loggers were deployed during the stratified period (i.e., beginning of June 2020 through late October 2020) to...
MODFLOW-2000 and MODPATH4 used to simulate groundwater flow and contaminant transport in the Pohatcong Valley, Warren County, New Jersey MODFLOW-2000 and MODPATH4 used to simulate groundwater flow and contaminant transport in the Pohatcong Valley, Warren County, New Jersey
The U. S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency, developed a numerical groundwater flow model, using MODFLOW2000, to simulate groundwater flow in the Pohatcong Valley including the area within the Pohatcong Valley Ground Water Contamination Site. In 1978, the chlorinated solvents trichloroethene (TCE) and tetrachloroethene (PCE) were detected in...
SEAWAT, MODFLOW-2000, and SHARP models used to simulate future water-supply scenarios, Cape May County, New Jersey SEAWAT, MODFLOW-2000, and SHARP models used to simulate future water-supply scenarios, Cape May County, New Jersey
Three groundwater flow models, using MODFLOW-2000, SEAWAT, and SHARP model codes, were used to evaluate plans to supply potable and non-potable water to residents and businesses of Cape May County, New Jersey until at least 2050. The ideal plan would meet projected demands and minimize adverse effects on currently used sources of potable, non-potable, and ecological water supplies. The U...
MODFLOW-2005 model used to simulate water-table response to climate-change-driven sea-level rise and changes in recharge, Gateway National Recreation Area, Sandy Hook Unit, New Jersey MODFLOW-2005 model used to simulate water-table response to climate-change-driven sea-level rise and changes in recharge, Gateway National Recreation Area, Sandy Hook Unit, New Jersey
A MODFLOW-2005 model, using the SWI2 package, was developed for the Sandy Hook Unit, Gateway National Recreation Area (hereafter Sandy Hook) in New Jersey to evaluate the response of groundwater resources to expected sea-level rise (SLR) and changes in groundwater recharge associated with global climate change. The National Park Service (NPS), among other agencies, is mandated to...