a USGS Alaska Geographic Science Office, 4230 University Drive, Anchorage, AK, United States b Department of Geography, University of Maryland, College Park, MD, United States c USGS, Alaska Cooperative Fish and Wildlife Research Unit, 214 Irving I Building, University of Alaska, Fairbanks, AK, United States d Department of Integrative Biology, University of Guelph, Guelph, ON, Canada e Michiga...

First posted September 9, 2022 For additional information, contact: Director, New Mexico Water Science CenterU.S. Geological Survey 6700 Edith Blvd. NE Albuquerque, NM 87113Contact Pubs Warehouse The U.S. (USGS) operates an extensive nationwide network of stream, rain, and groundwater gages. These instruments are used to monitor how much water there is across the Nation at any given moment. Str...

MOC3D is a general-purpose computer model developed by the U.S. Geological Survey (USGS) for simulation of three-dimensional solute transport in ground water (Konikow and others, 1996). The model is an update to the widely used USGS two-dimensional solutetransport model (MOC) and is implemented as an optional “package” for the ground-water flow model MODFLOW (Harbaugh and McDonald, 1996). Direc...

For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment, visit http://www.usgs.gov or call 1–888–ASK–USGS. For an overview of USGS information products, including maps, imagery, and publications, To order this and other USGS information products, visit http://store.usgs.gov Any use of trade, product,...

First posted June 6, 2023 For additional information, contact: Associate Director, Natural Hazards Mission AreaU.S. Geological Survey12201 Sunrise Valley DriveReston, VA 20192Contact Pubs Warehouse Title VII of Division N in the Consolidated Appropriations Act, (Public Law 117–328), was enacted on December 29, 2022. The U.S. Survey received $41.04 million disaster emergency supplemental funding...