Filters: System Type: Data Release (X) > Categories: NOT Data Release - In Progress (X) > Tags: {"type":"Subject","name":"loads"} (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types Map Service (3) OGC WFS Layer (3) OGC WMS Layer (3) OGC WMS Service (3) Citation (1) Contacts Wyatt S Tatge Water Resources Dakota Water Science Center U.S. Geological Survey - ScienceBase Karen R Ryberg More... Tags (with Type=Subject ) loads (3) water quality (3) trends (2) chesapeake bay watershed (1) river input monitoring stations (1) total phosphorus (1) yields (1) View Results as: JSON ATOM CSV

Nitrogen, Phosphorus, and Suspended-Sediment Loads and Trends measured in Nine Chesapeake Bay Tributaries: Water Years 1985-2015 Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the nine Chesapeake Bay River Input Monitoring (RIM) stations for the period 1985 through 2015. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted Regression on Time, Discharge, and Season). The load results represent the total mass of nitrogen, phosphorus, and suspended sediment that was exported from each of the nine RIM watersheds. When summed, the loads from the nine RIM stations represents the total load delivered from nearly eighty-percent of the bay watershed.... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chesapeake Bay Watershed, USGS Science Data Catalog (SDC), Water Quality, loads, river input monitoring stations, All tags... trends, water quality, yields, Fewer tags Total Phosphorus Load and Ancillary Data Related to Sources of Total Phosphorus in the Red River of the North Basin The Red River of the North (Red River) transports phosphorus from North Dakota, Minnesota, and South Dakota, to Manitoba, Canada, and eventually into Lake Winnipeg. Phosphorus load (or flux) is the amount of total phosphorus (TP) transported by the Red River. The effect of TP load on water quality is a concern, especially with respect to downstream eutrophication issues in Lake Winnipeg, Manitoba, Canada. There is interest at the State and International level to reduce TP flux – an expensive proposition, depending on the method (controlling sources, settling ponds, buffer strips, changes in land use) that is not always effective during spring runoff. The purpose of the study for which these data were developed... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Crookston, Crookston, Crookston, Emerson, Emerson, All tags... Emerson, Fargo, Fargo, Fargo, Halstad, Halstad, Halstad, Kindred, Kindred, Kindred, Manitoba, Manitoba, Minnesota, Minnesota, Moorhead, Moorhead, Moorhead, Neche, Neche, Neche, North Dakota, North Dakota, Pembina River, Pembina River, Pembina River, Red Lake River, Red Lake River, Red Lake River, Red River of the North, Red River of the North, Red River of the North, Sheyenne River, Sheyenne River, Sheyenne River, South Dakota, South Dakota, USGS Science Data Catalog (SDC), Water Quality, agriculture, loads, phosphorus, surface water quality, total phosphorus, water quality, Fewer tags Data and scripts used in water-quality trend and load analysis in the Heart River Basin, North Dakota, 1970-2020 A comprehensive study to evaluate salinity and nutrient conditions in the Heart River Basin, North Dakota was completed by the U.S. Geological Survey (USGS) in cooperation with the Natural Resources Conservation Service and the Grant County Soil Conservation District. In this dataset three zipped folders are provided which contain all files necessary to run trend, load, and geochemical models and produce results published in U.S. Geological Scientific Investigations Report 2022-5013 [Tatge, W.S., Nustad, R.A., and Galloway, J.M., 2022, Evaluation of Salinity and Nutrient Conditions in the Heart River Basin, North Dakota, 1970-2020: U.S. Geological Survey Scientific Investigations Report 2022-5013]. In addition,... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Geochemistry, Heart River, Loads, North Dakota, Trends, All tags... USGS Science Data Catalog (SDC), Water Quality, Water Quality, Fewer tags