Larry Weber
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View article: Monitoring Phosphorus During High Flows: Critical for Implementing Surrogacy Models
Monitoring Phosphorus During High Flows: Critical for Implementing Surrogacy Models Open
Phosphorus (P) is a problematic waterborne pollutant, and considerable efforts have been taken to monitor its presence and transport in locales struggling with eutrophication. Most historical P datasets consist of intermittent grab samples…
View article: What are the effects of sea lice on wild and farmed Pacific and Atlantic salmon? A systematic map protocol
What are the effects of sea lice on wild and farmed Pacific and Atlantic salmon? A systematic map protocol Open
Wild Pacific salmon are a culturally, ecologically and economically important group of fishes. Unfortunately, several distinct lineages have already been lost. The abundance of these species varies over interdecadal and centennial time sca…
View article: Spatiotemporally dependent relationship between salmon lice from salmon farms and infestation on juvenile Pacific salmon in British Columbia, Canada
Spatiotemporally dependent relationship between salmon lice from salmon farms and infestation on juvenile Pacific salmon in British Columbia, Canada Open
This study examines the relationship between salmon lice Lepeophtheirus salmonis infestation pressure from Atlantic salmon farms and the prevalence of L. salmonis on wild juvenile Pacific salmon in British Columbia, Canada. We estimated we…
View article: Iowa’s Annual Phosphorus Budget: Quantifying the Inputs and Outputs of Phosphorus Transport Processes
Iowa’s Annual Phosphorus Budget: Quantifying the Inputs and Outputs of Phosphorus Transport Processes Open
Phosphorus (P) plays an integral part in Iowa’s economic and environmental activities through its role as an essential nutrient and waterborne pollutant. However, the amount of phosphorus transported through these activities has not been w…
View article: Estimating Iowa’s riverine phosphorus concentrations via water quality surrogacy
Estimating Iowa’s riverine phosphorus concentrations via water quality surrogacy Open
Phosphorus (P) is a widespread waterborne pollutant that impairs many waterbodies. However, it is challenging to measure directly, and much research has been dedicated to developing surrogacy models that can repeatedly predict its concentr…
View article: An integrated cyberinfrastructure system for water quality resources in the Upper Mississippi River Basin
An integrated cyberinfrastructure system for water quality resources in the Upper Mississippi River Basin Open
The Upper Mississippi Information System (UMIS) is a cyberinfrastructure framework designed to support large-scale real-time water-quality data integration, analysis, and visualization for the Upper Mississippi River Basin (UMRB). UMIS is …
View article: Soil texture and vegetation root density assessment on regulating erosion across river floodplains
Soil texture and vegetation root density assessment on regulating erosion across river floodplains Open
Over the last few decades, floodplain management with best management practices has been utilized to treat areas susceptible to soil erosion and degradation. A major emphasis has been placed on the role of the above-ground vegetation to re…
View article: River floodplains as source or sink for fine sediment and total phosphorus export in an agricultural watershed
River floodplains as source or sink for fine sediment and total phosphorus export in an agricultural watershed Open
Floodplains constitute a vital and integrated component of the riverine network ensuring the connectivity and continuity of the river with the upland watershed areas. However, the sediment trapping efficiency of floodplains has not been we…
View article: UMIS: An Integrated Cyberinfrastructure System for Water Quality Resources in the Upper Mississippi River Basin
UMIS: An Integrated Cyberinfrastructure System for Water Quality Resources in the Upper Mississippi River Basin Open
The Upper Mississippi Information System (UMIS) is a cyberinfrastructure framework designed to support large-scale real-time water quality data integration, analysis, and visualization for the Upper Mississippi River Basin (UMRB). UMIS is …
View article: Assessment of Spatial Nitrate Patterns in An Eastern Iowa Watershed Using Boat-Deployed Sensors
Assessment of Spatial Nitrate Patterns in An Eastern Iowa Watershed Using Boat-Deployed Sensors Open
Water quality sensors deployed on boats, buoys, and fixed monitoring stations along rivers allow high frequency monitoring at dense spatial and temporal resolutions. Research characterizing nitrate (NO3–N) delivery along extended reaches o…
View article: Iowa stream nitrate and the Gulf of Mexico
Iowa stream nitrate and the Gulf of Mexico Open
The main objective of this work was to quantify and update the U.S. Midwest agricultural state of Iowa's contribution of nitrate-nitrogen to the Mississippi River stream network against the backdrop of the ongoing problem of Gulf of Mexico…
View article: Evaluating the Timing and Interdependence of Hydrologic Processes at the Watershed Scale Based on Continuously Monitored Data
Evaluating the Timing and Interdependence of Hydrologic Processes at the Watershed Scale Based on Continuously Monitored Data Open
A quantitative understanding of the interplay between the different components of the hydrologic cycle at the watershed scale can be gained from analyzing high-frequency hydrologic time series. High-frequency measurements of precipitation,…