Resource Library

This review synthesizes insights from 142 studies showing how satellite remote sensing offers a cost-effective way to monitor key water-quality parameters globally, while highlighting major research gaps in non-optically active indicators and small inland water bodies that call for expanded methods and machine-learning integration.

This review analyzes two decades of water-quality research using multivariate statistical analysis, showing rapid growth—especially in developing countries—and identifying PCA, HCA, FA, and DA as the most widely applied techniques across studies of rivers, groundwater, and lakes.

A practical handbook providing standardized protocols for monitoring marine water quality across the Mesoamerican Reef to support effective conservation and management.

This study shows that river water quality feeding a seasonally hypoxic tropical bay in Panama varies sharply with catchment land use and land cover, with pristine peat swamps producing naturally low-oxygen blackwater and more urbanized or deforested catchments showing elevated nutrients, highlighting how even moderate land-use changes can alter coastal ecosystem inputs.

This review highlights the limitations of widely used OLS methods in water-quality research and provides practical guidance on modern statistical approaches, such as GLS, mixed-effects models, and Bayesian analyses, that better handle the temporal, spatial, and unbalanced nature of environmental datasets.

This study portrayed how riverine sediment and nutrient inputs shape water quality and benthic communities on two little-known coral reefs in north-central Puerto Rico, identifying Tómbolo Reef as a potential refuge for threatened reef-building corals while nearby Machuca Reef shows degraded, macroalgae-dominated conditions.

This study uses satellite data and in situ measurements to show how seasonal Sargassum influx in the southern Mexican Caribbean increases coastal turbidity and degrades water quality to inform strategies to better manage and mitigate these recurring events.

The Coastal Resources Division administers beach water quality monitoring, public notification and data reporting to the Environmental Protection Agency and other water quality agencies.

This text began as a collection of class notes for a course on applied statistical methods for hydrologists taught at the U.S. Geological Survey (USGS) National Training Center. Course material was formalized and organized into a textbook, first published in 1992 by Elsevier as part of their Studies in Environmental Science series. In 2002, the work was made available online as a USGS report.

Across the state, Environment Protection Authority Victoria’s (EPA) authorised officers and environmental scientists collect water samples to detect pollution and monitor the health of Victoria’s waterways.