The Glen Canyon Dam Adaptive Management Program (GCDAMP) currently focuses primarily on downstream resources, particularly in the Grand Canyon, without fully accounting for the diverse environmental and societal values across the entire Colorado River sys...

Suggesting an alternative approach to achieve needed flexibility through adaptive management. The rules of reservoir release be reconsidered every few years. The reconsideration would be based on the status of reservoir storage, ecosystem, river resource,...

A full accounting of where the Colorado River water goes en route to its delta can aid design of strategies and plans for bringing water use into balance with available supplies, according to new research.

This paper provides an analysis of the accuracy and bias of the 24-Month Study projections for future Lake Powell inflows and elevations and finds that in some years, the most probable projected inflows were higher than what actually occurred by as much a...

This White Paper is designed to encourage wide-ranging and innovative thinking about how to sustainably manage the water supply, while simultaneously encouraging the negotiators of new agreements to consider their effects on ecosystems.

Predictions of river channel adjustment to changes in streamflow regime based on relations between mean channel characteristics and mean flood magnitude can be useful to evaluate average channel response.

Many canyon‐bound rivers have downstream flow and water temperatures modified. In some regions, climate change is expected to cause lower storage in reservoirs and warmer release temperatures, which may further alter downstream flow and thermal regimes.

The sediment supply within a river system evolves depending on the discharge, flood frequency and duration, changes in sediment input, and ecohydraulic conditions that modify sediment transport processes.

Effective water-supply negotiation and river management are best served if Colorado River stakeholders are mindful of the precision and accuracy of the many components of the hydrologic cycle that affect the water supply.

Long-range planning of the water supply provided by the Colorado River requires realistic assessments of the impact of a continuation of the current drought that began in 2000, of extreme future droughts, and the long-term and decline in watershed runoff....

Channels change in response to natural and human-caused fluctuations in streamflow and sediment. Predicting how the channel might change from alterations in streamflow and sediment supply is an important and challenging part of managing a river system.

The lower Green River episodically narrowed between the mid-1930s and present day through deposition of new floodplains within a wider channel that had been established and/or maintained during the early twentieth century pluvial period.

A white paper where describing how Colorado River stakeholders face many uncertainties—issues like climate change, future water demand, and evolving ecological priorities—and are looking for new tools to help cope.

A new white paper is the first of a series of papers to be produced by the Future of the Colorado River Project that explore alternative management strategies for the Colorado River that might provide benefit to water-supply users and to river ecosystems....

The American West, while steeped in mythology, is also a region that depends heavily on science for its long-term livability—and perhaps no one was quicker to realize that than John Wesley Powell.

An estimate of a river’s natural flow regime is useful for water resource planning and ecosystem rehabilitation by providing insight into the predisturbance form and function of a river.

The Fill Mead First (FMF) plan would establish Lake Mead reservoir as the primary water storage facility of the main-stem Colorado River and would relegate Lake Powell reservoir to a secondary water storage facility to be used only when Lake Mead is full....

Abstract Since the 1940s, the Rio Grande in the Big Bend region has undergone long periods of channel narrowing, which have been occasionally interrupted by rare, large floods that widen the channel (termed a channel reset).

We conducted stratigraphic, sedimentologic, and dendrogeomorphic analyses within two long floodplain trenches to precisely reconstruct the timing and processes of recent floodplain formation.

Over the last century, large-scale water development of the upper Rio Grande in the US and Mexico, and of the Rio Conchos in Mexico, has resulted in progressive channel narrowing of the lower Rio Grande in the Big Bend region.