Data

This data release includes rasters of riverbed grain size in select Oregon rivers where substrate size has been modeled following the approach of White and others (2025a) in which bathymetric lidar point-clouds were paired with georeferenced pebble counts to produce grain-size rasters for the Santiam River Basin (White and others, 2025b). Similar to White and others (2025b), this data...

This data release contains rasters of modeled spawning habitat for spring Chinook salmon in the Willamette River Basin, Oregon for a range of streamflows and for various river corridors. Usable habitat area for spawning spring Chinook salmon was evaluated by integrating depth and velocity outputs from two-dimensional hydraulic models and estimates of riverbed grainsize with observed and...

This data release contains rasters of modeled juvenile rearing habitat for spring Chinook salmon in the Willamette River Basin, Oregon for a range of streamflows and for various river corridors. Usable habitat area for juvenile rearing spring Chinook salmon was modeled for two size classes (fry and parr) by pairing outputs from two-dimensional hydraulic models with in-basin observations...

This data release contains two-dimensional hydraulic models and model results for tributaries to the Willamette River of northwestern Oregon. Model files and results are organized by river name, wherein each river with two-dimensional models is included as a child item within this data release. The model extent for each river corridor is separated into individual reaches that each extend

Dataset includes qualitative benthic algae and plankton occurrence data from 148 discrete samples of plankton (n=58) collected with an 80-micron mesh plankton net and streambed sediment (n=90) collected using a pipettor and(or) petri dish and spatula. Samples were collected, placed on ice, and analyzed within 1-3 days. Multiple wet mount slides were prepared and examined with a Leica...

The Donner und Blitzen River is a snowmelt and spring-fed system that is the primary drainage for Steens Mountain in southeastern Oregon. The river flows northward through the Donner und Blitzen Valley within Malheur National Wildlife Refuge before terminating in endorheic Malheur Lake. Within the refuge, water management infrastructure diverts river flow through a network of dams and...

In cooperation with the U.S. Army Corps of Engineers (USACE), the U.S. Geological Survey (USGS) surveyed ground control points and coordinated aerial photograph acquisition of Green Peter Lake, located on the Middle Santiam River about 8 kilometers upstream of the confluence of the Middle Santiam and South Santiam Rivers in western Oregon. Green Peter Lake is a multi-purpose reservoir...

In cooperation with the U.S. Army Corps of Engineers (USACE), the U.S. Geological Survey (USGS) surveyed ground control points and coordinated aerial photograph acquisition of Lookout Point Lake, located on the Middle Fork Willamette River about 30 kilometers upstream of the confluence of the Middle Fork and mainstem Willamette River in western Oregon. Lookout Point Lake is a multi...

In cooperation with the U.S. Army Corps of Engineers (USACE), the U.S. Geological Survey (USGS) surveyed ground control points and coordinated aerial photograph acquisition of Foster Lake, located near Sweet Home and Foster, Oregon. Foster Lake is a multi-purpose reservoir impounded by the 38.4-meter ([m]; 126-foot [ft]) tall Foster Dam along the South Santiam River. Aerial photographs...

In cooperation with the U.S. Army Corps of Engineers (USACE), the U.S. Geological Survey (USGS) surveyed ground control points and coordinated aerial photograph acquisition of Detroit Lake, located on the North Santiam River about 85 kilometers upstream its confluence with the Willamette River in western Oregon. Detroit Lake is a multi-purpose reservoir impounded by the 141-meter ([m]...

In cooperation with the U.S. Army Corps of Engineers (USACE), the U.S. Geological Survey (USGS) surveyed ground control points and coordinated aerial photograph acquisition of Blue River Lake, located on Blue River about 2.5 kilometers upstream of the confluence of the Blue River and the McKenzie River in western Oregon. Blue River Lake is a multi-purpose reservoir impounded by both the...

This data release provides datasets for the conterminous United States (CONUS), characterizing rapid transitions between hydrological extremes, drought-to-flood (DtF) and flood-to-drought (FtD), over 1981–2024. The datasets include event catalogs, transition catalogs, and comparison tables used to assess prevalence, timing, rapidity, and impactfulness of hydrologic transitions and their...