Data

Saturn’s moon Titan is a focus of scientific investigation and future exploration by NASA’s Dragonfly mission. Its surface is covered by lakes of liquid ethane and methane, vast dune seas, and abundant organics sourced from photochemical reactions in its dense atmosphere. Over the course of its 13-year mission, NASA’s Cassini spacecraft’s Imaging Science Subsystem (ISS) acquired near...

A campaign microgravity network was established at Lassen Volcanic Center, California, in 2018, and a subset of that network has been measured subsequently on a quasi-annual basis to assess changes in gravity over time that may be related to subsurface magmatic or hydrothermal processes. This data release includes microgravity data collected by the U.S. Geological Survey Volcano Science...

This multi-part, muti-scaled dataset summaries information from field sampling of vegetation plots on the structure and composition of vegetation and habitats that were also sampled for bird communities. Estimates are based on standardized assessments methods such as distance sampling, point-intercept methods, and censuses or stem counts that measure basal area, vegetation cover and...

This dataset contains the Mann-Kendall p value, Theil - Sen slope estimate, summary statistics for eleven modelled water budget components simulated by the National Hydrologic Model Precipitation-Runoff Modeling System (NHM-PRMS) (Markstrom and others, 2024). The trend analyses are created from aggregated outputs from three separate models, each of which was forced with Daymet Version 4...

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...

These data were collected as part of the USGS Sierra Nevada Forest Dynamics Study. They include tree diameter and mortality data as well as tree species identification and plot measurements from 8 plots located in Sequoia National Park from 1984 to 2023.

This data release describes critical and functional habitat for seabirds and shorebirds along Cat Island and Ship Island, Mississippi for the Mississippi Coastal Improvements Program (MsCIP). These maps were developed from existing habitat maps developed by the U.S. Fish and Wildlife Service’s National Wetland Inventory Program and maps developed specifically for the MsCIP Monitoring and...

The Barrier Island Comprehensive Monitoring (BICM) program was developed by Louisiana’s Coastal Protection and Restoration Authority (CPRA) and is implemented as a component of the System Wide Assessment and Monitoring Program (SWAMP). The program uses both historical data and contemporary data collections to assess and monitor changes in the aerial and subaqueous extent of islands...

Wildfire can substantially alter the hydrologic response of watersheds to rainfall, and debris-flow activity is among the most destructive consequences of these events. To assist federal, state, and local agencies in planning for postfire hazards, the U.S. Geological Survey conducts debris-flow hazard runout assessments. This collection contains the results of those assessments conducted...

These data were collected to estimate occupancy of Bombus affinis at two spatial scales: 10x10km grid cells and 3.14 hectare sampling units with unknown occupancy in Wisconsin, Minnesota, and Illinois 2022-2024. Data were also used to determine relationships between the area of developed land and Bombus affinis occupancy at both spatial scales and to determine factors affecting Bombus...

Bloater (Coregonus hoyi) are an extirpated deepwater fish species in Lake Ontario. Bloater were reintroduced to Lake Ontario starting in 2012 from a donor population in Lake Michigan. Despite annual stocking, Bloater have yet to establish a self-sustaining population and success of stocking has been limited. Acoustic telemetry studies have identified that post-release survival of stocked...

These datasets are part of an effort associated with the Mississippi Coastal Improvements Program to assess Mississippi Barrier Islands. The U.S. Army Corps of Engineers (USACE) restored sections of Cat and Ship Island. Over 142 hectares (350 acres) of sediment were placed on Cat Island during 2017 with the goal of restoring and fortifying the beaches and dunes from westward wave energy...