Data Releases
The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.
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Saipan, data collected from visual surveys during a mock rapid response exercise, October 2023 Saipan, data collected from visual surveys during a mock rapid response exercise, October 2023
These data were created in October 2023 while completing nocturnal visual surveys for brown treesnakes (Boiga irregularis) as part of an early detection and rapid response training exercise. They contain data on counts of lizards, small mammals, and birds documented while completing surveys. There are no brown treesnake counts because no snakes were detected during the exercise.
Island of Hawai‘i, assessment of standing and felled ‘ōhi‘a trees infected with Ceratocystis wilt of ‘ōhi‘a, 2014 - 2021 Island of Hawai‘i, assessment of standing and felled ‘ōhi‘a trees infected with Ceratocystis wilt of ‘ōhi‘a, 2014 - 2021
Ceratocystis lukuohia is one of two fungal pathogens that causes Rapid ‘Ōhi‘a Death (ROD) in Hawaii. This data release includes metadata and tabular data that documents the persistence of C. lukuohia in ‘ōhi‘a trees (Metrosideros polymorpha) that have died from the disease. Additionally, the data release documents the presence of active ambrosia beetle (Curculionidae, Xyleborini)...
Guam, USGS Closed Population data associated with lizard monitoring and reintroductions in and around USGS Closed Population, 2016 - 2022 Guam, USGS Closed Population data associated with lizard monitoring and reintroductions in and around USGS Closed Population, 2016 - 2022
We experimentally controlled brown treesnakes (Boiga irregularis) in a 5 ha study site on Guam and monitored extant lizards for a response to snake suppression. We then used functional response in extant lizards to snake suppression as a trigger to initiate reintroductions of three extirpated lizard species, with different activity patterns or microhabitat uses. These represent data from
Digital elevation model of the lava dome in the crater of Mount St. Helens, September 13, 1984 Digital elevation model of the lava dome in the crater of Mount St. Helens, September 13, 1984
The catastrophic, explosive eruption of Mount St. Helens, Washington, on May 18, 1980, is the most well-known eruption of the volcano. Less well known is that the May 18 eruption marked the beginning of a period of eruptive activity that lasted through 1986. Beginning in October 1980, a series of 17 dome-building episodes added millions of cubic meters of lava to the crater floor. Most...
Post-Wildfire Debris-Flow Hazard Assessment (PWFDF) Collection Post-Wildfire Debris-Flow Hazard Assessment (PWFDF) Collection
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 assessments for recent wildfires. This collection contains the results of those...
Monthly NDVI and Pixel Reliability Scores for MODIS Imagery of 12 Months Prior and 12 Months Post Wildland Fire Event for the Islands of Guam, Yap and Palau from 2016 to 2020 Monthly NDVI and Pixel Reliability Scores for MODIS Imagery of 12 Months Prior and 12 Months Post Wildland Fire Event for the Islands of Guam, Yap and Palau from 2016 to 2020
These data provide monthly NDVI and pixel reliability values from MODIS imagery for 12-months prior to and 12-months following wildland fire occurrences on each island. Burned areas were derived from higher resolution imagery (eg. MAXAR) and burned pixels (250m resolution) were defined as those for which burned areas intersected with 25% or more of each MODIS pixel (indicated by...
Drought Time Series Based on the Standardized Precipitation Index for Guam from 1954 to 2022 and Koror from 1952 to 2019 Drought Time Series Based on the Standardized Precipitation Index for Guam from 1954 to 2022 and Koror from 1952 to 2019
This dataset contains an input of calculated average monthly rainfall values for Guam and drought time series data that covers two islands. The Guam drought time series is based on the standardized precipitation index (SPI) three-month intervals (SPI-3) and twelve-month intervals (SPI-12). Calculated from monthly rainfall values from 1954 through 2020 were produced for the whole land...
Nest box colony field observations and avian egg tissue laboratory analyses from Lake Koocanusa and the Kootenai River Basin, Montana, 2022-2023 Nest box colony field observations and avian egg tissue laboratory analyses from Lake Koocanusa and the Kootenai River Basin, Montana, 2022-2023
This data release includes nest box field observations (N = 98 nest boxes) and avian egg tissue laboratory analyses (N = 60 eggs) collected from Lake Koocanusa (also known as Koocanusa Reservoir) and the Kootenai River Basin, Montana, 2022-2023. Nest box field observation data (occupancy rate, clutch size, and hatching success) and avian eggs were collected by the U.S. Fish and Wildlife...
Electron microprobe and 40Ar/39Ar isotopic data from muscovite in the Raft River detachment zone, Utah, USA Electron microprobe and 40Ar/39Ar isotopic data from muscovite in the Raft River detachment zone, Utah, USA
This data release includes electron microprobe and 40Ar/39Ar data collected at the U.S. Geological Survey for samples from the Raft River metamorphic core complex in Utah, USA. Rock samples were collected by Raphael Gottardi, currently at Auburn University. Muscovite in thin sections from quartzites, micaceous quartzites, and quartz-kyanite rocks were analyzed by electron probe...
Fourier Transform Infrared (FTIR) screening of extracted sediments for samples collected for the Sediment-Bound Contaminant Resiliency and Response Strategy pilot study, northeastern United States, 2015 Fourier Transform Infrared (FTIR) screening of extracted sediments for samples collected for the Sediment-Bound Contaminant Resiliency and Response Strategy pilot study, northeastern United States, 2015
Coastal communities are uniquely vulnerable to sea-level rise and severe storms such as hurricanes. These events enhance the dispersion and concentration of natural and anthropogenic chemicals and pathogenic microorganisms that could adversely affect the health and resilience of coastal communities and ecosystems in subsequent years. The U.S. Geological Survey has developed the Sediment...
Esterase enzyme activity from three waterborne bacterial species exposed to five contaminant compounds found in wastewaters Esterase enzyme activity from three waterborne bacterial species exposed to five contaminant compounds found in wastewaters
To explore the capacity of microbiota to reflect water quality, we advanced methods using flow cytometry for measuring bacterial metabolic activity. After exposure of three bacterial species to five compounds that can be found in watersheds (i.e., an herbicide, a preservative, an antibiotic, and two hormones), flow cytometry methodology was used to measure esterase activity.
Climate Vulnerability Estimates from Correlative Niche Models for Southeastern U.S. Species: A Tool to Support State Wildlife Action Plan Revisions (2025) Climate Vulnerability Estimates from Correlative Niche Models for Southeastern U.S. Species: A Tool to Support State Wildlife Action Plan Revisions (2025)
USGS’s Southeast Climate Adaptation Science Center and the University of Tennessee, Knoxville are undertaking research to support southeastern states and partners engaged in the process of preparing revisions of State Wildlife Action Plans (SWAPs). This effort focuses specifically on integration of climate change into SWAPs. This data product provides a collation of estimates of species