All Data

This legacy dataset includes digitized ground temperatures from four borehole sites in Utqiagvik, Alaska. The data were measured by scientists from the Naval Arctic Research Laboratory (NARL) on a weekly to biweekly frequency spanning 1950 to 1961. The datasets include ground temperatures at approximately 15-24 depth increments down to 60-110 ft (28-33 m) (with higher measurement...

This data release consists of flood hazard maps from compound coastal hazards--specifically sea-level rise (SLR), projected coastal storms, and streamflow. Products include projected flood depths, flood extents including uncertainties, water elevations, velocity hazards, and flood duration. These are generated using a suite of numerical models driven by outputs from Global Climate Models...

Monthly surface water samples were collected at sites in the Lake Pontchartrain estuary to assess the phytoplankton biomass and composition using algal pigment analysis. A total of 27 algal pigments including chlorophyll a and accessory pigments were evaluated from each of the water samples.

Infinity water level recorders were installed in 2004 to monitor hydrologic conditions in five freshwater forested wetlands in Louisiana: Bayou Chevreuil, Bayou Teche National Wildlife Refuge, Mandalay National Wildlife Refuge, Jean Lafitte National and Historical Park, and Treasure Island. Hourly measurements were collected continuously on a 24- hour basis through April 2022, producing...

This software release contains the R code to jointly run an integrated population model (IPM) and Bayesian population viability analysis (BPVA) for the Cape Sable Seaside Sparrow (CSSS; Ammospiza maritima mirabilis). The CSSS is a federally endangered bird endemic to a small part of the Everglades in southern Florida, USA. The IPM-BPVA synthesizes thirty years (1992-2021) of range-wide...

We monitored breeding birds at Whiskey Island, Louisiana between March through July from 2015 to 2020. We surveyed all available habitat by foot, using high-powered spotting scopes and binoculars to search for and identify nesting birds. We documented species, abundance, habitat, location, and breeding behavior for each bird that we observed to be breeding. We modeled the counts of...

This data release contains the boundaries of assessment units and input data for the assessment of undiscovered oil and gas resources in the Santa Maria Basin Province, California. The assessment unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The assessment unit is defined within the context of the higher...

This data release includes time-series data from 18 monitoring stations installed in Puerto Rico following Hurricane María in 2017, which led to over 70,000 landslides across the island (Hughes and others, 2017). The first two stations were installed in July of 2018 (Smith and others, 2020) to investigate subsurface hydrologic response to rainfall and develop a quantitative link between...

We present new electron microprobe analyses of olivine and oxide grains hosted in three young basaltic lava flows located in northern Harrat Rahat, a distributed volcanic field in central-western Saudi Arabia.These lavas, collectively referred to as the Five Fingers, erupted at ca. 24 ka from three elongate vent complexes that fall along a common lineament. Integrated with existing...

The Alaska Volcano Observatory conducted overflights of the active north crater of Mount Young on Semisopochonoi Island, Alaska, during its eruption in 2021 to capture the volcanic and hydrothermal activity within the vent during (May 30) and between (June 8) ash emissions. Thermal videos were acquired to see through the ash and steam and observe the features within the active crater...

This data release contains (1) principal facts of gravity measurements collected by the U.S. Geological Survey in 2000-2004 (usgs_iso.csv) and (2) inputs to a gravity inversion of Cenozoic basin thickness based on those gravity and previous measurements. Gridded data (geotiffs.zip) consist of the input isostatic gravity grid as well as grids of Cenozoic basin thickness and basement...

This data release contains postprocessed model output from a set of numerical simulations of hypothetical outburst floods of Spirit Lake, downstream sediment entrainment, and emergent debris flows, in the Toutle and Cowlitz River valleys in Washington State. The data release provides debris-flow inundation extent, travel times, maximum depths, and model input data (including hypothetical...