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Sea-level rise and storms cause major changes on coastal landscapes, including shifts in elevation, ecosystem type (for example, dunes and tidal wetlands), soils, and plant communities. Because these changes can have impacts on human communities, the local economy, and ecosystems, understanding how, when, and why these changes occur can be important for informing policy and natural resource management decisions. However, much is still unknown in our understanding of and ability to forecast coastal landscape change, and many current modeling approaches do not include important feedbacks between the physical landscape and the species inhabiting it. Examples of these types of feedbacks include the rapid development...
Despite the proven efficacy of geothermal energy as a city-scale heating and cooling resource, the relative newness of most city-scale applications using diverse technologies has resulted in limited widespread adoption. We aim to develop authoritative information suitable for city-managers and other decision-makers. Geothermal resources are ubiquitous and diverse, with technologies available both for harvesting ambient heat or for storing thermal energy. These local low-carbon, baseload energy sources provide resilience, security, and jobs. The project team proposes to accelerate understanding and possibly energy-solution adoption by developing an international systematic nomenclature to describe the range of...
A revolution is underway in seismology that transforms fiber-optic cables into arrays of thousands of seismic sensors. Compared to the traditional monitoring networks using inertial seismometers, the fiber-optic approach can increase the spatial data density by orders of magnitude and enable data processing methodologies that require a high-fidelity wavefield. The Working Group aims to advance the USGS, along with several academic and industry partners, towards effective utilization of fiber-optic sensing techniques to understand earthquake hazards and improve monitoring and real-time warning systems. We will conduct synthesis studies that demonstrate the potential gains for various applications, including earthquake...
On May 25th, 2014, a 54.5 Mm3 rock avalanche occurred in the West Salt Creek valley in western Colorado following heavy rainfall on top of snow (Coe and others, 2016a). The data in this project includes boulder density in 20-m x 20-m grid cells for the entire West Salt Creek rock avalanche deposit. The grid cells cover 2,154,800 m2, which accounts for nearly the entire surface of the deposit. We estimated boulder density by counting 1-m or larger diameter boulders of sedimentary rock that are visible in high-resolution Unmanned Aircraft System (UAS) imagery collected for the area in July of 2014 (Coe and others, 2016b). Basalt boulders were excluded from the count because field observations indicated that they generally...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Geomorphology,
Geomorphology,
Landslide Hazards,
Landslides,
Mesa County, Colorado,
The USGS “Did You Feel It” (DYFI) is an extremely popular way for members of the public to contribute to earthquake science and earthquake response. DYFI has been in operation for nearly two decades (1999-2019) in the U.S., and for nearly 15 years globally. During that period the amount of data collected is astounding: Over 5 million individual DYFI intensity reports—spanning all magnitude and distance ranges—have been amassed and archived. Several of these types of surveys have been developed by international seismological institutions as well and many of these institutions have implemented algorithms to interpret intensity evaluations automatically, as a rapid and easy way to obtain a geographical distribution...
Presented is a list of voltages (electric potential differences) measured during magnetic storms on grounded long lines in the United States and Canada between 1891 and 1940. The sources for the list are published papers, technical documents, and newspapers. Each entry consists of the maximum voltage measured for each storm on a specified line connecting two ground points, nominally, between A "and" B. However, if a specific polarity is available, for example, the positive voltage from point A to point B, then the maximum voltage for the indicated polarity is listed, that is, positive A "to" B; conversely, for the opposite polarity, that is, from point B to point A, then the maximum voltage for the indicated polarity...
Categories: Data;
Tags: Canada,
Earth surface,
Electromagnetic induction,
Geoelectric field,
Geomagnetic field,
Household survey data about participation in wildfire risk mitigation cost-share programs and related questions, including stated barriers to conducting wildfire risk mitigation, basic demographics, and willingness to pay toward that cost-share program. Data (n=1,689) were collected in 95 communities exposed to wildfire risk in six counties in western Colorado, 2013-2017, with an overall survey response rate of 41.9%. The household surveys providing data were organized and implemented by two regional wildfire risk mitigation organizations, West Region Wildfire Council and Wildfire Adapted Partnership (formerly Firewise of Southwest Colorado).
This data release presents structure-from-motion (SfM) products derived from aerial imagery collected along the North Carolina coast in response to storm events and the recovery process. U.S. Geological Survey (USGS) researchers use the aerial imagery and products to assess future coastal vulnerability, nesting habitats for wildlife, and provide data for hurricane impact models. This research is part of the Remote Sensing Coastal Change Project. Products include digital elevation models and orthorectified imagery (RGB-averaged products) created from aerial imagery surveys with precise Global Navigation Satellite System (GNSS) navigation data flown in a piloted fixed-wing aircraft. The products span the coast over...
As a result of climate change, a warmer and drier climate has led to an increase in wildfire. Severe wildfires can cause whitebark pine mortality during all life stages, thus we used data on wildfire severity throughout the Crown landscape to predict where future severe fires will occur. Spatial data on wildfire severity was compiled by the CMP Hi5 Working Group technical team and ranked using a consistent categorical system based on each state/province’s assigned severity. Areas that had moderate-to-severe wildfires in the past 30 years were considered low risk.
Categories: Data;
Tags: Data,
EARTH SCIENCE,
EARTH SCIENCE,
ENVIRONMENTAL GOVERNANCE/MANAGEMENT,
FIRE MANAGEMENT,
The Cascadia Subduction Zone, located in the U.S. Pacific Northwest and southwestern British Columbia, has hosted magnitude ≥8.0 megathrust earthquakes in the geologic past, a future earthquake is imminent, and the potential impacts could cripple the region. Subduction zone earthquakes represent some of the most devastating natural hazards on Earth. Despite substantial knowledge gained from decades of geoscience research, the size and frequency of Cascadian earthquakes remain controversial, as do the physics of earthquake rupture, the effects of earthquake shaking, and the effect of resultant tsunamis. This translates into major uncertainties in earthquake hazard assessments that can lead to ineffective preparedness...
Categories: Project;
Tags: Active,
All Working Groups,
Cascadia Subduction Zone,
Earthquakes,
Natural Hazards,
Terrestrial evapotranspiration (ET), the second-largest component of the terrestrial water cycle, links water, energy, and carbon cycles and influences the productivity and health of our ecosystems. Despite the importance of ET, the dynamics of ET across a spectrum of spatiotemporal scale and their controls are uncertain. During an international ET workshop held in November 2021 by AmeriFlux, the scientific community identified key challenges to improve our understanding of ET dynamics. Participants underscored the need for an integrated understanding of ET across the different research disciplines: in-situ measurements, remote sensing, and modeling. Here, we propose the synthesis of the three research areas to...
Despite the critical services freshwater systems provide, freshwater biodiversity has been vastly under-studied compared to terrestrial and marine biomes. In fact, systematic compilations of freshwater zooplankton are surprisingly rare despite the critical roles zooplankton play in regulating and supporting ecosystem services, serving as key indicator species, and consequently, influencing emergent system properties such as water quality and food web structure. We have compiled and harmonized the most temporally and spatially extensive freshwater zooplankton dataset available to date, designed to seamlessly integrate with a suite of in-lake and remote sensing data and modeling products. Our international team will...
The U.S. Geological Survey Denver Library maintains a collection of more than 400,000 photographs taken during geologic studies of the United States and its territories from 1868 to the present. These images provide a visual history of the discovery, development, and sciences of the United States and its Geological Survey. Some photographs have been used in USGS publications, but most have never been published. Currently, this website represents less than 10 percent of the Library's images with approximately 38,000 photographs on-line. Visit http://library.usgs.gov/photo/#/.
Categories: Collection,
Data;
Tags: Broken Link,
Earthquakes,
Expeditions,
Landforms,
Mineral Specimens,
Subsurface preferential flow (PF = water bypassing the soil matrix) provides rapid flowpaths for water and any substances transported with it, thereby profoundly impacting the recharge of aquifers, the spreading of contaminants, the health of the soil, and the functioning of ecosystems. It involves a complexity of processes that are poorly understood to the degree that current science provides no reliable way to predict its occurrence and magnitude. This effort will address the fundamental question of where and when PF occurs, taking advantage of two recent scientific developments: availability of high frequency (at least every 30 minutes), multi-depth soil moisture data suitable to detect preferential flow events...
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