Unified Interior Regions

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Regions L2 Landing Page Tabs

Filter Total Items: 2,602
grassy slope with landslide monitoring instrument
Date Published: October 23, 2019
Status: Active

San Francisco Bay Area – SF Peninsula (BALT4) Site near Pacifica, CA

Recent Conditions

The instruments for this site were installed in the winter of 2012 and are used to monitor and detect changes in local conditions.  Soil water content and ground water pressure are monitored at two nests on the same hillslope.  Data for the site include:

  • ...
Contacts: Brian Collins
dry grassy slope with landslide monitoring instrument
Date Published: October 23, 2019
Status: Active

San Francisco Bay Area – SF Peninsula (BALT3) Site near Brisbane, CA

Recent Conditions

The instruments for this site were installed in the summer of 2011 and are used to monitor and detect changes in local conditions.  Soil water content and ground water pressure are monitored at two nests on the same hillslope.  Data for the site include:

  • ...
Contacts: Brian Collins
USGS
Date Published: October 23, 2019
Status: Active

Alaska

Probabilistic seismic hazard maps have been prepared for Alaska portraying ground motion values (peak ground acceleration and spectral amplitude at periods of 0.2, 0.3 and 1.0 seconds) at probabilities of exceedance of 2% and 10% in 50 years. Preparation of these maps followed the same general strategy as that followed for the U.S.G.S. seismic hazard maps of the contiguous United States,...

steep dry grassy slopes in foreground with populated valley in background
Date Published: October 23, 2019
Status: Active

San Francisco Bay Area – Marin County (BALT2) Site near San Rafael, CA

Recent Conditions

The instruments for this site were installed in the winter of 2010 and are used to monitor and detect changes in local conditions.  Soil water content and ground water pressure are monitored at two nests on the same hillslope.  Data for the site include:

  • ...
Contacts: Brian Collins
Sediment cores collected in Guatemala
Date Published: October 23, 2019
Status: Active

Drivers and Impacts of North Pacific Climate Variability

Climate model forecasts indicate an increase in extreme hydrologic events, including floods and droughts, for California and the western U.S. in the future. To better understand what the consequences of this future change in climate may be, USGS scientists are studying the frequency, magnitude, and impacts of past hydroclimate variability and extremes in the region. This project produces well-...

Measuring paleoflow directions in the overturned beds of the Pennsylvanian Atoka Formation at the Paris Spillway, Paris, AR
Date Published: October 21, 2019
Status: Active

Ozark Dome-Arkoma Basin-Ouachita Transect

The Ozark Dome-Arkoma Basin-Ouachita Transect (ODABOuT) project examines the three-dimensional geology of a transect of the southern orogenic margin of North America in its best surface exposure in western Arkansas. The Ozark Dome and Arkoma Basin represent a foreland uplift and foreland basin that formed as a result of the impinging Ouachita orogenic belt. Understanding the geometry and...

vertical timeline with text bullets
Date Published: October 17, 2019
Status: Completed

What if the ShakeAlert Earthquake Early Warning System Had Been Operating During the M6.9 1989 Loma Prieta Earthquake?

How will ShakeAlert® likely perform now on a large earthquake impacting a major urban area? How much warning will you get? To answer this, let’s do a thought experiment...

A bottomfish with small, bright spots lazily swims over a rocky seafloor among a few small pieces of kelp.
Date Published: October 17, 2019
Status: Active

Ecosystems: EXPRESS

The continental shelf and slope offshore California, Oregon, and Washington are home to deep-sea corals, chemosynthetic communities, and other sensitive habitats that could be impacted by the development of energy and mineral resources. The EXPRESS campaign will map and...

Block Island Wind Farm
Date Published: October 17, 2019
Status: Active

Resources: EXPRESS

Along the U.S. west coast, the Pacific Ocean, ocean floor, and winds above contain potentially vast energy and mineral resources. Developing these resources safely and wisely requires detailed information for each area of interest. One goal of EXPRESS is to inform ocean...

Map of offshore southern California showing the contours of the seafloor, with labels pointing to circles showing landslides.
Date Published: October 17, 2019
Status: Active

Hazards: EXPRESS

Marine geohazards including earthquakes, landslides, and tsunamis lie offshore of densely populated areas of California, Oregon, and Washington. One goal of EXPRESS is to improve assessments of these hazards.

Map of a western coastline with stretches of the coast labeled to identify data set regions.
Date Published: October 17, 2019
Status: Active

CoSMoS 3.1: Central California

CoSMoS v3.1 for central California shows projections for future climate scenarios (sea-level rise and storms)

Filter Total Items: 621
USGS
September 12, 2019

This Laser ablation ICPMS U-Pb detrital zircon data set supports mapping and stratigraphic interpretations of the Upper Devonian Ignacio Formation in southwestern Colorado (Silverton area). All samples were collected from a measured stratigraphic section called "Sultan Creek South" located at 37.710010 and -107.67530 (Evans and others, 2019). The Ignacio Formation was previously int

USGS
September 10, 2019

This data release contains the boundaries of assessment units and input data for the assessment of undiscovered gas hydrate resources on the north slope of Alaska. 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-level Total Petroleum Syste

USGS
September 6, 2019

This data release contains the boundaries of assessment units and input data for the assessment of undiscovered gas hydrate resources on the north slope of Alaska. 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-level Total Petroleum Syste

USGS
September 6, 2019

Streamflow and basin-characteristic data are needed for a variety of scientific applications including estimation of flow in ungaged basins and hydro-ecological classification of rivers. The U.S. Geological Survey (USGS), in cooperation with the Bureau of Reclamation and the Southern Rockies Landscape Conservation Cooperative (SRLCC), selected a subset of streamgages across the SRLC

A shorebird on a post in Hawaii
September 5, 2019

This data set contains bill and tarsal measurements from 114 Bristle-thighed Curlews, captured on breeding grounds in Alaska, and non-breeding areas in Hawaii and Reitoru atoll, French Polynesia.

Arctic glacier
September 5, 2019

Since the late 1950s, the USGS has maintained a long-term glacier mass-balance program at three North American glaciers. Measurements began on South Cascade Glacier, WA in 1958, expanding to Gulkana and Wolverine glaciers, AK in 1966, and later Sperry Glacier, MT in 2005. Additional measurements have been made on Lemon Creek Glacier, AK to compliment data collected by the Juneau Ice

USGS
September 5, 2019

Select samples were collected from boreholes in Arctic Alaska to determine the U-Pb ages of zircon to determine a maximum depositional age of the geologic units and/or provenance of the zircon in the samples. Samples were collected from the Department of Natural Resources-Alaska Geologic Materials Center in Anchorage Alaska and sent to U.S. Geological Survey-Geology, Geophysics and Geochemist

USGS
September 5, 2019

This dataset contains a summary of the characteristics of near-surface flow reversals at the Electric Dispersal Barrier System (EDBS) on the Chicago Sanitary and Ship Canal at Romeoville, Illinois, during Water Year 2018 (October 1, 2017, to September 30, 2018). Water velocity near the water surface is measured on a five-minute sampling interval in the EDBS using using a CODAR R

Flying Black Brant
September 4, 2019

This data set contains one table of the habitat classifications from imagery captured during aerial photographic surveys at the five primary Pacific black brant colonies on the Yukon-Kuskokwim Delta in western Alaska from 1993-2016.

USGS
September 2, 2019

This data release includes measurements of circulation and waves, profiles of seawater properties, and profiles of resistivity on the shoreline, which can be used to assess the potential for terrestrial groundwater intrusion on the reef and the sources and fate of these water masses. The recent discovery of coral Black Band Disease at Mākua Reef on Kauaʻi, Hawaiʻi prompted an investigation...

Watercolor of boat on water, houses and mountains
September 1, 2019

The Alaska Geochemical Database Version 3.0 (AGDB3) contains new geochemical data compilations in which each geologic material sample has one best value determination for each analyzed species, greatly improving speed and efficiency of use. Like the Alaska Geochemical Database Version 2.0 before it, the AGDB3 was created and designed to compile and integrate geochemical data from Alaska t

USGS
August 29, 2019

To better constrain the influence of sea-level rise on waves and sediment transport over a fringing coral reef flat, an experiment was conducted across a large fringing reef off the south shore of Molokai, Hawai’i. Here we provide data on water levels, waves, currents observed during this field effort. Additional data sets will be added as they become available.

Filter Total Items: 492
Mercury MESSENGER Global DEM 665m (64ppd) v2 Oct. 2016
November 5, 2018

From the USGS press release: 

The first topographic map of Mercury was released by the U.S. Geological Survey, Arizona State University, Carnegie Institute of Washington, Johns Hopkins University Applied Physics Laboratory and NASA. This high-resolution map provides the first comprehensive view of Mercury’s entire surface, illustrating the planet’s craters, volcanoes and tectonic landforms...

Moon Apollo Image Processing
November 5, 2018

In the early 1970s, specialized cameras onboard the Command Modules of the last three Apollo missions (15, 16, 17) photographed nearly 25% of the Moon in stunning detail. Today, scientists from Flagstaff’s U.S. Geological Survey, Arizona State University, and NASA are working together to reconstruct the lunar surface from these nearly 50-year-old photographs.

Kaguya TC Ortho V02 Global Mosaic 474m (64ppd)
November 5, 2018

The Japan Aerospace Exploration Agency (JAXA) launched "KAGUYA (SELENE)" to obtain scientific data of the lunar origin and evolution and to develop the technology for the future lunar exploration. With permission from JAXA, researchers at the U.S. Geological Survey (USGS) Astrogeology Science Center have compiled and are releasing multiple near-global mosaics derived from data acquired by the...

Themis global thermal-inertia tile map
November 5, 2018

This product is a global thermal inertia mosaic of Mars generated from high-resolution Thermal Emission Imaging System (THEMIS) nighttime infrared images (Christensen et al., 2004; Fergason et al., 2006a) that allows the identification, assessment, and global correlation of martian surface materials. The higher spatial resolution of THEMIS data (100 m per pixel), relative to Thermal Emission...

Gusev Crater Thermal Emission Imaging System (THEMIS) Infrared mosaic
November 5, 2018

In 2003-2005, the USGS worked under the guidance of NASA's Mars Critical Data Products Initiative to conduct research on how controlled large area or global 2001 Mars Odyssey THEMIS IR image mosaics could be generated. The products listed here represent a sampling of the significant data files generated during that research.

Mars Themis Day Mosaics
November 5, 2018

The objective of this work is to assemble and cartographically control Thermal Emission Imaging System (THEMIS; Christensen et al. 2004) daytime infrared (IR) and nighttime IR images. In a cartographically controlled mosaic, individual images are registered to one another so that all feature boundaries align. This intermediate mosaic (a “semi-controlled” mosaic) is then registered to a known...

Mars Themis Night Mosaics
November 5, 2018

The objective of this work is to assemble and cartographically control Thermal Emission Imaging System (THEMIS; Christensen et al. 2004) daytime infrared (IR) and nighttime IR images. In a cartographically controlled mosaic, individual images are registered to one another so that all feature boundaries align. This intermediate mosaic (a “semi-controlled” mosaic) is then registered to a known...

Tile Map MOLA
November 5, 2018

The objective of this work is to assemble and cartographically control Thermal Emission Imaging System (THEMIS; Christensen et al. 2004) daytime infrared (IR) and nighttime IR images. In a cartographically controlled mosaic, individual images are registered to one another so that all feature boundaries align. This intermediate mosaic (a “semi-controlled” mosaic) is then registered to a known...

Perspective views of the central peak of Tsiolkovskiy crater Digital elevation data derived from Apollo Panoramic images
November 5, 2018

USGS LMMP products will soon be available at the LMMP Portal. These include very large high resolution DTMs and orthomosaics of close to 50 key sites on the lunar surface, and high resolution controlled polar mosaics. These products constitute an important initial step in processing LRO datasets and should greatly facilitate the exploration and study of these significant lunar sites.

Portion of the Coprates quad which includes Valles Marineris
November 5, 2018

This global image map of Mars has a resolution of 256 pixels/degree (scale approximately 231 m/pixel at the equator). The black-and-white mosaic is processed to emphasize local topographic features. This mosaic, known as Mars Digital Image Model (MDIM) 2.1, replaces two earlier mosaics produced by the USGS from the same set of approximately 4600 Viking Orbiter images...

Mars MOLA Tracks
November 5, 2018

The U.S. Geological Survey has recently completed a final revised version of its 231 m/pixel global Viking image mosaic of Mars that has substantially improved geodetic accuracy compared to versions released in 1991 and 2001. This mosaic, known as MDIM 2.1, is currently available in the USGS ISIS file format and will be formatted and submitted to the NASA Planetary Data System (PDS) in...

Mars Control Vectors
November 5, 2018

Distributed here are control network data for solar system bodies (planets, moons, and asteroids) other than the Earth. Each control network is essentially a set of photogrammetric or radargrammetric solution (input and output) files. The input files consist of, aside from a priori information, measurements of common points (control points, or sometimes tie points) on images of...

Filter Total Items: 4,983
Infrared photo of plane in flight
October 21, 2019

Every work day at the USGS Earth Resources Observation and Science (EROS) Center, contractor Mike Austad pulls up a chair and begins scanning aerial photographs of the Earth’s surface into the massive public database that is EarthExplorer.

gray-scale map of San Francisco Bay area
October 17, 2019

Today, the U.S. Geological Survey and the State of California pressed the “go” button to allow the first-ever statewide public testing of the California Early Earthquake Warning System, which is powered by USGS’s earthquake early warning alerts, called ShakeAlerts.

vertical timeline with text bullets
October 17, 2019

How will ShakeAlert® likely perform now on a large earthquake impacting a major urban area? How much warning will you get? To answer this, let’s do a thought experiment...

Read the new Science for Everyone article at What if the ShakeAlert Earthquake Early Warning System Had Been Operating During the M6.9 1989 Loma Prieta Earthquake?

ROV control room
October 16, 2019

Keep up to speed with our EXPRESS research cruise with this latest seafloor syntax!

Color photo of research team near Faribanks, Alaska
October 15, 2019

In the Arctic, there are lakes where the bubbles will burn.

The bubbles are filled with methane gas. The flammable archaeal belches form as microbes feast on stores of long-frozen organic matter, freed up for decomposition thanks to permafrost thawing somewhere deep beneath the lakebed.

aerial view of road damage after the Ridgecrest, CA earthquake
October 15, 2019

Effects from the two July 2019 Ridgecrest, CA earthquakes were observed in several USGS continuous groundwater-level monitoring sites in California, Nevada, and Arizona.

TNMCorps Mapping Challenge: Cemeteries in Calhoun, Jackson, and Kalamazoo Counties, MI
October 10, 2019

Here's the weekly update for this challenge.  Approximately 50 points have been edited since the last update.  Nice work!

TNMCorps Mapping Challenge: City/Town Halls in Ohio and West Virginia
October 10, 2019

This challenge is coming along nicely with another 150 points added since our last update!