Graduate students at West Virginia University are using LiDAR, a high resolution mapping technology, to detect and map historic and prehistoric landslides. The maps can then be used to avoid landslide areas prior to construction and identify areas where mitigation might be considered.
USGS announced that they have published new topographic maps and orthophoto images for the state of Utah in pdf format. A small sample of the Moab quad is shown below. If you want to see it full size in a pdf document click here (28 megabytes).
The Missouri Geological Survey has recently launched a new online tool called the Missouri Geosciences Technical Resource Assessment Tool. GeoSTRAT is a web application that makes geologic and hydrologic data readily available for public use. GeoSTRAT enables users to easily visualize and explore geospatial data using an interactive map developed on an Esri and Google platform to allow 3D viewing of the land surface. Data can be downloaded in formats compatible with a variety of free and commercial mapping software and includes layers such as geology, bedrock elevation, water wells, sinkholes, historic mine locations, caves, springs, dye traces, well logs, aquifers, losing streams and a host of other coverages and associated metadata. GeoSTRAT can be used in the office or in the field for site assessments in areas such as geologic hazards, geotechnical consulting and engineering, emergency response, local and regional planning, water availability and a multitude of other purposes.
The Arizona Geological Survey has a reputation for offering an enormous number of recent and historic publications in electronic format online where anyone anywhere can download them to read or print without a fee. You can find them in the AZGS Document Repository.
In addition, there are a lot of other Arizona earth science books, maps and products that they are unable to distribute for free online. They are now offering them through the Arizona Experience Store. There you can find books, maps and other documents from the Arizona Geological Survey, Arizona Geological Society, Arizona-Sonora Desert Museum Press, University of Arizona Press, National Geographic, Bureau of Land Management, United States Forest Service and many other sources. They are also offering other “Arizona” merchandise from the Arizona Experience Store’s physical location in Tucson.
“Researchers at MIT and the Swiss Federal Institute of Technology (ETH Zurich) have developed a mapping technique that measures how much a river network is changing, and in what direction it may be moving.” Quoted from the MIT video release.
Did you know that there are seven distinct depressions on Earth that are over 100 meters below sea level, and twenty-three that are over 10 meters below sea level and ten more that are at least two meters below sea level? We have a google map that points to ten of these depressions and a list of the remaining locations.
In response to drought conditions in California the University of California Center for Hydrologic Modeling has published: Water Storage Changes in California’s Sacramento and San Joaquin River Basins From GRACE. It provides a summary of water conditions based upon data acquired from NASA’s GRACE satellite.
The Energy Information Administration has an interactive energy map that allows you to discover the locations of facilities such as natural gas power plants, petroleum refineries, natural gas pipelines, LNG import/export terminals and much more. The choropleth map below shows the photovoltaic solar potential of the 48 states with solar power plants plotted as yellow dots.
“The USGS, in cooperation with other Federal agencies, has posted new Idaho US Topo quadrangles (1,193) and New Mexico quads (1,980 maps) which include Public Land Survey System (PLSS). These are added to the growing list of states west of the Mississippi River to have PLSS data added to US Topo maps.” Quoted from the USGS press release.
Many events, programs, organizations and people influence the development of a geological map. An article in the winter edition of Arizona Geology traces the development of the Geologic Map of Arizona.
After being down for a couple of days for a software update, our interactive San Andreas Fault map is back in action. You can use it to follow the approximate trace of the fault from the Salton Sea in Southern California to near Shelter Cove, north of San Francisco. For more information about the San Andreas Fault visit SanAndreasFault.org, a website by Dr. David Lynch, who provided data used to make the interactive map.
Hundreds of landslides occur every year in North Carolina but lawmakers have almost eliminated a program that can help developers avoid building homes, commercial and public buildings on ancient landslides and slide-prone areas. It can also help the state highway department and utility companies avoid building roads and pipelines across ancient landslides and slide-prone areas. This one-time job was costing about $350,000 per year and would only require mapping the western part of the state where most landslides occur.
In a 24-year period landslides in the state killed 7 people and destroyed 85 homes. Not available is how much is spent on repairs to roads and utilities. The annual cost of these is undoubtedly many times the cost of the landslide mapping program – which is temporary.
The economics of this project suggests that millions per year should be spent to get it done as quickly as possible – but lawmakers decided to cut it.
“An analysis of one of the 70-odd Martian meteorites discovered so far, a chunk of rock found several years ago by Bedouins in the Sahara Desert, has revealed the first known fragments of zircon from the red planet.” Quoted from The Australian press release.
“The ravages of deforestation, wildfires, windstorms and insects on global forests during this century are revealed in unprecedented detail in a new study based on data from the NASA-U.S. Geological Survey Landsat 7 satellite.” Quoted from the NASA press release.
“It is great to have these 748 updated US Topo maps for our state available online at no charge.” said Charley Hickman, the Geospatial Liaison for Ohio. “We appreciate the continuing improvements in this product, including the availability of PLSS township, range, and section information.”
“Global map of crustal thickness of the moon derived from gravity data obtained by NASA’s GRAIL spacecraft. The lunar near side is represented on the left hemisphere. The far side is represented in the right hemisphere.”
We have posted views of Earth from NASA’s Suomi satellite that show night illumination and natural gas flaring for oil industry sites in the Bakken Formation, Eagle Ford Shale, Alaska North Slope, United States Gulf, Mexican Gulf, Venezuela Orinoco Field, Brazil offshore basins, North Sea, North Africa onshore, west Africa offshore, and Persian Gulf.
“Models used by the IPCC estimate global temperature and precipitation patterns will change throughout the 21st century given current rising greenhouse gas levels. This video depicts a scenario in which carbon dioxide concentrations reach 670 parts per million by 2100, up from around 400 ppm today.” Quoted from the NASA video release.
“The Bureau of Economic Geology frequently fields calls from the general public to find information about clay deposits, uranium site locations, sand and gravel deposits, or what
resources, in general, are located at or around a specific location. The interactive Map provides the public with the means to search out locations on their own, and click on the points of interest, bringing up pertinent information…”
For more information about the map see the “Under the Radar..” section here.
The interactive Natural Hazard Viewer focuses on four hazards common to Arizona — geologic faults and earthquakes, earth fissures, floods and wildfire. Each hazard is described in detail and displayed as a layer on a map. Moreover, the natural hazard information is dynamic; site updates will occur as new or revised hazard data becomes available.
Editor’s Comment: Every state geological survey should have one of these!
“In keeping with rapid demand, the USGS has posted new US Topo quadrangles covering Colorado (1,794 maps) and Minnesota (1,689). These new quads replace the first edition US Topo maps for those states.” Quoted from the USGS press release.
These maps are beautiful. If you want to see a sample we have Mammoth Cave, Kentucky unzipped and ready for you to download as a .pdf document (30 megs). Click here to download. Be sure to zoom in to see the great detail.
New measurements made by Alaska’s Statewide Mapping Initiative and the United States Geological Survey have placed a new altitude on the summit of Mount McKinley, America’s highest mountain. It’s official height is now 20,237 feet instead of the previous 20,320 feet. (It didn’t really “shrink”. Just better measurement methods.)
USGS has an interactive map: Rare earth element mines, deposits, and occurrences. It gives access to information on mineral deposits containing rare earth elements and yttrium from around the world with grade and tonnage, and mineralogy.
As of yesterday the Rim Fire had burned 235,841 acres of brush, oaks, and pine in the Sierra Nevada Range near and in Yosemite National Park. NASA’s Earth Observatory has a day-by-day map that shows the spread of the fire atop of a shaded relief map.
“More than 400 new topographic maps are now available for the state of Alaska. The new maps are part of the U.S. Geological Survey Alaska Mapping Initiative, to update foundational data for the state and to replace the existing maps that are about 50 years old.” Quoted from the USGS Newsroom.
“Three new USGS products in an ongoing series by the California Seafloor Mapping Program were released August 9th, 2013 — a map set for the area offshore of Carpinteria in southern California, a catalog of GIS data layers for all of CSMP’s published maps, and a collection of videos and photos of the seafloor along the entire California coast.” Quoted from the USGS announcement.
USGS has published: Geologic map of the Winslow 30’ × 60’ quadrangle, Coconino and Navajo Counties, northern Arizona: U.S. Geological Survey Scientific Investigations Map 3247, pamphlet 25 p., 3 sheets, scale 1:50,000, by Billingsley, G.H., Block, D., and Hiza Redsteer, M.
USGS has published nearly 4000 new topo maps covering the states of Indiana, Iowa, North Carolina, Pennsylvania and Virginia. Retired maps can be downloaded at their Historical Topographic Map Collection. New maps are available for free download from The National Map.”
These maps are beautiful. If you want to see a sample we have Mammoth Cave, Kentucky unzipped and ready for you to download – but be warned that it is a really big file (30 megs) and will take quite a while to download – but well worth the wait…
If you have Adobe Reader or equivalent software, click here, get the download started, go for coffee, come back to a great map. Be sure to zoom in to see the great detail.
“The competition will highlight student research from around the world that utilizes field mapping and the creation of geologic maps as a major component.”
Quote from the contest announcement on the Geological Society of America website.
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