Raven Maps are beautiful examples of shaded-relief wall maps that display the elevation of a state in vibrant colors. These large maps look great in a classroom, den or office. Use one to mark the locations of your work or company.
Since 1972 the “Roadside Geology” series has provided introductory information on the geology of states and small regions of the United States.
The books provide a combination of maps, travel logs, photos and commentary for the geology that can be seen along highways or visited at parks and public viewing areas. They are popular with geologists, teachers, students and others who are interested in the Earth.
National Geographic has an interesting article about how many small communities on the seaward edge of the Mississippi River delta are being lost to subsidence and sea level rise.
The community of Leeville (shown in Google map below) is featured in the article. If you toggle between “Map” and “Sat” you will see how the map greatly overstates the amount of dry land – at least on the day that the satellite image was acquired.
The folks at MyTopo.com are now printing supersized topo maps; large enough make a huge 8′ x 5′ (or 5′ x 8′) map that will look fantastic on the wall of your office, conference room, lobby, cabin or den. These maps are custom-centered on any location that you pick using their online map-making tool.
We are affiliates of MyTopo.com and receive a commission on sales.
Although only a few hundred feet of the Magnolia Platform is visible above water level its total height from the bed of the seafloor to the top of the platform is 4,698 feet (1,432 meters). Some people consider it the world’s tallest structure.
“The Upper Cretaceous Austin Chalk forms a low-permeability, onshore Gulf of Mexico reservoir that produces oil and gas from major fractures oriented parallel to the underlying Lower Cretaceous shelf edge. Horizontal drilling links these fracture systems to create an interconnected network that drains the reservoir.” Quoted from USGS Scientific Investigations Report 2012–5159.
Today the U.S. Geological Survey announced that Landsat 5 will be decommissioned over the coming months, bringing to a close the longest-operating Earth observing satellite mission in history. [...] Now in its 29th year of orbiting the planet, Landsat 5 has long outlived its original three-year design life.
The Center for Disease Control reports record levels of West Nile virus in humans. Over 70 percent of the cases have been reported from six states (Texas, South Dakota, Mississippi, Oklahoma, Louisiana, and Michigan) and almost 45 percent of all cases have been reported from Texas. The common symptoms are fever and neck stiffness
USGS has a new mapping technique known as “terrestrial lidar” to map urban flooding during events like Hurricane Isaac. “In a four-to-five minute scan, the instrument collects millions of topographic data points in a full 360-degree view to quickly produce highly accurate topographic information and can map areas up to two-thirds of a mile away.” Quote from the USGS press release.
“Every summer for the past several decades, a large dead zone has threatened the economic and ecological health of the Gulf of Mexico, the nation’s largest and most productive fishery.” Quoted from the USGS press release.
“The Mississippi River Delta is one of the largest and most productive coastal ecosystems in North America. From energy, to fisheries, to navigation, the richness of this ecosystem has sustained the U.S. economy for 300 years. [...] This document presents that evidence, based on a thorough examination of the primary questions people have raised about the future of the Mississippi River Delta.” Quoted from the report.
“The Earth’s crust beneath the Mississippi Delta sinks at a much slower rate than what had been assumed. [...] However, these subsidence rates are small compared to the rate of present-day sea-level rise.” Quoted from the National Science Foundation press release.
An article on the New York Times website explores the impact of sea level rise on the United States. Coastal flooding is expected to become much more common in the near future and millions of people could be displaced by rising waters. Florida, New York, Loisiana, California and the Chesapeake area are at particular risk.
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Homeowners Insurance usually does not cover damage caused by floods, landslides, earthquakes and other geohazards.
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