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Topography and elevation matters. We can dry to make water dry ground (and vice versa), but not without future consequences.
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For decades, south Louisiana residents have watched coastal landmarks disappear as erosion worsened and the Gulf of Mexico marched steadily inward.
Just because you've mapped a physical land feature, it doesn't mean it will stay that way forever. This is a reminder that the Earth and it's cultural and physical landscapes are constantly changing.
Tags: mapping, erosion, landscape.
News 8 chief photojournalist Kevyn Fowler captured a road collapsing in Freeport, Maine during a storm.
The forces of erosion are usually slow and gradual, wearing away at landforms over the course of years. This video show the quick and dynamic factor that erosion can be...this is easily the most compelling 3-minute video about a single patch of road that I've ever seen.
Tags: physical, water, disasters, geomorphology, erosion.
Another reason why you shouldn't drive on flooded roads. Amazing how quickly this road went from looking fine to having a gaping hole in it.
Very interesting view of the forces of erosion. This would make a good addition to any science discussion that covers erosion and the forces of nature on the land.
Erosion in Action | @scoopit via @APHumanGeog http://sco.lt/...
"A canyon is a deep, narrow valley with steep sides."
This encyclopedic entry is a concise explanation of the environmental forces that create canyons.
Tags: water, physical, geomorphology, landforms, National Geographic.
Video of a sandbox equipped with a Kinect 3D camera and a projector to project a real-time colored topographic map with contour lines onto the sand surface. ...
Many of our first experiments of creating landforms and designing a new world started in the sandbox. This video shows how that early childhood activity can make for an excellent classroom demonstration to shows how Earth's physical systems work. If you happen to have a digital topographic map to superimpose on the sandbox and a GPU-based water simulation, then you've got this fantastic video. Click here to learn more about this UC Davis project on the visualization of lake ecosystems.
Tags: water, physical, geomorphology, landforms, visualization.
A 150-yard-long chunk of State Highway 89 collapsed about 5 a.m. roughly 25 miles south of Page
Just a reminder that the Earth beneath our feet (and roads and buildings) are a part of a dynamic system that changes.
An initial analysis of the Mount Dixon landslide in New Zealand on Monday
There are some great images (and a post-landslide helicopter flight video) of the massive landslide that occurred Jan 21, 2013. The rockslide extends over 3 km, with an elevation change of approximately 800 meters. This is an excellent example to help students visualize mass wasting, alpine glaciation and erosion in general. While the mountain didn't explode strictly speaking, I couldn't help but love the headline "Mount Dixon explodes!"
Tags: New Zealand, physical, geomorphology, erosion.
Fulgurites are the rocks that form when lightning strikes sand (there are other types as well) and it creates a hollow tube. Think of it as petrified lightning--super cool!
Who says you can't integrate geography and real world applications into the math curriculum? Paul Bouke has scoured the Earth searching for fractals in the natural environment and created this amazingly artistic remote sensing gallery (with KMZ files for viewing in Google Earth as well).
Tags: Remote sensing, art, math, google, physical, landforms, geomorphology.
This is a great set of images that show coastal processes for a geomorphology or physical geography class. Pictured above is Palm Bay, Australia, which also happens to show fluvial processes as well.
Thousands of tons of chalk from the famous White Cliffs of Dover have collapsed into the sea following a huge rockfall.
An excellent example of erosion and the processes that have shaped an iconic landscape. The accompanying article has numerous pictures from a variety of angles that truly tell the story.
The site is in Chinese, but the images are spectacular. They put a glass trail on the mountain Tyanmen (Heaven's Gate), located in Zhangjiajie National Forest Park in Hunan Province, China.It is a mountain in this park inspired the famous film "Avatar," the idea of floating mountains of Pandora. Below is a Google image search for "Zhangjiajie National Forest Park." Prepare to be amazed.
Flood Map shows the map of the area which could get flooded if the water level rises to a particular elevation.
Still in work in progress, but in essence this is a GIS layer showing which areas are at risk for flooding. You can set the elevation level to monitor where the threat is greatest and where it will infrequently occur as well.
This infographic is stunning in its artistry and presentation of how mountains and rivers "stack up" next to each other (Good to point out that the rivers were "straightened" for comparative purposes). The image comes from the General Atlas of the World, which was published in 1854. It contained upwards of seventy maps, reproduced from the steel engravings of noteworthy cartographers Sidney Hall and William Hughes. For the legend and more about this map see: http://io9.com/5855100/gorgeous-victorian-infographic-shows-earths-mountains-and-rivers-as-we-knew-them-over-150-years-ago
1) What is a hotspot? A volcanic "hotspot" is an area in the upper mantle from which heat rises in a plume from deep in the Earth. High heat and lower pressure at the base of the mantle facilitates melting of the rock. This melt, called magma, rises through cracks to the surface and forms volcanoes. As the tectonic plate moves over the stationary hot spot, the volcanoes are rafted away and new ones form in their place.
Why are the Hawaiian Islands a linear formation if there are not plate boundaries in that region? Why are the islands seemingly arranged from largest to smallest? The answers lie in the physical geography of 'hot spots.' After this introductory video, you can learn more about the geologic life cycle of a hot spot volcanic island in this companion video.
Tags: Oceania, physical, geomorphology, landforms.
Climate change is dramatically altering the Swiss Alps, where hundreds of bodies of water are being created by melting glaciers. Though the lakes can attract tourists and even generate electricity, local residents also fear catastrophic tidal waves.
Earth systems are inherently dynamic; however a change to system such as climate change can upset the system dramatically.
Tags: climate change, water, physical, geomorphology, landforms.
Hi guys, this is an interesting read that shows some of the positive benefits of global warming and specifically the melting glaciers in the Swiss Alps.
A resource for the topic 'Climate change'
What can we do learn of this? Will send this to my students.
Scraped clean and weighted down for thousands of years by Pleistocene ice sheets, Akimiski Island in James Bay provides a case study of how Earth's land surfaces evolve following glaciation.
Tags: remote sensing, geospatial,Canada.
Many of you have seen the YouTube video of the meteor in Russia this week (and were you wondering why so many Russians have cameras on their dashboards?). This show the geologic impact of the largest of meteors and here are links to a map (with the data) of all the known meteorites to have landed. Pictured above is Meteor Crater in Arizona, one of the most powerful impacts the Earth has even seen.
This article and the selected gallery is based on the free e-book "Earth as Art" which I've mentioned here before earlier. This particular image is fantastic for teaching about geomorphology and river systems. Students can 'see' the historical layers of a meandering stream winding it's way across the landscape. Connecting the physical geography to human geography, analyzing the flood plains can help explain the land use and settlement patterns in this Mississippi Delta image.
UPDATE: Here's another meandering stream image (Willamette River, Oregon) that shows the dynamism of fluvial processes quite nicely.
the beauty of our earth...
Time and time again, we're reminded of nature's beauty. It's hard to believe, but these photos of real landscapes, not abstract paintings.
Andre Ermolaev, through his photography has captured the beauty of Iceland's geomorphology. Being on the Mid-Atlantic Ridge, Iceland has abundant volcanic ash which adds rich color to the fluvial systems.
Tags: geomorphology, physical, Europe, fluvial, water, landforms, images.
The lithosphere (Earth's crust) is a hard, rigid plate on top of a softer molten layer known as the asthenosphere. Sounds like an Oreo to me! As a crude analogy that lets you bring food into the classroom, this lesson on plate boundaries sound like a winner. Read this for an academic article on how to use Oreo's to teach about Earth's crust.
Yesterday was Earth Day, a time set aside to increase awareness of the natural environment and the impact of our collective actions...
This is a gorgeous set of 39 images that are all view the Earth and captures images for above. These aerial photography and remote sensing images focus of a wide range of topics such as the cultural landscape, the environment, earth science, cultural ecology and urban systems. The photo above is of Mont-Saint-Michel, a tourist attraction and UNESCO world heritage site in northwestern France that is the world's premier example of the tombolo landform.
Emissions of gas and ash indicate an increase in activity at Costa Rica’s Turrialba volcano in January 2010.
A new vent opened this month on Turriabla, the easternmost of Costa Rica's active volacanoes. This false-color, near-infrared satellite image would be an effective teaching tool to discuss the importantce of geospatial technologies to monitor the Earth's surface.
its crazy how something so dangerous can be so pretty.
"Kinetic City: Shape It Up"
What forces shape the Earth? What timeframe is necessary to create these changes? This is a powerful tool, especially for the elementary school and middle school teachers to use.
"October 28, 2011—The White Salmon River in Washington state is flowing again as the nearly 100-year-old Condit Dam was disabled with explosives Wednesday. The reservoir draining took about 2 hours. Further demolition is scheduled in 2012."
Don't have a water table to demonstate fluvial geomorphology? This Time Lapse video demonstates deposition and erosion powerfully. This is also a useful discussion started for human and environmental interactions.