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Movie showing ground motion of four earthquakes propagating across a high density seismic array in Long Beach, California. Data was recorded by NodalSeismic,...
Seismic activity is to be expected in the Los Angeles region as the major hazard threat in the area. This area has a great number of sensors which now allows us to visualize seismic waves better than ever before. This video show 4 earthquakes (starting at 0:45, 2:20, 6:00, and 8:35). For more information on the science behind this clip, read the adptly named blog, The Trembling Earth.
Tags: visualization, disasters, physical, Los Angeles.
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A steep slope and unstable ground in this picture from Egypt results in mass wasting and the 'flow' of the sand down the slope. Sand dunes are often formed more by aeolian (wind) processes, making this image especially noteworthy.
Tags: physical, geomorphology, erosion, landforms.
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.
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.
Sometimes we all want to see a fabulously gorgeous physical landscape and marvel at the beauty that is in this world. For some other spectacular images, here is a great collection of images (without much geographic specificity though).
This project investigates the coastal impacts of hurricanes and extreme storms.
Here is some more post-Sandy geo-spatial imagery. LIDAR (think sonar and radar but with light and lasers) is Light Detection And Ranging that can produce some amazing data.
Hiking to the top of Preikestolen (the Pulpit Rock) near Stavanger, Norway. An amazing and wondrous hike.
For the inner explorer in all of us, this is a geographic dream. Click here to read more about this fantastic climb from a National Geographic explorer.
Tags: Europe, landforms, NationalGeographic.
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 a visually stunning video montage with clips compiled from the Discovery Channel's series "Planet Earth."
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.
Displayed is a map originally produced by Derek Watkins. This map is a fantastic combination of physical and cultural geography. While most flowing bodies of water will be called rivers or streams, the lesser used terms (brook, fork, bayou, run, arroyo, etc.) show a striking regionalization of toponym regions. What do these patterns indicate? Why are in those toponyms found in those particular places?
Pictures of these rare sandbars that extend to a nearshore island.
Coastal physical geography produces beautiful landforms...these tombolos (some famous like Mont St. Michel) provide visual examples of numerous geomorphological processes.
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.
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.
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...
Although these were designed specifically for GIS day during Geography Awareness Week, these 2 excellent map-based treasure hunts from ESRI are great any time of year. The answer to the question will only pop up in you are zoomed in the the right region (SHIFT + Make a box = Zoom to area). These links will take you to the World Cities quiz and also to the Mountains quiz.
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!
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 natural landscapes shown as captured by satellite imagery is as beautiful as anything artists have ever created. Some of the colors shown in the video may seem otherworldy. Most of those color anomalies are due to the fact that remotely sensed images have more information in them than just what we see in the visible portion of the electromagnetic spectrum. Some of these images are processed to show different bands so we can visually interpret data such as what is in the near infra-red band, skewing the color palette.
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.
See a photo of Iguazu Falls in South America and download free wallpaper from National Geographic.
Beautiful image! South America's equivalent to the Niagara Falls is a place that students should see.
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