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Seth Dixon
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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.
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KEpps
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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.
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Seth Dixon
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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. ...
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Seth Dixon
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A 150-yard-long chunk of State Highway 89 collapsed about 5 a.m. roughly 25 miles south of Page
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Seth Dixon
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It's already unlikely we'll get a view as good as the ones collected in "Earth As Art"
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Seth Dixon
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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.
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Seth Dixon
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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!
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Seth Dixon
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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.
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Seth Dixon
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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.
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Scooped by
Seth Dixon
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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.
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Seth Dixon
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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.
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Seth Dixon
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Seth Dixon
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News 8 chief photojournalist Kevyn Fowler captured a road collapsing in Freeport, Maine during a storm.
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Seth Dixon
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"A canyon is a deep, narrow valley with steep sides."
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Seth Dixon
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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.
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Scooped by
Seth Dixon
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Scooped by
Seth Dixon
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Hawaii, Kauai Island...where they shot the Jurassic Park...
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).
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Seth Dixon
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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.
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Scooped by
Seth Dixon
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Scooped by
Seth Dixon
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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.
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Scooped by
Seth Dixon
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This a visually stunning video montage with clips compiled from the Discovery Channel's series "Planet Earth."
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Scooped by
Seth Dixon
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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.
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Scooped by
Seth Dixon
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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?
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Scooped by
Seth Dixon
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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.
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