Group items tagged

"Compare NOAA satellite imagery from before and after Hurricane Sandy and investigate damage caused by the superstorm in the Mid-Atlantic and Northeast. Click and drag the white bar to compare historical and current imagery. You can also use the included bookmarks to explore some of the the most damaged areas. "

Jim found this site but is too shy to post it on Diigo. It has side-by-side imagery showing 1975, 2000, and change in vegetative cover in that time interval. Searchable by location.

"Last week we made imagery from NASA's MODIS available as an overlay for Google Earth, which currently shows the extent of the oil spill through April 29, and we'll continue to add more imagery as it becomes available. We've also made radar images from ESA's ENVISAT available through this KML file. Below, you can see the progression of the spill over time."

High-resolution earth imagery has provided ecologists and conservationists with a dynamic new tool that is enabling everything from more accurate counting of wildlife populations to rapid detection of deforestation, illegal mining, and other changes in the landscape.

"The MODIS Rapid Response System generates daily near-real-time imagery of the oil in the Gulf of Mexico, including GIS compatible formats. Images are available in photo-like, true and false color from both the Terra and Aqua satellites at 2km, 1km, 500m, and 250m resolutions."

Great connection to "Bird's Eye View of Changing Landscapes." "China's Pearl River Delta has experienced massive urbanization since the early 1970s. Derived from Landsat imagery, this animation shows urban expansion between 1973 and 1999."

"[Noreen] Thomas [a farmer] enjoys this view from hundreds of miles above Earth's surface -- not just for the beauty, but the utility. She is among a growing group of Midwest farmers who rely on satellite imagery from Landsat to maximize their harvest and minimize damage to their fields. It's become another crucial tool like their tractors and sprinklers."

Satellite imagery matching game for middle and high school students.

2 animated images showing one year of seasonal transformations on Earth, created by stitching together 12 cloud-free satellite imagery mosaics of Earth (NASA's "Blue Marble Next Generation") for each month.

Explore a variety of satellite image overlays

Compare two images in Google Earth side-by-side using both historical and current imagery.

"Google Earth Engine brings together the world's satellite imagery-trillions of scientific measurements dating back more than 25 years-and makes it available online with tools for scientists, independent researchers, and nations to mine this massive warehouse of data to detect changes, map trends and quantify differences to the earth's surface. "

"In this activity, undergraduate students learn to use satellite and aerial imagery, maps, graphs, spreadsheets, descriptive information, and statistics to compare energy and oil consumption rates between states in the United States and among various countries. They also use this information to explain these differences, as well as differences in categories of consumption, such as domestic, transportation, industrial, and commercial use. They are also asked for opinions regarding what measures countries should take toward reducing oil consumption. "

Fast and easy access to dynamic worldwide, multi-spectral, multi-temporal Landsat data for your projects. This is a great resource for observing and analyzing land use changes.

Amazing images of wildfires, hurricanes, status of the gulf oil spill, etc. Definitely worth checking out!

The GigaPan process allows users to upload, share, and explore brilliant gigapixel+ panoramas from around the globe. Users can zoom in to explore and collect observational data from these images.

"BioCarbon Tracker uses satellite data and advanced methods to map the ecosystems where biocarbon is stored, identify vegetation at risk from land use change and monitor where high biocarbon stock land such as forest is converted to agriculture."