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A New Landsat-based Snow Cover Product from USGS

David Selkowitz, a Research Geographer with the USGS Alaska Science Center, and his team have developed a snow cover product, that allows users to look at historical snow cover through time. Selkowitz presented a poster on the Landsat-based data product at #AGU15. Here’s what we learned from him this week.

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Longwall mining machinery in a Colorado coal mine

Assessing Longwall Mining Impacts on the Forests Above

Erin Pfeil-McCullough, a graduate student at the University of Pittsburgh, gave a talk at #AGU15 on insights that she has gained from her research to determine what impacts longwall mining has on forest canopies above as the ground subsides and local hydrology is altered.

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Landsat Helps Inform Restoration Decisions in the Great Lakes

Charles Perry, a Research Soil Scientist with the USDA’s Forest Inventory and Analysis group, gave a talk about his research that uses Landsat to monitor land use and land cover change in watersheds surrounding the Great Lakes at #AGU15. He is able to link the land use and land cover change information with other ancillary data to predict water quality, such as the amount of phosphorus (which feeds algae) in the lakes.

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News Archives
migrating birds

Landsat Helps Feed the Birds

The BirdReturns program, created by The Nature Conservancy of California, is an effort to provide “pop-up habitats” for some of the millions of shorebirds, such as sandpipers and plovers, that migrate each year from their summer breeding grounds in Alaska and Canada to their winter habitats in California, Mexico, Central and South America.

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USGS Maps Anthropogenic Land Use Trends, 1974–2012

More and more we hear the term “anthropocene” used to describe the current epoch of our planet when humankind has had a profound impact on Earth. This month, the U.S. Geological Survey has released a Landsat-based report and dataset on anthropogenic land use trends in the U.S. between 1974 and 2012.

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New Global Data Finds Tropical Forests Declining in Overlooked Hotspots

The world lost more than 18 million hectares (45 million acres) of tree cover in 2014, an area twice the size of Portugal, according to new data from the University of Maryland (UMD) and Google released by Global Forest Watch. The data find that tropical forests are in the most trouble, losing 9.9 million hectares (24.5 million acres) of tree cover in 2014 – over half of the global total. A three-year-average shows tree cover loss is the highest it’s been since 2001.

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Landsat Images Provided to the International Charter in August 2015

The Charter concept is this: a single phone number is made available to authorized parties providing 24/7 contact to a person who can activate the charter. Once activated, a project manager takes charge. The project manager knows what satellite resources are available, how to task them to collect data, and how to quickly analyze the collected data to create impact maps for first responders. These maps, provided to responders for free, often show where the damage is and where crisis victims are, allowing responders to plan and execute relief support.

Read More »
News Archives
migrating birds

Landsat Helps Feed the Birds

The BirdReturns program, created by The Nature Conservancy of California, is an effort to provide “pop-up habitats” for some of the millions of shorebirds, such as sandpipers and plovers, that migrate each year from their summer breeding grounds in Alaska and Canada to their winter habitats in California, Mexico, Central and South America.

Read More »

USGS Maps Anthropogenic Land Use Trends, 1974–2012

More and more we hear the term “anthropocene” used to describe the current epoch of our planet when humankind has had a profound impact on Earth. This month, the U.S. Geological Survey has released a Landsat-based report and dataset on anthropogenic land use trends in the U.S. between 1974 and 2012.

Read More »

New Global Data Finds Tropical Forests Declining in Overlooked Hotspots

The world lost more than 18 million hectares (45 million acres) of tree cover in 2014, an area twice the size of Portugal, according to new data from the University of Maryland (UMD) and Google released by Global Forest Watch. The data find that tropical forests are in the most trouble, losing 9.9 million hectares (24.5 million acres) of tree cover in 2014 – over half of the global total. A three-year-average shows tree cover loss is the highest it’s been since 2001.

Read More »

Landsat Images Provided to the International Charter in August 2015

The Charter concept is this: a single phone number is made available to authorized parties providing 24/7 contact to a person who can activate the charter. Once activated, a project manager takes charge. The project manager knows what satellite resources are available, how to task them to collect data, and how to quickly analyze the collected data to create impact maps for first responders. These maps, provided to responders for free, often show where the damage is and where crisis victims are, allowing responders to plan and execute relief support.

Read More »