Land Cover Atlas helps communities 'see' vulnerabilities and craft stronger resilience plans
A new NOAA nationwide analysis shows that between 1996 and 2011, 64,975 square miles in coastal regions--an area larger than the state of Wisconsin--experienced changes in land cover, including a decline in wetlands and forest cover with development a major contributing factor.
Overall, 8.2 percent of the nation's ocean and Great Lakes coastal regions experienced these changes. In analysis of the five year period between 2001-2006, coastal areas accounted for 43 percent of all land cover change in the continental U.S. This report identifies a wide variety of land cover changes that can intensify climate change risks, such as loss of coastal barriers to sea level rise and storm surge, and includes environmental data that can help coastal managers improve community resilience.
"Land cover maps document what's happening on the ground. By showing how that land cover has changed over time, scientists can determine how these changes impact our plant's environmental health," said Nate Herold, a NOAA physical scientist who directs the mapping effort at NOAA's Coastal Services Center in Charleston, S.C.
Among the significant changes were the loss of 1,536 square miles of wetlands, and a decline in total forest cover by 6.1 percent.
The findings mirror similar changes in coastal wetland land cover loss reported in the November 2013 report, Status and Trends of Wetlands in the Coastal Watersheds of the Conterminous United States 2004 to 2009, an interagency supported analysis published by the U.S. Fish and Wildlife Service and NOAA.
This new NOAA analysis adds to the 2013 report with more recent data and includes loss of forest cover in an overall larger land area survey. Both wetlands and forest cover are critical to the promotion and protection of coastal habitat for the nation's multi-billion dollar commercial and recreational fishing industries..
Development was a major contributing factor in the decline of both categories of land cover. Wetland loss due to development equals 642 square miles, a disappearance rate averaging 61 football fields lost daily. Forest changes overall totaled 27,515 square miles, equaling West Virginia, Rhode Island and Delaware combined. This total impact, however, was partially offset by reforestation growth. Still, the net forest cover loss was 16,483 square miles.
These findings, and many others, are viewable via the Land Cover Atlas program from the NOAA's Coastal Change Analysis Program (C-CAP). Standardized NOAA maps allow scientists to compare maps from different regions and maps from the same place but from different years, providing easily accessible data that are critically important to scientists, managers, and city planners as the U.S. population along the coastline continues to grow.
"The ability to mitigate the growing evidence of climate change along our coasts with rising sea levels already impacting coastlines in ways not imaged just a few years ago makes the data available through the Land Cover Atlas program critically important to coastal resilience planning," said Margaret Davidson, National Ocean Service senior advisor for coastal inundation and resilience science services.
C-CAP data identify a wide variety of land cover changes that can intensify climate change risks-for example, forest or wetland losses that threaten to worsen flooding and water quality issues or weaken the area's fishing and forestry industries. The atlas's visuals help make NOAA environmental data available to end users, enabling them to help the public better understand the importance of improving resilience.
"Seeing changes over five, 10, or even 15 years allows Land Cover Atlas users to focus on local hazard vulnerabilities and improve their resilience plans," said Jeffrey L. Payne, Ph.D., acting director for NOAA's Coastal Services Center. "For instance, the atlas has helped its users assess sea level rise hazards in Florida's Miami-Dade County, high-risk areas for stormwater runoff in southern California, and the best habitat restoration sites in two watersheds of the Great Lakes."
Selected Regional Findings - 1996 to 2011:
All C-CAP data sets are featured on the Digital Coast. Tools like the Digital Coast are important components of NOAA's National Ocean Service's efforts to protect coastal resources and keep communities safe from coastal hazards by providing data, tools, training, and technical assistance. Check out other products and services on Facebook or Twitter.
NOAA's mission is to understand and predict changes in the Earth's environment, from the depths of the ocean to the surface of the sun, and to conserve and manage our coastal and marine resources. Join us on Twitter, Facebook and our other social media channels. Visit our news release archive.
Ben Sherman | Eurek Alert!
CO2 can be stored underground for 10 times the length needed to avoid climatic impact
28.07.2016 | University of Cambridge
Keep a lid on it: Utah State University geologists probe geological carbon storage
28.07.2016 | Utah State University
Transparent electronics devices are present in today’s thin film displays, solar cells, and touchscreens. The future will bring flexible versions of such devices. Their production requires printable materials that are transparent and remain highly conductive even when deformed. Researchers at INM – Leibniz Institute for New Materials have combined a new self-assembling nano ink with an imprint process to create flexible conductive grids with a resolution below one micrometer.
To print the grids, an ink of gold nanowires is applied to a substrate. A structured stamp is pressed on the substrate and forces the ink into a pattern. “The...
A new Fraunhofer MEVIS method conveys medical interrelationships quickly and intuitively with innovative visualization technology
On the monitor, a brain spins slowly and can be examined from every angle. Suddenly, some sections start glowing, first on the side and then the entire back of...
Researchers at the U.S. Department of Energy's (DOE) Ames Laboratory have discovered an unusual property of purple bronze that may point to new ways to achieve high temperature superconductivity.
While studying purple bronze, a molybdenum oxide, researchers discovered an unconventional charge density wave on its surface.
Munich Physicists have developed a novel electron microscope that can visualize electromagnetic fields oscillating at frequencies of billions of cycles per second.
Temporally varying electromagnetic fields are the driving force behind the whole of electronics. Their polarities can change at mind-bogglingly fast rates, and...
Breakup of continents with two speed: Continents initially stretch very slowly along the future splitting zone, but then move apart very quickly before the onset of rupture. The final speed can be up to 20 times faster than in the first, slow extension phase.phases
Present-day continents were shaped hundreds of millions of years ago as the supercontinent Pangaea broke apart. Derived from Pangaea’s main fragments Gondwana...
29.07.2016 | Event News
15.07.2016 | Event News
15.07.2016 | Event News
29.07.2016 | Power and Electrical Engineering
29.07.2016 | Life Sciences
29.07.2016 | Event News