Aug 31 2015

From The Space Library

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Revision as of 07:48, 3 September 2015

Release 15-176 NASA Arctic Field Campaign to Examine Ecosystem Impacts of Changing Climate

As part of a broad effort to study the environmental and societal effects of climate change, NASA has begun a multi-year field campaign to investigate ecological impacts of the rapidly changing climate in Alaska and northwestern Canada, such as the thawing of permafrost, wildfires and changes to wildlife habitats.

The Arctic Boreal Vulnerability Experiment (ABoVE) will bring together on-the-ground research in Alaska and northwestern Canada with data collected by NASA airborne instruments, satellites and other agency programs, including SMAP, OCO-2, and upcoming ICESat-2 and NISAR missions.

Over the next decade, scientists from NASA and other public and private organizations will investigate questions about the formidable region that spans about 2.5 million square miles (6.4 million square kilometers).

"Boreal forests and tundra are critical for understanding the ecological impacts of Earth’s changing climate," said Jack Kaye, associate director for research in NASA’s Earth Science Division in Washington. "These ecosystems hold a third of the carbon stored on land – in trees, shrubs, and the frozen ground of the permafrost. That’s a lot of potential greenhouse gases in play. We need to better understand these ecosystems, and how a warming climate will affect forests, wildlife and communities both regionally and globally."

ABoVE includes three project phases and two seasons of intensive airborne surveys. The research activities will be coordinated with other U.S. and Canadian partner organizations. The 21 projects selected for the first phase will investigate topics such as the impacts of wildfire on ecosystems and insect outbreaks on forest health.

"The region is rapidly changing, and we’ve already seen a lot of that from field measurements and remote sensing," said Scott Goetz, ABoVE science team lead and deputy director at Woods Hole Research Center in Falmouth, Massachusetts. "It’s an area that’s warming with climate change, and there’s a lot of potential for permafrost degradation, especially with these massive fires burning off the organic soil layer."

The field campaign will provide an opportunity to study how Arctic ecosystems respond to the scorching fires on a regional scale. More than 5 million acres in Alaska and 9.7 million acres in Canada have burned so far this year, making 2015 the second most devastating fire year on record for Alaska, with the most intensive three-week period of burning on record, according to Charles Miller, deputy science team lead for ABoVE at NASA’s Jet Propulsion Laboratory (JPL) in Pasadena, California.

ABoVE researchers will survey Alaska’s interior forests to better determine how much carbon is stored in these remote regions. They’ll investigate the extent and thawing rate of permafrost – soils that have been frozen for hundreds of thousands of years, locking in carbon-rich plant and organic matter.

“Warming air temperatures can thaw permafrost, which acts like unplugging a deep freezer,” said Peter Griffith, ABoVE chief support scientist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “The vegetation and carbon previously frozen in the soil starts to rot and decay – like food in an unplugged freezer – releasing methane and carbon dioxide into the atmosphere. This increase in greenhouse gases further warms air temperatures, perpetuating the cycle by causing more thawing and more greenhouse gas release.”

The ABoVE projects also will study impacts on the wildlife of Alaska and northern Canada, including habitat and migration changes for raptors, songbirds, Dall sheep, moose, caribou, wolves and brown bears.

The socio-ecological impacts of climate change will be a significant focus of the campaign. The Dall sheep study, for example, will examine the effects of their changing habitat on subsistence hunting and tourism. Another researcher group will work with village residents in the Yukon-Kuskokwim River Delta of western Alaska to track changes in vegetation, permafrost, fire and lakes.

“More societal impacts of change will be investigated in future projects, with another call for projects scheduled for 12 to 18 months from now,” Griffith said. "What’s happening in the Arctic is not staying in the Arctic. It certainly matters to the people who live there, but the consequences are far reaching."

The ABoVE field campaign’s research agenda was developed through workshops that brought together scientific experts from across the United States and Canada, and builds on ongoing NASA projects including the Carbon in Arctic Reservoirs Vulnerability Experiment (CARVE) and Airborne Microwave Observatory of Subcanopy and Subsurface (AirMOSS) airborne missions.

Release 15-177 NASA, USAID Open Environmental Information Hub for Southeast Asia

NASA and the U.S. Agency for International Development (USAID) Monday launched SERVIR-Mekong, a joint project to strengthen regional environmental monitoring in five countries in the lower Mekong region of Southeast Asia.

One of three SERVIR hubs now operating in developing regions of the world, the center is housed at the Asian Disaster Preparedness Center in Bangkok, Thailand, and joins a growing global community of scientists and decision-makers using publicly available data from space assets to address critical regional issues.

"Today, NASA demonstrates the human impact of its science mission here on Earth and our commitment to protecting the resources, the environment and most of all the millions of people living, working and raising new generations of pioneers and innovators across the region," said NASA Administrator Charles Bolden, who took part in the facility's official opening along with NASA Chief Scientist Ellen Stofan.

Researchers draw on a continuous stream of space-based climate, weather and other Earth observation data from NASA and its partners, sharing timely information with governments and researchers in Burma, Cambodia, Laos, Thailand and Vietnam and addressing issues such as water management, land use planning, disaster risk reduction and management of natural resources.

The SERVIR program helps governments and development stakeholders incorporate Earth observations and geospatial technologies into natural disaster response, improve food security, safeguard human health, and manage water and natural resources. Hubs in each region focus on issues and needs most critical to local populations.

"Under SERVIR-Mekong, we are tapping into the best available science and technology to help protect this region's vital ecosystems and the benefits they provide to society," said Beth Paige, director of USAID's Regional Development Mission for Asia. "Already, Asian scientists, NASA scientists and others are beginning to develop tools to build resilience and contribute to tackling some of the region's most pressing challenges."

Partnering with NASA and USAID, as part of the SERVIR-Mekong consortium, are the Asian Disaster Preparedness Center; Deltares, headquartered in Delft, The Netherlands; the Stockholm Environment Institute in Sweden; and, the Spatial Informatics Group of Pleasanton, California. SERVIR global demand support is provided by Development Alternatives Incorporated, headquartered in Bethesda, Maryland.

SERVIR was developed in coordination with the Group on Earth Observations, an alliance of more than 90 nations and organizations collaborating to build a global Earth-observing system to benefit society's needs. Named for a Spanish term meaning "to serve," the program was initiated in 2005 by researchers at NASA's Marshall Space Flight Center in Huntsville, Alabama, which continues to house the SERVIR Coordination Office. NASA, USAID and their partners operate SERVIR hubs in Kathmandu, Nepal, serving the Hindu-Kush-Himalaya region, and in Nairobi, Kenya, serving Eastern and Southern Africa. The first SERVIR hub, launched in 2005 in Panama City, Panama, served the Mesoamerican region and the Dominican Republic.

SERVIR is operated by the Earth Science Division's Applied Sciences Program in NASA's Science Mission Directorate in Washington. Marshall collaborates with four other NASA field centers on SERVIR: Goddard Space Flight Center in Greenbelt, Maryland; the Jet Propulsion Laboratory in Pasadena, California; Ames Research Center in Moffett Field, California; and, Langley Research Center in Hampton, Virginia.