Principal Investigator

Madelyn Savan

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Composited Landsat 8 imagery from March - May 2020 with a false color band combination (5, 4, 3). Dark red represents dense vegetation while light red represents less dense vegetation. Open water masks were applied to ALOS-PALSAR-1 images to delineate the water body extent of Laguna Seca in Belize between June 2008 (light blue) and after Tropical Depression 16 in October 2008 (dark blue). Environmental departments can make informed management decisions by monitoring flood-prone areas.  Keywords: Kat Tafoya, ALOS PALSAR 1, Landsat 7, seasonal inundation, forest canopy, wetlands, L-band SAR

As climate change increases the severity and frequency of extreme weather events in the tropics, it is vital for the safety of local communities and the health of ecosystems to monitor seasonal inundation. Forested inundation affects the ability of forested...

Principal Investigator

Dr. Sunita Yadav-Pauletti

 
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Using NASA Earth Observations to Map Winter Cover Crop Conservation Performance in the Chesapeake Bay Watershed

Winter cover crops are an essential component of adaptive management practices to reduce soil erosion, nutrient loss, and nutrient leaching leading to water quality degradation. The Maryland Department of Agriculture (MDA) and Chesapeake Bay partners (US Geological Survey and USDA Agricultural Research Service) oversee...

Principal Investigator

Mariam Moeen

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Turbidity processed imagery using 2020 Landsat 8 OLI/TIRS data. The Chandeleur Islands located on the southeastern coast of Louisiana are displayed. Shades of yellow indicate areas with high turbidity and darker shades of blue indicate areas with low turbidity. Concentrating on areas with higher turbidity allows the coastal restoration experts to know where land erosion occurs and identify ideal areas for seagrass revegetation.  Keywords: Water Resources, Turbidity, Seagrass, Breton National Wildlife Refuge (BNWR), Chandeleur Islands, Louisiana

The barrier islands of Louisiana’s Breton National Wildlife Refuge (BNWR) are disappearing due to sea level rise, extreme hurricanes, sediment starvation, and the Deepwater Horizon oil spill. This decline in land area has damaged important bird habitat and reduced the...

Principal Investigator

Rebecca Lehman

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Using NASA Earth Observations to Monitor Land-use Change and Map At-risk Coastal Habitats in the U.S. Virgin Islands

The United States Virgin Islands (USVI) are home to an array of diverse and stunning habitats. The beauty of the islands has continued to attract visitors and residents, which overtime has increased human development and impact. The resulting land-use change increases sediment loads and the...

Principal Investigator

Eric Jensen

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Slopes of post-fire median NDVI recovery derived from post-fire annual composites between 2002 and 2019 of harmonized Landsat 5 TM, 7 ETM, and 8 OLI satellites for the historic Hayman Fire that burned more than 130,000 acres of Colorado’s Front Range forest is pictured here. NDVI in burned areas that are recovering relatively quickly, moderately and slowly are shown in dark blue, green, and yellow, respectively.   Keywords: remote sensing, Landsat 8 OLI, Landsat 7 ETM, Landsat 5 TM, wildfire, vegetation recovery, Random Forest​

Forest composition and structure in the Colorado Front Range has been altered by changing wildfire regimes. In particular, increased moderate- and high-severity fire significantly reduces forest cover following fire and often results in reduced seedling regeneration. Reduced tree canopy regrowth...

Principal Investigator

Amanda Aragón

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Using NASA Earth Observations to Monitor Vulnerability, Wildfire Damage, and Recovery in the Appalachian Forests

Wildfires in the southeastern US are understood less than those in other portions of the nation. In October and November 2016, over sixty individual wildfires ignited among seven states in the Southern Appalachian region. These fires damaged hundreds of buildings, caused numerous power outages, and...

Principal Investigator

Amanda Aragón

 
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Using NASA Earth Observations to Monitor Vulnerability, Wildfire Damage, and Recovery in the Appalachian Forests

Wildfires in the southeastern US are less understood compared to other portions of the nation. In October and November of 2016, over 60 individual wildfires ignited among seven states in the Southern Appalachian region. These fires damaged hundreds of buildings, caused numerous power outages...

Principal Investigator

Dionne Blanks

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Using NASA Earth Observations to Obtain Water Quality Trends in the Mobile Bay and Mississippi Sound to Enhance Future Oyster Habitat Suitability and Fisheries Management

The Mobile Bay and Mississippi Sound region comprise the majority of the coastal estuaries along the Alabama and Mississippi Gulf Coast. These bodies of water provide the salinity conditions needed to sustain diverse wildlife species and coastal habitats. Changes in water quality parameters directly impact...

Principal Investigator

W. Patrick Frier

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Using NASA Earth Observations to Prioritize Locations for the Further Monitoring and Management of Cultural Resources in Glen Canyon National Recreation Area

Glen Canyon National Recreation Area (NRA) contains a diverse suite of culturally and historically significant archaeological sites that are threatened by erosion and changing land cover dynamics. The National Park Service (NPS) is tasked with monitoring, studying, and preserving these archeological sites, many of which...

Principal Investigator

Darcy Gray

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2018 summer median Land Surface Temperature (LST) derived from Landsat 8 Raw Scenes using Google Earth Engine. A section of Asheville is displayed. Red indicates areas with higher LST, and blue represents lower LST. Visualizing which communities are most vulnerable to urban heat allows the Asheville Urban Forestry Commission to make decisions about tree planting and preservation. Displayed over the LST are US census parcels outlines, available from http://us-city.census.okfn.org/dataset/parcels.  Keywords: urban heat, land surface temperature, landsat, census data

Asheville, North Carolina has had a population growth of approximately 10 percent over the past decade, while the city’s tree canopy cover has simultaneously decreased by 6.4 percent. A well-known benefit of urban tree cover is the mitigation of the...