Principal Investigator

Hayley Pippin

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Colored Dissolved Organic Matter (CDOM) derived using Landsat 8 OLI data on January 28th, 2019 off the coast of Belize City. Darker shades of blue indicate higher levels of CDOM, while lighter blue shades show lower levels of CDOM in the coastal and inland waters. Very high levels of CDOM can inhibit photosynthesis; thus, the visualization of CDOM allows coastal management to identify regions where reef health and water quality are at risk.  Keywords: Landsat 8, CDOM, Belize

The Mesoamerican reef is a biodiverse ecosystem that stretches more than 600 miles along four Central American coasts and is the longest barrier reef in the western hemisphere. The national economies of Belize and Honduras heavily depend on the commercial...

Principal Investigator

Lilian Yang

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Developing Annual, Seasonal, and Monthly Temperature Indices over the Northeast United States to Represent Recent Temperature Trends using NASA and NOAA Datasets

Since 1977, every year has been in the top ten warmest years on record when first ranked, reflecting the upward progression of annual global temperatures. However, some years within this time frame, such as 2012, are significantly cooler than surrounding years like 2010 or 2013...

Principal Investigator

Caroline Jahn

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Development of a Snowmelt Monitoring Tool Using NASA MODIS and NOAA Climate Data Records to Aid Wildfire Managers in Alaska

Alaska is warming twice as fast as the rest of the nation due to changes in the climate, causing shorter winters, thawing permafrost, and rapidly receding glaciers. All of these weather changes are lengthening wildfire seasons and increasing the number of wildfires experienced by the...

Principal Investigator

Haley Ritger

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Early Detection of Bark Beetle Outbreaks in the Southeastern United States Using Earth Observations

Since 2015, bark beetle infestations have increased in the southeastern United States, increasing the potential for devastating wildfires. Bark beetles infestations begin in small spots, usually by attacking a weakened or stressed focal tree. Beetles then use aggregation pheromones to increase the breeding population in...

Principal Investigator

Anastasia Kunz

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Using a Landsat 8 OLI image from September 2018, a chlorophyll-a index ((B2 - B4)/ B3) was applied over several lakes in a section of Rocky Mountain National Park. The background is NDVI combined with hillshade derived from SRTM. The dark blue within the lakes may represent higher concentrations of chlorophyll-a, a proxy for algal productivity. Utilizing remote sensing data will allow researchers to efficiently monitor water quality in lakes throughout the mountains in Colorado.

Alpine lakes in Rocky Mountain National Park (RMNP) serve as an important habitat and water source for wildlife and contribute to the overall aesthetic value of the park. However, since the 1960s, alpine lakes within RMNP have experienced intensified algal productivity as a...

Principal Investigator

Tyler Hennessee

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Derived from Aqua and Terra MODIS data, this image shows the difference between the Normalized Difference Snow Index (NDSI) in March 2017 compared to the median NDSI in March from 2000 to 2018 surrounding Lake Ontario. Light blue areas received less snow than usual, while blue areas received more. Dark blue represents bodies of water. By increasing awareness of variables that contribute to flooding (like snow cover), communities can be better prepared for flood events.

From late January through the beginning of May 2017, an extraordinary amount of precipitation fell in the Lake Ontario watershed. By late April, large swaths of the Greater Toronto Area (GTA), including numerous lakefront properties, beaches, and public recreation facilities...

Principal Investigator

Nicole Pepper

Invasive species threaten the ecological integrity of a region. Such threats have further implications that can affect regional economies and, in some cases, human health. Organizations including the National Parks Service (NPS) and the United States Geological Survey (USGS) are dedicated to the...
Principal Investigator

Vanesa Martín

Imagen
These are wetlands in southwestern Guatemala. The top image (August 2018) shows the area while it is not flooded, with purple representing water. The bottom image (September 2017) shows flooding in dark purple to blue. The top half is an NDWI image made with Landsat 8 OLI data. The bottom half is an RGB composite using Sentinel-1 C-band SAR. SAR is a useful tool for partner agencies to map flooding since it can penetrate atmospheric conditions, unlike optical imagery.

Central America is one of the world’s most vulnerable regions to natural disasters, including landslides and precipitation-driven flooding. In an effort to support disaster management and emergency response planning, this project developed a methodology that employed NASA Earth observations to...

Principal Investigator

Nicole Pepper

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This is a processed Landsat 8 OLI image from January 2019 displaying Normalized Difference Vegetation Index (NDVI) values of Moloka’i, Hawaii. Bright purple colors indicate areas of healthy vegetation and blues represent less productive vegetation, bare ground, and water. NDVI is one of the many indices used to quantify forest health and resulting coastal water turbidity.

threat of invasive species has impacted fragile forests across the globe; such impacts can be particularly damaging on island ecosystems where a loss in vegetation can lead to increased runoff. In 2017, a fungal pathogen outbreak of Puccinia psidii impacted...

Principal Investigator

Jillian LaRoe

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Employing NASA Earth Observations to Model Availability of Ephemeral Water Sources and Vegetation Change in Support of a USGS Feasibility Assessment and Management Strategy of Bison

The United States Geological Survey (USGS) and National Park Service (NPS) are concerned by the increasing Kaibab Plateau bison population on the North Rim of Grand Canyon National Park (GRCA). Currently, within the park's boundaries, the bison have no predators and hunting is prohibited, resulting...