Displaying 81 - 90 of 124
NDWI-processed composite image from Landsat 8 OLI data of the Lower Illinois River Valley and surrounding landscapes from summer 2021. Shades of pale yellow indicate dry vegetation and dark teal represents open water, while brighter turquois values depict wet vegetation. Areas of high NDWI values are demonstrative of high presence of wet vegetation and are of interest to the Great Rivers Land Trust in identifying areas of interest for wetland conservation.

Inundation Mapping of the Lower Illinois River Valley Using Synthetic Aperture Radar and Optical Satellite Imagery for Wetland Conservation and Restoration Prioritization Efforts 

Topic
DEVELOP
Capacity Building
Ecological Conservation
Lower Illinois River Valley Ecological Forecasting (Summer 2022) Team: Vanessa Machuca (Project Lead), Dana Myers, Hannah Rigdon, Christiana Saldana Summary: The Lower Illinois River Valley...
Median June composite of daily evapotranspiration from ECOSTRESS before the start of the Bootleg Fire on July 6th, 2021. Evapotranspiration is shown in millimeters per day across Klamath and Lake counties in Oregon, with dark blue indicating areas with higher evapotranspiration and light tan indicating lower evapotranspiration. Evapotranspiration is an indicator of vegetation moisture and can aid wildfire modeling by locating areas undergoing water-stress and susceptible to fire.

Integrating ECOSTRESS to Map and Analyze Vegetation Moisture for Wildfire Modeling 

Topic
DEVELOP
Wildfires
Capacity Building
Oregon Wildfires (Summer 2022) Team: Brenna Hatch (Project Lead), Kenya Creer, Jennifer Sobolewski, Nicole Roberts Summary: Wildfire season in the western USA is starting earlier...
The image displays NDVI calculated over the Guadalupe Mountain Range in Western Texas captured May 2020 by Landsat 8 OLI. Areas shaded green indicate tree canopy while yellow and red areas indicate arid landscapes. NDVI was used to visualize vegetation health and inform the National Park Service’s future management initiatives.

Identifying Vegetation Trends and Atmospheric Stressors in the Guadalupe Mountains and Carlsbad Caverns National Parks 

Topic
DEVELOP
Capacity Building
Ecological Conservation
Delaware Basin Ecological Forecasting (Summer 2022) Team: Jack Mezger (Project Lead), Mark Bossinger, Gillian McNamara, Quinn Heiser Summary: The Guadalupe Mountains and Carlsbad Caverns National...
Enhanced Wetland Classification of the Slave River Delta, NWT, Canada using Landsat 8 OLI imagery from June through August 2021.  Most of the colors represent different categories of wetland.  Many of the darker green areas represent areas where wetlands have transitioned to dryer forests or shrubs in recent decades.

Mapping Long-Term Changes in the Hydroecology of the Slave River Delta Using NASA Earth Observations 

Topic
DEVELOP
Capacity Building
Water Resources
Great Slave Lake Water Resources (Summer 2022) Team: Yuhe Chang (Project Lead), Virgil Alfred, Ethan McIntosh, Catherine Shea Summary: Indigenous communities around the Great Slave...
Top layer: NDTI processed imagery of Lake Champlain derived from Landsat 8 TOA data (5/1/21 - 9/30/21). Bright orange and red represent areas of greater turbidity, which often corresponds to algal presence, whilst dark areas indicate low turbidity. Bottom layer: Slope imagery from SRTM (last updated 11/2018) of the Lake Champlain Watershed. Yellow shows areas with higher slopes, which have a greater risk of phosphorus runoff, while blue shows areas with a lesser slope.

Using NASA Earth Observations to Identify Spatial and Seasonal Trends of Harmful Algal Events in Lake Champlain 

Topic
DEVELOP
Capacity Building
Water Resources
Lake Champlain Water Resources (Summer 2022) Team: Brianne Kendall (Project Lead), Laramie Plott, Ian Turner, Aaron Carr Summary: Lake Champlain provides clean drinking water for...
This image of the Chesapeake Bay is derived from NASA Landsat 7 ETM+ and Landsat 8 OLI imagery. It represents median Normalized Difference Turbidity Index (NDTI) turbidity levels from January 2020 through June 2022. Yellow and orange areas indicate higher turbidity levels. This imagery can be used to determine areas of the bay in which turbidity poses a threat to water quality.

Characterization of Sediment Dynamics for Enhanced Water Quality Monitoring in the Chesapeake Bay 

Topic
DEVELOP
Capacity Building
Water Resources
Chesapeake Bay Water Resources (Summer 2022) Team: Katherine Hahn, Julia Atayi, Julia Portmann, Abigail Sgan Summary: An increase in total suspended sediment (TSS) concentrations and...
Photo of man on stage gesturing toward a wall of video screens
Applied Sciences

AGU Meeting 2022

By
Aries Keck
Median daily evapotranspiration (ET) from September 2021 to May 2022 calculated from ISS ECOSTRESS data. The image covers the agricultural fields adjacent to the Maipo River, Chile and depicts water stress. The color scale ranges from red (low ET) to blue (high ET), with higher ET observed over irrigated agricultural fields. ET is used for estimating crop irrigation requirements. This data will inform irrigation management practices and help alleviate water scarcity within the area. ​

Assessing Drought and Fire Conditions, Trends, and Susceptibility to Inform State Mitigation Efforts and Bolster Monitoring Protocol in North Central Idaho 

Topic
DEVELOP
Wildfires
Capacity Building
IDAHO WILDFIRES (Summer 2022) Team: Ford Freyberg (Project Lead), Carson Schuetze, Jessica Hiatt, Brenner Burkholder Summary: Escalating severity and frequency of drought and wildfire call...
Normalized difference vegetation index (NDVI) generated from an October 5, 2021 Landsat 8 OLI image of Yellowstone National Park. The dark green shades represent areas with healthy vegetation, yellow depicts bare ground, and intermediate shades reflect a gradient of vegetation productivity. Areas with NDVI values that vary throughout the year are indicative of deciduous vegetation and can help resource managers understand changes in aspen stand extent.​

Assessing Change in Aspen Extent in Northern Yellowstone National Park

Topic
DEVELOP
Capacity Building
Ecological Conservation
Yellowstone Ecological Forecasting II (Fall 2022) Team: Vanessa Bailey (Project Lead), Ryan Brinton, Samantha Snowden, Aliza White Summary: Aspen stands in Yellowstone National Park have...
satellite image showing the edges of a water reservoir
Capacity Building
Ecological Conservation
Water Resources

Tenacious Plant Threatens Birds in Lake Thurmond

By
Marissa Kunerth, Applied Sciences Writer

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