Displaying 3721 - 3730 of 3734
Normalized difference vegetation index (NDVI) calculated based on a Landsat 8 composite of 2021 median reflectance. The image depicts soybean plantations in Mato Grosso, Brazil. NDVI can be used as an indicator of crop productivity and vegetation health. Shades of bright and dark orange indicate vegetated land surfaces, while dark purple areas highlight water surfaces or urban areas.

Measuring Soybean Yields in Northern Brazil During El Niño-Southern Oscillation Conditions to Evaluate Trends in Agricultural Production and Support Crop Forecasting, 1984 – 2023

Topic
DEVELOP
Capacity Building
Agriculture
Northern Brazil Agriculture (2024 Spring) Team: Devon V. Maloney (Project Lead), Manpreet K. Singh, Grayson Shanley Barr, Sofya Goncharenko Summary: As one of the largest...
Land use land cover map derived from Landsat 9 OLI-2 imagery. This image depicts land cover in southwest Rhode Island on May 22, 2023. Disturbed/barren areas are black, open water is dark blue, agricultural land is yellow, upland habitat is light green, woody wetlands are dark green, and non-woody wetlands are light blue. Land use land cover maps can assist land managers in prioritizing land acquisition for conservation efforts.

Methods for Monitoring Rhode Island Habitats: Contributing to a Framework for Targeted Conservation and Management

Topic
DEVELOP
Capacity Building
Ecological Conservation
rhode island ecological conservation (2024 Spring) Team: Natasha Crater (Project Lead), Joseph Barnes, Kristen Mecke, Nancy Nthiga Summary: Global avian population decline since the 1970s...
The mean of eight SMAP L4 Surface Soil Moisture images over Eastern Kentucky from July 24, 2022, just prior to a historic flooding event. The focal statistics tool was applied to the SMAP data to achieve a smooth effect. Dark turquoise represents higher soil moisture, while light turquoise represents lower soil moisture. Surface water is shown in pink.

Multi-Hazard Approach to Mapping Flood Susceptibility and Vulnerability in Kentucky

Topic
DEVELOP
Capacity Building
Disasters
Kentucky Disasters (2024 Spring) Team: Daniel Feinberg (Project Lead), Claire Beezley, Jason Reynolds, Jaydi Swanson Summary: Flooding is the most common and costly natural disaster...
Processed imagery from Landsat 8 OLI/TIRS from summer 2023, overlaid with 2019 data from the National Landcover Database. Teal polygons show woody and emergent wetlands; light purple visualizes relative percent impervious cover – which are barriers to wetland migration. Overlay highlights the interactions between natural processes and human activities shaping future wetland extent.

Mapping Wetland Change Across the Coastal Regions of Virginia to Identify Areas Most Susceptible to Wetland Loss and Most in Need of Wetland Protection Advocacy

Topic
DEVELOP
Capacity Building
Ecological Conservation
Coastal Virginia ecological conservation (2024 Spring) Team: Katherine Kivimaki (Project Lead), Brooklyn Appling, Sean Asbrand, Mitchell Johnson Summary: Wetlands provide many ecosystem services to coastal...
A calculated NDVI processed image from Landsat 8 OLI data collected on September 1st, 2023. Orange tones indicate NDVI values of 0.1 to 0.2, representing grassland and shrubland ecosystems. Precipitation and temperature variables determined ideal green-up timelines to calculate NDVI. The habitat suitability model used NDVI as a variable to determine potential Bufflegrass (Cenchrus ciliaris) location in Big Bend National Park.

Integrating Earth Observations into Invasive Species Managment Decisions in Big Bend National Park in Texas

Topic
DEVELOP
Capacity Building
Ecological Conservation
Big bend ecological conservation (2024 Spring) Team: Kait Lemon (Project Lead), Margaret Birks, Beck De Fazio, Chloe A Marini Summary: Located in Brewster County Texas...
Surface temperature calculated from Landsat 8 data. This image of the waters of Oahu, Hawaii was taken in September of 2022. Shades of blue denote areas of lower surface temperatures, while the shades of yellow to red indicate higher temperatures. These calculations provide resource managers data in making informed decisions for sustainable coastal fishpond management.

Utilizing NASA Earth Observations to Assess Thermal Stress Impacts on Coastal Hawaiian Fishponds

Topic
DEVELOP
Climate
Capacity Building
Hawai'i climate (2024 Spring) Team: Raz Wachtel (Project Lead), Danielle Sonobe, Mina Nada, Tyler Morgan Summary: Hawaiian fishponds (loko i’a), ancient aquaculture systems created over...
Land use land cover unsupervised classification derived from Landsat 9 OLI-2 TOA imagery acquired in spring 2023. The image shows the city of Lincoln, Nebraska. Lighter blue and greens show vegetation and agriculture, and darker blues show the urban area (left) invading the river (right). Heavily urbanized areas nearby rivers are at higher risk of flooding and are candidates for the Audubon Great Plains' environmental restoration and flood mitigation initiative.

Monitoring Heat and Assessing Heat Vulnerability to Identify Locations for Mitigation Efforts in Sarasota, Florida

Topic
DEVELOP
Climate
Capacity Building
Sarasota Climate (2024 Spring) Team: William Hadley (Project Lead), Casmir Brown, Catherine Gallagher, Theresia Phoa Summary: The coastal county of Sarasota, Florida, is located within...
Summer 2013 - 2023 composite land surface temperature (LST) processed imagery from Landsat 8 TIRS showing Stockton, CA. Shades of dark blue, light blue, and green indicate lower temperatures, while yellow, orange, and red areas show hotter, less vegetated land. Areas with high LST are often significantly developed and prone to poor air quality because of transportation corridors, leading to interest from the community to provide solutions for cooling strategies.

Assessing Urban Heat Island Distribution and its Intersections with Air Quality to Understand Converging Vulnerabilities

Topic
DEVELOP
Capacity Building
Health & Air Quality
San Joaquin Valley Health & Air Quality II (2024 Spring) Team: Shea Rousseau (Project Lead), Gabriela Colombo, Carlo M. Gomez, Tyler C. Padua Summary: The...
Turbidity calculated from Landsat 9 OLI-2 data in Newport Bay on January 17th, 2023. Shades of green indicate higher turbidity and shades of blue indicate lower turbidity. Areas with high turbidity can prohibit eelgrass growth, therefore it’s of interest to identify these areas. Turbidity calculations overlayed on a false color composite from Sentinel-2 MSI on November 9th, 2023.

Using NASA Earth Observations to Monitor Seagrass Extent and Water Quality Parameters in Southern California

Topic
DEVELOP
Capacity Building
Water Resources
Southern California water resources (2024 Spring) Team: Katya Beener (Project Lead), Gwen Greco, Nelly Perez, Caroline Baumann Summary: Eelgrass (Zostera marina) is a species of...
Modified normalized water difference index (mNDWI) composite processed from Landsat 8 OLI data. This composite was created from 16 images of the southern cusp of Cape Hatteras National Seashore captured between February 2023 and February 2024. The yellow-orange shapes represent barrier islands, surrounded by shades of blue that indicate water. Processing images by calculating mNDWI is useful in delineating shoreline change over time.

Delineating Shoreline and Mapping Change along the Cape Hatteras National Seashore for Coastline Management and Transportation Corridor Adaptation Strategies

Topic
DEVELOP
Capacity Building
Ecological Conservation
Cape hatteras ecological conservation (2024 Spring) Team: Ella Haugen (Project Lead), Alyson Bergamini, Julian Alcantara Summary: The National Park Service at Cape Hatteras National Seashore...

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