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Disasters

Disasters Team Highlights NASA Resources at International Emergency Managers Conference

By
Timothy "Seph" Allen, NASA Disasters

NASA Disasters Program Overview One Pager

Topic
Disasters
Resource Type
Print Materials
NASADisasters-OnePager-v3_2023.pdf
Disasters

Detecting Oil Thickness to Aid Oil Spill Response

By
Gabriella Lewis, NASA Disasters

Monitoring Coastal and Estuarine Water Quality Using Remote Sensing and In Situ Data

Mehta, A.; McCartney, S. (2021). Monitoring Coastal and Estuarine Water Quality Using Remote Sensing and In Situ Data.

GOES West satellite image of the Jan. 15, 2022, Tonga eruption.
Disasters

Tonga Eruption Sent Ripples Through Earth’s Ionosphere

By
Jacob Reed, NASA Disasters
,
Normalized Difference Moisture Index (NDMI) processed 2021 Landsat 8 OLI imagery over land and Sentinel-2 MSI over ocean, ranging from yellow (low) to blue (high), for Hilo, Hawaii. Overlayed with four-day rainfall accumulation cells in blue acquired during Hurricane Lane (Aug 22-25, 2018) from CHIRPS Daily. NDMI monitors water content of leaves and is useful for classifying land cover. Impervious surfaces and areas that have received excessive historical rainfall are susceptible to future flood events.

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An NDWI waterbody mask derived from Landsat-8 OLI cloud-masked imagery from March-May 2019-2021 is shown in blue at 10-meter resolution over Mexico, Belize, and Guatemala. The ALOS-PALSAR-2 fine-beam L-band false color composite includes Refined Lee speckle filtered HV, HH, HH/HV bands. Darker and brighter green hues represent to low and high backscatter, respectively. Differentiating between open water, like the Hondo River, from vegetated inundation is important when distinguishing inundation by land cove

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Headshot of Alyssa K. Whitcraft

Alyssa K. Whitcraft, PhD

Affiliation
University of Maryland, College Park
Program Role
Associate Director & Program Manager of NASA Harvest, Agriculture
Headshot of Chris Justice

Professor Chris Justice, PhD

Affiliation
University of Maryland, College Park
Program Role
Chief Scientist of NASA HARVEST, Agriculture
Tornado banner GOES-R
Disasters

Earth Observations SMASH Limits in Understanding Severe Storms

By
Sierra Steele, NASA Disasters Science Writer Intern