October 21, 2019
This animation depicts the the GOES-16 Advanced Baseline Imager (ABI) Fire Temperature product overlaid on the NOAA GOES-R GeoColor product for the Saddleridge California region from 10:31am -12:26pm PDT on October 11th, 2019. The red area shows the Saddleridge fire, and the white plume blowing out over the Pacific Ocean is smoke. This product was developed with support from the NASA Disasters Program at the request of the U.S. Forest Service and National Predictive Services. Satellite fire detections such as these are used to initialize fires in weather models that provide information about smoke impact and fire behavior to governments and disaster response agencies. Presently, the only fire detections used in numerical weather prediction models come from sensors on low Earth orbiting satellites, such as the MODIS and VIIRS sensors. These sensors provide very high spatial resolution, but only provide detections a few times per day. The Advanced Baseline Imager (ABI) on the GOES-R Series provides fire detections every 5 minutes over the United States, which will provide a greater chance of capturing fires that can be missed due to cloud cover or thick smoke.
October 21, 2019
The International Charter has been activated by UNOOSA/UN-SPIDER on behalf of the Department of Civil Protection of Cameroon for floods. For additional information on this activation please visit the Charter website. https://disasterscharter.org/web/guest/activations/-/article/flood-flash... The UMD Global Flood Monitoring System (http://flood.umd.edu) has generated these streamflow and inundation maps for the region.
September 6, 2019
The Visible Infrared Imaging Radiometer Suite (VIIRS) on the Suomi NPP satellite captured this nighttime composite image as the storm approached the coast at 3:42 a.m. Eastern Time (07:42 UTC) on September 5, 2019. Credit: NASA Earth Observatory After devastating the Bahamas and grazing Florida and Georgia, Hurricane Dorian rebounded and raked the coast of South Carolina with strong winds, heavy rains, and a storm surge. Wind, falling trees, and flooding damaged power infrastructure in coastal areas of the southeast U.S. The Visible Infrared Imaging Radiometer Suite (VIIRS) on the NASA/NOAA Suomi National Polar-orbiting Partnership (Suomi NPP) satellite captured this nighttime composite image as the storm approached the coast at 3:42 a.m. Eastern Time (07:42 UTC) on September 5, 2019. At the time, Dorian packed maximum sustained winds of 115 miles (185 kilometers) per hour and was moving north at 8 miles per hour. The VIIRS sensor observed thick cloud bands circulating around Dorian’s large eye, the part of the storm with mostly calm weather and the lowest atmospheric pressure. Hurricane eyes average about 20 miles (32 kilometers); the National Hurricane Center reported Dorian’s eye had a diameter of 50 miles (80 kilometers) around the time this image was acquired. Thinner clouds—part of the storm’s higher-level outflow—extended well inland across Georgia, South Carolina, and North Carolina.
September 6, 2019
Powerful Category 5 Hurricane Dorian struck the northern parts of the Bahamas on Sunday, September 1. Dorian first pummeled the Abaco Islands before stalling and battering Grand Bahama Island more than 40 hours with heavy rain and catastrophic storm surge. The National Oceanic and Atmospheric Administration’s (NOAA) GOES East satellite provided rapid, highly detailed imaging so that forecasters would have critical information about the storm’s movement. In the evening hours of September 2, the European Space Agency’s Sentinel-1A satellite also passed over the Bahamas, with a synthetic aperture radar (SAR) system capable of imaging the land surface through all but the most intense of Dorian’s rainfall bands to afford a view of what was occurring on the ground. The data was then processed by the Advanced Rapid Imaging and Analysis (ARIA) team at NASA’s Jet Propulsion Laboratory in collaboration with the European Space Agency, the California Institute of Technology and the Earth Observatory of Singapore. View fullscreen on the NASA Disasters Mapping Portal This interactive map from the NASA Disasters Mapping Portal displays a SAR-derived flood proxy map (FPM) for September 2nd, 2019 overlaid on GOES East imagery from the same time as the Sentinel-1A overpass. By moving the spyglass you can view flooded regions, which are shown in blue. The yellow box indicates the extent of the SAR data collected. With the help of Sentinel-1A, NASA scientists derived products to help identify the storm’s impacts on parts of the Bahamian island chain. These included a false-color composite from the Alaska Satellite Facility, the NASA Distributed Active Archive Center responsible for distributing SAR data. View fullscreen on the NASA Disasters Mapping Portal
September 5, 2019
A damage assessment map derived from satellite data shows conditions on one island in the Bahamas on Sept. 2. Red and yellow areas are likely the most damaged. Credit: NASA-JPL, Caltech, Earth Observatory of Singapore. Copyright contains modified Copernicus Sentinel data (2019), processed by ESA Versión en español NASA has created and provided to emergency response organizations a detailed damage assessment map of the Bahamas based on satellite data after Hurricane Dorian hit the islands earlier this week. For over a week, a response team from NASA’s Earth Science Disasters Program has worked to create maps of impacts and potential impacts from the storm and make them available to decision makers. The new damage assessment map used satellite data from the European Union’s Sentinel-1 Copernicus instrument to identify areas (shown in red and yellow) that were likely most affected by the storm’s Category 5 winds and storm surge. The map was created by the Advanced Rapid Imaging and Analysis (ARIA) team at NASA’s Jet Propulsion Laboratory in collaboration with the European Space Agency, the California Institute of Technology and the Earth Observatory of Singapore.
September 4, 2019
Video of GPM Satellite observes Hurricane Dorian over the Bahamas The NASA / JAXA Global Precipitation Measurement (GPM) Core Observatory flew over Hurricane Dorian on September 1st (5:22pm ET / 21:22 UTC) as the storm was directly over Abaco Island in The Bahamas. The satellite captured data on rainfall rates within the storm as it flew over using its Dual-frequency Precipitation Radar (DPR) and GPM Microwave Imager (GMI). In this animation the multi-satellite GPM IMERG product is shown first to illustrate rainfall rates prior to the overpass. When the camera zooms in data from the DPR is shown, revealing the structure and intensity of precipitation within the eye of the storm. At the time of this overpass Dorian was a category 5 hurricane with maximum sustained winds of 185 mph (295 km/h) and gusts over 200 mph.
September 4, 2019
A new view of Hurricane Dorian shows the layers of the storm, as seen by an experimental NASA weather satellite that's the size of a cereal box. TEMPEST-D reveals rain bands in four layers of the storm as Hurricane Dorian approaches Florida on Sept. 3, 2019. The multiple vertical layers show where the strongest convective "storms" within the hurricane are pushing high into the atmosphere, with pink, red and yellow corresponding to the areas of heaviest rainfall.
September 3, 2019
NASA's ARIA team used satellite data acquired on Sept. 2, 2019, to map flooding in the Bahamas in the wake of Hurricane Dorian. Credits: NASA/JPL-Caltech, ESA While many NASA missions are tracking Hurricane Dorian as the storm makes its way toward the United States, some researchers are looking at what Dorian has already left behind. The Advanced Rapid Imaging and Analysis (ARIA) team at NASA's Jet Propulsion Laboratory in Pasadena, California, used synthetic aperture radar data from the European Space Agency's (ESA's) Copernicus Sentinel-1 satellites to produce this flood map of the Bahamas. The light blue color indicates areas that were likely flooded when the data were acquired on Sept. 2, 2019. In particular, the map shows flooding in and around Marsh Harbour in the Abaco Islands. The map covers an area of about 109 miles by 106 miles (176 kilometers by 170 kilometers) shown by the large red polygon. Each pixel measures about 32 yards (30 meters) across. Authorities and responders can use flood maps like this one as guidance to identify areas that are likely experiencing flooding; the map may be less reliable over urban or vegetated areas. NASA works to leverage the power of our views of Earth from space and research aircraft to assist communities around the world as they plan for — and recover from — a wide range of disasters, from earthquakes to wildfires and severe weather events like hurricanes. NASA’s Disasters Program, part of the Earth Science Division in the Science Mission Directorate, draws together expertise from across the agency when disaster strikes to provide information products for emergency responders.
August 30, 2019
As Hurricane Dorian slowly approaches Florida’s Atlantic coast, NASA personnel have engaged with federal, state and local emergency responders in preparation for landfall as soon as Labor Day. A team of NASA disaster coordinators from the Earth Science Division’s Disasters Program has been activated to work with emergency agencies to determine what NASA information assets derived from satellite data can be provided to help decision makers direct resources and help communities likely to be affected by the storm. NASA has already created a map of Florida showing current soil moisture conditions to help scientists and response agencies predict the impact of heavy rainfall from Hurricane Dorian on flooding and runoff across the state. The map uses data from the NASA-NOAA Suomi NPP satellite. This and other data products are made available from the program’s mapping portal.
August 30, 2019
NASA data shows that in many parts of the state the soil is already saturated with moisture - a condition that could lead to increased flooding as Hurricane Dorian heads for a potential landfall in central Florida. Analyzing soil moisture conditions in advance of an approaching weather system helps researchers and disasters response agencies anticipate the impact of heavy rainfall and identify regions which are more likely to experience runoff and flooding. Using a land surface modeling system which incorporates near real-time satellite observations, NASA developed soil moisture maps for the region. This interactive slider allows comparison in SPoRT-LIS soil moisture between the near-surface layer on the left (0 – 10cm) and the deeper layer on the right (0 – 2m) on Sunday, August 25, 2019. Relative soil moisture is reflected by the colors shown, ranging from gray (0%) to red (100%). 0% represents the wilting point of soil moisture, which means that vegetation can no longer extract water from the ground. 100% indicates complete saturation, which means that the soil can no longer hold any more water. Click the layers icon in the upper right corner to view the full colorbar and legend.