Latest News and Updates

September 12, 2017
ISS Georeferenced Digital Camera Images from Hispaniola flooding 2017
Click here to view the full image collection and download  high quality georeferenced images. This collection of digital camera images was taken by astronauts onboard the International Space Station on September 12th, 2017, then manually georeferenced by members of the Earth Science and Remote Sensing Unit at NASA Johnson Space Center.

 

September 12, 2017
ISS Georeferenced Digital Camera Images of Bermuda Flooding from Hurricane Irma 2017
Click here to view the full image collection and download  high quality georeferenced images. This collection of digital camera images was taken by astronauts onboard the International Space Station on September 12th, 2017, then manually georeferenced by members of the Earth Science and Remote Sensing Unit at NASA Johnson Space Center.

 

September 12, 2017
ISS Georeferenced Digital Camera Images from Florida flooding 2017
Click here to view the full image collection and download  high quality georeferenced images. This collection of digital camera images was taken by astronauts onboard the International Space Station on Septmber 12th, 2017, then manually georeferenced by members of the Earth Science and Remote Sensing Unit at NASA Johnson Space Center.

 

September 14, 2017
Landslide maps for the 2017 Mexico Earthquake
The global Landslide Hazard Assessment for Situational Awareness (LHASA) model is developed to provide situational awareness of landslide hazards for a wide range of users. Precipitation is a common trigger of landslides. The GPMIntegrated Multi-satellitE Retrievals for GPM (IMERG) data shows recent precipitation, updated every thirty minutes. A LHASA landslide “nowcast” is created by comparing GPM data from the last seven days to the long-term precipitation record provided by the Tropical Rainfall Measuring Mission (TRMM) Multi-satellite Precipitation Analysis (TMPA). Because IMERG data is only available starting in 2014, the record of historical rainfall was established by TMPA, comparing 2001-present. The TMPA rainfall probability distributions were then compared to that of IMERG and the rainfall thresholds were adjusted so that the IMERG data more closely mapped to those of the TMPA archive. The past 7 days of rainfall are considered, with each day is weighted according to their date before present, with the last twenty-four hours having the most impact.

 

September 12, 2017
ARIA Damage Proxy Map of Southern Florida from Hurricane Irma
The Advanced Rapid Imaging and Analysis (ARIA) team at NASA's Jet Propulsion Laboratory in Pasadena, California, created this Damage Proxy Map (DPM) depicting areas of Southwestern Florida, including Key West and Naples, that are likely damaged as a result of Hurricane Irma (Category 4 at landfall in Florida), shown by red and yellow pixels. The map is derived from synthetic aperture radar (SAR) images from the European Space Agency's (ESA) Sentinel-1 satellite, taken before (August 29, 2017) and after (September 10, 2017) Hurricane Irma made landfall. The map covers an area of 53 miles x 118 miles (85 km x 190 km). Each pixel measures about 33 yards x 33 yards (30 m x 30 m). The color variation from yellow to red indicates increasingly more significant ground surface change. Preliminary validation was done by comparing to optical satellite imagery by the DigitalGlobe. This damage proxy map should be used as guidance to identify damaged areas, and may be less reliable over vegetated areas. Sentinel-1 data were accessed through the Copernicus Open Access Hub. Contains modified Copernicus Sentinel data 2017. 

 

September 12, 2017
GPM IMERG precipitation totals from hurricane Irma 9/5/17 - 9/12/17
Hurricane Irma dropped extremely heavy rain at times during it’s trek from near the Cape Verdi Islands through the northern Leeward islands, Cuba and the southeastern United States. Over 16 inches (406 mm) of rain was reported in Guantanamo, in the easternmost province of Cuba, as the category five hurricane battered the country. Almost 16 inches (406 mm) of rain was also reported at Fort Pierce on the eastern side of Florida. Charleston, South Carolina reported 6 inches (152.4 mm) of rain in 24 hour. This heavy rainfall plus storm surge flooding caused the worst flooding in Charleston since hurricane Hugo hit the state in 1989. Today, hurricane Irma is a remnant low over the Tennessee valley. The National Hurricane Center (NHC) stopped issuing advisories on Irma on September 11, 2017 at 11 PM EDT (0300 UTC). Video of NASA Adds up Hurricane Irma's Trek of Heavy Rainfall   NASA's Integrated Multi-satellitE Retrievals for GPM (IMERG) data were used to estimate the total amount of rain that Hurricane Irma dropped from September 5 to early September 12, 2017. During that period Irma dropped heavy rain along it’s path from the Leeward Islands until dissipation over the southeastern United States. Rainfall totals were often greater than 6 inches (152.5 mm) around Irma. The greatest IMERG rainfall estimates were indicated by more than 20 inches (512 mm) over Cuba.

 

September 11, 2017
GFMS flood detection map from hurricane Irma on 9/11/17
Inland flooding from Irma currently over much of Florida and into southeast Georgia; expanding further north on Tuesday  

 

August 31, 2017
ISS Georeferenced Digital Camera Images from Houston Flooding 2017
Click here to view the full image collection and download  high quality georeferenced images. This collection of digital camera images was taken by astronauts onboard the International Space Station on August 31st, 2017, then manually georeferenced by members of the Earth Science and Remote Sensing Unit at NASA Johnson Space Center

 

September 8, 2017
89 GHz RGBs from the GPM constellation of the three hurricanes affecting the Atlantic Basin this morning.  Approximate times for passes over the respective hurricanes are noted in the image.
Below are 89 GHz RGBs (composited) of the three hurricanes affecting the Atlantic basin this morning.  Notice a decent eye structure is observable in all of the storms, including Hurricane Katia in the SW Gulf of Mexico.  This was noted in the 4 AM CDT discussion about the hurricane from the National Hurricane Center (NHC), “Enhanced BD-curve infrared imagery and a GPM microwave composite image indicate improved banding over the western portion of the circulation and the earlier ragged eye presentation has become much more distinct.”  SPoRT helped with the implementation of the passive microwave data into the AWIPS platform at the NHC several years ago, which has aided forecasters there with the diagnosis and analysis of these systems. For the latest, best up-to-date information regarding the hurricanes, please refer to the NHC website. 89 GHz RGBs from the GPM constellation of the three hurricanes affecting the Atlantic Basin this morning.  Approximate times for passes over the respective hurricanes are noted in the image.

 

Pages