Earth Imaging Journal: Remote Sensing, Satellite Images, Satellite Imagery
Breaking News
Esri Ireland partners with Bluesky to enhance its digital mapping offering in Ireland
Esri Ireland, the market leader in Geographic Information Systems...
GSSI Updates to StructureScan™ Mini XT GPR Kit and Palm XT Antenna
GSSI, the world’s leading manufacturer of ground penetrating radar...
MGISS Helps Northumbrian Water Mitigate Risk from Trees
Liverpool, UK - Northumbrian Water using satellite positioning and...
Kratos Introduces OpenSpace™ Virtual Network Functions for Earth Observation Satellite Missions
SAN DIEGO - Kratos Defense & Security Solutions, Inc....
Hivemapper Builds Global Decentralized Mapping Network, Offers Cash for Aerial and Ground-Level 3D Video
BURLINGAME, Calif.-Hivemapper, the company building an intelligent, global decentralized...

NASA’s IMERG storm-total rain accumulation over parts of Grand Bahama and Abaco islands exceeded 24 inches, according to NASA satellite-based estimates. The graphic also shows the distance that tropical-storm force (39 mph) winds extend from Hurricane Dorian’s low-pressure center, as reported by the National Hurricane Center. The symbols H and TS represent a hurricane of various Saffir-Simpson categories or a tropical storm, respectively. (Credit: NASA Goddard)

In the early hours of Sept. 3, 2019, Hurricane Dorian had been stationary over the island of Grand Bahama for 18 hours, most of the time as a category 5 hurricane. Storm-total rain accumulation over parts of Grand Bahama and Abaco Islands exceeded 24 inches, according to NASA satellite-based estimates.

These rain estimates come from the NASA IMERG algorithm, which combines observations from a fleet of satellites, in near-real-time, to provide global estimates of precipitation every 30 minutes. The storm-total rainfall at a particular location varies with the forward speed of the hurricane, with the size of the hurricane’s wind field, and with how vigorous the updrafts are inside the hurricane’s eyewall.

IMERG, or the Integrated Multi-satellitE Retrievals for GPM (IMERG) data product, is generated by NASA’s Precipitation Processing System every half hour with a 6-hour latency from the time of data acquisition. It’s produced using data from the satellites in the GPM or Global Precipitation Measurement mission constellation of satellites, and is calibrated with measurements from the GPM Core Observatory as well as rain gauge networks around the world.

 

 

Comments are closed.