jeudi 21 novembre 2013
A Portrait of Global Winds
Nov. 21, 2013
High-resolution global atmospheric modeling provides a unique tool to study the role of weather within Earth’s climate system. NASA’s Goddard Earth Observing System Model (GEOS-5) is capable of simulating worldwide weather at resolutions as fine as 3.5 kilometers.
This visualization shows global winds from a GEOS-5 simulation using 10-kilometer resolution. Surface winds (0 to 40 meters/second) are shown in white and trace features including Atlantic and Pacific cyclones. Upper-level winds (250 hectopascals) are colored by speed (0 to 175 meters/second), with red indicating faster.
This simulation ran on the Discover supercomputer at the NASA Center for Climate Simulation. The complete 2-year “Nature Run” simulation—a computer model representation of Earth's atmosphere from basic inputs including observed sea-surface temperatures and surface emissions from biomass burning, volcanoes and anthropogenic sources—produces its own unique weather patterns including precipitation, aerosols and hurricanes. A follow-on Nature Run is simulating Earth’s atmosphere at 7 kilometers for 2 years and 3.5 kilometers for 3 months.
NASA will showcase more than 30 of the agency's exciting computational achievements at SC13, the international supercomputing conference, Nov. 17-22, 2013 in Denver: http://www.nasa.gov/ames/nasa-experts-showcase-science-technology-at-supercomputing-conference/
NASA Center for Climate Simulation: https://www.nccs.nasa.gov/
Image, Text, Credits: William Putman/NASA Goddard Space Flight Center.
Publié par Orbiter.ch à 10:14