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Home> Outreach Materials > Posters > El Niño Poster image Descriptions |
| Poster Description |
| NASA’s Earth Observing System (EOS) satellites provide a wide range of interdisciplinary science data products useful
to scientists for observing and analyzing environmental events, and predicting their effects. The data allow disaster and
resource managers to monitor and react to hazards. The images featured on this poster represent a sample of the many
EOS Data and Information System (EOSDIS) data products useful for studying climate, weather-related events, and their
effects. EOSDIS data products and services are available from the Distributed Active Archive Center (DAAC) Alliance. Back to poster |
| TOPEX-POSEIDON images |
| TOPEX/POSEIDON sea surface height anomalies show higher (warmer) than normal water occurring in the Equatorial Pacific off South America during El Niño (left) compared to lower (cooler) than normal water during La Niña (right), with opposite conditions in the Western Pacific. Back to poster |
| TOVS MSU data |
TOVS MSU Tropospheric Temperature Anomalies over 1979-2003 for the Equatorial Pacific region (top) and Global Ocean (bottom) show temperatures higher than normal during El Niño and lower than normal during La Niña. Back to poster |
| CERES images |
CERES monthly total-sky shortwave flux data display different patterns of high reflectivity (indicating clouds) during El Niño (TRMM data from January 1998) and La Niña (Terra data from March 2001) events.
TRMM and Terra CERES monthly total-sky shortwave fluxes show higher overall reflectivity (greater cloudiness) during La Niña (March 2001 Terra data) compared to El Niño (January 1998 TRMM data). Regional cloud patterns also differ, with the western Pacific cloudier during El Niño. Back to poster |
| TRMM images |
| TRMM monthly rainfall data show areas of intense rainfall in the eastern Equatorial Pacific during El Niño (January 1998) that migrate westward during a La Niña (December 1998) event. Back to poster |
| TOMS images |
| TOMS aerosol data show smoke from El Niño drought-facilitated fires in North America (May 15, 1998) and dust from La Niña drought-impacted areas of Africa (February 26, 2000). Back to poster |
| AVHRR Images |
| Pathfinder AVHRR NDVI maps of Africa from El Niņo (January 1998) and La Niņa (December 1998) periods reveal regional shifts in vegetation cover, with three highlighted areas each showing lusher vegetation during La Niņa. Back to poster |
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