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"description": "El Niño is characterized by unusually warm ocean temperatures in the eastern equatorial Pacific. The warmer water associated with El Niño displaces colder water in the upper layer of the ocean causing an increase in sea surface height because of thermal expansion.
This visualization, created using a sea surface height anomaly product produced by AVISO, shows sea surface height anomalies (SSHA) from January 1, 2015 to January 22, 2016. The maps have been processed to highlight the interannual signal of SSH, i.e., the mean signal, seasonal signal, and the trend have been removed. Red and orange shades indicate high sea surface heights relative to the reference state, while blue and green shades indicate sea surface heights lower than the reference state. Neutral conditions appear yellow.
After five consecutive months with sea surface temperatures 0.5 degrees Celsius above the long-term mean, NOAA issued an El Niño Advisory to declare the arrival of the phenomenon. A statement issued by the NOAA Climate Prediction Center on March 10, 2016, states that \"A transition to ENSO-neutral is likely during late Northern Hemisphere spring or early summer 2016, with close to a 50 percent chance for La Niña conditions to develop by the fall.”",
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"title": "For More Information",
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"description": "See [http://www.aviso.altimetry.fr/en/data/products/sea-surface-height-products/global.html](http://www.aviso.altimetry.fr/en/data/products/sea-surface-height-products/global.html)",
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{
"role": "Visualizer",
"people": [
{
"name": "Marit Jentoft-Nilsen",
"employer": "Global Science and Technology, Inc."
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"HDTV",
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"url": "https://svs.gsfc.nasa.gov/31232/",
"page_type": "Hyperwall Visual",
"title": "Sea Surface Height Anomaly, 2022-2024",
"description": "Animation of Sea Surface Height Anomaly in the Pacific starting January 1, 2022. || nrt_global_allsat_phy_l4_20240207_print.jpg (1024x576) [184.6 KB] || nrt_global_allsat_phy_l4_20240207_searchweb.png (320x180) [63.1 KB] || nrt_global_allsat_phy_l4_20240207_thm.png (80x40) [13.1 KB] || nrt_global_allsat_phy_l4_20220101-20240207_1080p30.mp4 (1920x1080) [35.8 MB] || nrt_global_allsat_phy_l4_20220101-20240207_1080p30.webm (1920x1080) [3.1 MB] || nrt_global_allsat_phy_l4 (3840x2160) [0 Item(s)] || nrt_global_allsat_phy_l4_20220101-20240207_2160p30.mp4 (3840x2160) [91.4 MB] || nrt_global_allsat_phy_l4_20240207.tif (3840x2160) [4.2 MB] || nrt_global_allsat_phy_l4_2022-2024.hwshow [133 bytes] || ",
"release_date": "2024-02-26T00:00:00-05:00",
"update_date": "2025-02-02T00:43:22.230948-05:00",
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{
"id": 30756,
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"page_type": "Hyperwall Visual",
"title": "Sea Surface Height Anomaly",
"description": "Sea Surface Height Anomaly during the 2015-2016 El Niño || aviso_ssha_20160101_print.jpg (1024x574) [113.0 KB] || aviso_ssha_20160101_searchweb.png (320x180) [54.8 KB] || aviso_ssha_20160101_thm.png (80x40) [4.8 KB] || aviso_ssha_2015-2016_1080p.mp4 (1920x1080) [20.8 MB] || aviso_ssha_2015-2016_720p.mp4 (1280x720) [13.5 MB] || aviso_ssha_2015-2016_720p.webm (1280x720) [6.0 MB] || aviso_ssha_20160101.tif (4104x2304) [4.9 MB] || aviso_ssha_2015-2016_2304p.mp4 (4096x2304) [18.2 MB] || ",
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"update_date": "2025-02-03T00:45:34.213030-05:00",
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