{ "id": 2938, "url": "https://svs.gsfc.nasa.gov/2938/", "page_type": "Visualization", "title": "NDVI Anomalies Show Areas of Likely Drought in the Western US (Southwest view)", "description": "Satellite data can gauge the health of plants, which is a good indicator of drought. Satellite imagery shows changes in vegetation between 1999 and 2003. The Normalized Difference Vegetation Index (NDVI) measures how dense and green plant leaves are, which suggests overall vegetative health. The NDVI images are also useful as a measure of drought when compared to 'normal' plant health. NASA scientists calculate average NDVI values for an area to find out what is normal at a particular time of year. This data was measured by the vegetation instrument on Europe's SPOT satellite provided by DigitalGlobe/SPOT, under agreement with the U.S. Department of Agriculture Foreign Agricultural Service (USDA/FAS).In 2002, drought had settled across the Midwest. Large dark brown sections of eastern Colorado show where vegetation was less lush and healthy than normal.This version of the visualization focuses on the southwestern United States. || ", "release_date": "2004-05-13T12:00:00-04:00", "update_date": "2023-05-03T13:56:43.418386-04:00", "main_image": { "id": 519921, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_augOnlySouthwest.0010.jpg", "filename": "ndvi_augOnlySouthwest.0010.jpg", "media_type": "Image", "alt_text": "Push into south western United States showing August NDVI data from 1999 to 2003 (with dates)", "width": 720, "height": 486, "pixels": 349920 }, "main_video": { "id": 519922, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwest_NTSC.webmhd.webm", "filename": "ndvi_southwest_NTSC.webmhd.webm", "media_type": "Movie", "alt_text": "Push into south western United States showing August NDVI data from 1999 to 2003 (with dates)", "width": 960, "height": 540, "pixels": 518400 }, "main_credits": { "Visualizations by": [ { "name": "Greg Shirah", "employer": "NASA/GSFC" } ] }, "progress": "Complete", "media_groups": [ { "id": 360527, "url": "https://svs.gsfc.nasa.gov/2938/#media_group_360527", "widget": "Basic text with HTML", "title": "", "caption": "", "description": "Satellite data can gauge the health of plants, which is a good indicator of drought. Satellite imagery shows changes in vegetation between 1999 and 2003. The Normalized Difference Vegetation Index (NDVI) measures how dense and green plant leaves are, which suggests overall vegetative health. The NDVI images are also useful as a measure of drought when compared to 'normal' plant health. NASA scientists calculate average NDVI values for an area to find out what is normal at a particular time of year. This data was measured by the vegetation instrument on Europe's SPOT satellite provided by DigitalGlobe/SPOT, under agreement with the U.S. Department of Agriculture Foreign Agricultural Service (USDA/FAS).

In 2002, drought had settled across the Midwest. Large dark brown sections of eastern Colorado show where vegetation was less lush and healthy than normal.

This version of the visualization focuses on the southwestern United States.", "items": [], "extra_data": {} }, { "id": 360528, "url": "https://svs.gsfc.nasa.gov/2938/#media_group_360528", "widget": "Video player", "title": "", "caption": "", "description": "Push into south western United States showing August NDVI data from 1999 to 2003 (with dates)", "items": [ { "id": 365118, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519921, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_augOnlySouthwest.0010.jpg", "filename": "ndvi_augOnlySouthwest.0010.jpg", "media_type": "Image", "alt_text": "Push into south western United States showing August NDVI data from 1999 to 2003 (with dates)", "width": 720, "height": 486, "pixels": 349920 } }, { "id": 365116, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519919, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwest_640x480_pre.jpg", "filename": "ndvi_southwest_640x480_pre.jpg", "media_type": "Image", "alt_text": "Push into south western United States showing August NDVI data from 1999 to 2003 (with dates)", "width": 320, "height": 240, "pixels": 76800 } }, { "id": 365119, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519922, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwest_NTSC.webmhd.webm", "filename": "ndvi_southwest_NTSC.webmhd.webm", "media_type": "Movie", "alt_text": "Push into south western United States showing August NDVI data from 1999 to 2003 (with dates)", "width": 960, "height": 540, "pixels": 518400 } }, { "id": 365112, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519915, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/frames/720x486_4x3_29.97p/date/", "filename": "date", "media_type": "Frames", "alt_text": "Push into south western United States showing August NDVI data from 1999 to 2003 (with dates)", "width": 720, "height": 486, "pixels": 349920 } }, { "id": 365113, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519916, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwest_640x480.mpg", "filename": "ndvi_southwest_640x480.mpg", "media_type": "Movie", "alt_text": "Push into south western United States showing August NDVI data from 1999 to 2003 (with dates)", "width": 640, "height": 480, "pixels": 307200 } }, { "id": 365114, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519917, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwest_NTSC.m2v", "filename": "ndvi_southwest_NTSC.m2v", "media_type": "Movie", "alt_text": "Push into south western United States showing August NDVI data from 1999 to 2003 (with dates)", "width": 720, "height": 480, "pixels": 345600 } }, { "id": 365117, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519920, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/a002938_ndvi_southwest_NTSC.mp4", "filename": "a002938_ndvi_southwest_NTSC.mp4", "media_type": "Movie", "alt_text": "Push into south western United States showing August NDVI data from 1999 to 2003 (with dates)", "width": 640, "height": 480, "pixels": 307200 } }, { "id": 365115, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519918, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwest_320x240.mpg", "filename": "ndvi_southwest_320x240.mpg", "media_type": "Movie", "alt_text": "Push into south western United States showing August NDVI data from 1999 to 2003 (with dates)", "width": 320, "height": 240, "pixels": 76800 } } ], "extra_data": {} }, { "id": 360529, "url": "https://svs.gsfc.nasa.gov/2938/#media_group_360529", "widget": "Video player", "title": "", "caption": "", "description": "Push into south western United States showing August NDVI data from 1999 to 2003 (without dates)", "items": [ { "id": 365126, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519929, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_augOnlySouthwestNoDate.0010.jpg", "filename": "ndvi_augOnlySouthwestNoDate.0010.jpg", "media_type": "Image", "alt_text": "Push into south western United States showing August NDVI data from 1999 to 2003 (without dates)", "width": 720, "height": 486, "pixels": 349920 } }, { "id": 365124, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519927, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwest_noDate_640x480_pre.jpg", "filename": "ndvi_southwest_noDate_640x480_pre.jpg", "media_type": "Image", "alt_text": "Push into south western United States showing August NDVI data from 1999 to 2003 (without dates)", "width": 320, "height": 240, "pixels": 76800 } }, { "id": 365127, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519930, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwest_noDate_NTSC.webmhd.webm", "filename": "ndvi_southwest_noDate_NTSC.webmhd.webm", "media_type": "Movie", "alt_text": "Push into south western United States showing August NDVI data from 1999 to 2003 (without dates)", "width": 960, "height": 540, "pixels": 518400 } }, { "id": 365120, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519923, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/frames/720x486_4x3_29.97p/nodate/", "filename": "nodate", "media_type": "Frames", "alt_text": "Push into south western United States showing August NDVI data from 1999 to 2003 (without dates)", "width": 720, "height": 486, "pixels": 349920 } }, { "id": 365121, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519924, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwest_noDate_640x480.mpg", "filename": "ndvi_southwest_noDate_640x480.mpg", "media_type": "Movie", "alt_text": "Push into south western United States showing August NDVI data from 1999 to 2003 (without dates)", "width": 640, "height": 480, "pixels": 307200 } }, { "id": 365122, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519925, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwest_noDate_NTSC.m2v", "filename": "ndvi_southwest_noDate_NTSC.m2v", "media_type": "Movie", "alt_text": "Push into south western United States showing August NDVI data from 1999 to 2003 (without dates)", "width": 720, "height": 480, "pixels": 345600 } }, { "id": 365125, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519928, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/a002938_ndvi_southwest_noDate_NTSC.mp4", "filename": "a002938_ndvi_southwest_noDate_NTSC.mp4", "media_type": "Movie", "alt_text": "Push into south western United States showing August NDVI data from 1999 to 2003 (without dates)", "width": 640, "height": 480, "pixels": 307200 } }, { "id": 365123, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519926, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwest_noDate_320x240.mpg", "filename": "ndvi_southwest_noDate_320x240.mpg", "media_type": "Movie", "alt_text": "Push into south western United States showing August NDVI data from 1999 to 2003 (without dates)", "width": 320, "height": 240, "pixels": 76800 } } ], "extra_data": {} }, { "id": 360530, "url": "https://svs.gsfc.nasa.gov/2938/#media_group_360530", "widget": "Single image", "title": "", "caption": "", "description": " NDVI data from Aug 10, 1999 showing greener (wetter) than normal conditions", "items": [ { "id": 365132, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519935, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwestSTILL.1999Aug10.jpg", "filename": "ndvi_southwestSTILL.1999Aug10.jpg", "media_type": "Image", "alt_text": " NDVI data from Aug 10, 1999 showing greener (wetter) than normal conditions", "width": 2560, "height": 1920, "pixels": 4915200 } }, { "id": 365129, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519932, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwestSTILL.1999Aug10_web.jpg", "filename": "ndvi_southwestSTILL.1999Aug10_web.jpg", "media_type": "Image", "alt_text": " NDVI data from Aug 10, 1999 showing greener (wetter) than normal conditions", "width": 320, "height": 240, "pixels": 76800 } }, { "id": 365130, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519933, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwestSTILL.1999Aug10_thm.png", "filename": "ndvi_southwestSTILL.1999Aug10_thm.png", "media_type": "Image", "alt_text": " NDVI data from Aug 10, 1999 showing greener (wetter) than normal conditions", "width": 80, "height": 40, "pixels": 3200 } }, { "id": 365131, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519934, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwestSTILL.1999Aug10_web_searchweb.jpg", "filename": "ndvi_southwestSTILL.1999Aug10_web_searchweb.jpg", "media_type": "Image", "alt_text": " NDVI data from Aug 10, 1999 showing greener (wetter) than normal conditions", "width": 320, "height": 180, "pixels": 57600 } }, { "id": 365128, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519931, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwestSTILL.1999Aug10.tif", "filename": "ndvi_southwestSTILL.1999Aug10.tif", "media_type": "Image", "alt_text": " NDVI data from Aug 10, 1999 showing greener (wetter) than normal conditions", "width": 2560, "height": 1920, "pixels": 4915200 } } ], "extra_data": {} }, { "id": 360531, "url": "https://svs.gsfc.nasa.gov/2938/#media_group_360531", "widget": "Single image", "title": "", "caption": "", "description": " NDVI data from Aug 10, 2000 showing some brown (drought) areas in New Mexico", "items": [ { "id": 365135, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519938, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwestSTILL.2000Aug10.jpg", "filename": "ndvi_southwestSTILL.2000Aug10.jpg", "media_type": "Image", "alt_text": " NDVI data from Aug 10, 2000 showing some brown (drought) areas in New Mexico", "width": 2560, "height": 1920, "pixels": 4915200 } }, { "id": 365134, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519937, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwestSTILL.2000Aug10_web.jpg", "filename": "ndvi_southwestSTILL.2000Aug10_web.jpg", "media_type": "Image", "alt_text": " NDVI data from Aug 10, 2000 showing some brown (drought) areas in New Mexico", "width": 320, "height": 240, "pixels": 76800 } }, { "id": 365133, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519936, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwestSTILL.2000Aug10.tif", "filename": "ndvi_southwestSTILL.2000Aug10.tif", "media_type": "Image", "alt_text": " NDVI data from Aug 10, 2000 showing some brown (drought) areas in New Mexico", "width": 2560, "height": 1920, "pixels": 4915200 } } ], "extra_data": {} }, { "id": 360532, "url": "https://svs.gsfc.nasa.gov/2938/#media_group_360532", "widget": "Single image", "title": "", "caption": "", "description": " NDVI data from Aug 10, 2001 showing some brown (drought) areas in Colorado", "items": [ { "id": 365138, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519941, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwestSTILL.2001Aug10.jpg", "filename": "ndvi_southwestSTILL.2001Aug10.jpg", "media_type": "Image", "alt_text": " NDVI data from Aug 10, 2001 showing some brown (drought) areas in Colorado", "width": 2560, "height": 1920, "pixels": 4915200 } }, { "id": 365137, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519940, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwestSTILL.2001Aug10_web.jpg", "filename": "ndvi_southwestSTILL.2001Aug10_web.jpg", "media_type": "Image", "alt_text": " NDVI data from Aug 10, 2001 showing some brown (drought) areas in Colorado", "width": 320, "height": 240, "pixels": 76800 } }, { "id": 365136, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519939, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwestSTILL.2001Aug10.tif", "filename": "ndvi_southwestSTILL.2001Aug10.tif", "media_type": "Image", "alt_text": " NDVI data from Aug 10, 2001 showing some brown (drought) areas in Colorado", "width": 2560, "height": 1920, "pixels": 4915200 } } ], "extra_data": {} }, { "id": 360533, "url": "https://svs.gsfc.nasa.gov/2938/#media_group_360533", "widget": "Single image", "title": "", "caption": "", "description": "NDVI data from Aug 10, 2002 showing widespread brown (drought) areas in Colorado and Arizona", "items": [ { "id": 365141, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519944, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwestSTILL.2002Aug10.jpg", "filename": "ndvi_southwestSTILL.2002Aug10.jpg", "media_type": "Image", "alt_text": "NDVI data from Aug 10, 2002 showing widespread brown (drought) areas in Colorado and Arizona", "width": 2560, "height": 1920, "pixels": 4915200 } }, { "id": 365140, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519943, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwestSTILL.2002Aug10_web.jpg", "filename": "ndvi_southwestSTILL.2002Aug10_web.jpg", "media_type": "Image", "alt_text": "NDVI data from Aug 10, 2002 showing widespread brown (drought) areas in Colorado and Arizona", "width": 320, "height": 240, "pixels": 76800 } }, { "id": 365139, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519942, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwestSTILL.2002Aug10.tif", "filename": "ndvi_southwestSTILL.2002Aug10.tif", "media_type": "Image", "alt_text": "NDVI data from Aug 10, 2002 showing widespread brown (drought) areas in Colorado and Arizona", "width": 2560, "height": 1920, "pixels": 4915200 } } ], "extra_data": {} }, { "id": 360534, "url": "https://svs.gsfc.nasa.gov/2938/#media_group_360534", "widget": "Single image", "title": "", "caption": "", "description": "NDVI data from Aug 10, 2003 showing widespread brown (drought) areas in Colorado and New Mexico and south eastern Arizona", "items": [ { "id": 365144, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519947, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwestSTILL.2003Aug10.jpg", "filename": "ndvi_southwestSTILL.2003Aug10.jpg", "media_type": "Image", "alt_text": "NDVI data from Aug 10, 2003 showing widespread brown (drought) areas in Colorado and New Mexico and south eastern Arizona", "width": 2560, "height": 1920, "pixels": 4915200 } }, { "id": 365143, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519946, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwestSTILL.2003Aug10_web.jpg", "filename": "ndvi_southwestSTILL.2003Aug10_web.jpg", "media_type": "Image", "alt_text": "NDVI data from Aug 10, 2003 showing widespread brown (drought) areas in Colorado and New Mexico and south eastern Arizona", "width": 320, "height": 240, "pixels": 76800 } }, { "id": 365142, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519945, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_southwestSTILL.2003Aug10.tif", "filename": "ndvi_southwestSTILL.2003Aug10.tif", "media_type": "Image", "alt_text": "NDVI data from Aug 10, 2003 showing widespread brown (drought) areas in Colorado and New Mexico and south eastern Arizona", "width": 2560, "height": 1920, "pixels": 4915200 } } ], "extra_data": {} }, { "id": 360535, "url": "https://svs.gsfc.nasa.gov/2938/#media_group_360535", "widget": "Single image", "title": "", "caption": "", "description": "Color Table showing below normal as red, brown, orange, and yellow and above normal as greens and purple", "items": [ { "id": 365145, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 519948, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002938/ndvi_anom_cbar.jpg", "filename": "ndvi_anom_cbar.jpg", "media_type": "Image", "alt_text": "Color Table showing below normal as red, brown, orange, and yellow and above normal as greens and purple", "width": 319, "height": 108, "pixels": 34452 } } ], "extra_data": {} } ], "studio": "svs", "funding_sources": [ "ESE Informal Education" ], "credits": [ { "role": "Animator", "people": [ { "name": "Greg Shirah", "employer": "NASA/GSFC" } ] }, { "role": "Scientist", "people": [ { "name": "Assaf Anyamba", "employer": "UMBC" } ] } ], "missions": [ "Terra" ], "series": [], "tapes": [], "papers": [], "datasets": [ { "name": "NDVI", "common_name": "", "platform": "SPOT-4", "sensor": "VGT-S10", "type": "Other", "organizations": [], "description": "", "credit": "", "url": "", "date_range": "1999/08/10, 2000/08/10, 2001/08/10, 2002/08/10, 2003/08/10" }, { "name": "Blue Marble: Next Generation", "common_name": "BMNG", "platform": "Terra and Aqua", "sensor": "MODIS", "type": "Other", "organizations": [], "description": "", "credit": "The Blue Marble data is courtesy of Reto Stockli (NASA/GSFC).", "url": "http://earthobservatory.nasa.gov/Newsroom/BlueMarble/", "date_range": "1/1/2004 - 12/31/2004" } ], "nasa_science_categories": [ "Earth" ], "keywords": [ "Agriculture", "Biosphere", "Drought", "Earth Science", "Ecological Dynamics", "For Educators", "Forestry", "Location", "NDVI", "photosynthesis", "Plant Growth", "Terrestrial Food", "Western United States" ], "recommended_pages": [], "related": [], "sources": [], "products": [], "newer_versions": [], "older_versions": [], "alternate_versions": [] }