{ "count": 10, "next": null, "previous": null, "results": [ { "id": 5325, "url": "https://svs.gsfc.nasa.gov/5325/", "result_type": "Visualization", "release_date": "2024-06-19T00:00:00-04:00", "title": "Tropspheric NO2 Column over Eastern United States, 2015-2023", "description": "Tropspheric NO2 column over Eastern United States, 2015-2023 || NO2_NE_2015-2023_1080p30.00001_print.jpg (1024x576) [158.6 KB] || NO2_NE_2015-2023_1080p30.00001_searchweb.png (320x180) [79.5 KB] || NO2_NE_2015-2023_1080p30.00001_thm.png (80x40) [5.9 KB] || NO2_NE_2015-2023_1080p30.mp4 (1920x1080) [13.1 MB] || This animation is an update to svs.gsfc.nasa.gov/4810, extending the visualization of OMI nitrogen dioxide data through 2023. || ", "hits": 116 }, { "id": 5070, "url": "https://svs.gsfc.nasa.gov/5070/", "result_type": "Visualization", "release_date": "2023-02-06T00:00:00-05:00", "title": "Nitrogen Dioxide Over the United States, 2005-2022", "description": "NO2 over the United States as measured by OMI, with labels || NO2_US_2005-2022.399_print.jpg (1024x576) [171.6 KB] || NO2_US_2005-2022.399_searchweb.png (320x180) [80.6 KB] || NO2_US_2005-2022.399_thm.png (80x40) [5.9 KB] || w_dates (3840x2160) [0 Item(s)] || NO2_US_2005-2022_2160p30.mp4 (3840x2160) [20.0 MB] || NO2_US_2005-2022_2160p30.webm (3840x2160) [2.7 MB] || ", "hits": 226 }, { "id": 14056, "url": "https://svs.gsfc.nasa.gov/14056/", "result_type": "Produced Video", "release_date": "2022-03-24T11:00:00-04:00", "title": "NASA Tracks COVID-19’s Atmospheric Fingerprint", "description": "Universal Production Music: The Mysterious Staircase by Brice Davoli [SACEM], Suspended in Time by Brice Davoli [SACEM]Stock Footage: Pond5Complete transcript available. || 14056_Still.jpg (1920x1080) [939.6 KB] || 14056_Still_searchweb.png (320x180) [61.8 KB] || 14056_Still_thm.png (80x40) [5.4 KB] || 14056_Atmo.mov (1920x1080) [3.2 GB] || 14056_Atmo.mp4 (1920x1080) [233.2 MB] || 14056_Twitter_Atmo.mp4 (1280x720) [60.2 MB] || 14056_Twitter_Atmo.webm (1280x720) [24.8 MB] || 14056_atmo.en_US.srt [4.7 KB] || 14056_atmo.en_US.vtt [4.4 KB] || ", "hits": 46 }, { "id": 4959, "url": "https://svs.gsfc.nasa.gov/4959/", "result_type": "Visualization", "release_date": "2021-12-13T00:00:00-05:00", "title": "Reduction in Tropospheric NOx and Ozone Corresponding to Worldwide COVID-19 Lockdowns", "description": "When the world went into lockdown to slow the spread of COVID-19, air pollution emissions started to rapidly decrease leaving a global atmospheric fingerprint detected by a team of scientists at NASA’s Jet Propulsion Laboratory using satellite measurements. These traces provided an unexpected window into what low-emissions world could look like, thus providing a means for identifying effective environmental policies. While many countries in the last few decades have implemented environmental policies to reduce human health risk from air pollution by controlling emissions, the impacts of those policies have not always been clear. The global lockdowns in response to COVID-19 represent a well-observed “scenario-of-opportunity” that allows us to assess how atmospheric emission and composition responds to reduced human activity. COVID-19 lockdowns effectively showed how reducing NOx emissions affects the global atmosphere. Its identifying signature shows up as in the atmosphere’s altered ability to produce harmful ozone pollution and ozone’s reduced influence on Earth’s heat balance that affects climate. These effects are not uniform across the world and depend on the location and season of the emission reductions.The results of this research indicate that in order to design effective environmental policies which benefit both air quality and climate, decision-makers need to carefully consider the complex relationships between emissions and atmospheric composition. || ", "hits": 55 }, { "id": 13871, "url": "https://svs.gsfc.nasa.gov/13871/", "result_type": "Produced Video", "release_date": "2021-06-09T13:30:00-04:00", "title": "NASA Finds Local Lockdowns Brought Global Ozone Reductions", "description": "This video can be freely shared and downloaded. While the video in its entirety can be shared without permission, some individual imagery is provided by pond5.com and is obtained through permission and may not be excised or remixed in other products. Specific details on stock footage may be found here. For more information on NASA’s media guidelines, visit https://www.nasa.gov/multimedia/guidelines/index.html.Music Credit:Universal Production Music: Waiting For Results - Adam John Salkeld [PRS], Neil Pollard [PRS]Complete transcript available. || 13871_Still_Image.jpg (1920x1080) [626.3 KB] || 13871_Still_Image_searchweb.png (320x180) [77.2 KB] || 13871_Still_Image_thm.png (80x40) [7.0 KB] || 13871_COVIDNOx.mov (1920x1080) [1.9 GB] || 13871_COVIDNOx.mp4 (1920x1080) [199.0 MB] || 13871_COVIDNOx.webm (1920x1080) [15.2 MB] || COVIDNOX.en_US.srt [2.1 KB] || COVIDNOX.en_US.vtt [2.1 KB] || ", "hits": 28 }, { "id": 4912, "url": "https://svs.gsfc.nasa.gov/4912/", "result_type": "Visualization", "release_date": "2021-06-09T12:30:00-04:00", "title": "Global Tropospheric Ozone Response to Worldwide COVID-19 Lockdowns", "description": "Free tropospheric ozone anomaly at 500 hPa || covid_ozone_z9_500hPa.00900_print.jpg (1024x576) [141.7 KB] || covid_ozone_z9_500hPa.00900_searchweb.png (320x180) [74.2 KB] || covid_ozone_z9_500hPa.00900_thm.png (80x40) [6.6 KB] || covid_ozone_z9_500hPa.mp4 (1920x1080) [87.1 MB] || covid_ozone_z9_500hPa.webm (1920x1080) [5.4 MB] || covid_ozone_z9_500hPa.mp4.hwshow [214 bytes] || ", "hits": 39 }, { "id": 4835, "url": "https://svs.gsfc.nasa.gov/4835/", "result_type": "Visualization", "release_date": "2020-06-18T00:00:00-04:00", "title": "NO2 Decline Related to Restrictions Due to COVID-19 in South America", "description": "On June 1, the World Health Organization noted that Central and South American countries have become “the intense zones” for COVID-19 transmission. The Ozone Monitoring Instrument (OMI) on board NASA’s Aura satellite provides data that indicate that restrictions on human activity have led to about a 36% decrease in NO2 levels in Rio de Janeiro, Brazil, relative to previous years. Other large cities in South America show similar decreases in NO2: 36% in Santiago, Chile; 35% in São Paolo, Brazil; and 40% in Buenos Aires, Argentina. One notable exception is in Lima, Peru, showing a 69% decrease. The large decrease may partly be associated with natural variations in weather that can, for instance, disperse air pollution more quickly. Additional analysis is required to determine the amount of the decrease of NO2 in Lima that is associated with a decrease in human activity. A notable increase in NO2 occurred in northern South America, which is likely associated with increased agricultural burning in 2020 relative to previous years. || ", "hits": 39 }, { "id": 31142, "url": "https://svs.gsfc.nasa.gov/31142/", "result_type": "Hyperwall Visual", "release_date": "2020-05-18T00:00:00-04:00", "title": "COVID-19: NASA Satellite Data Show Drop in Air Pollution Over U.S.", "description": "Tropospheric NO2 Column, March 15-April 15 2015-2019 average vs. 2020, USA regions || 3-regions_1080p.00001_print.jpg (1024x576) [141.7 KB] || 3-regions_1080p.00001_searchweb.png (320x180) [62.9 KB] || 3-regions_1080p.00001_thm.png (80x40) [5.2 KB] || 3-regions_1080p.mp4 (1920x1080) [1.9 MB] || 3-regions_720p.mp4 (1280x720) [1.0 MB] || 3-regions_1080p.webm (1920x1080) [2.3 MB] || 3-regions_2160p.mp4 (3840x2160) [5.6 MB] || ", "hits": 118 }, { "id": 4810, "url": "https://svs.gsfc.nasa.gov/4810/", "result_type": "Visualization", "release_date": "2020-04-24T00:00:00-04:00", "title": "Reductions in Pollution Associated with Decreased Fossil Fuel Use Resulting from COVID-19 Mitigation", "description": "Over the past several weeks, the United States has seen significant reductions in air pollution over its major metropolitan areas. Similar reductions in air pollution have been observed in other regions of the world. || Tropospheric NO2 Column, Animated GIF || cropped_NO2_2019_2020.gif (848x862) [54.4 MB] || cropped_NO2_2019_2020_print.jpg (1024x1040) [318.2 KB] || cropped_NO2_2019_2020_searchweb.png (320x180) [102.2 KB] || ", "hits": 95 }, { "id": 12350, "url": "https://svs.gsfc.nasa.gov/12350/", "result_type": "Produced Video", "release_date": "2016-08-29T11:00:00-04:00", "title": "ATom Mission interview clips", "description": "The ATom mission aboard NASA's DC-8 flying laboratory is sampling world-wide in one of the most extensive surveys of the atmosphere to date, measuring over 200 gases as well as airborne particles. The science team is particularly interested in methane, tropospheric ozone and black carbon particles, which have strong effects on climate and which all have both human and natural origins.Below are interviews with four scientists participating in the research flights:* Donald Blake, UC Irvine* Róisín Commane, Harvard University* Tom Ryerson, NOAA* Jack Dibbs, University of New HampshireFollow along with all eight of our #EarthExpeditions here: http://www.nasa.gov/earthexpeditions || ", "hits": 14 } ] }