{ "count": 17, "next": null, "previous": null, "results": [ { "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": 198 }, { "id": 13592, "url": "https://svs.gsfc.nasa.gov/13592/", "result_type": "Produced Video", "release_date": "2020-04-23T12:00:00-04:00", "title": "Guiding Farmers with NASA Satellites", "description": "Agriculture in Pakistan is dependent on irrigation from the Indus River, but over the years, these freshwater resources have become scarce. Today, it is one of the world’s most depleted basins. To tackle this, farmers are attempting to predict and track freshwater resources with the help of NASA satellites and cell phones. || ", "hits": 31 }, { "id": 40410, "url": "https://svs.gsfc.nasa.gov/gallery/earthat-night-imagery/", "result_type": "Gallery", "release_date": "2020-02-14T00:00:00-05:00", "title": "Earth at Night Imagery", "description": "Dazzling photographs and images from space of our planet’s nightlights have captivated public attention for decades. In such images, patterns are immediately seen based on the presence or absence of light: a distinct coastline, bodies of water recognizable by their dark silhouettes, and the faint tendrils of roads and highways emanating from the brilliant blobs of light that are our modern, well-lit cities.\n\nFor nearly 25 years, satellite images of Earth at night have served as a fundamental research tool, while also stoking public curiosity. These images paint an expansive and revealing picture, showing how natural phenomena light up the darkness and how humans have illuminated and shaped the planet in profound ways since the invention of the light bulb 140 years ago.", "hits": 1038 }, { "id": 31097, "url": "https://svs.gsfc.nasa.gov/31097/", "result_type": "Hyperwall Visual", "release_date": "2020-01-31T00:00:00-05:00", "title": "Nighttime Panorama—Pakistan’s Indus River Valley", "description": "Nighttime Panorama—Pakistan’s Indus River Valley || Page21_IndiaPakistan_Hyperwall_5760x3240_19.2x10.8_print.jpg (1024x576) [91.3 KB] || Page21_IndiaPakistan_Hyperwall_5760x3240_19.2x10.8.png (5760x3240) [11.4 MB] || Page21_IndiaPakistan_Hyperwall_5760x3240_19.2x10.8_searchweb.png (320x180) [76.4 KB] || Page21_IndiaPakistan_Hyperwall_5760x3240_19.2x10.8_thm.png (80x40) [5.4 KB] || nighttime-panoramapakistans-indus-river-valley.hwshow [370 bytes] || ", "hits": 91 }, { "id": 40388, "url": "https://svs.gsfc.nasa.gov/gallery/nasaearth-science/", "result_type": "Gallery", "release_date": "2019-09-13T10:53:37-04:00", "title": "NASA Earth Science", "description": "NASA’s Earth Science Division (ESD) missions help us to understand our planet’s interconnected systems, from a global scale down to minute processes. Working in concert with a satellite network of international partners, ESD can measure precipitation around the world, and it can employ its own constellation of small satellites to look into the eye of a hurricane. ESD technology can track dust storms across continents and mosquito habitats across cities.\n\nFor more information:\nhttps://science.nasa.gov/earth-science", "hits": 228 }, { "id": 12647, "url": "https://svs.gsfc.nasa.gov/12647/", "result_type": "Produced Video", "release_date": "2017-06-26T12:00:00-04:00", "title": "Trading Water", "description": "Crops sold in the international market trade away they water they're grown with. || usa_west.1974_1024x576.jpg (1024x576) [83.6 KB] || usa_west.1974_thm.png (80x40) [5.6 KB] || usa_west.1974_searchweb.png (320x180) [66.6 KB] || usa_west.1974.tif (1920x1080) [4.0 MB] || ", "hits": 21 }, { "id": 40302, "url": "https://svs.gsfc.nasa.gov/gallery/svsyoutube-candidates/", "result_type": "Gallery", "release_date": "2016-06-03T00:00:00-04:00", "title": "SVS YouTube Candidates", "description": "These are the proposed visualization candidates to be included in the SVS YouTube Channel.", "hits": 141 }, { "id": 30745, "url": "https://svs.gsfc.nasa.gov/30745/", "result_type": "Hyperwall Visual", "release_date": "2016-01-14T00:00:00-05:00", "title": "All Stirred Up in the Arabian Sea", "description": "Ocean bloom off of Oman, Pakistan, and India. || V2015355084000.ArabianSea_hw_print.jpg (1024x626) [245.8 KB] || V2015355084000.ArabianSea_hw_searchweb.png (320x180) [128.3 KB] || V2015355084000.ArabianSea_hw_thm.png (80x40) [16.8 KB] || V2015355084000.ArabianSea_hw.tif (3881x2374) [12.4 MB] || stirred_up_arabian_sea_30745.key [2.9 MB] || stirred_up_arabian_sea_30745.pptx [312.5 KB] || clouds-of-dust-and-clouds-of-phytoplankton-at-the-arabian-sea.hwshow [341 bytes] || ", "hits": 23 }, { "id": 11885, "url": "https://svs.gsfc.nasa.gov/11885/", "result_type": "Produced Video", "release_date": "2015-06-02T11:00:00-04:00", "title": "The Particle Puzzle", "description": "How will clouds and aerosols shape Earth’s future climate? || c-1280.jpg (1280x720) [109.4 KB] || c-1024.jpg (1024x576) [84.6 KB] || c-1024_print.jpg (1024x576) [83.2 KB] || c-1024_searchweb.png (320x180) [64.9 KB] || ", "hits": 23 }, { "id": 11471, "url": "https://svs.gsfc.nasa.gov/11471/", "result_type": "Produced Video", "release_date": "2014-04-03T00:00:00-04:00", "title": "Wild, Wild Winds", "description": "Powerful winds whip around Earth, affecting the planet's weather and climate. Such winds make up the Northern Hemisphere’s polar and subtropical jet stream. Undulating in the sky miles above the surface, these rapidly moving air currents flow eastward like rivers in the atmosphere. The polar jet stream travels in the mid-latitudes while the subtropical jet stream passes near the tropics. Sometimes the jets converge or park above a region. In summer 2010, the polar jet stream shifted north and lingered for more than two months over Eurasia. A stationary high-pressure area developed as a result that disrupted the normal movement of weather systems. This contributed to extreme drought in Russia and devastating floods in Pakistan. Watch the video to see a NASA visualization that shows the motions of winds above Europe and Asia during these events. || ", "hits": 115 }, { "id": 4148, "url": "https://svs.gsfc.nasa.gov/4148/", "result_type": "Visualization", "release_date": "2014-02-25T00:00:00-05:00", "title": "The Polar Jet Stream Over Asia, 2010", "description": "Meandering around the planet like a rollicking roller coaster in the sky, the Northern Hemisphere's polar jet stream is a fast-moving belt of westerly winds that traverses the lower layers of the atmosphere. The jet is created by the convergence of cold air masses descending from the Arctic and rising warm air from the tropics. Deep troughs and steep ridges emerge as the denser cold air sinks and deflects warm air regions north, giving the jet stream its wavy appearance. This pattern propagates across the mid-latitudes of North America, Europe and Asia, as pockets of cold air sporadically creep down from the Arctic—creating contrasting waves and flows that accelerate eastward due to Earth's rotation. This visualization was adapted from The Polar Jet Stream (#3864) by special request, using weather and climate observations from NASA's MERRA data model from 2010 for the period of the floods in Russia and the droughts in Pakistan. || ", "hits": 64 }, { "id": 30039, "url": "https://svs.gsfc.nasa.gov/30039/", "result_type": "Hyperwall Visual", "release_date": "2013-03-28T00:00:00-04:00", "title": "2010 Indus Floods", "description": "Some blamed La Niña, while others faulted inadequate flood-prevention plans for the devastation left behind by the 2010 Pakistan Floods. In either case, the coming together of international partners allowed rapid humanitarian response efforts to take place. The importance of international partnership lies within the craftsmanship of the middle map, a mosaic of shared satellite data pieced together by UNITAR’s Operational Satellite Application Programme (UNOSAT). The map provides flood analysis based on a time series of satellite data recorded between July 28-September 16, 2010. With the support from several other partners, UNOSAT was able to provide emergency response maps to humanitarian communities during the floods. Often times, those assessing flood extent on land are unable to map an entire area before water levels change again. Satellites, however, offer a unique perspective from space and provide data across large geographic areas nearly every day. || ", "hits": 33 }, { "id": 10842, "url": "https://svs.gsfc.nasa.gov/10842/", "result_type": "Produced Video", "release_date": "2011-10-10T00:00:00-04:00", "title": "Earth Science Week 2011", "description": "This year's Earth Science Week theme is \"Our Ever-changing Earth.\" These short introductory videos are designed to give educators a brief tour of what resources NASA has to offer. For more information and resources, visit the Earth Science Week website.This page contains video segments with NASA scientists Gavin Schmidt, William Lau, and Waleed Abdalati. || ", "hits": 13 }, { "id": 10820, "url": "https://svs.gsfc.nasa.gov/10820/", "result_type": "Produced Video", "release_date": "2011-09-08T00:00:00-04:00", "title": "Deconstructing Eurasia's Wild Weather", "description": "Normally the jet stream in the Northern Hemisphere carries weather fronts over Russia in four or five days. But late in the summer of 2010 conditions were anything but normal. A large-scale, stagnant region of high pressure developed and lingered over western Russia for about a month. The rare weather pattern—known to meteorologists as an Omega blocking high—split the jet stream in two, causing winds to flow around the high, an area of descending warm air, in a horseshoe-shaped pattern similar to that of the Greek letter Omega (Ω). The high blocked the normal progression of weather fronts and produced droughts and unusually warm temperatures that fueled a rash of fires near Moscow. As Russia burned, the same blocking pattern kept a low-pressure area over northern Pakistan. The cool, rising air of the low generated torrential rainfall and destructive flooding in northern Pakistan when it clashed with warmer air from the high. In the visualization below, look for the warm air from the persistent high-pressure zone over Russia (shown in yellow and red) and the cooler air from the low-pressure zone (shown in blue) just north of Pakistan. || ", "hits": 43 }, { "id": 3850, "url": "https://svs.gsfc.nasa.gov/3850/", "result_type": "Visualization", "release_date": "2011-08-30T00:00:00-04:00", "title": "Extreme Russian Fires and Pakistan Floods Linked Meteorologically", "description": "In the summer of 2010, months of record-breaking drought and temperatures culminated with a rash of fires that ravaged western Russia for weeks. Temperatures in Moscow soared to an average of 104 °F (40 °C) during late July and early August — more than 18 °F (10 °C) above normal. Hundreds of fires broke out producing some $15 million in damages. The heat and smoke killed about 56,000 people, making the Russian wildfires fires one of the most lethal natural disasters of the year.Meanwhile, some 930 kilometers (1,500 miles) away, relentless rainfall was simultaneously pounding Pakistan and generating intense flooding. The Pakistan Meteorological Department reported nationwide rain totals 70 percent above normal in July and 102 percent above normal in August.New research conducted by William Lau, an atmospheric scientist at NASA's Goddard Space Flight Center in Greenbelt, Md., suggests the two seemingly disconnected events were actually closely linked.Under normal circumstances, the jet stream pushes weather fronts through Eurasia in four or five days, but something unusual happened in July of 2010. A large-scale, stagnant weather pattern — known as an Omega blocking event — slowed the Rossby wave over Russia and prevented the normal progression of weather systems from west to east.As a result, a large region of high-pressure formed over Russia trapping a hot, dry air mass over the area. As the high lingered, the land surface dried and the normal transfer of moisture from the soil to the atmosphere slowed. Precipitation ceased, vegetation dried out, and the region became a taiga tinderbox.Meanwhile, the blocking pattern created unusual downstream wind patterns over Pakistan. Areas of low pressure on the leading edge of the Rossby wave formed in response to the high, pulling cold, dry Siberian air into lower latitudes.This cold air from Siberia clashed with warm, moist air arriving over Pakistan from the Bay of Bengal as part of the monsoon. There's nothing unusual about moisture moving north over India toward the Himalayas. It's a normal part of the monsoon. However, in this case, the unusual wind patterns associated with the blocking high brought upper level air disturbances farther south than typical, which in effect helped shifted the entire monsoon system north and west.This brought heavy monsoon rains — centered over parts of India — squarely over the northern part of Pakistan, a region ill-prepared to handle large amounts of rain. || ", "hits": 36 }, { "id": 3797, "url": "https://svs.gsfc.nasa.gov/3797/", "result_type": "Visualization", "release_date": "2010-10-28T00:00:00-04:00", "title": "NASA Builds Global Precipitation Measurement (GPM)", "description": "The Global Precipitation Measurement, or GPM, mission will use an international constellation of satellites to study global rain, snow and ice to better understand our climate, weather, and hydrometeorological processes. One of the critical components of the Earth's hydrological cycle is precipitation. Rainfall is essential for providing the fresh water that sustains life. Water cycling and the future availability of fresh water resources are immense societal concerns that impact every nation on Earth. It affects virtually every environmental issue. Solid forms of precipitation, such as snow and ice, frequently create hazardous conditions during winter storms. Heavy snowfalls severely disrupt transportation networks and temporarily paralyze local economies. Snowfall is also beneficial to many, as it provides the major source of fresh water during arid summer months in many mountainous regions. In the atmosphere, the condensation of water vapor into rain, and then rain into ice, releases vast quantifies of heat. The heat energy drives the wind systems of Earth's atmosphere, and powers violent storms such as hurricanes. In many respects, precipitation is truly the centerpiece of our planet's hydrological cycle, and understanding it is crucial to unraveling many of the uncertainties about Earth's climate.We cannot understand the water and energy cycle or predict weather and climate without an accurate knowledge of the intensity and distribution of global precipitation. Measurement of various aspects of precipitation (e.g. distribution, amount, rates, and the associated heat release) represents one of the most challenging research problems in Earth science. Yet, accurate global precipitation measurements will benefit weather, climate, hydro-meteorological, and applications communities alike. The concept of Global Precipitation Measurement (GPM) is NASA's response to the need for accurate global precipitation measurement. || ", "hits": 13 }, { "id": 2174, "url": "https://svs.gsfc.nasa.gov/2174/", "result_type": "Visualization", "release_date": "2001-06-20T12:00:00-04:00", "title": "Terra/CERES Views the Pakistan Heat Wave: May 2001", "description": "Terra/CERES views the Pakistan heat wave. || Movie of OLR changes in May 2001 near Pakistan. || a002174.00005_print.png (720x480) [630.4 KB] || a002174_pre.jpg (320x242) [9.8 KB] || a002174.webmhd.webm (960x540) [2.4 MB] || a002174.dv (720x480) [55.5 MB] || a002174.mpg (352x240) [1.5 MB] || May 5, 2001 || PakistanOLR3445.jpg (2560x1920) [420.0 KB] || PakistanOLR3445_web.jpg (320x240) [14.8 KB] || PakistanOLR3445.tif (2560x1920) [2.9 MB] || ", "hits": 36 } ] }