{
    "count": 3,
    "next": null,
    "previous": null,
    "results": [
        {
            "id": 30500,
            "url": "https://svs.gsfc.nasa.gov/30500/",
            "result_type": "Hyperwall Visual",
            "release_date": "2014-05-13T00:00:00-04:00",
            "title": "Altimetry: Past, Present and Future",
            "description": "Launched in 1978, Seasat was the first NASA Earth-orbiting satellite mission designed to observe the world’s ocean. Seasat carried five major instruments, including a radar altimeter that measured the distance between the satellite and sea surface, indicating global sea surface height and the topography of the ocean surface. This visualization shows the progression of improved data resolution from satellite altimeters in the past, present, and future, beginning with 1.5-degree resolution data in 1978 from Seasat and ending with 0.05-degree resolution data from NASA’s Surface Water and Ocean Topography (SWOT) mission, planned to launch in 2020. A single satellite (Geosat) provided 0.5-degree resolution data from 1986 to 1990, while numerous international satellite missions (ERS-1, TOPEX/Poseidon, ERS-2, Jason-1, Envisat, and Jason-2) have provided 0.25-degree resolution data from 1992 until now. These measurements and their continuity are important for monitoring large-scale features such as Rossby and Kelvin waves, the evolution of El Niño and La Niña events, and variation of global sea level in relation to climate change. SWOT (with 0.05-degree-resolution) will offer an unprecedented combination of spatial and temporal resolution while continuing and extending the ocean altimeter data record for years to come. || ",
            "hits": 27
        },
        {
            "id": 2970,
            "url": "https://svs.gsfc.nasa.gov/2970/",
            "result_type": "Visualization",
            "release_date": "2004-08-05T12:00:00-04:00",
            "title": "Volumetric Visualization of the Convection-generated Stresses in Earth",
            "description": "The fundamental problem of the deformation of the Earth involves stress conditions on the basis of the crust caused by the mantle convection. Based on decades of satellite gravity data, a harmonic analytical model of the convection flow has been developed at GSFC. The magnitudes and directions of the resultant stresses in the crust were obtained at 64,000 grid points for each of 18 layers from 150 km to 600 km under the Earth. In this project, we explored three dimensional volumetric visualization methods for the data. To overcome the typical volumetric visualization obstacles such as enormous amount of data and opacity of objects in the scene, we developed an interactive and transparent isosurface model to render the volumetric data. a) Animated isosurfaces of earth stress below Hawaii. The blue objects indicate the shape of the stress distribution and the yellow objects indicate the high stress areas. b) Interactive global earth stress. To view the model, please use the QuickTime Player (similarly, please select the QuickTime version of the movie). Hold the left button and drag the mouse horizontally to view areas on the earth at the same depth. Hold the left button and drag the mouse vertically to view the different layers of the stress distributions inside the earth, between 150 km to 600 km deep. || ",
            "hits": 32
        },
        {
            "id": 1400,
            "url": "https://svs.gsfc.nasa.gov/1400/",
            "result_type": "Visualization",
            "release_date": "1999-11-08T12:00:00-05:00",
            "title": "Antarctica: Larsen Ice Shelf Side by Side Comparison",
            "description": "In 1978, scientists predicted that global warming would lead to a disintegration of Antarctic Peninsula ice shelves. Spaceborne data indicate that this prediction may be coming true. In these before and after images, note the dramatic change in the apparent shoreline. Scientists captured the first image using the ERS-1 satellite in 1992. As seen in the second image, collected by RADARSAT in 1997, huge changes have come to the coastline. In 1995, a 2000 square kilometer section of the ice shelf collapsed into thousands of fragments that eventually drifted out to sea. Researchers are still debating why the ice shelf broke up so dramatically, and what significance the break up has for interpreting local versus global changes to the environment. Theories include a series of warmer than usual summers which may have caused high levels of surface melting, or an overall climate warming trend. || ",
            "hits": 18
        }
    ]
}