{
    "count": 2,
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    "results": [
        {
            "id": 3207,
            "url": "https://svs.gsfc.nasa.gov/3207/",
            "result_type": "Visualization",
            "release_date": "2005-07-28T11:00:00-04:00",
            "title": "Global 300 hPa Geopotential Height during Hurricane Frances (WMS)",
            "description": "The Earth's atmosphere exerts pressure based on the weight of the air above, so the pressure reduces with rising altitude.  This rate of pressure reduction with altitude is based on the temperature of the air, with the pressure of colder air reducing faster with altitude than warmer air.  Therefore, a surface of constant pressure has a lower altitude at the poles than the equator.  This animation shows the altitude above sea level (the geopotential height) of the 300 hectopascal (hPa) pressure surface for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean.  This pressure is about one-third of the normal pressure at sea level.  The largest downward slope of this surface occurs in the mid-latitudes and is shown in yellow in the animation.  At this region, air is trying to flow from the equator towards the poles to reduce the slope, but the rotation of the Earth forces the flow to divert to the east, forming the strong west-to-east jet stream flows in these regions.  Frances and Songda can be seen as sharp yellow dots of reduced height in their respective locations. || ",
            "hits": 127
        },
        {
            "id": 3182,
            "url": "https://svs.gsfc.nasa.gov/3182/",
            "result_type": "Visualization",
            "release_date": "2005-07-27T11:00:00-04:00",
            "title": "Global Atmospheric Sea Level Pressure during Hurricane Frances (WMS)",
            "description": "The weight of the Earth's atmosphere exerts pressure on the surface of the Earth.  This pressure varies from place-to-place due the variations in the Earth's surface since higher altitudes have less atmosphere above them than lower altitudes.  Atmospheric pressure also varies from time-to-time due to the uneven heating of the atmosphere by the sun and the rotation of the Earth, causing weather.  In order to see the changes in pressure which affect the weather, the variation due to altitude is removed from the surface pressure, creating a quantity called sea level pressure.  This animation shows the atmospheric sea level pressure for the whole globe from September 1, 2004, through September 5, 2004, during the period of Hurricane Frances in the western Atlantic Ocean and Typhoon Songda in the western Pacific Ocean.  The sharp, moving low pressures areas for Frances and Songda can be clearly seen in the oceans.  Even with the direct effect of altitude removed, cold high-altitude regions such as the South Pole and the Himalayan Plateau still exhibit lower-than-normal pressures, probably due to the interaction of cold air over those regions with the warmer air in the surrounding regions. || ",
            "hits": 65
        }
    ]
}