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    "results": [
        {
            "id": 5373,
            "url": "https://svs.gsfc.nasa.gov/5373/",
            "result_type": "Visualization",
            "release_date": "2024-09-03T13:00:00-04:00",
            "title": "PREFIRE First Light",
            "description": "Visualization emphasizing two passes of PREFIRE over Greenland. Information about the rates of atmospheric emission can be derived from the change in emission at the intersection of the passes. || prefire_first_light_FINAL_2160p30.00450_print.jpg (1024x576) [224.8 KB] || prefire_first_light_FINAL_2160p30.00450_thm.png (80x40) [6.3 KB] || prefire_first_light_FINAL_2160p30.00450_searchweb.png (320x180) [78.7 KB] || prefire_first_light_FINAL [0 Item(s)] || prefire_first_light_FINAL_1080p30.mp4 (1920x1080) [47.2 MB] || prefire_first_light_FINAL_4K [0 Item(s)] || prefire_first_light_FINAL_2160p30.mp4 (3840x2160) [133.7 MB] || prefire_first_light_FINAL_2160p30.mp4.hwshow [199 bytes] || ",
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        {
            "id": 12494,
            "url": "https://svs.gsfc.nasa.gov/12494/",
            "result_type": "Produced Video",
            "release_date": "2017-02-07T00:00:00-05:00",
            "title": "GPM Has Best Calibrated Microwave Imager in the World",
            "description": "This is an infographic describing how the GPM Microwave Imager works and maintains its high degree of calibration, as well as how it contributes to the precipitation rates produced by the mission. || GMI_Calibration_Infographic_10_Final.jpg (1275x5978) [2.9 MB] || GMI_thumbnail_searchweb.png (320x180) [39.4 KB] || GMI_thumbnail_thm.png (80x40) [4.2 KB] || ",
            "hits": 23
        },
        {
            "id": 4163,
            "url": "https://svs.gsfc.nasa.gov/4163/",
            "result_type": "Visualization",
            "release_date": "2014-05-29T00:00:00-04:00",
            "title": "GPM Senses East Coast Snow Storm on March 17th, 2014",
            "description": "The Global Precipitation Measurement (GPM) Mission is a joint satellite mission between NASA and JAXA. GPM has the capability of differentiating between liquid and frozen precipitation. In this visualization we see a large east coast snow storm through the eyes of GPM. || ",
            "hits": 16
        },
        {
            "id": 4153,
            "url": "https://svs.gsfc.nasa.gov/4153/",
            "result_type": "Visualization",
            "release_date": "2014-03-25T01:00:00-04:00",
            "title": "GPM/GMI First Light",
            "description": "Eleven days after the Feb. 27 launch of the Global Precipitation Measurement (GPM) Core Observatory, the two instruments aboard took their first joint images of an interesting precipitation event. On March 10, the Core Observatory passed over an extra-tropical cyclone about 1055 miles (1700 kilometers) due east of Japan's Honshu Island. The storm formed from the collision of a cold front wrapping around a warm front, emerging over the ocean near Okinawa on March 8. It moved northeast over the ocean south of Japan, drawing cold air west-to-east over the land, a typical winter weather pattern that also brought heavy snow over Hokkaido, the northernmost of the four main islands. After the GPM images were taken, the storm continued to move eastward, slowly intensifying before weakening in the central North Pacific.This visualization shows data from the GPM Microwave Imager, which observes different types of precipitation with 13 channels. Scientists analyze that data and then use it to calculate the light to heavy rain rates and falling snow within the storm.For more information on this topic:     GPM web siteOther multimedia items related to this story:     GPM GMI First Light (#11508)     GPM DPR First Light (#11509) || ",
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        },
        {
            "id": 11508,
            "url": "https://svs.gsfc.nasa.gov/11508/",
            "result_type": "Produced Video",
            "release_date": "2014-03-25T01:00:00-04:00",
            "title": "GPM GMI First Light",
            "description": "On March 10, the Core Observatory passed over an extra-tropical cyclone about 1055 miles (1700 kilometers) due east of Japan's Honshu Island. This visualization shows data from the GPM Microwave Imager, which observes different types of precipitation with 13 channels. Scientists analyze that data and then use it to calculate the light to heavy rain rates and falling snow within the storm. || ",
            "hits": 27
        },
        {
            "id": 3349,
            "url": "https://svs.gsfc.nasa.gov/3349/",
            "result_type": "Visualization",
            "release_date": "2006-04-04T00:00:00-04:00",
            "title": "TRMM Satellite and TMI Swath",
            "description": "The Tropical Rainfall Measuring Mission (TRMM) satellite was launched on November 27, 1997, as a joint mission of NASA and the Japan Aerospace Exploration Agency, JAXA. TRMM has five Earth-observing instruments on board and circles the Earth every 92 minutes in an equatorial orbit between 35 degrees north and south latitude so that those instruments can measure precipitation in the tropics. One of the instruments, TMI, observes five frequencies of microwave emissions in a 780-kilometer wide swath along the orbit in order to measure the amount of rain and ice in the atmosphere. This animation shows the TRMM satellite orbiting for one day, August 27, 2005, showing a set of TRMM measurements at a frequency of 85.5 GHz. In this frequency band, atmospheric ice crystals scatter microwaves and so areas with ice crystals appear colder than areas with no ice. Both Hurricane Katrina, just to the west of Florida in the Gulf of Mexico, and Typhoon Talim, in the westerm Pacific between Japan and New Guinea, show up as bright swirling patterns. This measurement is just one of the TMI measurements that go into calculating the total instantaneous rainfall in the tropics. || ",
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        },
        {
            "id": 3248,
            "url": "https://svs.gsfc.nasa.gov/3248/",
            "result_type": "Visualization",
            "release_date": "2005-10-19T00:00:00-04:00",
            "title": "TRMM Microwave Brightness Temperature Progression During Hurricane Katrina: Horizontal Polarization",
            "description": "The TMI instrument on the TRMM satellite measures microwaves emitted from the Earth's land and water. By comparing emission from different microwave frequencies, the characteristics of ice and water in the atmosphere can be determined. For example, 85 GHz microwaves are scattered by ice crystals in tropical cyclones, making cyclone rain bands appear 'colder' than the surrounding areas. By comparing 85 GHz temperatures in different polarizations with other frequency band measurements, accurate measurements of rainfall in the atmosphere can be made. This animation builds up four days of global TMI 85 GHz measurements. Hurricane Katrina was in the Gulf of Mexico at the time and clearly shows up in the measurements. || ",
            "hits": 23
        },
        {
            "id": 3242,
            "url": "https://svs.gsfc.nasa.gov/3242/",
            "result_type": "Visualization",
            "release_date": "2005-10-05T00:00:00-04:00",
            "title": "TRMM Microwave Brightness Temperature Swath during Hurricane Katrina: Vertical Polarization",
            "description": "The TMI instrument on the TRMM satellite measures microwaves emitted from the Earth's land and water.  By comparing emission from different microwave frequencies, the characteristics of ice and water in the atmosphere can be determined.  For example, 85 GHz microwaves are scattered by ice crystals in tropical cyclones, making cyclone rain bands appear 'colder' than the surrounding areas.  By comparing 85 GHz temperatures in different polarizations with other frequency band measurements, accurate measurements of rainfall in the atmosphere can be made.  This animation shows four days of TMI 85 GHz measurements, one orbit at a time.  Hurricane Katrina was in the Gulf of Mexico at the time and clearly shows up in the measurements. || ",
            "hits": 23
        },
        {
            "id": 3243,
            "url": "https://svs.gsfc.nasa.gov/3243/",
            "result_type": "Visualization",
            "release_date": "2005-10-05T00:00:00-04:00",
            "title": "TRMM Microwave Brightness Temperature Swath during Hurricane Katrina: Horizontal Polarization",
            "description": "The TMI instrument on the TRMM satellite measures microwaves emitted from the Earth's land and water.  By comparing emission from different microwave frequencies, the characteristics of ice and water in the atmosphere can be determined.  For example, 85 GHz microwaves are scattered by ice crystals in tropical cyclones, making cyclone rain bands appear 'colder' than the surrounding areas.  By comparing 85 GHz temperatures in different polarizations with other frequency band measurements, accurate measurements of rainfall in the atmosphere can be made.  This animation shows four days of TMI 85 GHz measurements, one orbit at a time.  Hurricane Katrina was in the Gulf of Mexico at the time and clearly shows up in the measurements. || ",
            "hits": 15
        },
        {
            "id": 3247,
            "url": "https://svs.gsfc.nasa.gov/3247/",
            "result_type": "Visualization",
            "release_date": "2005-10-05T00:00:00-04:00",
            "title": "TRMM Microwave Brightness Temperature Progression during Hurricane Katrina: Vertical Polarization",
            "description": "The TMI instrument on the TRMM satellite measures microwaves emitted from the Earth's land and water.  By comparing emission from different microwave frequencies, the characteristics of ice and water in the atmosphere can be determined.  For example, 85 GHz microwaves are scattered by ice crystals in tropical cyclones, making cyclone rain bands appear 'colder' than the surrounding areas.  By comparing 85 GHz temperatures in different polarizations with other frequency band measurements, accurate measurements of rainfall in the atmosphere can be made.  This animation builds up four days of global TMI 85 GHz measurements.  Hurricane Katrina was in the Gulf of Mexico at the time and clearly shows up in the measurements. || ",
            "hits": 18
        },
        {
            "id": 3249,
            "url": "https://svs.gsfc.nasa.gov/3249/",
            "result_type": "Visualization",
            "release_date": "2005-10-05T00:00:00-04:00",
            "title": "TRMM Microwave Measurements during Hurricane Katrina: Vertical Polarization",
            "description": "The TMI instrument on the TRMM satellite measures microwaves emitted from the Earth's land and water.  By comparing emission from different microwave frequencies, the characteristics of ice and water in the atmosphere can be determined.  For example, 85 GHz microwaves are scattered by ice crystals in tropical cyclones, making cyclone rain bands appear 'colder' than the surrounding areas.  By comparing 85 GHz temperatures in different polarizations with other frequency band measurements, accurate measurements of rainfall in the atmosphere can be made.  This animation shows eight days of global TMI 85 GHz measurements in the Gulf of Mexico during Hurricane Katrina.  The hurricane Katrina rainbands clearly show up in these images. || ",
            "hits": 22
        },
        {
            "id": 3250,
            "url": "https://svs.gsfc.nasa.gov/3250/",
            "result_type": "Visualization",
            "release_date": "2005-10-05T00:00:00-04:00",
            "title": "TRMM Microwave Measurements during Hurricane Katrina: Horizontal Polarization",
            "description": "The TMI instrument on the TRMM satellite measures microwaves emitted from the Earth's land and water.  By comparing emission from different microwave frequencies, the characteristics of ice and water in the atmosphere can be determined.  For example, 85 GHz microwaves are scattered by ice crystals in tropical cyclones, making cyclone rain bands appear 'colder' than the surrounding areas.  By comparing 85 GHz temperatures in different polarizations with other frequency band measurements, accurate measurements of rainfall in the atmosphere can be made.  This animation shows eight days of global TMI 85 GHz measurements in the Gulf of Mexico during Hurricane Katrina.  The hurricane Katrina rainbands clearly show up in these images. || ",
            "hits": 33
        }
    ]
}