{
    "id": 12494,
    "url": "https://svs.gsfc.nasa.gov/12494/",
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    "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] || ",
    "release_date": "2017-02-07T00:00:00-05:00",
    "update_date": "2023-05-03T13:47:57.767098-04:00",
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                "name": "Lisa Poje",
                "employer": "USRA"
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        "Scientific consulting by": [
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                "name": "Gail Skofronick Jackson",
                "employer": "NASA/GSFC"
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            {
                "name": "Chris Kidd",
                "employer": "University of Maryland"
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            {
                "name": "Kasha Patel",
                "employer": "NASA/GSFC"
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            "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.",
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            "description": "With so many important applications, how does GPM create these maps and make sure they’re accurate? In a recent evaluation, GPM’s microwave imager was named the best calibrated microwave imager to date. So what exactly makes it the best? It’s a combination of better hardware and more advanced technology.",
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    "related": [
        {
            "id": 12497,
            "url": "https://svs.gsfc.nasa.gov/12497/",
            "page_type": "Produced Video",
            "title": "Snow Live Shots (Feb. 17, 2017)",
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            "release_date": "2017-02-08T00:00:00-05:00",
            "update_date": "2023-05-03T13:47:57.674935-04:00",
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                "media_type": "Image",
                "alt_text": "B-roll for NASA interviews on Friday, February 17, 2017.",
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        {
            "id": 4153,
            "url": "https://svs.gsfc.nasa.gov/4153/",
            "page_type": "Visualization",
            "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) || ",
            "release_date": "2014-03-25T01:00:00-04:00",
            "update_date": "2023-05-03T13:51:04.149294-04:00",
            "main_image": {
                "id": 457204,
                "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004153/Pac_storm_final.1650.jpg",
                "filename": "Pac_storm_final.1650.jpg",
                "media_type": "Image",
                "alt_text": "This animation shows GPM collecting some of it's very first data on March 10th over a Pacific storm east of Japan. The animation begins with GPM collecting 37 GHz horizontally polarized brightness temperature data over the storm (in shades of aquamarine).  All of GPM's 13 bands are then spread out to reveal the entire range of brightness temperature data. This data then collapses into rain rates for this storm, which are colored in a rainbow spectrum going from blue (low values) to dark red (high values). As the camera pulls out, GPM continues traversing the globe showing rain rates for the remainder of the swath.",
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                "height": 1080,
                "pixels": 2073600
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        },
        {
            "id": 11253,
            "url": "https://svs.gsfc.nasa.gov/11253/",
            "page_type": "Produced Video",
            "title": "GPM Instrument Animations",
            "description": "This conceptual animation shows the GPM Microwave Imager (GMI) and the Dual-frequency Precipitation Radar (DPR) scanning through a cloud detecting various precipitation particles. || ",
            "release_date": "2013-04-16T00:00:00-04:00",
            "update_date": "2025-01-06T01:27:07.098790-05:00",
            "main_image": {
                "id": 466493,
                "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011253/GPM_Instrument_Animations_youtube_hq00827_print.jpg",
                "filename": "GPM_Instrument_Animations_youtube_hq00827_print.jpg",
                "media_type": "Image",
                "alt_text": "Animations showing the GMI then DPR instruments on board the GPM Core Observatory.",
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                "pixels": 589824
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    ],
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