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    "description": "Data acquired by the Visible Infrared Imaging Radiometer Suite (VIIRS) on the Suomi National Polar-orbiting Partnership (NPP) satellite were used to create this nighttime view of Japan and the Korean Peninsula in May 2014. NOAA’s Earth Observation Group creates monthly composite nighttime images from the VIIRS day-night band (DNB) by combining cloud-free data from nights without moonlight (i.e., during the new moon phase). Here the monthly composite image has been combined with a cloud-free MODIS image that has been modified to appear more “night-like” to highlight the Earth’s land surface.City lights make several urban centers easily discernable. For example, Tokyo, Japan, located on the southeastern side of the main island, is the brightest location on the image. It is also the most populous metropolitan area in the world. Clusters of light out at sea—particularly in and around the Korean Straight—are produced by the lights from hundreds of fishing boats engaged in night fishing. One such cluster surrounds Jeju Island, South Korea—a popular tourist destination—where fishermen shine torchlights on the water to attract squid, a traditional Jeju food. The reason the lights are so prominent around the island in this image is because the time the data were collected (i.e., May during new moon) overlaps with one of the peak fishing seasons for this region—spring, during new moon. || ",
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            "title": "For More Information",
            "caption": "",
            "description": "See the following sources:\n\n* [http://earthobservatory.nasa.gov/Features/IntotheBlack/](http://earthobservatory.nasa.gov/Features/IntotheBlack/)\n* [http://ngdc.noaa.gov/eog/viirs/download_monthly.html](http://ngdc.noaa.gov/eog/viirs/download_monthly.html)",
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                    "name": "Marit Jentoft-Nilsen",
                    "employer": "Global Science and Technology, Inc."
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            "people": [
                {
                    "name": "Heather Hanson",
                    "employer": "Global Science and Technology, Inc."
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    "missions": [
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    "datasets": [
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            "name": "",
            "common_name": "VIIRS",
            "platform": "Suomi NPP",
            "sensor": "VIIRS",
            "type": "Other",
            "organizations": [],
            "description": "",
            "credit": "",
            "url": "",
            "date_range": null
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        "Location",
        "Night lights",
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    "related": [
        {
            "id": 30028,
            "url": "https://svs.gsfc.nasa.gov/30028/",
            "page_type": "Hyperwall Visual",
            "title": "Earth at Night 2012",
            "description": "This new space-based view of Earth's city lights is a composite assembled from data acquired by the Suomi National Polar-orbiting Partnership (Suomi NPP) satellite. The data was acquired over nine days in April 2012 and thirteen days in October 2012. It took the satellite 312 orbits and 2.5 terabytes of data to get a clear shot of every parcel of Earth's land surface and islands. This new data was then mapped over existing MODIS Blue Marble imagery to provide a realistic view of the planet.The view was made possible by the \"day-night band\" of Suomi NPP's Visible Infrared Imaging Radiometer Suite. VIIRS detects light in a range of wavelengths from green to near-infrared and uses \"smart\" light sensors to observe dim signals such as city lights, auroras, wildfires, and reflected moonlight. This low-light sensor can distinguish night lights tens to hundreds of times better than previous satellites. || ",
            "release_date": "2013-04-05T00:00:00-04:00",
            "update_date": "2025-02-02T00:24:29.642234-05:00",
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                "media_type": "Image",
                "alt_text": "Flat map of the whole Earth",
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