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    "page_type": "Hyperwall Visual",
    "title": "NASA Spots Single Methane Leak from Space",
    "description": "Comparison of detected methane plumes over Aliso Canyon, California, acquired 11 days apart in Jan. 2016 by: (left) NASA's AVIRIS instrument on a NASA ER-2 aircraft at 4.1 miles (6.6 kilometers) altitude and (right) by the Hyperion instrument on NASA's Earth Observing-1 satellite in low-Earth orbit at approximately 700km. || hyperion_methane_aliso_canyon_PIA20716.png (1920x1080) [2.0 MB] || hyperion_methane_aliso_canyon_PIA20716_print.jpg (1024x576) [189.5 KB] || hyperion_methane_aliso_canyon_PIA20716_searchweb.png (320x180) [126.3 KB] || hyperion_methane_aliso_canyon_PIA20716_thm.png (80x40) [8.5 KB] || hyperion_methane_aliso_canyon_PIA20716.hwshow [244 bytes] || ",
    "release_date": "2016-06-22T00:00:00-04:00",
    "update_date": "2024-10-10T00:26:36.570197-04:00",
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        "alt_text": "Comparison of detected methane plumes over Aliso Canyon, California, acquired 11 days apart in Jan. 2016 by: (left) NASA's AVIRIS instrument on a NASA ER-2 aircraft at 4.1 miles (6.6 kilometers) altitude and (right) by the Hyperion instrument on NASA's Earth Observing-1 satellite in low-Earth orbit at approximately 700km. ",
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            "description": "Comparison of detected methane plumes over Aliso Canyon, California, acquired 11 days apart in Jan. 2016 by: (left) NASA's AVIRIS instrument on a NASA ER-2 aircraft at 4.1 miles (6.6 kilometers) altitude and (right) by the Hyperion instrument on NASA's Earth Observing-1 satellite in low-Earth orbit at approximately 700km. ",
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                        "alt_text": "Comparison of detected methane plumes over Aliso Canyon, California, acquired 11 days apart in Jan. 2016 by: (left) NASA's AVIRIS instrument on a NASA ER-2 aircraft at 4.1 miles (6.6 kilometers) altitude and (right) by the Hyperion instrument on NASA's Earth Observing-1 satellite in low-Earth orbit at approximately 700km. ",
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                        "alt_text": "Comparison of detected methane plumes over Aliso Canyon, California, acquired 11 days apart in Jan. 2016 by: (left) NASA's AVIRIS instrument on a NASA ER-2 aircraft at 4.1 miles (6.6 kilometers) altitude and (right) by the Hyperion instrument on NASA's Earth Observing-1 satellite in low-Earth orbit at approximately 700km. ",
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                        "alt_text": "Comparison of detected methane plumes over Aliso Canyon, California, acquired 11 days apart in Jan. 2016 by: (left) NASA's AVIRIS instrument on a NASA ER-2 aircraft at 4.1 miles (6.6 kilometers) altitude and (right) by the Hyperion instrument on NASA's Earth Observing-1 satellite in low-Earth orbit at approximately 700km. ",
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                        "alt_text": "Comparison of detected methane plumes over Aliso Canyon, California, acquired 11 days apart in Jan. 2016 by: (left) NASA's AVIRIS instrument on a NASA ER-2 aircraft at 4.1 miles (6.6 kilometers) altitude and (right) by the Hyperion instrument on NASA's Earth Observing-1 satellite in low-Earth orbit at approximately 700km. ",
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            "description": "Atmospheric methane is a potent greenhouse gas, but the percentage of it produced through human activities is still poorly understood. Future instruments on orbiting satellites can help address this issue by surveying human-produced methane emissions. Data from the Aliso Canyon event, a large accidental methane release near Porter Ranch, California, demonstrates this capability. The Hyperion imaging spectrometer onboard NASA's EO-1 satellite successfully detected this release event on three different overpasses during the winter of 2015-2016. This is the first time the methane plume from a single facility has been observed from space. The orbital observations were consistent with airborne measurements.<p>\r\rThis image pair shows a comparison of detected methane plumes over Aliso Canyon, California, acquired 11 days apart in January 2016 by NASA's AVIRIS instrument on a NASA ER-2 aircraft at 4.1 miles (6.6 kilometers) altitude [left] and by the Hyperion instrument on NASA's Earth Observing-1 satellite in low-Earth orbit [right]. The additional red streaks visible in the EO-1 Hyperion image result from measurement noise—Hyperion was not specifically designed for methane sensing and is not as sensitive as AVIRIS. Additionally, the EO-1 satellite's current orbit provided poor illumination conditions. Future instruments with much greater sensitivity on orbiting satellites can survey the biggest sources of human-produced methane around the world.",
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        {
            "id": 333673,
            "url": "https://svs.gsfc.nasa.gov/30787/#media_group_333673",
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            "title": "For More Information",
            "caption": "",
            "description": "See [http://photojournal.jpl.nasa.gov/catalog/PIA20716](http://photojournal.jpl.nasa.gov/catalog/PIA20716)",
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    "funding_sources": [
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    "credits": [
        {
            "role": "Technical support",
            "people": [
                {
                    "name": "Marit Jentoft-Nilsen",
                    "employer": "Global Science and Technology, Inc."
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    "datasets": [
        {
            "name": "",
            "common_name": "",
            "platform": "EO-1",
            "sensor": "Hyperion",
            "type": "Other",
            "organizations": [],
            "description": "",
            "credit": "",
            "url": "",
            "date_range": null
        }
    ],
    "nasa_science_categories": [
        "Earth"
    ],
    "keywords": [
        "Atmosphere",
        "Atmospheric Chemistry/Carbon and Hydrocarbon Compounds",
        "Earth Science",
        "Hyperwall",
        "Methane"
    ],
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