{
    "id": 15039,
    "url": "https://svs.gsfc.nasa.gov/15039/",
    "page_type": "Gallery",
    "title": "Landsat and HLS (Harmonized Landsat and Sentinel-2) Time Series",
    "description": "This gallery contains time series animations which utilizes the extensive Landsat data archive of Earth’s surface. Watch seasonal shifts in cropland, long-term coastline change, and more.",
    "release_date": "2026-05-06T16:50:00-04:00",
    "update_date": "2026-05-06T16:59:03.316513-04:00",
    "main_image": {
        "id": 1203665,
        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015022/LakeCarnegie_Natural_Print.jpg",
        "filename": "LakeCarnegie_Natural_Print.jpg",
        "media_type": "Image",
        "alt_text": "A natural-color Landsat time series of Lake Carnegie, Australia, spanning August 2019 to July 2021, showing seasonal changes in water extent across the lake.",
        "width": 1280,
        "height": 720,
        "pixels": 921600
    },
    "main_video": {
        "id": 1203669,
        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015022/Lake_Carnegie_-_Natural_Color_-_Web.mp4",
        "filename": "Lake_Carnegie_-_Natural_Color_-_Web.mp4",
        "media_type": "Movie",
        "alt_text": "A natural-color Landsat time series of Lake Carnegie, Australia, spanning August 2019 to July 2021, showing seasonal changes in water extent across the lake.",
        "width": 1920,
        "height": 1080,
        "pixels": 2073600
    },
    "main_credits": {},
    "progress": "Complete",
    "media_groups": [
        {
            "id": 380289,
            "url": "https://svs.gsfc.nasa.gov/15039/#media_group_380289",
            "widget": "Basic text",
            "title": "",
            "caption": "",
            "description": "This gallery contains time series animations which utilizes the extensive Landsat and HLS (Harmonized Landsat and Sentinel-2) data archive of Earth’s surface. Watch seasonal shifts in cropland, long-term coastline change, and more.",
            "items": [],
            "extra_data": {}
        },
        {
            "id": 380290,
            "url": "https://svs.gsfc.nasa.gov/15039/#media_group_380290",
            "widget": "Tile gallery",
            "title": "Landsat Time Series",
            "caption": "",
            "description": "",
            "items": [
                {
                    "id": 521326,
                    "type": "details_page",
                    "extra_data": null,
                    "instance": {
                        "id": 15005,
                        "url": "https://svs.gsfc.nasa.gov/15005/",
                        "page_type": "Visualization",
                        "title": "Mount Saint Helens Recovery",
                        "description": "In 1980, Mount Saint Helens erupted and destroyed 230 square miles of forest in Washington State. This near-infrared time series follows the decades-long recovery of that scarred landscape. Volcanic ash and rock appear grey, while plant life appears bright red.",
                        "release_date": "2026-04-28T00:00:00-04:00",
                        "update_date": "2026-05-06T14:27:59.140827-04:00",
                        "main_image": {
                            "id": 1203370,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015005/MtSaintHelens_THUMB.png",
                            "filename": "MtSaintHelens_THUMB.png",
                            "media_type": "Image",
                            "alt_text": "A infrared-color Landsat time series of Mount Saint Helens spanning from 1975 to 2025, utilizing near-infrared wavelengths to highlight the catastrophic eruption and the gradual recovery of vegetation over time.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                },
                {
                    "id": 521327,
                    "type": "details_page",
                    "extra_data": null,
                    "instance": {
                        "id": 15037,
                        "url": "https://svs.gsfc.nasa.gov/15037/",
                        "page_type": "Visualization",
                        "title": "The Receding Breiðamerkurjökull Glacier, Iceland",
                        "description": "Breiðamerkurjökull, an outlet glacier of Iceland’s Vatnajökull ice cap, has been in rapid retreat for decades. As the ice shrinks, it expands the deepening Jökulsárlón lagoon. Warm saltwater from the North Atlantic flows into this basin, accelerating the melting and calving of the glacier's edge. Because these icy landscapes are too vast and remote to measure entirely from the ground, Landsat’s  record is vital for tracking trends over time.",
                        "release_date": "2026-05-06T12:00:00-04:00",
                        "update_date": "2026-05-06T16:26:51.633771-04:00",
                        "main_image": {
                            "id": 1203779,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015037/15037---Icelandic-Glacier_print.jpg",
                            "filename": "15037---Icelandic-Glacier_print.jpg",
                            "media_type": "Image",
                            "alt_text": "A infrared-color Landsat time series of Iceland’s Breiðamerkurjökull glacier spanning from 1985 to 2025, revealing the rapid retreat of the ice edge and the expansion of the Jökulsárlón glacial lagoon over time.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                },
                {
                    "id": 521329,
                    "type": "details_page",
                    "extra_data": null,
                    "instance": {
                        "id": 15007,
                        "url": "https://svs.gsfc.nasa.gov/15007/",
                        "page_type": "Visualization",
                        "title": "Urban Growth in Nouakchott, Mauritania",
                        "description": "Nouakchott, Mauritania rapidly expanded its urban footprint from 1984 to 2026, driven by a surge in population from 278,000 to 1.7 million. This growing city is continually threatened by creeping Saharan sand dunes at its city limits. The two time series below reveal this dramatic transformation using both natural-color and urban infrared-color satellite imagery.",
                        "release_date": "2026-04-28T00:00:00-04:00",
                        "update_date": "2026-05-06T14:55:51.580322-04:00",
                        "main_image": {
                            "id": 1203382,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015007/Nouakchott_NatColor_Print.jpg",
                            "filename": "Nouakchott_NatColor_Print.jpg",
                            "media_type": "Image",
                            "alt_text": "A natural-color Landsat time series of Nouakchott spanning from 1984 to 2026, highlighting massive urban expansion over time.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                },
                {
                    "id": 521331,
                    "type": "details_page",
                    "extra_data": null,
                    "instance": {
                        "id": 15008,
                        "url": "https://svs.gsfc.nasa.gov/15008/",
                        "page_type": "Visualization",
                        "title": "The Shrinking Amistad Reservoir",
                        "description": "The Amistad Reservoir, which straddles the U.S.-Mexico border, has shrunk and surged repeatedly from 1985 to 2025. Despite these seasonal and annual cycles, prolonged regional drought and population growth has strained the reservoir, leading to an overall decline in water levels.",
                        "release_date": "2026-04-28T00:00:00-04:00",
                        "update_date": "2026-05-06T14:58:33.618599-04:00",
                        "main_image": {
                            "id": 1203392,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015008/AmistadReservoir_Print.jpg",
                            "filename": "AmistadReservoir_Print.jpg",
                            "media_type": "Image",
                            "alt_text": "A natural-color Landsat time series of the Amistad Reservoir spanning from 1985 to 2025, highlighting its dramatic water loss and shrinking footprint over time.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                },
                {
                    "id": 521332,
                    "type": "details_page",
                    "extra_data": null,
                    "instance": {
                        "id": 15009,
                        "url": "https://svs.gsfc.nasa.gov/15009/",
                        "page_type": "Visualization",
                        "title": "Water Loss in Lake Milh (Razzaza), Iraq",
                        "description": "Lake Milh, Iraq was once a thriving resort and ecological haven. Over the past 3 decades, the lake has experienced extreme water loss, increasing salinity, and occasional algal blooms. These blooms, seen as red stains in 2019 and 2025, are driven by environmental and human impacts.",
                        "release_date": "2026-04-28T00:00:00-04:00",
                        "update_date": "2026-05-06T15:02:28.359480-04:00",
                        "main_image": {
                            "id": 1203400,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015009/LakeRazzaza_SearchWeb.jpg",
                            "filename": "LakeRazzaza_SearchWeb.jpg",
                            "media_type": "Image",
                            "alt_text": "A natural-color Landsat time series of Iraq’s Lake Milh spanning from 1988 to 2025, highlighting its dramatic water fluctuations and severe loss due to droughts, dam management, and conflict.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                },
                {
                    "id": 521333,
                    "type": "details_page",
                    "extra_data": null,
                    "instance": {
                        "id": 15010,
                        "url": "https://svs.gsfc.nasa.gov/15010/",
                        "page_type": "Visualization",
                        "title": "Lake Mead Recedes",
                        "description": "Lake Mead has the largest storage capacity of any reservoir in the U.S. However, decades of increasing water demand and drought in the American West have caused a continual decline in water levels. This time series shows the gradual shrinkage of Lake Mead’s shorelines, which now sit lower than any time since the 1930s.",
                        "release_date": "2026-04-28T00:00:00-04:00",
                        "update_date": "2026-05-06T15:12:21.823318-04:00",
                        "main_image": {
                            "id": 1203405,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015010/LakeMead_Print.jpg",
                            "filename": "LakeMead_Print.jpg",
                            "media_type": "Image",
                            "alt_text": "A natural-color Landsat time series of Lake Mead spanning from 1985 to 2025, highlighting its dramatic shrinkage and water loss over time.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                },
                {
                    "id": 521334,
                    "type": "details_page",
                    "extra_data": null,
                    "instance": {
                        "id": 15017,
                        "url": "https://svs.gsfc.nasa.gov/15017/",
                        "page_type": "Visualization",
                        "title": "Urban Growth in Las Vegas",
                        "description": "Over the course of four decades, Las Vegas sprawls outward into the pale background of the Mojave Desert. Landsat satellites captured this steady transformation of open desert to developed metropolitan grid. ||",
                        "release_date": "2026-05-06T10:00:00-04:00",
                        "update_date": "2026-05-06T15:15:20.332185-04:00",
                        "main_image": {
                            "id": 1203613,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015017/LasVegas_Print.jpg",
                            "filename": "LasVegas_Print.jpg",
                            "media_type": "Image",
                            "alt_text": "A natural-color Landsat time series of Las Vegas, spanning from 1985 to 2025, showing the dramatic urban expansion over time",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                },
                {
                    "id": 521335,
                    "type": "details_page",
                    "extra_data": null,
                    "instance": {
                        "id": 15019,
                        "url": "https://svs.gsfc.nasa.gov/15019/",
                        "page_type": "Visualization",
                        "title": "Reno, Nevada and Surrounding Areas",
                        "description": "This collection of Landsat time series explores dynamic landscape changes across the Sierra Nevada. It shows a four-decade look at rapid urban expansion in Reno, Nevada with a targeted, false-color analysis of severe late-2021 wildfire burn scars near Lake Tahoe.",
                        "release_date": "2026-05-06T12:00:00-04:00",
                        "update_date": "2026-05-06T15:25:14.107349-04:00",
                        "main_image": {
                            "id": 1203640,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015019/Reno_Print.jpg",
                            "filename": "Reno_Print.jpg",
                            "media_type": "Image",
                            "alt_text": "A natural-color Landsat time series of Reno, Nevada, spanning 1985 to 2025, showing urban development and the historical accumulation of burn scars in the surrounding region.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                },
                {
                    "id": 521336,
                    "type": "details_page",
                    "extra_data": null,
                    "instance": {
                        "id": 15020,
                        "url": "https://svs.gsfc.nasa.gov/15020/",
                        "page_type": "Visualization",
                        "title": "The Shrinking Great Salt Lake",
                        "description": "The Great Salt Lake is shrinking. Driven by upstream water diversions and a shifting climate, the largest saline lake in the Western Hemisphere has experienced a severe, decades-long decline. This time series captures the transformation of the Great Salt Lake, watching it plummet from historic highs in the 1980s to record low water levels in the 2020s.",
                        "release_date": "2026-05-06T12:00:00-04:00",
                        "update_date": "2026-05-06T15:36:55.526182-04:00",
                        "main_image": {
                            "id": 1203654,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015020/TheGreatSaltLake_Print.jpg",
                            "filename": "TheGreatSaltLake_Print.jpg",
                            "media_type": "Image",
                            "alt_text": "A natural-color Landsat time series of the Great Salt Lake, spanning from 1984 to 2023, highlighting the dramatic loss of water over time.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                },
                {
                    "id": 521337,
                    "type": "details_page",
                    "extra_data": null,
                    "instance": {
                        "id": 15021,
                        "url": "https://svs.gsfc.nasa.gov/15021/",
                        "page_type": "Visualization",
                        "title": "The Meandering Ucayali River",
                        "description": "Peru’s restless Ucayali River is constantly changing shape. Landsat satellites captured the the headwater of the Amazon over four decades as it twisted its way across the landscape, meandering, shifting channels, and forming oxbow lakes.",
                        "release_date": "2026-05-06T12:00:00-04:00",
                        "update_date": "2026-05-06T15:39:36.167040-04:00",
                        "main_image": {
                            "id": 1203657,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015021/Ucayali_Print.jpg",
                            "filename": "Ucayali_Print.jpg",
                            "media_type": "Image",
                            "alt_text": "A natural-color Landsat time series of the Ucayali River, spanning 1985 to 2023, showing the meandering shifts of the waterway and the formation of oxbow lakes.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                },
                {
                    "id": 521338,
                    "type": "details_page",
                    "extra_data": null,
                    "instance": {
                        "id": 15022,
                        "url": "https://svs.gsfc.nasa.gov/15022/",
                        "page_type": "Visualization",
                        "title": "The Ephemeral Lake Carnegie",
                        "description": "Lake Carnegie in Western Australia is typically a dry expanse, but transforms into a temporary oasis following intense tropical storms. These natural and infrared-color time series document the inundation triggered by rains, revealing stark seasonal shifts in water and vegetation across the Western Australian landscape.",
                        "release_date": "2026-05-06T12:00:00-04:00",
                        "update_date": "2026-05-06T15:42:55.367566-04:00",
                        "main_image": {
                            "id": 1203665,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015022/LakeCarnegie_Natural_Print.jpg",
                            "filename": "LakeCarnegie_Natural_Print.jpg",
                            "media_type": "Image",
                            "alt_text": "A natural-color Landsat time series of Lake Carnegie, Australia, spanning August 2019 to July 2021, showing seasonal changes in water extent across the lake.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                },
                {
                    "id": 521339,
                    "type": "details_page",
                    "extra_data": null,
                    "instance": {
                        "id": 15023,
                        "url": "https://svs.gsfc.nasa.gov/15023/",
                        "page_type": "Visualization",
                        "title": "Erosion in the Beaufort Sea Coastline",
                        "description": "For the past 40 years, the coastline of Alaska’s Beaufort Sea has been retreating. This time series uses near-infrared imagery to contrast land and water, highlighting how thawing permafrost and longer ice-free seasons have accelerated coastal erosion, reshaping the Arctic landscape.",
                        "release_date": "2026-05-06T12:00:00-04:00",
                        "update_date": "2026-05-06T15:46:45.161010-04:00",
                        "main_image": {
                            "id": 1203677,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015023/BeaufortSea_Print.jpg",
                            "filename": "BeaufortSea_Print.jpg",
                            "media_type": "Image",
                            "alt_text": "An near-infrared-color Landsat time series of Alaska’s Beaufort Sea coastline, spanning 1985 to 2024, showing coastal erosion and changes to the shoreline over time.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                },
                {
                    "id": 521340,
                    "type": "details_page",
                    "extra_data": null,
                    "instance": {
                        "id": 15024,
                        "url": "https://svs.gsfc.nasa.gov/15024/",
                        "page_type": "Visualization",
                        "title": "Deforestation in Santa Cruz, Bolivia",
                        "description": "Forty decades of agricultural expansion in Bolivia have completely transformed the landscape. This time series zooms in on a region east of Santa Cruz, where soybean producers cleared tropical dry forests to make way for farms. The broad green expanse is replaced with striking geometric patterns of rectangular fields, protective windbreaks, and radial settlements.",
                        "release_date": "2026-05-06T12:00:00-04:00",
                        "update_date": "2026-05-06T15:52:53.558845-04:00",
                        "main_image": {
                            "id": 1203683,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015024/SantaCruz_Print.jpg",
                            "filename": "SantaCruz_Print.jpg",
                            "media_type": "Image",
                            "alt_text": "A natural-color Landsat time series of Santa Cruz, Bolivia, spanning from 1985 to 2025, showing extensive deforestation in the region.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                },
                {
                    "id": 521341,
                    "type": "details_page",
                    "extra_data": null,
                    "instance": {
                        "id": 15025,
                        "url": "https://svs.gsfc.nasa.gov/15025/",
                        "page_type": "Visualization",
                        "title": "Saudi Arabia’s Desert Agriculture",
                        "description": "In this animation, crop fields in Saudi Arabia cycle through their growing seasons. Corn, barley, sorghum, and wheat—Saudi Arabia’s four main crops—all follow different crop calendars, but the bulk of the harvesting occurs in late spring and early summer. The time series spans 2024 and January 2025.",
                        "release_date": "2026-05-06T12:00:00-04:00",
                        "update_date": "2026-05-06T15:55:51.996215-04:00",
                        "main_image": {
                            "id": 1203718,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015025/SaudiArabia_Print.jpg",
                            "filename": "SaudiArabia_Print.jpg",
                            "media_type": "Image",
                            "alt_text": "An infrared-color Landsat time series of crop fields in Saudi Arabia, spanning 2024 to January 2025, showing seasonal vegetation cycles with near-infrared, red, and green light.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                },
                {
                    "id": 521342,
                    "type": "details_page",
                    "extra_data": null,
                    "instance": {
                        "id": 15026,
                        "url": "https://svs.gsfc.nasa.gov/15026/",
                        "page_type": "Visualization",
                        "title": "Deforestation in Paraguay’s Gran Chaco",
                        "description": "This animation shows the progression of deforestation in the Paraguayan Chaco from 1985 to 2025 using natural-color images from Landsat satellites. Research using Landsat imagery found that 27% of the Paraguayan Chaco disappeared between 1987 and 2012. Another study found that Dry Chaco forest cover decreased by 20.2% between 2000 and 2019, with Paraguay’s forest experiencing the highest levels of loss.",
                        "release_date": "2026-05-06T12:00:00-04:00",
                        "update_date": "2026-05-06T15:58:58.023436-04:00",
                        "main_image": {
                            "id": 1203726,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015026/GranChaco_Print.jpg",
                            "filename": "GranChaco_Print.jpg",
                            "media_type": "Image",
                            "alt_text": "A natural-color Landsat time series of the Chaco region in Paraguay, spanning 1985 to 2025, showing extensive deforestation and land cover changes over four decades.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                },
                {
                    "id": 521343,
                    "type": "details_page",
                    "extra_data": null,
                    "instance": {
                        "id": 15027,
                        "url": "https://svs.gsfc.nasa.gov/15027/",
                        "page_type": "Visualization",
                        "title": "Undamming the Klamath",
                        "description": "Between October 2023 and October 2024, the four dams comprising the Klamath Hydroelectric Project were taken down. Gates opened, dams were blasted apart, reservoir drawdown began. The result, at first, was a rush of sediment that muddied the waters of the Klamath River. As the river flowed toward the Pacific Ocean, water levels lowered, exposing previously submerged land to sunlight.",
                        "release_date": "2026-05-06T12:00:00-04:00",
                        "update_date": "2026-05-06T16:01:58.311750-04:00",
                        "main_image": {
                            "id": 1203730,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015027/Klamath_Print.jpg",
                            "filename": "Klamath_Print.jpg",
                            "media_type": "Image",
                            "alt_text": "A natural-color Landsat time series of the Klamath River from 2023 to 2025, showing reservoirs draining and sediment surging as four dams were removed, reopening salmon habitat for the first time in a century.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                },
                {
                    "id": 521344,
                    "type": "details_page",
                    "extra_data": null,
                    "instance": {
                        "id": 15029,
                        "url": "https://svs.gsfc.nasa.gov/15029/",
                        "page_type": "Visualization",
                        "title": "Fluctuations in Egypt’s Lake Nasser",
                        "description": "Egypt’s Lake Nasser is one of the world’s largest man-made lakes, stretching over 300 miles long and 10 miles wide. This time series shows Landsat’s view of Lake Nasser’s transformation between 1972 and 2024, during which the lake’s water levels fluctuate dramatically due to the region’s arid climate and seasonal rainfall. High evaporation rates in the dry season can cause the lake to shrink, while flooding seasons can bring the water levels to a high point. ||",
                        "release_date": "2026-05-06T12:00:00-04:00",
                        "update_date": "2026-05-06T16:07:20.910543-04:00",
                        "main_image": {
                            "id": 1203742,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015029/15029---Lake-Nasser_print.jpg",
                            "filename": "15029---Lake-Nasser_print.jpg",
                            "media_type": "Image",
                            "alt_text": "A natural-color Landsat time series of Egypt’s Lake Nasser from 1972 to 2024, showing annual fluctuations in water levels caused by seasonal rainfall and evaporation in the arid region.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                },
                {
                    "id": 521345,
                    "type": "details_page",
                    "extra_data": null,
                    "instance": {
                        "id": 15030,
                        "url": "https://svs.gsfc.nasa.gov/15030/",
                        "page_type": "Visualization",
                        "title": "The Retreat of Alaska’s Mendenhall Glacier",
                        "description": "From 1986 to 2024, the Mendenhall Glacier retreated by about a mile and in some places thinned by 2,000 feet. This Landsat time series uses infrared bands to differentiate ice, rocks, soil, and vegetation. Although Mendenhall’s retreat began centuries ago, warming has accelerated its decline. The Juneau Icefield, Mendenhall’s source, lost 63 of 1,050 glaciers and 10% of its ice between 2005 and 2019.",
                        "release_date": "2026-05-06T12:00:00-04:00",
                        "update_date": "2026-05-06T16:10:20.040790-04:00",
                        "main_image": {
                            "id": 1203748,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015030/15030---Mendenhall-Glacier_print.jpg",
                            "filename": "15030---Mendenhall-Glacier_print.jpg",
                            "media_type": "Image",
                            "alt_text": "An infrared-color Landsat time series of Alaska’s Mendenhall Glacier, spanning from 1986 to 2024, showing its retreat of nearly a mile and thinning of up to 2,000 feet as warming accelerates ice loss.",
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                },
                {
                    "id": 521346,
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                        "id": 15034,
                        "url": "https://svs.gsfc.nasa.gov/15034/",
                        "page_type": "Visualization",
                        "title": "Braided River in Tibet Redraws Its Channels",
                        "description": "This Landsat time series shows the channels of Tibet’s Yarlung Zangbo river shifting substantially from year to year due to high sediment discharge from nearby steep mountains. Flooding events frequently remobilize the steady accumulation of loose, coarse sediment, preventing vegetation from becoming established on the sandbars.",
                        "release_date": "2026-05-06T12:00:00-04:00",
                        "update_date": "2026-05-06T16:20:03.277099-04:00",
                        "main_image": {
                            "id": 1203773,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015034/15034---Braided-River_print.jpg",
                            "filename": "15034---Braided-River_print.jpg",
                            "media_type": "Image",
                            "alt_text": "A natural-color Landsat time series of the Yarlung Zangbo River from 1988 to 2025 revealing the shapeshifting nature of the river as it flows across the Tibetan Plateau.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
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                    }
                },
                {
                    "id": 521347,
                    "type": "details_page",
                    "extra_data": null,
                    "instance": {
                        "id": 15035,
                        "url": "https://svs.gsfc.nasa.gov/15035/",
                        "page_type": "Visualization",
                        "title": "Forty Years of Change in Louisiana’s Wetlands",
                        "description": "Louisiana's coastline is on the move. Utilizing infrared-color imagery to contrast water and vegetation, this Landsat time series tracks 40 years of dynamic shifts across Louisiana’s fragile coast. From abrupt hurricane-induced flooding to the gradual, permanent drowning of vital marshes, these visualizations capture an ecosystem in perpetual motion.",
                        "release_date": "2026-05-06T12:00:00-04:00",
                        "update_date": "2026-05-06T16:22:12.642637-04:00",
                        "main_image": {
                            "id": 1203790,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015035/15035---Louisiana-Wetlands_print.jpg",
                            "filename": "15035---Louisiana-Wetlands_print.jpg",
                            "media_type": "Image",
                            "alt_text": "A infrared-color Landsat time series of Louisiana’s Bay Dosgris from 1985 to 2024, showing wetlands converting to open water as sea level rise and storms reshape the Gulf Coast.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                }
            ],
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        {
            "id": 380291,
            "url": "https://svs.gsfc.nasa.gov/15039/#media_group_380291",
            "widget": "Tile gallery",
            "title": "HLS (Harmonized Landsat and Sentinel-2) Time Series",
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            "items": [
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                    "id": 521348,
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                    "instance": {
                        "id": 15036,
                        "url": "https://svs.gsfc.nasa.gov/15036/",
                        "page_type": "Visualization",
                        "title": "Lithium Ponds of Tibet’s Lake Zabuye",
                        "description": "Lake Zabuye, located high on the Tibetan Plateau, is a hypersaline, alkaline lake that holds some of the world's highest concentrations of lithium. In this remote, arid, and cold environment, mining operations pump mineral-rich underground brines into shallow surface pools.",
                        "release_date": "2026-05-06T12:00:00-04:00",
                        "update_date": "2026-05-06T16:24:42.027548-04:00",
                        "main_image": {
                            "id": 1203785,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015036/15036---Lake-Zabuye_print.jpg",
                            "filename": "15036---Lake-Zabuye_print.jpg",
                            "media_type": "Image",
                            "alt_text": "A natural-color HLS time series of Tibet’s Lake Zabuye spanning from February 26, 2025, to March 1, 2026, revealing the evaporation and shifting colors of its lithium ponds over time.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                },
                {
                    "id": 521349,
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                    "instance": {
                        "id": 15006,
                        "url": "https://svs.gsfc.nasa.gov/15006/",
                        "page_type": "Visualization",
                        "title": "Lithium Ponds of Chile's Salar de Atacama",
                        "description": "Chile’s largest salt flat, Salar de Atacama, produces a significant portion of the global lithium supply. The desert receives just millimeters of rain annually, making it one of the driest places on Earth. Local mines harness the harsh desert sun to evaporate underground brines to access lithium. This HLS (Harmonized Landsat and Sentinel-2) sequence showcases shifting colors as water slowly vanishes to concentrate the critical mineral.",
                        "release_date": "2026-04-28T00:00:00-04:00",
                        "update_date": "2026-05-06T14:36:57.510448-04:00",
                        "main_image": {
                            "id": 1203373,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015006/SalarDeAtacama_Print.jpg",
                            "filename": "SalarDeAtacama_Print.jpg",
                            "media_type": "Image",
                            "alt_text": "A natural-color HLS time series of Chile’s Salar de Atacama spanning from March 3, 2025 to February 21, 2026, revealing the evaporation and shifting colors of its lithium ponds over time.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                },
                {
                    "id": 521350,
                    "type": "details_page",
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                    "instance": {
                        "id": 15018,
                        "url": "https://svs.gsfc.nasa.gov/15018/",
                        "page_type": "Visualization",
                        "title": "Agricultural Cycles in the Imperial Valley",
                        "description": "This page features HLS (Harmonized Landsat and Sentinel-2) time series of California’s Imperial Valley near the Salton Sea. Spanning October 2024 to October 2025, these animations highlight multiple agricultural growth cycles within a single year using natural color, NDVI, and a side-by-side comparison.",
                        "release_date": "2026-05-06T11:00:00-04:00",
                        "update_date": "2026-05-06T15:20:12.155538-04:00",
                        "main_image": {
                            "id": 1203622,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015018/ImperialValley_NaturalColor_Print.jpg",
                            "filename": "ImperialValley_NaturalColor_Print.jpg",
                            "media_type": "Image",
                            "alt_text": "A natural-color HLS time series of the Imperial Valley near the Salton Sea, spanning October 2024 to October 2025, showing dramatic seasonal changes driven by agricultural growth cycles.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                },
                {
                    "id": 521351,
                    "type": "details_page",
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                    "instance": {
                        "id": 15028,
                        "url": "https://svs.gsfc.nasa.gov/15028/",
                        "page_type": "Visualization",
                        "title": "Harmful Algal Blooms in California’s Pyramid Lake",
                        "description": "Green algae swirls across the blue waters of Nevada’s Pyramid Lake. This time series of Harmonized Landsat and Sentinel-2 (HLS) imagery from August 28 to November 6, 2024 shows the explosive growth and decline of these blooms, which form when a flood of nutrients meets warm water and abundant sunlight. Under these conditions, toxic cyanobacteria can multiply rapidly, releasing liver-damaging toxins that threaten public health.",
                        "release_date": "2026-05-06T12:00:00-04:00",
                        "update_date": "2026-05-06T16:05:24.379995-04:00",
                        "main_image": {
                            "id": 1203736,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015028/15028---Pyramid-Lake_print.jpg",
                            "filename": "15028---Pyramid-Lake_print.jpg",
                            "media_type": "Image",
                            "alt_text": "A natural-color HLS time series of Pyramid Lake's algal bloom formation, spanning from August 28 to November 6, 2024, documenting the development, peak intensity, and decline of the bloom across the water.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                },
                {
                    "id": 521352,
                    "type": "details_page",
                    "extra_data": null,
                    "instance": {
                        "id": 15031,
                        "url": "https://svs.gsfc.nasa.gov/15031/",
                        "page_type": "Visualization",
                        "title": "Seasons Change in Southwest Virginia",
                        "description": "The animation showcases the Valley and Ridge province of the Appalachian Mountains, named for its characteristic parallel ridges and valleys. When the supercontinent Pangea formed, the region was compressed, one of the factors producing this folded landscape.The region’s forests, largely deciduous, undergo color change in the fall before shedding their leaves. Certain species change color earlier, while others lose their green pigment later in the season.",
                        "release_date": "2026-05-06T12:00:00-04:00",
                        "update_date": "2026-05-06T16:14:12.192901-04:00",
                        "main_image": {
                            "id": 1203754,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015031/15031---Southwest-Virginia_print.jpg",
                            "filename": "15031---Southwest-Virginia_print.jpg",
                            "media_type": "Image",
                            "alt_text": "A natural-color HLS time series of southwest Virginia's forests, spanning from October 4 to December 6, 2025, showing the dramatic seasonal transformation as lush summer landscapes fade through fall and into winter across the Appalachian Mountains.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                },
                {
                    "id": 521353,
                    "type": "details_page",
                    "extra_data": null,
                    "instance": {
                        "id": 15032,
                        "url": "https://svs.gsfc.nasa.gov/15032/",
                        "page_type": "Visualization",
                        "title": "Plants and Algae Swirl Across a South African Reservoir",
                        "description": "On clear days in Hartbeespoort, South Africa, Landsat and Sentinel-2 images often reveal a reservoir with shades of deep blue interrupted by drifting patches of vivid green. Over the years, these shifting features have included algae blooms—which can affect water quality, ecosystems, and nearby human communities—along with several types of invasive aquatic plants. ||",
                        "release_date": "2026-05-06T12:00:00-04:00",
                        "update_date": "2026-05-06T16:17:01.680623-04:00",
                        "main_image": {
                            "id": 1203760,
                            "url": "https://svs.gsfc.nasa.gov/vis/a010000/a015000/a015032/15032---Hartbeespoort-Dam_print.jpg",
                            "filename": "15032---Hartbeespoort-Dam_print.jpg",
                            "media_type": "Image",
                            "alt_text": "A natural-color HLS time series showing vivid green blooms forming, drifting, and fading in Hartbeespoort Dam over the course of a year.",
                            "width": 1280,
                            "height": 720,
                            "pixels": 921600
                        }
                    }
                }
            ],
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        }
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    "credits": [
        {
            "role": "Visualizer",
            "people": [
                {
                    "name": "Ross K. Walter",
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    "missions": [
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        "Landsat 9",
        "LDCM: Landsat Data Continuity Mission"
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    "datasets": [],
    "nasa_science_categories": [
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}