{
 "about": "The record of this Plate: the facts it is drawn from, kept inside the work. Plain JSON; the artwork does not read it. CC0 1.0, no rights reserved.",
 "work": {"title": "Yangtze", "series": "Plates", "artist": "Kenny Lienhard", "year": 2026, "plate": "18 of 52", "palette": "citrine"},
 "plate": {"name": "Yangtze", "code": "YA", "model": "PB2002 (Bird 2003)", "class": "minor", "area_km2": 2201940, "centroid_lat_lon": [27.256, 116.184], "ocean_share": 0.3375, "land_share": 0.6625},
 "motion": {"frame": "no-net-rotation", "euler_pole_lat_lon": [66.1602, -151.2719], "rotation_deg_per_million_years": 0.38577, "speed_mm_per_year_at_centroid": 39.26, "heading_deg_at_centroid": 116.2, "speed_range_mm_per_year": [35.94, 41.45], "the_artwork_drifts": "39.26 mm a year along its cut, one frame of rock every 17602 years"},
 "cover": {"cropland": 0.3183, "forest": 0.2518, "shelf sea": 0.2514, "slope and ridge": 0.0861, "grassland": 0.0561, "towns": 0.0193, "lakes and rivers": 0.0144, "wetland": 0.0026, "desert": 0.0001},
 "palette_from": ["farmland", "forest", "shallow sea"],
 "era": {"name": "The East China Sea plain", "what": "Low seas, the shelf dry and Taiwan joined to the mainland", "arrives_years_before_2026": [30100, 30000], "leaves_years_before_2026": [15716, 8566], "account": "The past. With the sea about 120 metres lower, about half a million square kilometres of this plate’s shallow seas were dry land, two thirds of its sea. The coast of the East China Sea lay near the edge of the shelf, about 500 kilometres east of today’s, the Yangtze built its delta far out on what is now seabed, and Taiwan was joined to the mainland. The plain was already largely dry when the timeline begins; the rising sea drowned most of it between 15,716 and 8,566 years ago. The lines that stand for the shallow sea turn the colour of land, all at once, and only across those spans.", "source": "Lambeck et al. 2014, PNAS 111:15296; Saito 1998, The Quaternary Research 37:235; Wang et al. 2022, Frontiers in Marine Science 9:863245; Dai et al. 2023, Journal of Marine Science and Engineering 11:2035; Chang et al. 2015, Nature Communications 6:6037"},
 "history": [{"years_ago": 830000000, "range_years_ago": [860000000, 805000000], "what": "Two old continental blocks collided and joined to form South China.", "source": "Xia et al. 2018, Precambrian Research 309:56, doi:10.1016/j.precamres.2017.02.020; Zhao and Cawood 2012, Precambrian Research 222-223:13, doi:10.1016/j.precamres.2012.09.017"}, {"years_ago": 232000000, "range_years_ago": [245000000, 219000000], "what": "South China collided with North China, dragging some rocks to mantle depths before they rose back to the surface.", "source": "Hacker et al. 1998, Earth and Planetary Science Letters 161:215, doi:10.1016/S0012-821X(98)00152-6"}],
 "outline_lon_lat": [[[113.76, 18.86], [114.0, 18.44], [114.42, 18.83], [114.93, 19.34], [115.49, 19.69], [116.32, 19.82], [117.14, 19.94], [117.5, 20.33], [117.86, 20.72], [118.05, 21.5], [118.48, 22.11], [118.96, 22.0], [119.62, 22.27], [120.04, 21.95], [120.45, 21.63], [120.42, 22.04], [120.39, 22.58], [120.36, 23.2], [120.55, 23.98], [120.98, 24.65], [121.33, 24.96], [121.58, 24.69], [122.02, 24.85], [122.55, 25.06], [123.18, 24.86], [123.72, 24.9], [123.75, 25.02], [124.15, 25.07], [124.7, 25.12], [124.7, 25.48], [125.16, 25.57], [125.74, 25.64], [125.66, 25.93], [126.06, 26.12], [126.38, 26.37], [126.48, 26.54], [126.82, 26.81], [126.75, 27.01], [126.89, 27.15], [127.42, 27.49], [127.35, 27.66], [127.6, 27.79], [128.05, 28.05], [128.56, 28.4], [128.32, 28.71], [128.69, 29.03], [129.06, 29.36], [128.65, 29.89], [128.88, 30.1], [128.85, 30.39], [129.03, 30.59], [128.82, 31.02], [129.06, 31.26], [129.12, 31.41], [129.44, 31.79], [128.81, 31.6], [128.26, 31.47], [127.66, 31.36], [127.05, 31.27], [126.4, 31.23], [125.73, 31.2], [125.03, 31.2], [124.49, 31.25], [123.87, 31.33], [123.36, 31.47], [122.78, 31.5], [122.19, 31.53], [121.61, 31.56], [121.03, 31.58], [120.37, 31.39], [119.71, 31.2], [119.0, 31.38], [118.58, 31.78], [118.15, 32.18], [117.72, 32.57], [117.28, 32.97], [116.52, 33.59], [115.75, 34.21], [114.96, 34.83], [114.28, 34.84], [113.6, 34.85], [113.25, 34.47], [112.91, 34.08], [112.27, 33.46], [111.65, 32.84], [111.61, 31.66], [111.21, 31.25], [110.81, 30.84], [109.88, 30.57], [108.96, 30.29], [108.04, 30.0], [107.13, 29.71], [106.26, 29.25], [105.4, 28.79], [105.17, 28.33], [104.94, 27.88], [105.18, 27.12], [105.42, 26.35], [105.72, 25.8], [106.02, 25.24], [106.58, 24.65], [107.13, 24.05], [107.68, 23.46], [108.56, 23.14], [109.44, 22.82], [110.31, 22.5], [111.17, 22.17], [112.04, 21.83], [112.29, 21.41], [112.54, 20.98], [112.78, 20.56], [113.03, 20.14], [113.27, 19.71], [113.52, 19.29], [113.76, 18.86]]],
 "sources": ["Plate outlines and motion: Bird, P. (2003). An updated digital model of plate boundaries. Geochemistry, Geophysics, Geosystems 4(3), 1027, doi:10.1029/2001GC000252. No-net-rotation frame computed from PB2002 alone.", "What covers each plate: ESA CCI Land Cover and Water Bodies, NOAA ETOPO 2022, Koppen-Geiger climate maps, NSIDC Sea Ice Index, on a 1 arc-minute grid."],
 "engine_sha256": "a7fbc03acc0fc9ba343881bb88ddaf2b7564564d8bc9cbed16e75e47e01fb3f2"
}