{
 "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": "Niuafo'ou", "series": "Plates", "artist": "Kenny Lienhard", "year": 2026, "plate": "45 of 52", "palette": "opal"},
 "plate": {"name": "Niuafo'ou", "code": "NI", "model": "PB2002 (Bird 2003)", "class": "micro", "area_km2": 124282, "centroid_lat_lon": [-16.692, -175.664], "ocean_share": 0.9996, "land_share": 0.0004},
 "motion": {"frame": "no-net-rotation", "euler_pole_lat_lon": [-3.3228, -173.9507], "rotation_deg_per_million_years": 3.28344, "speed_mm_per_year_at_centroid": 85.07, "heading_deg_at_centroid": 97.4, "speed_range_mm_per_year": [69.91, 103.25], "the_artwork_drifts": "85.07 mm a year along its cut, one frame of rock every 11876 years"},
 "cover": {"slope and ridge": 0.9551, "deep ocean": 0.0432, "ocean trench": 0.0011, "rainforest": 0.0002, "shelf sea": 0.0001, "lakes and rivers": 0.0001, "cropland": 0.0001},
 "palette_from": ["ocean", "deep ocean", "ocean trench"],
 "era": null,
 "past": {"account": "The past. The Niuafo’ou plate is open sea, mostly 1.8 to 2.7 kilometres deep, so the ice age barely touched it: the glacial sea ice stayed about 4,500 kilometres to the south. With the sea up to 134 metres lower, a thin rim around Niuafo’ou island and a shoal 115 kilometres to its west stood dry, about 15 to 35 square kilometres in all. On the island, stromatolites in the crater lakes date back about 15,000 radiocarbon years, and the volcano has erupted at least 11 times since 1800, emptying the island in 1946.", "source": "Lhardy et al. 2021, Climate of the Past 17:1139; Lambeck et al. 2014, PNAS 111:15296; Kremer et al. 2012, Astrobiology 12:535; Taylor 1995, Journal of the Polynesian Society 104:323; Ryan et al. 2009, Geochemistry Geophysics Geosystems 10:Q03014; ETOPO 2022, NOAA NCEI"},
 "history": [{"years_ago": 5500000, "range_years_ago": [5775000, 5225000], "what": "The Lau Basin, where this microplate lies, began to open.", "source": "Ruellan et al. 2003, Geochemistry Geophysics Geosystems 4, doi:10.1029/2001GC000261"}],
 "outline_lon_lat": [[[-174.01, -14.77], [-173.91, -14.63], [-173.84, -14.53], [-174.08, -14.38], [-174.75, -14.33], [-175.31, -14.41], [-175.87, -14.48], [-176.35, -14.63], [-176.34, -14.78], [-176.32, -14.9], [-176.33, -15.05], [-176.34, -15.18], [-176.39, -15.31], [-176.46, -15.42], [-176.53, -15.49], [-176.66, -15.6], [-177.13, -15.56], [-177.25, -15.71], [-177.38, -15.81], [-177.49, -15.9], [-177.57, -15.96], [-177.63, -16.02], [-177.66, -16.11], [-177.68, -16.18], [-177.51, -16.32], [-177.36, -16.44], [-177.2, -16.57], [-177.07, -16.72], [-176.92, -16.88], [-176.82, -17.03], [-176.71, -17.22], [-176.62, -17.4], [-176.53, -17.57], [-176.46, -17.73], [-176.4, -17.87], [-176.3, -18.06], [-176.3, -18.13], [-176.33, -18.27], [-176.35, -18.31], [-176.44, -18.47], [-176.51, -18.6], [-176.55, -18.69], [-176.58, -18.77], [-176.59, -18.84], [-176.57, -18.98], [-176.55, -19.22], [-175.98, -19.39], [-175.21, -19.7], [-175.19, -19.46], [-175.16, -19.23], [-175.09, -19.0], [-175.03, -18.79], [-174.96, -18.6], [-174.87, -18.42], [-174.76, -18.23], [-174.66, -18.04], [-174.57, -17.84], [-174.56, -17.63], [-174.6, -17.61], [-174.57, -17.36], [-174.6, -17.32], [-174.56, -17.1], [-174.52, -17.07], [-174.53, -16.87], [-174.53, -16.74], [-174.58, -16.35], [-174.57, -16.2], [-174.57, -16.05], [-174.6, -15.94], [-174.87, -15.88], [-174.87, -15.74], [-174.82, -15.62], [-174.73, -15.47], [-174.67, -15.37], [-174.57, -15.25], [-174.26, -15.31], [-174.19, -15.13], [-174.14, -15.02], [-174.08, -14.89], [-174.01, -14.77]]],
 "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"
}