{
 "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": "South Bismarck", "series": "Plates", "artist": "Kenny Lienhard", "year": 2026, "plate": "36 of 52", "palette": "serpentine"},
 "plate": {"name": "South Bismarck", "code": "SB", "model": "PB2002 (Bird 2003)", "class": "micro", "area_km2": 309093, "centroid_lat_lon": [-5.059, 148.733], "ocean_share": 0.767, "land_share": 0.233},
 "motion": {"frame": "no-net-rotation", "euler_pole_lat_lon": [6.8837, -31.6751], "rotation_deg_per_million_years": 8.13029, "speed_mm_per_year_at_centroid": 29.5, "heading_deg_at_centroid": 102.5, "speed_range_mm_per_year": [0.0, 89.85], "the_artwork_drifts": "29.5 mm a year along its cut, one frame of rock every 19618 years"},
 "cover": {"slope and ridge": 0.6106, "rainforest": 0.1935, "deep ocean": 0.097, "shelf sea": 0.0481, "forest": 0.0175, "cropland": 0.0136, "ocean trench": 0.0112, "grassland": 0.0049, "lakes and rivers": 0.0017, "boreal forest": 0.0011, "bare rock": 0.0003, "towns": 0.0002, "tundra": 0.0001},
 "palette_from": ["jungle", "ocean", "forest"],
 "era": {"name": "Low seas", "what": "Low seas, New Britain’s shelves dry land", "arrives_years_before_2026": [30100, 30000], "leaves_years_before_2026": [15777, 7615], "account": "The past. With the sea about 120 metres lower, some 10,000 square kilometres of this plate’s shallow seas were dry land, half of it around West New Britain. New Britain was about a quarter larger, and on today’s seabed it reached across the Siassi shelf to Umboi. The land was already dry when the timeline begins; the rising sea drowned most of it between 15,777 and 7,615 years ago. The raised coral reefs of the Huon Peninsula record that rise, on a coast that great earthquakes still lift by about 3 metres every thousand years or so. The lines that stand for the sea turn about a third of the way to the colour of land, all at once, and only across those spans.", "source": "Lambeck et al. 2014, PNAS 111:15296; Edwards et al. 1993, Science 260:962; Ota and Chappell 1996, Journal of Geophysical Research 101:6071"},
 "history": [{"years_ago": 3500000, "range_years_ago": [3675000, 3325000], "what": "The Manus Basin began to open along this plate's northern edge.", "source": "Taylor 1979, Geology 7:171, doi:10.1130/0091-7613(1979)7<171:BSEOAB>2.0.CO;2"}],
 "outline_lon_lat": [[[147.48, -7.1], [148.01, -7.31], [148.59, -7.39], [149.31, -7.03], [149.86, -6.94], [150.15, -6.88], [150.66, -6.69], [151.15, -6.44], [151.52, -6.21], [151.88, -5.93], [152.26, -5.75], [152.65, -5.64], [153.11, -5.74], [153.52, -5.95], [153.93, -6.26], [153.82, -6.05], [153.61, -5.7], [153.4, -5.36], [153.19, -5.02], [152.93, -4.6], [152.66, -4.19], [152.62, -4.13], [152.56, -4.04], [152.48, -3.97], [152.41, -3.9], [152.33, -3.82], [152.23, -3.74], [152.13, -3.67], [152.04, -3.64], [151.99, -3.65], [151.93, -3.68], [151.81, -3.72], [151.68, -3.77], [151.56, -3.67], [151.43, -3.75], [151.38, -3.71], [151.3, -3.66], [151.22, -3.74], [151.09, -3.81], [150.99, -3.69], [150.91, -3.72], [150.79, -3.77], [150.68, -3.82], [150.55, -3.84], [150.45, -3.86], [150.32, -3.88], [150.24, -3.9], [150.23, -3.87], [150.19, -3.83], [150.12, -3.79], [150.03, -3.75], [149.94, -3.72], [149.87, -3.66], [149.82, -3.62], [149.82, -3.62], [149.77, -3.59], [149.72, -3.58], [149.6, -3.57], [149.45, -3.54], [149.29, -3.52], [149.09, -3.47], [148.88, -3.39], [148.68, -3.31], [148.5, -3.22], [148.33, -3.14], [148.12, -3.03], [147.98, -2.92], [147.82, -2.81], [147.6, -2.88], [147.54, -2.88], [147.48, -2.91], [147.41, -2.96], [147.32, -3.05], [147.24, -3.15], [147.16, -3.26], [147.08, -3.39], [147.0, -3.51], [146.92, -3.64], [146.84, -3.75], [146.41, -3.44], [146.11, -3.47], [145.4, -3.49], [144.81, -3.55], [144.37, -3.53], [143.74, -3.46], [144.08, -3.77], [144.42, -4.0], [144.58, -4.38], [144.73, -4.7], [144.87, -4.97], [145.01, -5.2], [145.5, -5.76], [146.01, -6.11], [146.5, -6.51], [146.96, -6.72], [147.48, -7.1]]],
 "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"
}