{
 "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": "Easter", "series": "Plates", "artist": "Kenny Lienhard", "year": 2026, "plate": "42 of 52", "palette": "opal"},
 "plate": {"name": "Easter", "code": "EA", "model": "PB2002 (Bird 2003)", "class": "micro", "area_km2": 166982, "centroid_lat_lon": [-24.568, -113.93], "ocean_share": 1.0, "land_share": 0.0},
 "motion": {"frame": "no-net-rotation", "euler_pole_lat_lon": [25.189, 67.4774], "rotation_deg_per_million_years": 11.33693, "speed_mm_per_year_at_centroid": 31.23, "heading_deg_at_centroid": 26.2, "speed_range_mm_per_year": [0.0, 78.94], "the_artwork_drifts": "31.23 mm a year along its cut, one frame of rock every 19227 years"},
 "cover": {"deep ocean": 0.6876, "slope and ridge": 0.3124},
 "palette_from": ["deep ocean", "ocean"],
 "era": null,
 "past": {"account": "The past. The Easter plate is all deep ocean, nowhere shallower than about 1,000 metres, so when the ice age sea stood about 130 metres lower none of it became land, and the winter sea ice stayed more than 3,000 kilometres to the south. A global reconstruction puts the sea surface here about 4 degrees colder at the glacial peak, near 19 degrees, warming mostly between about 15,800 and 6,800 years ago. Easter Island itself lies 326 kilometres to the east, on the Nazca plate.", "source": "Lambeck et al. 2014, PNAS 111:15296; Lhardy et al. 2021, Climate of the Past 17:1139; Osman et al. 2021, Nature 599:239"},
 "history": [{"years_ago": 5250000, "range_years_ago": [5250000, 4500000], "what": "This microplate was born when a new spreading rift began to push north beside the East Pacific Rise.", "source": "Rusby and Searle 1995, Journal of Geophysical Research 100:12617, doi:10.1029/94JB02779; Naar and Hey 1991, Journal of Geophysical Research 96:7961, doi:10.1029/90JB02398"}],
 "outline_lon_lat": [[[-114.12, -22.11], [-114.42, -22.11], [-114.5, -22.2], [-114.5, -22.54], [-114.57, -23.02], [-114.88, -23.04], [-114.96, -23.18], [-115.18, -23.24], [-115.25, -23.4], [-115.6, -23.47], [-115.42, -23.88], [-115.4, -24.02], [-115.48, -24.11], [-115.91, -24.24], [-115.97, -24.38], [-116.18, -24.46], [-116.22, -24.56], [-116.1, -24.85], [-116.49, -25.17], [-116.35, -25.42], [-116.03, -25.67], [-115.77, -25.97], [-115.52, -26.24], [-115.29, -26.47], [-115.11, -26.6], [-114.53, -26.73], [-113.94, -26.79], [-113.61, -26.81], [-112.98, -26.83], [-112.95, -26.72], [-112.68, -26.8], [-112.66, -26.55], [-112.68, -26.28], [-112.67, -26.04], [-112.62, -25.93], [-112.55, -25.93], [-112.54, -25.79], [-112.45, -25.79], [-112.44, -25.68], [-112.36, -25.66], [-112.37, -25.56], [-112.39, -25.43], [-112.44, -25.2], [-112.45, -25.06], [-111.98, -25.03], [-111.98, -24.89], [-112.05, -24.66], [-112.1, -24.45], [-112.12, -24.22], [-112.1, -24.11], [-111.71, -24.03], [-111.76, -23.86], [-111.83, -23.73], [-111.86, -23.48], [-111.87, -23.33], [-111.74, -23.21], [-111.92, -23.02], [-112.21, -22.82], [-112.58, -22.62], [-112.93, -22.41], [-113.28, -22.22], [-113.61, -22.13], [-113.91, -22.1], [-114.12, -22.11]]],
 "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"
}