{
 "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": "Panama", "series": "Plates", "artist": "Kenny Lienhard", "year": 2026, "plate": "37 of 52", "palette": "serpentine"},
 "plate": {"name": "Panama", "code": "PM", "model": "PB2002 (Bird 2003)", "class": "micro", "area_km2": 273735, "centroid_lat_lon": [8.944, -81.123], "ocean_share": 0.5947, "land_share": 0.4053},
 "motion": {"frame": "no-net-rotation", "euler_pole_lat_lon": [29.8376, -109.7487], "rotation_deg_per_million_years": 0.3109, "speed_mm_per_year_at_centroid": 19.31, "heading_deg_at_centroid": 41.9, "speed_range_mm_per_year": [16.82, 21.02], "the_artwork_drifts": "19.31 mm a year along its cut, one frame of rock every 22281 years"},
 "cover": {"slope and ridge": 0.3126, "shelf sea": 0.2436, "rainforest": 0.2354, "grassland": 0.0728, "cropland": 0.0543, "deep ocean": 0.0385, "forest": 0.0322, "lakes and rivers": 0.0056, "towns": 0.0029, "boreal forest": 0.0013, "wetland": 0.0004, "desert": 0.0002, "tundra": 0.0001},
 "palette_from": ["jungle", "grassland", "farmland"],
 "era": {"name": "The wide isthmus", "what": "Low seas, the Gulf of Panama dry land", "arrives_years_before_2026": [30100, 30000], "leaves_years_before_2026": [14536, 8056], "account": "The past. With the sea about 120 metres lower, more than a third of this plate’s sea was dry land, and more of the plate was land than sea. The Gulf of Panama was a wide plain where the Pearl Islands stood as hills, Coiba was joined to the coast, and near the canal the isthmus was about three times as wide as today. The land was already dry when the timeline begins; the rising sea drowned most of it between 14,536 and 8,056 years ago. The lines that stand for the sea turn to the colour of land, all at once, and only across those spans.", "source": "Lambeck et al. 2014, PNAS 111:15296; Golik 1968, Journal of Geology 76:497; Martinez-Polanco et al. 2022, Journal of Archaeological Science 143:105613"},
 "history": [{"years_ago": 24000000, "range_years_ago": [25000000, 23000000], "what": "This arc began to collide with South America.", "source": "Farris et al. 2011, Geology 39:1007, doi:10.1130/G32237.1"}, {"years_ago": 2800000, "range_years_ago": [2940000, 2660000], "what": "The Isthmus of Panama closed, joining North and South America by land.", "source": "O'Dea et al. 2016, Science Advances 2:e1600883, doi:10.1126/sciadv.1600883"}],
 "outline_lon_lat": [[[-76.91, 8.44], [-76.68, 8.73], [-76.77, 9.06], [-76.92, 9.38], [-77.08, 9.63], [-77.29, 9.9], [-77.5, 10.1], [-77.68, 10.27], [-77.92, 10.43], [-78.13, 10.55], [-78.23, 10.61], [-78.43, 10.64], [-78.75, 10.65], [-78.97, 10.58], [-79.15, 10.48], [-79.23, 10.41], [-79.43, 10.43], [-79.75, 10.39], [-80.11, 10.3], [-80.36, 10.27], [-80.64, 10.15], [-80.88, 10.06], [-81.08, 9.94], [-81.31, 9.78], [-81.47, 9.59], [-81.65, 9.44], [-82.08, 9.44], [-82.31, 9.51], [-82.52, 9.6], [-82.8, 9.77], [-83.02, 9.87], [-83.21, 10.05], [-83.46, 10.21], [-83.78, 10.32], [-84.07, 10.45], [-84.42, 10.54], [-84.75, 10.59], [-85.12, 10.65], [-85.43, 10.63], [-85.72, 10.57], [-85.97, 10.49], [-86.25, 10.39], [-86.65, 10.23], [-86.45, 9.94], [-86.2, 9.68], [-85.91, 9.42], [-85.61, 9.2], [-85.38, 9.09], [-85.04, 8.94], [-84.69, 8.77], [-84.42, 8.64], [-84.16, 8.47], [-84.01, 8.3], [-83.84, 8.18], [-83.61, 8.04], [-83.36, 7.93], [-83.23, 7.85], [-83.07, 7.59], [-82.87, 7.37], [-82.81, 7.3], [-82.75, 7.28], [-82.69, 7.28], [-82.62, 7.31], [-82.49, 7.3], [-82.34, 7.25], [-82.27, 7.13], [-82.2, 7.04], [-82.13, 7.01], [-82.09, 6.97], [-81.94, 6.95], [-81.89, 6.98], [-81.74, 7.06], [-81.58, 7.04], [-81.49, 7.06], [-81.34, 7.1], [-81.16, 7.17], [-81.04, 7.22], [-80.89, 7.29], [-80.78, 7.36], [-80.69, 7.42], [-80.54, 7.34], [-80.36, 7.22], [-80.25, 7.13], [-80.1, 7.1], [-79.85, 7.16], [-79.66, 7.18], [-79.47, 7.23], [-79.24, 7.3], [-78.98, 7.32], [-78.75, 7.33], [-78.65, 7.34], [-78.23, 7.51], [-78.01, 7.64], [-77.71, 7.83], [-77.53, 8.01], [-77.33, 8.1], [-77.15, 8.19], [-76.91, 8.44]]],
 "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"
}