{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:49.597884", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2012-Nov-21_to_2012-Nov-28_146.0_-4.5"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2012110000787}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "November 21 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 28 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 55469.42127603042}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Papua New Guinea"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Equatorial.Pacific-Ocean", "S.E.Asia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": ["Bismarck Sea"]}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": -4.5}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 146.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "146.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 145.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 150.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -5.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -2.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-11-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.47, -5.03], [145.25, -4.5], [145.47, -3.97], [146.0, -3.75], [146.53, -3.97], [146.7, -4.37], [147.0, -4.25], [147.53, -4.47], [147.75, -5.0], [147.53, -5.53], [147.0, -5.75], [146.47, -5.53], [146.3, -5.13], [146.0, -5.25], [145.47, -5.03]]]]}, "2012-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.47, -5.03], [145.25, -4.5], [145.47, -3.97], [146.0, -3.75], [146.53, -3.97], [146.7, -4.37], [146.82, -4.32], [146.97, -3.97], [147.32, -3.82], [147.47, -3.47], [147.82, -3.32], [147.97, -2.97], [148.5, -2.75], [148.75, -2.85], [149.0, -2.75], [149.53, -2.97], [149.75, -3.5], [149.53, -4.03], [149.18, -4.18], [149.03, -4.53], [148.68, -4.68], [148.53, -5.03], [148.18, -5.18], [148.03, -5.53], [147.5, -5.75], [147.25, -5.65], [147.0, -5.75], [146.47, -5.53], [146.3, -5.13], [146.0, -5.25], [145.47, -5.03]]]]}, "2012-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.47, -5.03], [145.25, -4.5], [145.47, -3.97], [146.0, -3.75], [146.53, -3.97], [146.7, -4.37], [146.82, -4.32], [146.97, -3.97], [147.32, -3.82], [147.47, -3.47], [147.82, -3.32], [147.97, -2.97], [148.5, -2.75], [148.75, -2.85], [148.82, -2.82], [148.97, -2.47], [149.5, -2.25], [149.75, -2.35], [150.0, -2.25], [150.53, -2.47], [150.75, -3.0], [150.53, -3.53], [150.0, -3.75], [149.75, -3.65], [149.68, -3.68], [149.53, -4.03], [149.18, -4.18], [149.03, -4.53], [148.68, -4.68], [148.53, -5.03], [148.18, -5.18], [148.03, -5.53], [147.5, -5.75], [147.25, -5.65], [147.0, -5.75], [146.47, -5.53], [146.3, -5.13], [146.0, -5.25], [145.47, -5.03]]]]}, "2012-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.35, -4.75], [145.25, -4.5], [145.47, -3.97], [146.0, -3.75], [146.25, -3.85], [146.5, -3.75], [147.0, -3.96], [147.32, -3.82], [147.47, -3.47], [147.82, -3.32], [147.97, -2.97], [148.5, -2.75], [148.75, -2.85], [148.82, -2.82], [148.97, -2.47], [149.5, -2.25], [149.75, -2.35], [150.0, -2.25], [150.53, -2.47], [150.75, -3.0], [150.53, -3.53], [150.0, -3.75], [149.75, -3.65], [149.68, -3.68], [149.53, -4.03], [149.18, -4.18], [149.03, -4.53], [148.68, -4.68], [148.53, -5.03], [148.18, -5.18], [148.03, -5.53], [147.5, -5.75], [147.25, -5.65], [147.0, -5.75], [146.75, -5.65], [146.68, -5.68], [146.53, -6.03], [146.0, -6.25], [145.47, -6.03], [145.25, -5.5], [145.35, -5.25], [145.25, -5.0], [145.35, -4.75]]]]}, "2012-11-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.82, -4.32], [145.97, -3.97], [146.5, -3.75], [147.03, -3.97], [147.25, -4.5], [147.15, -4.75], [147.25, -5.0], [147.03, -5.53], [146.68, -5.68], [146.53, -6.03], [146.0, -6.25], [145.47, -6.03], [145.25, -5.5], [145.35, -5.25], [145.25, -5.0], [145.47, -4.47], [145.82, -4.32]]], [[[148.75, -3.0], [148.97, -2.47], [149.5, -2.25], [149.75, -2.35], [150.0, -2.25], [150.53, -2.47], [150.75, -3.0], [150.53, -3.53], [150.0, -3.75], [149.75, -3.65], [149.5, -3.75], [148.97, -3.53], [148.75, -3.0]]]]}, "2012-11-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[144.85, -4.75], 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23.216004480571144, 22.96050551641241, 22.98995841369282, 23.266645096830587, 23.199014947395938]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.00340841261999, -0.9766691618587137, -0.7775611504017609, -0.9427765503156744, -0.9862642747439073, -0.9643242819867837, -0.9987490358846784, -1.0350944278593772]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.1399159073117175, -1.2498368497615502, -0.8569592727420741, -1.1607325248301095, -1.182345705329908, -1.2611465478891546, -1.2225423433562241, -1.6055491105012152]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6522415047165908, -1.6063341600052736, -1.2866128899810556, -1.5734799184804453, -1.673864140833128, -1.6568585790614119, -1.7454535754819358, -1.7642871996638156]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7718622414178296, -1.975837092095588, -1.4055252986472788, -1.9450214096470302, -2.102795413201959, -2.1459270954092085, -2.0698081433819078, -2.6622437746355767]}}