{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:33.756042", "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-Oct-06_to_2012-Oct-09_289.0_-31.0"}, "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": 2012100000269}, "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": "October 06 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 09 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 55933.967248806075}, "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": ["Chile"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.W.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "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": []}, "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": -31.0}, "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": 289.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "289.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 288.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 289.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -34.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -25.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-10-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-71.75, -33.5], [-71.65, -33.25], [-71.75, -33.0], [-71.65, -32.75], [-71.75, -32.5], [-71.65, -32.25], [-71.75, -32.0], [-71.54, -31.5], [-71.75, -31.0], [-71.54, -30.5], [-71.75, -30.0], [-71.53, -29.47], [-71.0, -29.25], [-70.47, -29.47], [-70.25, -30.0], [-70.46, -30.5], [-70.25, -31.0], [-70.46, -31.5], [-70.25, -32.0], [-70.35, -32.25], [-70.25, -32.5], [-70.35, -32.75], [-70.25, -33.0], [-70.35, -33.25], [-70.25, -33.5], [-70.35, -33.75], [-70.25, -34.0], [-70.35, -34.25], [-70.25, -34.5], [-70.47, -35.03], [-71.0, -35.25], [-71.53, -35.03], [-71.75, -34.5], [-71.65, -34.25], [-71.75, -34.0], [-71.65, -33.75], [-71.75, -33.5]]], [[[-71.53, -27.97], [-71.18, -27.82], [-71.15, -27.75], [-71.25, -27.5], [-71.03, -26.97], [-70.5, -26.75], [-69.97, -26.97], [-69.75, -27.5], [-69.85, -27.75], [-69.75, -28.0], [-69.97, -28.53], [-70.32, -28.68], [-70.47, -29.03], [-71.0, -29.25], [-71.53, -29.03], [-71.75, -28.5], [-71.53, -27.97]]]]}, "2012-10-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.03, -29.97], [-71.68, -29.82], [-71.65, -29.75], [-71.75, -29.5], [-71.65, -29.25], [-71.75, -29.0], [-71.65, -28.75], [-71.75, -28.5], [-71.53, -27.97], [-71.18, -27.82], [-71.15, -27.75], [-71.25, -27.5], [-71.15, -27.25], [-71.25, -27.0], [-71.15, -26.75], [-71.25, -26.5], [-71.15, -26.25], [-71.25, -26.0], [-71.03, -25.47], [-70.5, -25.25], [-69.97, -25.47], [-69.75, -26.0], [-69.85, -26.25], [-69.75, -26.5], [-69.85, -26.75], [-69.75, -27.0], [-69.85, -27.25], [-69.75, -27.5], [-69.85, -27.75], [-69.75, -28.0], [-69.97, -28.53], [-70.32, -28.68], [-70.35, -28.75], [-70.25, -29.0], [-70.35, -29.25], [-70.25, -29.5], [-70.35, -29.75], [-70.25, -30.0], [-70.35, -30.25], [-70.25, -30.5], [-70.35, -30.75], [-70.25, -31.0], [-70.35, -31.25], [-70.25, -31.5], [-70.35, -31.75], [-70.32, -31.82], [-69.97, -31.97], [-69.75, -32.5], [-69.97, -33.03], [-70.32, -33.18], [-70.35, -33.25], [-70.25, -33.5], [-70.35, -33.75], [-70.25, -34.0], [-70.35, -34.25], [-70.25, -34.5], [-70.47, -35.03], [-71.0, -35.25], [-71.53, -35.03], [-71.75, -34.5], [-71.65, -34.25], [-71.75, -34.0], [-71.65, -33.75], [-71.75, -33.5], [-71.65, -33.25], [-71.75, -33.0], [-71.65, -32.75], [-71.75, -32.5], [-71.65, -32.25], [-71.75, -32.0], [-71.65, -31.75], [-71.68, -31.68], [-72.03, -31.53], [-72.25, -31.0], [-72.15, -30.75], [-72.25, -30.5], [-72.03, -29.97]]]]}, "2012-10-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.03, -29.97], [-71.68, -29.82], [-71.65, -29.75], [-71.75, -29.5], [-71.65, -29.25], [-71.75, -29.0], [-71.65, -28.75], [-71.75, -28.5], [-71.53, -27.97], [-71.18, -27.82], [-71.15, -27.75], [-71.25, -27.5], [-71.15, -27.25], [-71.25, -27.0], [-71.15, -26.75], [-71.25, -26.5], [-71.15, -26.25], [-71.25, -26.0], [-71.03, -25.47], [-70.5, -25.25], [-69.97, -25.47], [-69.75, -26.0], [-69.85, -26.25], [-69.75, -26.5], [-69.85, -26.75], [-69.75, -27.0], [-69.85, -27.25], [-69.75, -27.5], [-69.85, -27.75], [-69.75, -28.0], [-69.97, -28.53], [-70.32, -28.68], [-70.35, -28.75], [-70.25, -29.0], [-70.35, -29.25], [-70.25, -29.5], [-70.35, -29.75], [-70.25, -30.0], [-70.35, -30.25], [-70.25, -30.5], [-70.35, -30.75], [-70.25, -31.0], [-70.35, -31.25], [-70.25, -31.5], [-70.35, -31.75], [-70.32, -31.82], [-69.97, -31.97], [-69.75, -32.5], [-69.97, -33.03], [-70.32, -33.18], [-70.35, -33.25], [-70.25, -33.5], [-70.35, -33.75], [-70.25, -34.0], [-70.35, -34.25], [-70.25, -34.5], [-70.47, -35.03], [-71.0, -35.25], [-71.53, -35.03], [-71.75, -34.5], [-71.65, -34.25], [-71.75, -34.0], [-71.65, -33.75], [-71.75, -33.5], [-71.65, -33.25], [-71.75, -33.0], [-71.65, -32.75], [-71.75, -32.5], [-71.65, -32.25], [-71.75, -32.0], [-71.65, -31.75], [-71.68, -31.68], [-72.03, -31.53], [-72.25, -31.0], [-72.15, -30.75], [-72.25, -30.5], [-72.03, -29.97]]]]}, "2012-10-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.03, -29.97], [-71.68, -29.82], [-71.65, -29.75], [-71.75, -29.5], [-71.65, -29.25], [-71.75, -29.0], [-71.53, -28.47], [-71.12, -28.3], [-71.25, -28.0], [-71.15, -27.75], [-71.25, -27.5], [-71.15, -27.25], [-71.25, -27.0], [-71.15, -26.75], [-71.25, -26.5], [-71.15, -26.25], [-71.25, -26.0], [-71.03, -25.47], [-70.5, -25.25], [-69.97, -25.47], [-69.75, -26.0], [-69.85, -26.25], [-69.75, -26.5], [-69.85, -26.75], [-69.75, -27.0], [-69.85, -27.25], [-69.75, -27.5], [-69.85, -27.75], [-69.75, -28.0], [-69.97, -28.53], [-70.37, -28.7], [-70.25, -29.0], [-70.35, -29.25], [-70.25, -29.5], [-70.35, -29.75], [-70.25, -30.0], [-70.35, -30.25], [-70.25, -30.5], [-70.35, -30.75], [-70.25, -31.0], [-70.35, -31.25], [-70.25, -31.5], [-70.35, -31.75], [-70.32, -31.82], [-69.97, -31.97], [-69.75, -32.5], [-69.97, -33.03], [-70.5, -33.25], [-70.75, -33.15], [-71.0, -33.25], [-71.53, -33.03], [-71.75, -32.5], [-71.65, -32.25], [-71.75, -32.0], [-71.65, -31.75], [-71.68, -31.68], [-72.03, -31.53], [-72.25, -31.0], [-72.15, -30.75], [-72.25, -30.5], [-72.03, -29.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.790910176058048}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.627869749313636}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.646978214358171, 10.495475266245876, 10.05668408355183, 10.916953885680186]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.128625715534326, 1.782891741545427, 1.2140225687411998, 1.852677309260173]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.028425393068734, -3.6853183043542037, -4.1644493779018195, -3.26032575321927]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.319045422167335, -5.501946505456203, -6.790910176058048, -4.993719202332386]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4412022805380411, -1.8811791953357262, -2.1691550863269264, -1.7320208773898695]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6677849558654683, -2.61748038963496, -3.0474007457001395, -2.6118146198539494]}}