{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:21:05.900590", "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": "2022-Jun-27_to_2022-Jun-30_305.0_0.0"}, "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": 2022060001222}, "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": "June 27 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 30 2022"}, "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": 191535.27574524865}, "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": ["Brazil", "French Guiana", "Guyana", "Suriname"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America", "America", "America", "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": 0.0}, "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": 305.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "305.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 301.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 306.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -1.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 4.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-53.25, 0.5], [-53.47, -0.03], [-53.82, -0.18], [-53.97, -0.53], [-54.32, -0.68], [-54.35, -0.75], [-54.25, -1.0], 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"List of all IPCC regions affected", "value": ["N.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-59.52999999999997, 0.47], [-59.75, 1.0], [-59.52999999999997, 1.53], [-59.0, 1.75], [-58.75, 1.65], [-58.5, 1.75], [-58.25, 1.65], [-58.0, 1.75], [-57.75, 1.65], [-57.68000000000001, 1.68], [-57.64999999999998, 1.75], [-57.68000000000001, 1.82], [-58.02999999999997, 1.97], [-58.25, 2.5], [-58.02999999999997, 3.03], [-57.68000000000001, 3.18], [-57.52999999999997, 3.53], [-57.18000000000001, 3.68], [-57.02999999999997, 4.03], [-56.5, 4.25], [-56.0, 4.04], [-55.68000000000001, 4.18], [-55.64999999999998, 4.25], [-55.75, 4.5], [-55.52999999999997, 5.03], [-55.0, 5.25], [-54.47000000000003, 5.03], [-54.25, 4.5], [-54.35000000000002, 4.25], [-54.31999999999999, 4.18], [-53.97000000000003, 4.03], [-53.75, 3.5], 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"evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.42285193363648, 23.51023470198612, 23.2417827374083, 23.050438389494275]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.26296452886436, 22.41915485431622, 22.276539512195313, 22.753068237400214]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.3450607726659334, -1.2448282278281226, -1.4797487903590985, -1.1284096867239213]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.9401931147231153, -1.7736268901223298, -2.190581355230222, -1.359458651203056]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9149085849452905, -1.852325721563503, -2.2596940426087757, -1.7302860333479217]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.609245705216407, -2.739974877062677, -4.142844290425596, -2.261167610824138]}}