{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:59:17.457165", "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": "2024-Jun-20_to_2024-Jun-25_291.0_-43.5"}, "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": 2024060000586}, "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 20 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 25 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 86725.18162976582}, "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": ["Argentina", "Chile"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": -43.5}, "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": 291.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "291.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 288.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 292.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -45.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -42.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-71.53, -43.97], [-71.18, -43.82], [-71.15, -43.75], [-71.25, -43.5], [-71.15, -43.25], [-71.25, -43.0], [-71.15, -42.75], [-71.25, -42.5], [-71.15, -42.25], [-71.25, -42.0], [-71.03, -41.47], [-70.5, -41.25], [-69.97, -41.47], [-69.82, -41.82], [-69.47, -41.97], [-69.32, -42.32], [-69.25, -42.35], [-69.0, -42.25], [-68.75, -42.35], [-68.5, -42.25], [-68.25, -42.35], [-68.0, -42.25], [-67.75, -42.35], [-67.5, -42.25], [-66.97, -42.47], [-66.75, -43.0], [-66.85, -43.25], [-66.75, -43.5], [-66.97, -44.03], [-67.32, -44.18], [-67.47, -44.53], [-67.82, -44.68], [-67.97, -45.03], [-68.32, -45.18], [-68.47, -45.53], [-68.82, -45.68], [-68.97, -46.03], [-69.5, -46.25], [-69.75, -46.15], [-70.0, -46.25], [-70.5, -46.04], [-71.0, -46.25], [-71.25, -46.15], [-71.5, -46.25], [-72.03, -46.03], [-72.25, -45.5], [-72.15, -45.25], [-72.25, -45.0], [-72.03, -44.47], [-71.68, -44.32], [-71.53, -43.97]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.W.South-America", "S.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-06-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.5, -44.25], [-70.02999999999997, -44.03], [-70.25, -43.5], [-70.02999999999997, -42.97], [-69.5, -42.75], [-69.25, -42.85], [-69.0, -42.75], [-68.75, -42.85], [-68.5, -42.75], [-68.25, -42.85], [-68.18, -42.82], [-68.02999999999997, -42.47], [-67.5, -42.25], [-66.97000000000003, -42.47], [-66.75, -43.0], [-66.97000000000003, -43.53], [-67.32, -43.68], [-67.35000000000002, -43.75], [-67.25, -44.0], [-67.47000000000003, -44.53], [-68.0, -44.75], [-68.52999999999997, -44.53], [-68.68, -44.18], [-68.75, -44.15], [-69.0, -44.25], [-69.25, -44.15], [-69.5, -44.25]]]]}, "2024-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.5, -44.25], [-70.02999999999997, -44.03], [-70.25, -43.5], [-70.02999999999997, -42.97], [-69.5, -42.75], [-69.25, -42.85], [-69.0, -42.75], [-68.75, -42.85], [-68.5, -42.75], [-68.25, -42.85], 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