{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:14:22.156698", "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": "2021-Oct-25_to_2021-Oct-29_289.5_-8.0"}, "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": 2021100000859}, "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 25 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 29 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 196405.483254679}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": -8.0}, "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": 289.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "289.5\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": 293.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -9.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -3.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-71.54, -7.0], [-71.75, -6.5], [-71.65, -6.25], [-71.75, -6.0], [-71.53, -5.47], [-71.0, -5.25], [-70.75, -5.35], [-70.68, -5.32], [-70.53, -4.97], [-70.18, -4.82], [-70.04, -4.5], [-70.25, -4.0], [-70.15, -3.75], [-70.25, -3.5], [-70.03, -2.97], [-69.5, -2.75], [-68.97, -2.97], [-68.82, -3.32], [-68.75, -3.35], [-68.5, -3.25], [-67.97, -3.47], [-67.82, -3.82], [-67.75, -3.85], [-67.5, -3.75], [-66.97, -3.97], [-66.75, -4.5], [-66.85, -4.75], [-66.82, -4.82], [-66.47, -4.97], [-66.32, -5.32], [-65.97, -5.47], [-65.75, -6.0], [-65.97, -6.53], [-66.32, -6.68], [-66.47, -7.03], [-67.0, -7.25], [-67.5, -7.04], [-67.87, -7.2], [-67.75, -7.5], [-67.85, -7.75], [-67.75, -8.0], [-67.85, -8.25], [-67.75, -8.5], [-67.85, -8.75], [-67.75, -9.0], [-67.85, -9.25], [-67.75, -9.5], [-67.97, -10.03], [-68.5, -10.25], [-68.75, -10.15], [-69.0, -10.25], [-69.53, -10.03], [-69.7, -9.62], [-69.82, -9.68], [-69.97, -10.03], [-70.5, -10.25], [-71.03, -10.03], [-71.18, -9.68], [-71.53, -9.53], [-71.68, -9.18], [-72.03, -9.03], [-72.25, -8.5], [-72.15, -8.25], [-72.25, -8.0], [-72.03, -7.47], [-71.68, -7.32], [-71.54, 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