{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:13:23.885374", "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": "2020-May-25_to_2020-May-28_264.5_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": 2020050000641}, "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": "May 25 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 28 2020"}, "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": 70615.61032446516}, "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": ["United States"]}, "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": 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": 264.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "264.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 262.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 266.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 31.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 33.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[-96.0, 30.25], [-96.53, 30.47], [-96.75, 31.0], [-96.646, 31.25], [-96.677, 31.323], [-96.75, 31.354], [-97.0, 31.25], [-97.25, 31.354], [-97.5, 31.25], [-98.03, 31.47], [-98.25, 32.0], [-98.146, 32.25], [-98.25, 32.5], [-98.146, 32.75], [-98.25, 33.0], [-98.03, 33.53], [-97.5, 33.75], [-97.25, 33.646], [-97.0, 33.75], [-96.47, 33.53], [-96.323, 33.177], [-96.25, 33.146], [-96.177, 33.177], [-96.03, 33.53], [-95.5, 33.75], [-94.97, 33.53], [-94.802, 33.125], [-94.677, 33.177], [-94.646, 33.25], [-94.75, 33.5], [-94.53, 34.03], [-94.0, 34.25], [-93.47, 34.03], [-93.25, 33.5], [-93.354, 33.25], [-93.323, 33.177], [-92.97, 33.03], [-92.75, 32.5], [-92.854, 32.25], [-92.75, 32.0], [-92.97, 31.47], [-93.5, 31.25], [-93.75, 31.354], [-93.823, 31.323], [-93.97, 30.97], [-94.5, 30.75], [-94.75, 30.854], [-94.823, 30.823], [-94.97, 30.47], [-95.5, 30.25], [-95.75, 30.354], [-96.0, 30.25]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at 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