{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:53:40.633145", "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": "2023-Jun-04_to_2023-Jun-08_262.5_26.5"}, "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": 2023060000227}, "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 04 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 08 2023"}, "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": 145822.75920069029}, "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": ["Mexico", "United States"]}, "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": 26.5}, "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": 262.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "262.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 258.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 262.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 29.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-99.75, 24.0], [-99.97, 23.47], [-100.5, 23.25], [-101.03, 23.47], [-101.25, 24.0], [-101.15, 24.25], [-101.25, 24.5], [-101.03, 25.03], [-100.68, 25.18], [-100.65, 25.25], [-100.75, 25.5], [-100.65, 25.75], [-100.68, 25.82], [-101.03, 25.97], [-101.18, 26.32], [-101.25, 26.35], [-101.5, 26.25], [-102.03, 26.47], [-102.25, 27.0], [-102.15, 27.25], [-102.25, 27.5], [-102.15, 27.75], [-102.25, 28.0], [-102.15, 28.25], [-102.25, 28.5], [-102.15, 28.75], [-102.18, 28.82], [-102.53, 28.97], [-102.75, 29.5], [-102.53, 30.03], [-102.0, 30.25], [-101.75, 30.15], [-101.5, 30.25], [-100.97, 30.03], [-100.82, 29.68], [-100.75, 29.65], [-100.5, 29.75], [-100.25, 29.65], [-100.0, 29.75], [-99.47, 29.53], [-99.32, 29.18], [-98.97, 29.03], [-98.75, 28.5], [-98.93, 28.07], [-98.68, 28.18], [-98.53, 28.53], [-98.0, 28.75], [-97.75, 28.65], [-97.5, 28.75], [-96.97, 28.53], [-96.75, 28.0], [-96.85, 27.75], [-96.75, 27.5], [-96.96, 27.0], [-96.75, 26.5], [-96.97, 25.97], [-97.32, 25.82], [-97.47, 25.47], [-97.82, 25.32], [-97.97, 24.97], [-98.32, 24.82], [-98.47, 24.47], [-99.0, 24.25], [-99.25, 24.35], [-99.5, 24.25], [-99.75, 24.35], [-99.82, 24.32], [-99.85, 24.25], [-99.75, 24.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Central-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.52999999999997, 28.97], [-102.75, 29.5], [-102.52999999999997, 30.03], [-102.0, 30.25], [-101.75, 30.15], [-101.5, 30.25], [-100.97000000000003, 30.03], [-100.82, 29.68], [-100.75, 29.65], [-100.5, 29.75], [-100.25, 29.65], [-100.0, 29.75], [-99.47000000000003, 29.53], [-99.32, 29.18], [-98.97000000000003, 29.03], [-98.75, 28.5], [-98.93, 28.07], [-98.68, 28.18], [-98.52999999999997, 28.53], [-98.0, 28.75], [-97.75, 28.65], [-97.5, 28.75], [-96.97000000000003, 28.53], [-96.75, 28.0], [-96.85000000000002, 27.75], [-96.75, 27.5], [-96.95999999999998, 27.0], [-96.75, 26.5], 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