{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:50:10.698692", "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-Jan-04_to_2023-Jan-11_305.0_4.5"}, "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": 2023010000284}, "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": "January 04 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 11 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 92401.80923020282}, "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": ["French Guiana", "Guyana", "Suriname"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": 4.5}, "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": 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": 302.0}, "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": 3.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 5.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-54.5, 3.75], [-54.75, 3.85], [-54.82, 3.82], [-54.97, 3.47], [-55.5, 3.25], [-56.03, 3.47], [-56.18, 3.82], [-56.25, 3.85], [-56.32, 3.82], [-56.33, 3.82], [-56.34, 3.78], [-56.35, 3.75], [-56.25, 3.5], [-56.47, 2.97], [-57.0, 2.75], [-57.25, 2.85], [-57.5, 2.75], [-58.03, 2.97], [-58.18, 3.32], [-58.53, 3.47], [-58.75, 4.0], [-58.65, 4.25], [-58.75, 4.5], [-58.65, 4.75], [-58.75, 5.0], [-58.65, 5.25], [-58.75, 5.5], [-58.53, 6.03], [-58.0, 6.25], [-57.75, 6.15], [-57.5, 6.25], [-57.25, 6.15], [-57.0, 6.25], [-56.75, 6.15], [-56.5, 6.25], [-56.25, 6.15], [-56.0, 6.25], [-55.75, 6.15], [-55.5, 6.25], [-55.25, 6.15], [-55.0, 6.25], [-54.75, 6.15], [-54.5, 6.25], [-54.25, 6.15], [-54.0, 6.25], [-53.47, 6.03], [-53.25, 5.5], [-53.47, 4.97], [-53.82, 4.82], [-53.85, 4.75], [-53.75, 4.5], [-53.97, 3.97], [-54.5, 3.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "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": 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