{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:08:43.637918", "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": "2025-Nov-09_to_2025-Nov-15_316.0_-23.5"}, "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": 2025110000267}, "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": "November 09 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 15 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 61864.31422688339}, "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": ["Atlantic Ocean", "Oceano Atl\u00e2ntico"]}, "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": -23.5}, "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": 316.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "316.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 312.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 316.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -26.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -23.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-47.25, -23.35], [-47.0, -23.25], [-46.75, -23.35], [-46.5, -23.25], [-46.25, -23.35], [-46.0, -23.25], [-45.75, -23.35], [-45.68, -23.32], [-45.53, -22.97], [-45.0, -22.75], [-44.75, -22.85], [-44.5, -22.75], [-44.25, -22.85], [-44.0, -22.75], [-43.75, -22.85], [-43.5, -22.75], [-42.97, -22.97], [-42.75, -23.5], [-42.97, -24.03], [-43.5, -24.25], [-43.75, -24.15], [-44.0, -24.25], [-44.25, -24.15], [-44.37, -24.2], [-44.25, -24.5], [-44.47, -25.03], [-44.82, -25.18], [-44.85, -25.25], [-44.75, -25.5], [-44.97, -26.03], [-45.32, -26.18], [-45.47, -26.53], [-46.0, -26.75], [-46.53, -26.53], [-46.68, -26.18], [-46.75, -26.15], [-47.0, -26.25], [-47.53, -26.03], [-47.75, -25.5], [-47.65, -25.25], [-47.75, -25.0], [-47.65, -24.75], [-47.68, -24.68], [-48.03, -24.53], [-48.25, -24.0], [-48.03, -23.47], [-47.5, -23.25], [-47.25, -23.35]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": 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t2m anomalies.", "value": [-1.9742959512268066, -2.0214861445668064, -1.6877481189152523, -1.367608066359652, -1.148213453043668, -1.314976341211792, -1.3614766341646865]}}