{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:19:52.802516", "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-Dec-23_to_2020-Dec-25_319.5_-21.5"}, "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": 2020120000892}, "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": "December 23 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 25 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 80100.35962686963}, "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": -21.5}, "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": 319.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "319.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 315.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 319.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -23.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -21.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[-44.0, -21.25], [-43.75, -21.354], [-43.5, -21.25], [-43.198, -21.375], [-43.03, -20.97], [-42.677, -20.823], [-42.53, -20.47], [-42.0, -20.25], [-41.47, -20.47], [-41.323, -20.823], [-41.25, -20.854], [-41.177, -20.823], [-41.03, -20.47], [-40.5, -20.25], [-39.97, -20.47], [-39.75, -21.0], [-39.854, -21.25], [-39.75, -21.5], [-39.854, -21.75], [-39.75, -22.0], [-39.854, -22.25], [-39.75, -22.5], [-39.97, -23.03], [-40.323, -23.177], [-40.354, -23.25], [-40.25, -23.5], [-40.47, -24.03], [-41.0, -24.25], [-41.25, -24.146], [-41.5, -24.25], [-42.03, -24.03], [-42.198, -23.625], [-42.5, -23.75], [-42.75, -23.646], [-43.0, -23.75], [-43.53, -23.53], [-43.677, -23.177], [-43.75, -23.146], [-44.0, -23.25], [-44.25, -23.146], [-44.5, -23.25], [-45.03, -23.03], [-45.25, -22.5], [-45.03, -21.97], [-44.677, -21.823], [-44.53, -21.47], [-44.0, -21.25]]]}}, "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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"The daily evolution of maximum standardized t2m anomalies.", "value": [-2.8378940248816225, -3.228773987782487, -2.7136610403788373]}}