{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:11:20.744723", "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-Feb-11_to_2020-Feb-14_316.0_-23.0"}, "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": 2020020000437}, "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": "February 11 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 14 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": 97497.77656590342}, "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": -23.0}, "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": 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": 315.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 319.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -23.0}, "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": [[[-45.25, -23.0], [-45.146, -22.75], [-45.25, -22.5], [-45.146, -22.25], [-45.177, -22.177], [-45.53, -22.03], [-45.75, -21.5], [-45.53, -20.97], [-45.177, -20.823], [-45.03, -20.47], [-44.5, -20.25], [-44.25, -20.354], [-44.0, -20.25], [-43.5, -20.457], [-43.0, -20.25], [-42.75, -20.354], [-42.5, -20.25], [-42.25, -20.354], [-42.0, -20.25], [-41.75, -20.354], [-41.5, -20.25], [-41.25, -20.354], [-41.0, -20.25], [-40.47, -20.47], [-40.25, -21.0], [-40.457, -21.5], [-40.25, -22.0], [-40.47, -22.53], [-41.0, -22.75], [-41.25, -22.646], [-41.323, -22.677], [-41.47, -23.03], [-41.823, -23.177], [-41.97, -23.53], [-42.5, -23.75], [-42.75, -23.646], [-43.0, -23.75], [-43.25, -23.646], [-43.5, -23.75], [-43.75, -23.646], [-44.0, -23.75], [-44.25, -23.646], [-44.5, -23.75], [-45.03, -23.53], [-45.25, -23.0]]]}}, "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": {"2020-02-11T11:30:00.000000000": {"type": "Polygon", 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