{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:13:19.250957", "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": "2021-Sep-01_to_2021-Sep-08_305.5_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": 2021090000074}, "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": "September 01 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 08 2021"}, "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": 107833.60304894764}, "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", "French Guiana", "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": ["Atlantic Ocean"]}, "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": 305.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "305.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 304.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 307.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 1.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 7.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-55.75, 3.5], [-55.65, 3.75], [-55.68, 3.82], [-55.75, 3.85], [-56.0, 3.75], [-56.53, 3.97], [-56.75, 4.5], [-56.65, 4.75], [-56.75, 5.0], [-56.53, 5.53], [-56.18, 5.68], [-56.03, 6.03], [-55.62, 6.2], [-55.75, 6.5], [-55.53, 7.03], [-55.0, 7.25], [-54.7, 7.12], [-54.53, 7.53], [-54.0, 7.75], [-53.47, 7.53], [-53.32, 7.18], [-53.25, 7.15], [-53.0, 7.25], [-52.47, 7.03], [-52.25, 6.5], [-52.35, 6.25], [-52.25, 6.0], [-52.47, 5.47], [-53.0, 5.25], [-53.25, 5.35], [-53.5, 5.25], [-53.75, 5.35], [-53.87, 5.3], [-53.82, 5.18], [-53.47, 5.03], [-53.25, 4.5], [-53.35, 4.25], [-53.25, 4.0], [-53.35, 3.75], [-53.25, 3.5], [-53.46, 3.0], [-53.25, 2.5], [-53.35, 2.25], [-53.25, 2.0], [-53.35, 1.75], [-53.25, 1.5], [-53.47, 0.97], [-54.0, 0.75], [-54.25, 0.85], [-54.5, 0.75], [-55.03, 0.97], [-55.18, 1.32], [-55.53, 1.47], [-55.75, 2.0], [-55.65, 2.25], [-55.75, 2.5], [-55.65, 2.75], [-55.75, 3.0], [-55.65, 3.25], [-55.75, 3.5]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon 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