{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:55:54.963474", "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-Nov-02_to_2023-Nov-07_39.0_-3.0"}, "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": 2023110000114}, "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 02 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 07 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 120186.93960574167}, "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": ["Kenya", "Tanzania, United Republic of"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "Africa"]}, "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": -3.0}, "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": 39.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "39.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 35.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 39.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -6.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -1.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[34.75, -3.5], [34.97, -2.97], [35.5, -2.75], [35.75, -2.85], [36.0, -2.75], [36.5, -2.96], [37.0, -2.75], [37.5, -2.96], 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the event at each time step", "value": {"2023-11-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.0, -5.75], [36.47, -5.53], [36.25, -5.0], [36.47, -4.47], [37.0, -4.25], [37.5, -4.46], [38.0, -4.25], [38.53, -4.47], [38.75, -5.0], [38.53, -5.53], [38.0, -5.75], [37.5, -5.54], [37.0, -5.75]]]]}, "2023-11-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.75, -5.0], [34.97, -4.47], [35.32, -4.32], [35.35, -4.25], [35.32, -4.18], [34.97, -4.03], [34.75, -3.5], [34.97, -2.97], [35.5, -2.75], [35.75, -2.85], [36.0, -2.75], [36.5, -2.96], [37.0, -2.75], [37.5, -2.96], [38.0, -2.75], [38.3, -2.88], [38.35, -2.75], [38.25, -2.5], [38.35, -2.25], [38.25, -2.0], [38.35, -1.75], [38.25, -1.5], [38.47, -0.97], [39.0, -0.75], [39.25, -0.85], [39.5, -0.75], [40.03, -0.97], [40.25, -1.5], [40.15, -1.75], [40.25, -2.0], [40.15, -2.25], [40.25, -2.5], [40.15, -2.75], [40.25, -3.0], [40.03, -3.53], [39.68, -3.68], [39.53, -4.03], [39.18, -4.18], [39.03, -4.53], 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"description": "Maximum t2m anomaly recorded over entire duration", "value": -3.8967391910316564}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.987966749101932}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.144548246320767, 21.641550012293123, 22.46613213904169, 22.67922002748486, 23.125428230237162, 23.39417268158752]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.440334936488625, 18.875345777398024, 19.62476718046065, 19.235333665184328, 19.90681470573395, 20.433281061469927]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.3123790750209707, -2.7161893938452173, -1.8834558378762651, -1.7596073778600454, -1.6571260338588918, -1.4330917225876192]}, "anom_evo_maxamp": {"name": "Evolution 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