{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:22:05.749139", "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": "2022-Aug-01_to_2022-Aug-08_39.0_0.0"}, "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": 2022080000051}, "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": "August 01 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 08 2022"}, "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": 52543.96920164002}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": 0.0}, "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": 37.5}, "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": -1.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 1.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[37.82, 1.18], [37.97, 1.53], [38.5, 1.75], [39.03, 1.53], [39.18, 1.18], [39.25, 1.15], [39.5, 1.25], [40.03, 1.03], [40.25, 0.5], [40.15, 0.25], [40.25, 0.0], [40.15, -0.25], [40.25, -0.5], [40.15, -0.75], [40.25, -1.0], [40.15, -1.25], [40.25, -1.5], [40.03, -2.03], [39.5, -2.25], [39.25, -2.15], [39.0, -2.25], [38.47, -2.03], [38.25, -1.5], [38.35, -1.25], [38.25, -1.0], [38.35, -0.75], [38.32, -0.68], [38.25, -0.65], [38.0, -0.75], [37.75, -0.65], [37.5, -0.75], [36.97, -0.53], [36.75, 0.0], [36.85, 0.25], [36.75, 0.5], [36.97, 1.03], [37.5, 1.25], [37.75, 1.15], [37.82, 1.18]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Eastern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-08-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.25, 0.0], [38.47, 0.53], [39.0, 0.75], [39.53, 0.53], [39.75, 0.0], [39.65, -0.25], [39.75, -0.5], [39.53, -1.03], [39.0, -1.25], [38.47, -1.03], [38.25, -0.5], [38.35, -0.25], [38.25, 0.0]]]]}, "2022-08-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.75, 0.5], [36.97, 1.03], [37.5, 1.25], [37.75, 1.15], [38.0, 1.25], [38.53, 1.03], [38.68, 0.68], [38.75, 0.65], [39.0, 0.75], [39.53, 0.53], [39.75, 0.0], [39.65, -0.25], [39.75, -0.5], [39.53, -1.03], [39.0, -1.25], [38.47, -1.03], [38.32, -0.68], [38.25, -0.65], [38.0, -0.75], [37.75, -0.65], [37.5, -0.75], [36.97, -0.53], [36.75, 0.0], [36.85, 0.25], [36.75, 0.5]]]]}, "2022-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.75, 0.5], [36.97, 1.03], [37.5, 1.25], [37.75, 1.15], [38.0, 1.25], [38.53, 1.03], [38.68, 0.68], [38.75, 0.65], [39.0, 0.75], [39.53, 0.53], [39.68, 0.18], [40.03, 0.03], [40.25, -0.5], [40.03, -1.03], [39.5, -1.25], [39.25, -1.15], [39.0, -1.25], [38.47, -1.03], [38.32, -0.68], [38.25, -0.65], [38.0, -0.75], [37.75, -0.65], [37.5, -0.75], [36.97, -0.53], [36.75, 0.0], [36.85, 0.25], [36.75, 0.5]]]]}, "2022-08-04T11:30:00.000000000": {"type": 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