{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:24:55.655565", "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-Nov-20_to_2022-Nov-23_38.0_-6.0"}, "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": 2022110002496}, "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 20 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 23 2022"}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 70601.78807620227}, "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": ["Indian 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": -6.0}, "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": 38.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "38.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 37.0}, "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": -8.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -4.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[37.82, -5.32], [37.85, -5.25], [37.75, -5.0], [37.96, -4.5], [37.75, -4.0], [37.97, -3.47], [38.5, -3.25], [39.03, -3.47], [39.18, -3.82], [39.53, -3.97], [39.75, -4.5], [39.65, -4.75], [39.75, -5.0], [39.53, -5.53], [39.18, -5.68], [39.15, -5.75], [39.25, -6.0], [39.15, -6.25], [39.18, -6.32], [39.25, -6.35], [39.5, -6.25], [40.03, -6.47], [40.25, -7.0], [40.03, -7.53], [39.68, -7.68], [39.65, -7.75], [39.75, -8.0], [39.53, -8.53], [39.0, -8.75], [38.75, -8.65], [38.5, -8.75], [38.25, -8.65], [38.0, -8.75], [37.75, -8.65], [37.5, -8.75], [36.97, -8.53], [36.82, -8.18], [36.47, -8.03], [36.25, -7.5], [36.47, -6.97], [36.88, -6.8], [36.75, -6.5], [36.97, -5.97], [37.32, -5.82], [37.47, -5.47], [37.82, -5.32]]]]}}, "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": {"2022-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.47, -8.03], [36.25, -7.5], [36.47, -6.97], [36.88, -6.8], 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over entire duration", "value": 1.6867963398571038}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.908017493766977, 27.964732782696615, 28.245246780408706, 27.77196158865121]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.671559000699517, 30.613835923853628, 30.729410493734065, 29.412695102325927]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.6150904820201182, 1.6594468030631233, 1.9100407061249252, 1.3297530464011444]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.302065523563158, 2.4459831566101684, 2.4150835803325776, 1.58557035834599]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7578891814771134, 1.7307116922450718, 1.9405336393706805, 1.3472628660810009]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.4119694279343995, 2.26655982333967, 2.495698697621303, 1.4726574002246517]}}