{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:52:37.387220", "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-Apr-06_to_2023-Apr-14_37.5_-3.5"}, "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": 2023040001521}, "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": "April 06 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 14 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 9}, "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": 76967.39916655206}, "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": -3.5}, "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": 37.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "37.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 35.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 39.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -7.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -3.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[35.88, -5.3], [35.75, -5.0], [35.97, -4.47], [36.32, -4.32], [36.35, -4.25], [36.25, -4.0], [36.47, -3.47], [36.82, -3.32], [36.97, -2.97], [37.5, -2.75], [37.75, -2.85], [38.0, -2.75], [38.53, -2.97], [38.68, -3.32], [39.03, -3.47], [39.25, -4.0], [39.15, -4.25], [39.18, -4.32], [39.53, -4.47], [39.75, -5.0], [39.53, -5.53], [39.18, -5.68], [39.03, -6.03], [38.5, -6.25], [38.0, -6.04], [37.89, -6.09], [37.68, -6.18], [37.53, -6.53], [37.18, -6.68], [37.03, -7.03], [36.5, -7.25], [36.25, -7.15], [36.18, -7.18], [36.03, -7.53], [35.5, -7.75], [34.97, -7.53], [34.75, -7.0], [34.85, -6.75], [34.75, -6.5], [34.97, -5.97], [35.32, -5.82], [35.47, -5.47], [35.88, -5.3]]]]}}, "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": {"2023-04-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.25, -5.0], [36.47, -4.47], [36.82, -4.32], [36.85, -4.25], [36.75, -4.0], [36.97, -3.47], [37.32, -3.32], 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"mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.5956882528498648}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.850131923380275, 24.902066057876652, 24.84478366608431, 25.504956047898645, 24.71535439069021, 25.219116733464375, 25.033391897808542, 26.08981667289663, 26.06054381242086]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.499710454721537, 26.96114511682981, 26.60883849881236, 27.524039365876718, 27.06946207410641, 28.592756846317343, 28.890425707124393, 28.396695042778447, 26.07831398716803]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.3254352201151154, 1.4737679459625685, 1.4916126114493067, 1.8831831989031271, 1.5233574892873776, 1.8004567787958654, 1.6643322717911464, 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2.3407614797291716, 2.2431138339855785, 1.5562310457186985, 1.34476218345554]}}