{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:54:02.638641", "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-Jun-14_to_2023-Jun-19_29.0_5.0"}, "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": 2023060002108}, "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": "June 14 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 19 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": "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": 73882.56526824953}, "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": ["Congo, The Democratic Republic of the", "South Sudan"]}, "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": 5.0}, "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": 29.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "29.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 28.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 30.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 3.0}, "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": [[[[27.25, 3.5], [27.47, 4.03], [27.82, 4.18], [27.85, 4.25], [27.75, 4.5], [27.85, 4.75], [27.75, 5.0], [27.85, 5.25], [27.75, 5.5], [27.85, 5.75], [27.75, 6.0], [27.85, 6.25], [27.75, 6.5], [27.97, 7.03], [28.5, 7.25], [28.75, 7.15], [28.82, 7.18], [28.97, 7.53], [29.5, 7.75], [30.03, 7.53], [30.25, 7.0], [30.15, 6.75], [30.18, 6.68], [30.53, 6.53], [30.75, 6.0], [30.54, 5.5], [30.75, 5.0], [30.53, 4.47], [30.13, 4.3], [30.25, 4.0], [30.15, 3.75], [30.25, 3.5], [30.03, 2.97], [29.5, 2.75], [29.25, 2.85], [29.18, 2.82], [29.03, 2.47], [28.5, 2.25], [27.97, 2.47], [27.82, 2.82], [27.47, 2.97], [27.25, 3.5]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-Africa", "S.Eastern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.97, 5.03], [28.5, 5.25], [29.03, 5.03], [29.25, 4.5], [29.03, 3.97], [28.5, 3.75], [27.97, 3.97], [27.75, 4.5], [27.97, 5.03]]]]}, "2023-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.75, 4.5], [27.85, 4.75], [27.75, 5.0], [27.97, 5.53], [28.5, 5.75], [28.75, 5.65], [29.0, 5.75], [29.5, 5.54], [30.0, 5.75], [30.53, 5.53], [30.75, 5.0], [30.53, 4.47], [30.13, 4.3], [30.25, 4.0], [30.15, 3.75], [30.25, 3.5], [30.03, 2.97], [29.5, 2.75], [29.25, 2.85], [29.18, 2.82], [29.03, 2.47], [28.5, 2.25], [27.97, 2.47], [27.75, 3.0], [27.96, 3.5], [27.75, 4.0], [27.85, 4.25], [27.75, 4.5]]]]}, "2023-06-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.75, 4.5], [27.85, 4.75], [27.75, 5.0], [27.85, 5.25], [27.75, 5.5], [27.85, 5.75], [27.75, 6.0], [27.85, 6.25], [27.75, 6.5], [27.97, 7.03], [28.5, 7.25], [28.75, 7.15], [28.82, 7.18], [28.97, 7.53], [29.5, 7.75], [30.03, 7.53], [30.25, 7.0], [30.15, 6.75], [30.18, 6.68], [30.53, 6.53], [30.75, 6.0], [30.54, 5.5], [30.75, 5.0], [30.53, 4.47], [30.13, 4.3], [30.25, 4.0], [30.15, 3.75], [30.25, 3.5], [30.03, 2.97], [29.5, 2.75], [29.25, 2.85], [29.18, 2.82], [29.03, 2.47], [28.5, 2.25], [27.97, 2.47], [27.75, 3.0], [27.96, 3.5], [27.75, 4.0], [27.85, 4.25], [27.75, 4.5]]]]}, "2023-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.47, 2.97], [27.25, 3.5], [27.47, 4.03], [27.82, 4.18], [27.85, 4.25], [27.75, 4.5], [27.85, 4.75], [27.75, 5.0], [27.85, 5.25], [27.75, 5.5], [27.85, 5.75], [27.75, 6.0], [27.85, 6.25], [27.75, 6.5], [27.97, 7.03], [28.5, 7.25], [28.75, 7.15], [28.82, 7.18], [28.97, 7.53], [29.5, 7.75], [30.03, 7.53], [30.25, 7.0], [30.15, 6.75], [30.18, 6.68], [30.53, 6.53], [30.75, 6.0], [30.54, 5.5], [30.75, 5.0], [30.53, 4.47], [30.13, 4.3], [30.25, 4.0], [30.15, 3.75], [30.25, 3.5], [30.03, 2.97], [29.5, 2.75], [29.25, 2.85], [29.18, 2.82], [29.03, 2.47], [28.5, 2.25], [27.97, 2.47], [27.82, 2.82], [27.47, 2.97]]]]}, "2023-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.85, 4.25], [27.75, 4.5], [27.85, 4.75], [27.75, 5.0], [27.85, 5.25], [27.75, 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1.4024742188024593}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.885935217782674, 24.987734795092706, 25.972744044645594, 26.017193578185413, 26.00829046239528, 24.21987832011922]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.885935217782674, 25.718731774504306, 28.377794862443636, 28.222859781017974, 28.03939697031393, 24.21987832011922]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.9753856343838265, 1.341187647444139, 1.3761067847107042, 1.496355842074261, 1.3983902031982505, 0.946855457042318]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.9753856343838265, 1.6258194423998589, 1.928861595158537, 1.9779516926275278, 1.7834535564861085, 0.946855457042318]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2922324835356256, 1.8129615521721645, 1.8044764395591202, 1.9879317957699059, 1.8275462246418088, 1.3516595335731199]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2922324835356256, 2.1653755475906027, 2.4017494569052302, 2.6696083100176775, 2.4012704757137766, 1.3516595335731199]}}