{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-05-20 10:52:22.963013", "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": "2026-Mar-11_to_2026-Mar-14_17.5_0.5"}, "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": 2026030001658}, "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": "March 11 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 14 2026"}, "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": 86528.5262383759}, "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", "Congo DRC"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa"]}, "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": 0.5}, "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": 17.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "17.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 15.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 18.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -1.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 2.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-03-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.0, 0.25], [18.53, 0.03], [18.75, -0.5], [18.53, -1.03], [18.0, -1.25], [17.47, -1.03], [17.25, -0.5], [17.47, 0.03], [18.0, 0.25]]]]}, "2026-03-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.47, 2.03], [15.82, 2.18], [15.97, 2.53], [16.32, 2.68], [16.47, 3.03], [17.0, 3.25], [17.25, 3.15], [17.5, 3.25], [18.03, 3.03], [18.25, 2.5], [18.15, 2.25], [18.18, 2.18], [18.25, 2.15], [18.5, 2.25], [19.03, 2.03], [19.25, 1.5], [19.03, 0.97], [18.63, 0.8], [18.75, 0.5], [18.54, 0.0], [18.75, -0.5], [18.53, -1.03], [18.18, -1.18], [18.03, -1.53], [17.5, -1.75], [17.25, -1.65], [17.0, -1.75], [16.47, -1.53], [16.32, -1.18], [15.97, -1.03], [15.75, -0.5], [15.85, -0.25], [15.75, 0.0], [15.85, 0.25], [15.82, 0.32], [15.47, 0.47], [15.25, 1.0], [15.35, 1.25], [15.25, 1.5], [15.47, 2.03]]]]}, "2026-03-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.47, 2.03], [15.82, 2.18], [15.97, 2.53], [16.32, 2.68], [16.47, 3.03], [17.0, 3.25], [17.25, 3.15], [17.5, 3.25], [18.03, 3.03], [18.25, 2.5], [18.15, 2.25], [18.18, 2.18], [18.25, 2.15], [18.5, 2.25], [19.03, 2.03], [19.25, 1.5], [19.03, 0.97], [18.63, 0.8], [18.75, 0.5], [18.54, 0.0], [18.75, -0.5], [18.53, -1.03], [18.18, -1.18], [18.03, -1.53], [17.5, -1.75], [17.25, -1.65], [17.0, -1.75], [16.47, -1.53], [16.32, -1.18], [15.97, -1.03], [15.75, -0.5], [15.85, -0.25], [15.75, 0.0], [15.85, 0.25], [15.82, 0.32], [15.47, 0.47], [15.25, 1.0], [15.35, 1.25], [15.25, 1.5], [15.47, 2.03]]]]}, "2026-03-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.47, 2.03], [15.82, 2.18], [15.97, 2.53], [16.32, 2.68], [16.47, 3.03], [17.0, 3.25], [17.25, 3.15], [17.5, 3.25], [18.03, 3.03], [18.25, 2.5], [18.15, 2.25], [18.18, 2.18], [18.25, 2.15], [18.5, 2.25], [19.03, 2.03], [19.25, 1.5], [19.03, 0.97], [18.63, 0.8], [18.75, 0.5], [18.54, 0.0], [18.75, -0.5], [18.53, -1.03], [18.18, -1.18], [18.03, -1.53], [17.5, -1.75], [17.25, -1.65], [17.0, -1.75], [16.47, -1.53], [16.32, -1.18], [15.97, -1.03], [15.75, -0.5], [15.85, -0.25], [15.75, 0.0], [15.85, 0.25], [15.82, 0.32], [15.47, 0.47], [15.25, 1.0], [15.35, 1.25], [15.25, 1.5], [15.47, 2.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.897659439989866}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.998708292245775}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.663327789306663, 28.20871433076411, 28.129323396228585, 28.454886736188655]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.663327789306663, 29.176819101969443, 28.97589263916018, 29.740141805013025]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.5246749418063814, 1.9111922789116664, 1.8851172728911791, 2.216745087450172]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.5246749418063814, 2.197933267482597, 2.468333357759434, 2.897659439989866]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3515569479182896, 1.6358476691621422, 1.6194456733626765, 2.0044166253945304]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3515569479182896, 1.9064735907679324, 2.2063136034934496, 2.564215404855015]}}