{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:05:55.038989", "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": "2025-Jun-01_to_2025-Jun-03_24.5_3.0"}, "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": 2025060001196}, "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 01 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 03 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 58660.70059894026}, "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"]}, "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": 3.0}, "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": 24.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "24.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 23.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 25.5}, "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": 4.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[22.82, 4.18], [22.97, 4.53], [23.5, 4.75], [24.03, 4.53], [24.18, 4.18], [24.53, 4.03], [24.68, 3.68], [24.75, 3.65], [25.0, 3.75], [25.25, 3.65], [25.5, 3.75], [26.03, 3.53], [26.25, 3.0], [26.15, 2.75], [26.25, 2.5], [26.15, 2.25], [26.25, 2.0], [26.03, 1.47], [25.68, 1.32], [25.53, 0.97], [25.0, 0.75], [24.5, 0.96], [24.0, 0.75], [23.47, 0.97], [23.25, 1.5], [23.46, 2.0], [23.32, 2.32], [23.25, 2.35], [23.0, 2.25], [22.47, 2.47], [22.25, 3.0], [22.35, 3.25], [22.25, 3.5], [22.47, 4.03], [22.82, 4.18]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-06-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[22.25, 3.5], [22.47, 4.03], [22.82, 4.18], [22.97, 4.53], [23.5, 4.75], [24.03, 4.53], [24.18, 4.18], [24.53, 4.03], [24.68, 3.68], [24.75, 3.65], [25.0, 3.75], [25.25, 3.65], [25.5, 3.75], [26.03, 3.53], [26.25, 3.0], [26.15, 2.75], [26.25, 2.5], [26.15, 2.25], [26.25, 2.0], [26.03, 1.47], [25.68, 1.32], [25.53, 0.97], [25.0, 0.75], [24.5, 0.96], [24.0, 0.75], [23.47, 0.97], [23.25, 1.5], [23.46, 2.0], [23.32, 2.32], [23.25, 2.35], [23.0, 2.25], [22.47, 2.47], [22.25, 3.0], [22.35, 3.25], [22.25, 3.5]]]]}, "2025-06-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[22.25, 3.5], [22.47, 4.03], [22.82, 4.18], [22.97, 4.53], [23.5, 4.75], [24.03, 4.53], [24.18, 4.18], [24.53, 4.03], [24.68, 3.68], [24.75, 3.65], [25.0, 3.75], [25.25, 3.65], [25.5, 3.75], [26.03, 3.53], [26.25, 3.0], [26.15, 2.75], [26.25, 2.5], [26.15, 2.25], [26.25, 2.0], [26.03, 1.47], [25.68, 1.32], [25.53, 0.97], [25.0, 0.75], [24.5, 0.96], [24.0, 0.75], [23.47, 0.97], [23.25, 1.5], [23.46, 2.0], [23.32, 2.32], [23.25, 2.35], [23.0, 2.25], [22.47, 2.47], [22.25, 3.0], [22.35, 3.25], [22.25, 3.5]]]]}, "2025-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[22.25, 3.5], [22.47, 4.03], [22.82, 4.18], [22.97, 4.53], [23.5, 4.75], [24.03, 4.53], [24.18, 4.18], [24.53, 4.03], [24.68, 3.68], [24.75, 3.65], [25.0, 3.75], [25.25, 3.65], [25.5, 3.75], [26.03, 3.53], [26.25, 3.0], [26.15, 2.75], [26.25, 2.5], [26.15, 2.25], [26.25, 2.0], [26.03, 1.47], [25.68, 1.32], [25.53, 0.97], [25.0, 0.75], [24.5, 0.96], [24.0, 0.75], [23.47, 0.97], [23.25, 1.5], [23.46, 2.0], [23.32, 2.32], [23.25, 2.35], [23.0, 2.25], [22.47, 2.47], [22.25, 3.0], [22.35, 3.25], [22.25, 3.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.5624624922377848}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.2933823909803768}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.336857364052264, 26.951216098718533, 27.180851705450777]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.264077758789085, 28.108900960286462, 28.605733489990257]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.803311364654525, 2.4249442213801564, 2.6518915869064497]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.3324688363612154, 3.0768456505072663, 3.5624624922377848]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8626896011575882, 2.5984847854189335, 2.8529169258809124]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.327082607405746, 2.982301415091714, 3.7621708183161613]}}