{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:25:30.620748", "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-Dec-09_to_2022-Dec-11_13.0_2.0"}, "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": 2022120002004}, "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": "December 09 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 11 2022"}, "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": 83441.92029475613}, "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", "Gabon"]}, "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": 2.0}, "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": 13.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "13.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 11.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 14.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -2.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 2.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[10.97, 1.53], [11.5, 1.75], [11.75, 1.65], [11.82, 1.68], [11.85, 1.75], [11.75, 2.0], [11.97, 2.53], [12.5, 2.75], [12.75, 2.65], [13.0, 2.75], [13.25, 2.65], [13.5, 2.75], [13.75, 2.65], [14.0, 2.75], [14.53, 2.53], [14.75, 2.0], [14.54, 1.5], [14.75, 1.0], [14.65, 0.75], [14.75, 0.5], [14.65, 0.25], [14.75, 0.0], [14.65, -0.25], [14.75, -0.5], [14.65, -0.75], [14.75, -1.0], [14.65, -1.25], [14.75, -1.5], [14.65, -1.75], [14.75, -2.0], [14.53, -2.53], [14.0, -2.75], [13.47, -2.53], [13.25, -2.0], [13.35, -1.75], [13.32, -1.68], [13.25, -1.65], [13.0, -1.75], [12.47, -1.53], [12.25, -1.0], [12.35, -0.75], [12.32, -0.68], [11.97, -0.53], [11.82, -0.18], [11.47, -0.03], [11.32, 0.32], [10.97, 0.47], [10.75, 1.0], [10.97, 1.53]]]]}}, "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": {"2022-12-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.97, 0.47], [10.75, 1.0], [10.97, 1.53], [11.5, 1.75], [11.75, 1.65], [11.82, 1.68], [11.85, 1.75], [11.75, 2.0], [11.97, 2.53], [12.5, 2.75], [12.75, 2.65], [13.0, 2.75], [13.25, 2.65], [13.5, 2.75], [13.75, 2.65], [14.0, 2.75], [14.53, 2.53], [14.75, 2.0], [14.54, 1.5], [14.75, 1.0], [14.65, 0.75], [14.75, 0.5], [14.65, 0.25], [14.75, 0.0], [14.65, -0.25], [14.75, -0.5], [14.65, -0.75], [14.75, -1.0], [14.65, -1.25], [14.75, -1.5], [14.65, -1.75], [14.75, -2.0], [14.53, -2.53], [14.0, -2.75], [13.47, -2.53], [13.25, -2.0], [13.35, -1.75], [13.32, -1.68], [13.25, -1.65], [13.0, -1.75], [12.47, -1.53], [12.25, -1.0], [12.35, -0.75], [12.32, -0.68], [11.97, -0.53], [11.82, -0.18], [11.47, -0.03], [11.32, 0.32], [10.97, 0.47]]]]}, "2022-12-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.97, 0.47], [10.75, 1.0], [10.97, 1.53], [11.5, 1.75], [11.75, 1.65], [11.82, 1.68], [11.85, 1.75], [11.75, 2.0], [11.97, 2.53], [12.5, 2.75], [12.75, 2.65], [13.0, 2.75], [13.25, 2.65], [13.5, 2.75], [13.75, 2.65], [14.0, 2.75], [14.53, 2.53], [14.75, 2.0], [14.54, 1.5], [14.75, 1.0], [14.65, 0.75], [14.75, 0.5], [14.65, 0.25], [14.75, 0.0], [14.65, -0.25], [14.75, -0.5], [14.65, -0.75], [14.75, -1.0], [14.65, -1.25], [14.75, -1.5], [14.65, -1.75], [14.75, -2.0], [14.53, -2.53], [14.0, -2.75], [13.47, -2.53], [13.25, -2.0], [13.35, -1.75], [13.32, -1.68], [13.25, -1.65], [13.0, -1.75], [12.47, -1.53], [12.25, -1.0], [12.35, -0.75], [12.32, -0.68], [11.97, -0.53], [11.82, -0.18], [11.47, -0.03], [11.32, 0.32], [10.97, 0.47]]]]}, "2022-12-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.97, 0.47], [10.75, 1.0], [10.97, 1.53], [11.5, 1.75], [11.75, 1.65], [11.82, 1.68], [11.85, 1.75], [11.75, 2.0], [11.97, 2.53], [12.5, 2.75], [12.75, 2.65], [13.0, 2.75], [13.25, 2.65], [13.5, 2.75], [13.75, 2.65], [14.0, 2.75], [14.53, 2.53], [14.75, 2.0], [14.54, 1.5], [14.75, 1.0], [14.65, 0.75], [14.75, 0.5], [14.65, 0.25], [14.75, 0.0], [14.65, -0.25], [14.75, -0.5], [14.65, -0.75], [14.75, -1.0], [14.65, -1.25], [14.75, -1.5], [14.65, -1.75], [14.75, -2.0], [14.53, -2.53], [14.0, -2.75], [13.47, -2.53], [13.25, -2.0], [13.35, -1.75], [13.32, -1.68], [13.25, -1.65], [13.0, -1.75], [12.47, -1.53], [12.25, -1.0], [12.35, -0.75], [12.32, -0.68], [11.97, -0.53], [11.82, -0.18], [11.47, -0.03], [11.32, 0.32], [10.97, 0.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.477381484810053}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.6635223915653747}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.866741233128494, 25.989367189126256, 26.10833937381335]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.392068463826945, 26.876639630218165, 26.736276411443498]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.565344123742791, 1.6568666450527556, 1.7683564059005776]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.3266807909756153, 2.2065047819945676, 2.477381484810053]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7457402362860839, 1.8910531246367663, 2.0254812289620805]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.6165718628848835, 2.552672651447282, 3.096046192069283]}}