{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:35:47.471462", "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-30_to_2023-Jul-04_11.5_15.5"}, "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": 2023060002759}, "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 30 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 04 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 59527.38994469225}, "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": ["Chad", "Niger"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": 15.5}, "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": 11.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "11.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 10.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 14.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 14.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 16.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-06-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.25, 15.5], [10.47, 16.03], [10.82, 16.18], [10.97, 16.53], [11.32, 16.68], [11.47, 17.03], [12.0, 17.25], [12.25, 17.15], [12.5, 17.25], [13.03, 17.03], [13.18, 16.68], [13.25, 16.65], [13.5, 16.75], [14.03, 16.53], [14.25, 16.0], [14.15, 15.75], [14.25, 15.5], [14.03, 14.97], [13.5, 14.75], [13.25, 14.85], [13.18, 14.82], [13.03, 14.47], [12.5, 14.25], [12.25, 14.35], [12.0, 14.25], [11.75, 14.35], [11.5, 14.25], [10.97, 14.47], [10.82, 14.82], [10.47, 14.97], [10.25, 15.5]]]]}, "2023-07-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.25, 15.5], [10.47, 16.03], [10.82, 16.18], [10.85, 16.25], [10.75, 16.5], [10.97, 17.03], [11.5, 17.25], [11.75, 17.15], [12.0, 17.25], [12.25, 17.15], [12.5, 17.25], [13.03, 17.03], [13.18, 16.68], [13.25, 16.65], [13.5, 16.75], [14.03, 16.53], [14.18, 16.18], [14.53, 16.03], [14.75, 15.5], [14.65, 15.25], [14.75, 15.0], [14.53, 14.47], [14.0, 14.25], [13.75, 14.35], [13.5, 14.25], [13.0, 14.46], [12.5, 14.25], [12.25, 14.35], [12.0, 14.25], [11.75, 14.35], [11.5, 14.25], [10.97, 14.47], [10.82, 14.82], [10.47, 14.97], [10.25, 15.5]]]]}, "2023-07-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.25, 15.5], [10.47, 16.03], [10.82, 16.18], [10.85, 16.25], [10.75, 16.5], [10.97, 17.03], [11.5, 17.25], [11.75, 17.15], [12.0, 17.25], [12.25, 17.15], [12.5, 17.25], [13.03, 17.03], [13.18, 16.68], [13.25, 16.65], [13.5, 16.75], [14.03, 16.53], [14.18, 16.18], [14.53, 16.03], [14.75, 15.5], [14.65, 15.25], [14.75, 15.0], [14.53, 14.47], [14.0, 14.25], [13.75, 14.35], [13.5, 14.25], [13.0, 14.46], [12.5, 14.25], [12.25, 14.35], [12.0, 14.25], [11.75, 14.35], [11.5, 14.25], [10.97, 14.47], [10.82, 14.82], [10.47, 14.97], [10.25, 15.5]]]]}, "2023-07-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.25, 15.5], [10.47, 16.03], [10.82, 16.18], [10.85, 16.25], [10.75, 16.5], [10.97, 17.03], [11.5, 17.25], [11.75, 17.15], [12.0, 17.25], [12.53, 17.03], [12.68, 16.68], [12.75, 16.65], [13.0, 16.75], [13.25, 16.65], [13.5, 16.75], [14.03, 16.53], [14.18, 16.18], [14.53, 16.03], [14.75, 15.5], [14.65, 15.25], [14.75, 15.0], [14.53, 14.47], [14.0, 14.25], [13.75, 14.35], [13.5, 14.25], [13.0, 14.46], [12.5, 14.25], [12.25, 14.35], [12.0, 14.25], [11.75, 14.35], [11.5, 14.25], [10.97, 14.47], [10.82, 14.82], [10.47, 14.97], [10.25, 15.5]]]]}, "2023-07-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.0, 15.75], [14.53, 15.53], [14.75, 15.0], [14.53, 14.47], [14.0, 14.25], [13.47, 14.47], [13.25, 15.0], [13.47, 15.53], [14.0, 15.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.1711104905210163}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.6996123932866671}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [34.46024182244969, 34.616572012130064, 34.42948195426595, 34.37101082618443, 34.26253423499429]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [34.86342655666368, 35.25351733436946, 34.9615282724439, 34.90913490616265, 34.26253423499429]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.6489206917319024, 1.8263875945292114, 1.6700765455793403, 1.648232649296233, 1.5421076832768108]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.8590649542400115, 2.1711104905210163, 1.9370946357161074, 2.0321110399300437, 1.5421076832768108]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4633988238515858, 1.6107748126894954, 1.4778076038626173, 1.4231490097924335, 1.257236436783493]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7166294745938104, 1.8939487280243812, 1.796683359936276, 1.7636069053978565, 1.257236436783493]}}