{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:53:01.224309", "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": "2024-Aug-19_to_2024-Aug-22_345.5_25.0"}, "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": 2024080002164}, "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": "August 19 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 22 2024"}, "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": 72544.55276995993}, "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": ["Mauritania", "Morocco"]}, "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": ["North Atlantic Ocean"]}, "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": 25.0}, "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": 345.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "345.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 344.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 348.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 23.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 27.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.75, 25.0], [-15.53, 25.53], [-15.18, 25.68], [-15.15, 25.75], [-15.25, 26.0], [-15.03, 26.53], [-14.5, 26.75], [-14.25, 26.65], [-14.18, 26.68], [-14.15, 26.75], [-14.25, 27.0], [-14.03, 27.53], [-13.5, 27.75], [-12.97, 27.53], [-12.82, 27.18], [-12.75, 27.15], [-12.5, 27.25], [-11.97, 27.03], [-11.82, 26.68], [-11.47, 26.53], [-11.25, 26.0], [-11.35, 25.75], [-11.25, 25.5], [-11.47, 24.97], [-12.0, 24.75], [-12.25, 24.85], [-12.32, 24.82], [-12.47, 24.47], [-12.82, 24.32], [-12.97, 23.97], [-13.5, 23.75], [-13.75, 23.85], [-14.0, 23.75], [-14.25, 23.85], [-14.5, 23.75], [-14.75, 23.85], [-14.82, 23.82], [-14.97, 23.47], [-15.5, 23.25], [-16.03, 23.47], [-16.25, 24.0], [-16.03, 24.53], [-15.68, 24.68], [-15.65, 24.75], [-15.75, 25.0]]]]}, "2024-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.75, 25.0], [-15.53, 25.53], [-15.18, 25.68], [-15.15, 25.75], [-15.25, 26.0], [-15.03, 26.53], [-14.5, 26.75], [-14.25, 26.65], [-14.18, 26.68], [-14.15, 26.75], [-14.25, 27.0], [-14.03, 27.53], [-13.5, 27.75], [-12.97, 27.53], [-12.82, 27.18], [-12.75, 27.15], [-12.5, 27.25], [-11.97, 27.03], [-11.82, 26.68], [-11.47, 26.53], [-11.25, 26.0], [-11.35, 25.75], [-11.25, 25.5], [-11.47, 24.97], [-12.0, 24.75], [-12.25, 24.85], [-12.32, 24.82], [-12.47, 24.47], [-12.82, 24.32], [-12.97, 23.97], [-13.5, 23.75], [-13.75, 23.85], [-14.0, 23.75], [-14.25, 23.85], [-14.5, 23.75], [-14.75, 23.85], [-14.82, 23.82], [-14.97, 23.47], [-15.5, 23.25], [-16.03, 23.47], [-16.25, 24.0], [-16.03, 24.53], [-15.68, 24.68], [-15.65, 24.75], [-15.75, 25.0]]]]}, "2024-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.75, 25.0], [-15.53, 25.53], [-15.18, 25.68], [-15.15, 25.75], [-15.25, 26.0], [-15.03, 26.53], [-14.5, 26.75], [-14.25, 26.65], [-14.18, 26.68], [-14.15, 26.75], [-14.25, 27.0], [-14.03, 27.53], [-13.5, 27.75], [-12.97, 27.53], [-12.82, 27.18], [-12.75, 27.15], [-12.5, 27.25], [-11.97, 27.03], [-11.82, 26.68], [-11.47, 26.53], [-11.25, 26.0], [-11.35, 25.75], [-11.25, 25.5], [-11.47, 24.97], [-12.0, 24.75], [-12.25, 24.85], [-12.32, 24.82], [-12.47, 24.47], [-12.82, 24.32], [-12.97, 23.97], [-13.5, 23.75], [-13.75, 23.85], [-14.0, 23.75], [-14.25, 23.85], [-14.5, 23.75], [-14.75, 23.85], [-14.82, 23.82], [-14.97, 23.47], [-15.5, 23.25], [-16.03, 23.47], [-16.25, 24.0], [-16.03, 24.53], [-15.68, 24.68], [-15.65, 24.75], [-15.75, 25.0]]]]}, "2024-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.75, 25.0], [-15.53, 25.53], [-15.0, 25.75], [-14.75, 25.65], [-14.68, 25.68], [-14.53, 26.03], [-14.0, 26.25], [-13.47, 26.03], [-13.32, 25.68], [-13.25, 25.65], [-13.0, 25.75], [-12.47, 25.53], [-12.25, 25.0], [-12.47, 24.47], [-12.82, 24.32], [-12.97, 23.97], [-13.5, 23.75], [-13.75, 23.85], [-14.0, 23.75], [-14.25, 23.85], [-14.5, 23.75], [-14.75, 23.85], [-14.82, 23.82], [-14.97, 23.47], [-15.5, 23.25], [-16.03, 23.47], [-16.25, 24.0], [-16.03, 24.53], [-15.68, 24.68], [-15.65, 24.75], [-15.75, 25.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.690689568964785}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.085988128038684}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.3456210515165, 31.230791024581322, 32.02409743857919, 31.148872026537845]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [34.771035562186285, 34.85403759821378, 36.765984403552295, 34.67008502167329]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.739398465315048, 4.593876614503243, 5.355323190677587, 4.068126214777279]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.690689568964785, 6.254867629493617, 7.096005025210047, 4.993200946958439]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [2.33082083569904, 1.8154553768046466, 2.078022518269293, 1.6007287767632314]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.983014024714803, 2.529151939618103, 2.60941676899644, 1.9354836580376331]}}