{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:54:56.251705", "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-Aug-03_to_2023-Aug-05_14.0_29.5"}, "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": 2023080001238}, "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 03 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 05 2023"}, "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": 86521.2164132602}, "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": ["Libya"]}, "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": 29.5}, "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": 14.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "14.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 13.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 17.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 28.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 30.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[12.25, 30.0], [12.47, 30.53], [13.0, 30.75], [13.25, 30.65], [13.5, 30.75], [13.75, 30.65], [14.0, 30.75], [14.53, 30.53], [14.68, 30.18], [14.75, 30.15], [14.82, 30.18], [14.97, 30.53], [15.5, 30.75], [16.03, 30.53], [16.25, 30.0], [16.15, 29.75], [16.18, 29.68], [16.25, 29.65], [16.32, 29.68], [16.47, 30.03], [17.0, 30.25], [17.53, 30.03], [17.68, 29.68], [18.03, 29.53], [18.25, 29.0], [18.03, 28.47], [17.68, 28.32], [17.53, 27.97], [17.0, 27.75], [16.75, 27.85], [16.5, 27.75], [16.25, 27.85], [16.0, 27.75], [15.75, 27.85], [15.68, 27.82], [15.53, 27.47], [15.0, 27.25], [14.75, 27.35], [14.5, 27.25], [14.25, 27.35], [14.0, 27.25], [13.47, 27.47], [13.32, 27.82], [13.25, 27.85], [13.0, 27.75], [12.47, 27.97], [12.25, 28.5], [12.35, 28.75], [12.25, 29.0], [12.46, 29.5], [12.25, 30.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean", "Sahara"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.25, 29.0], [12.46, 29.5], [12.25, 30.0], [12.47, 30.53], [13.0, 30.75], [13.25, 30.65], [13.5, 30.75], [13.75, 30.65], [14.0, 30.75], [14.53, 30.53], [14.68, 30.18], [14.75, 30.15], [14.82, 30.18], [14.97, 30.53], [15.5, 30.75], [16.03, 30.53], [16.25, 30.0], [16.15, 29.75], [16.18, 29.68], [16.25, 29.65], [16.32, 29.68], [16.47, 30.03], [17.0, 30.25], [17.53, 30.03], [17.68, 29.68], [18.03, 29.53], [18.25, 29.0], [18.03, 28.47], [17.68, 28.32], [17.53, 27.97], [17.0, 27.75], [16.75, 27.85], [16.5, 27.75], [16.25, 27.85], [16.0, 27.75], [15.75, 27.85], [15.68, 27.82], [15.53, 27.47], [15.0, 27.25], [14.75, 27.35], [14.5, 27.25], [14.25, 27.35], [14.0, 27.25], [13.47, 27.47], [13.32, 27.82], [13.25, 27.85], [13.0, 27.75], [12.47, 27.97], [12.25, 28.5], [12.35, 28.75], [12.25, 29.0]]]]}, "2023-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.25, 29.0], [12.46, 29.5], [12.25, 30.0], [12.47, 30.53], [13.0, 30.75], [13.25, 30.65], [13.5, 30.75], [13.75, 30.65], [14.0, 30.75], [14.53, 30.53], [14.68, 30.18], [14.75, 30.15], [14.82, 30.18], [14.97, 30.53], [15.5, 30.75], [16.03, 30.53], [16.25, 30.0], [16.15, 29.75], [16.18, 29.68], [16.25, 29.65], [16.32, 29.68], [16.47, 30.03], [17.0, 30.25], [17.53, 30.03], [17.68, 29.68], [18.03, 29.53], [18.25, 29.0], [18.03, 28.47], [17.68, 28.32], [17.53, 27.97], [17.0, 27.75], [16.75, 27.85], [16.5, 27.75], [16.25, 27.85], [16.0, 27.75], [15.75, 27.85], [15.68, 27.82], [15.53, 27.47], [15.0, 27.25], [14.75, 27.35], [14.5, 27.25], [14.25, 27.35], [14.0, 27.25], [13.47, 27.47], [13.32, 27.82], [13.25, 27.85], [13.0, 27.75], [12.47, 27.97], [12.25, 28.5], [12.35, 28.75], [12.25, 29.0]]]]}, "2023-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.25, 29.0], [12.46, 29.5], [12.25, 30.0], [12.47, 30.53], [13.0, 30.75], [13.25, 30.65], [13.5, 30.75], [13.75, 30.65], [14.0, 30.75], [14.53, 30.53], [14.68, 30.18], [14.75, 30.15], [14.82, 30.18], [14.97, 30.53], [15.5, 30.75], [16.03, 30.53], [16.25, 30.0], [16.15, 29.75], [16.18, 29.68], [16.25, 29.65], [16.32, 29.68], [16.47, 30.03], [17.0, 30.25], [17.53, 30.03], [17.68, 29.68], [18.03, 29.53], [18.25, 29.0], [18.03, 28.47], [17.68, 28.32], [17.53, 27.97], [17.0, 27.75], [16.75, 27.85], [16.5, 27.75], [16.25, 27.85], [16.0, 27.75], [15.75, 27.85], [15.68, 27.82], [15.53, 27.47], [15.0, 27.25], [14.75, 27.35], [14.5, 27.25], [14.25, 27.35], [14.0, 27.25], [13.47, 27.47], [13.32, 27.82], [13.25, 27.85], [13.0, 27.75], [12.47, 27.97], [12.25, 28.5], [12.35, 28.75], [12.25, 29.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.510725029227217}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.9427518275639777}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.796645625072415, 33.759564975942794, 34.57377483130068]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [34.13446480171348, 35.02420040626549, 35.641874197537334]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.0639897877004447, 3.9929775962714906, 4.771288098719998]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.577144151907646, 5.321368449484055, 5.510725029227217]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4645040899577138, 1.8432675013123923, 2.205228419527176]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.624778040113121, 2.4225122216180517, 2.4317453283518002]}}