{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:12.351256", "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": "2012-Aug-01_to_2012-Aug-04_24.5_26.0"}, "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": 2012080001519}, "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 01 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 04 2012"}, "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": 102708.1598452871}, "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": ["Egypt", "Libya"]}, "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": 26.0}, "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": 22.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 27.25}, "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": 28.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-08-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[22.25, 27.5], [22.47, 28.03], [22.82, 28.18], [22.97, 28.53], [23.5, 28.75], [23.75, 28.65], [24.0, 28.75], [24.53, 28.53], [24.68, 28.18], [25.03, 28.03], [25.18, 27.68], [25.53, 27.53], [25.75, 27.0], [25.65, 26.75], [25.75, 26.5], [25.65, 26.25], [25.68, 26.18], [26.03, 26.03], [26.25, 25.5], [26.03, 24.97], [25.5, 24.75], [25.25, 24.85], [25.0, 24.75], [24.47, 24.97], [24.32, 25.32], [24.25, 25.35], [24.0, 25.25], [23.47, 25.47], [23.25, 26.0], [23.35, 26.25], [23.32, 26.32], [22.97, 26.47], [22.82, 26.82], [22.47, 26.97], [22.25, 27.5]]]]}, "2012-08-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[22.47, 28.03], [22.82, 28.18], [22.97, 28.53], [23.5, 28.75], [23.75, 28.65], [24.0, 28.75], [24.53, 28.53], [24.68, 28.18], [25.03, 28.03], [25.18, 27.68], [25.53, 27.53], [25.68, 27.18], [25.75, 27.15], [26.0, 27.25], [26.25, 27.15], [26.5, 27.25], [27.03, 27.03], [27.18, 26.68], [27.53, 26.53], [27.75, 26.0], [27.54, 25.5], [27.75, 25.0], [27.53, 24.47], [27.18, 24.32], [27.03, 23.97], [26.68, 23.82], [26.53, 23.47], [26.0, 23.25], [25.47, 23.47], [25.32, 23.82], [24.97, 23.97], [24.82, 24.32], [24.47, 24.47], [24.25, 25.0], [24.35, 25.25], [24.32, 25.32], [24.25, 25.35], [24.0, 25.25], [23.47, 25.47], [23.32, 25.82], [23.25, 25.85], [23.0, 25.75], [22.47, 25.97], [22.25, 26.5], [22.46, 27.0], [22.25, 27.5], [22.47, 28.03]]]]}, "2012-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[22.47, 28.03], [22.82, 28.18], [22.97, 28.53], [23.5, 28.75], [23.75, 28.65], [24.0, 28.75], [24.53, 28.53], [24.68, 28.18], [25.03, 28.03], [25.18, 27.68], [25.53, 27.53], [25.68, 27.18], [25.75, 27.15], [26.0, 27.25], [26.25, 27.15], [26.5, 27.25], [27.03, 27.03], [27.18, 26.68], [27.53, 26.53], [27.75, 26.0], [27.54, 25.5], [27.75, 25.0], [27.53, 24.47], [27.18, 24.32], [27.03, 23.97], [26.68, 23.82], [26.53, 23.47], [26.0, 23.25], [25.47, 23.47], [25.32, 23.82], [24.97, 23.97], [24.82, 24.32], [24.47, 24.47], [24.25, 25.0], [24.35, 25.25], [24.32, 25.32], [24.25, 25.35], [24.0, 25.25], [23.47, 25.47], [23.32, 25.82], [23.25, 25.85], [23.0, 25.75], [22.47, 25.97], [22.25, 26.5], [22.46, 27.0], [22.25, 27.5], [22.47, 28.03]]]]}, "2012-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[22.47, 25.97], [22.25, 26.5], [22.47, 27.03], [23.0, 27.25], [23.25, 27.15], [23.5, 27.25], [23.75, 27.15], [24.0, 27.25], [24.25, 27.15], [24.5, 27.25], [24.75, 27.15], [25.0, 27.25], [25.25, 27.15], [25.5, 27.25], [25.75, 27.15], [26.0, 27.25], [26.25, 27.15], [26.5, 27.25], [27.03, 27.03], [27.18, 26.68], [27.53, 26.53], [27.75, 26.0], [27.54, 25.5], [27.75, 25.0], [27.53, 24.47], [27.18, 24.32], [27.03, 23.97], [26.68, 23.82], [26.53, 23.47], [26.0, 23.25], [25.47, 23.47], [25.32, 23.82], [24.97, 23.97], [24.82, 24.32], [24.47, 24.47], [24.25, 25.0], [24.35, 25.25], [24.32, 25.32], [24.25, 25.35], [24.0, 25.25], [23.47, 25.47], [23.32, 25.82], [23.25, 25.85], [23.0, 25.75], [22.47, 25.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.577414883609322}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.7833886184831997}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [34.18146959153012, 33.89261588598515, 33.668551851173845, 33.5599973069958]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [35.25590037562921, 35.37994600941505, 35.57106137390991, 35.59667133327247]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.479587572486624, 2.8972583671703247, 2.7286955305974168, 2.88964152320792]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.9358515076069693, 3.4730007615012255, 3.3083439206664593, 3.577414883609322]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5271483050675865, 1.760531380843679, 1.6514048208072305, 1.7548210628830225]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8989099823254438, 2.0786695382238602, 1.9684999220293096, 2.14837142374499]}}