{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:34.677782", "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": "2010-Aug-27_to_2010-Aug-31_345.5_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": 2010080002870}, "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 27 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 31 2010"}, "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": 122762.69351569156}, "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": ["Gambia", "Senegal"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "Western-Africa"]}, "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": 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": 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": 341.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 347.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 15.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-08-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-18.75, 14.0], [-18.53, 14.53], [-18.0, 14.75], [-17.75, 14.65], [-17.5, 14.75], [-16.97, 14.53], [-16.75, 14.0], [-16.85, 13.75], [-16.75, 13.5], [-16.85, 13.25], [-16.75, 13.0], [-16.97, 12.47], [-17.5, 12.25], [-18.03, 12.47], [-18.25, 13.0], [-18.15, 13.25], [-18.18, 13.32], [-18.53, 13.47], [-18.75, 14.0]]]]}, "2010-08-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-18.75, 14.0], [-18.53, 14.53], [-18.0, 14.75], [-17.75, 14.65], [-17.68, 14.68], [-17.65, 14.75], [-17.75, 15.0], [-17.53, 15.53], [-17.18, 15.68], [-17.03, 16.03], [-16.5, 16.25], [-15.97, 16.03], [-15.82, 15.68], [-15.75, 15.65], [-15.5, 15.75], [-15.25, 15.65], [-15.18, 15.68], [-15.03, 16.03], [-14.5, 16.25], [-14.25, 16.15], [-14.0, 16.25], [-13.47, 16.03], [-13.32, 15.68], [-13.25, 15.65], [-13.0, 15.75], [-12.47, 15.53], [-12.32, 15.18], [-11.97, 15.03], [-11.75, 14.5], [-11.97, 13.97], [-12.32, 13.82], [-12.47, 13.47], [-13.0, 13.25], [-13.25, 13.35], [-13.5, 13.25], [-13.75, 13.35], [-14.0, 13.25], [-14.25, 13.35], [-14.5, 13.25], [-14.75, 13.35], [-15.0, 13.25], [-15.25, 13.35], [-15.32, 13.32], [-15.35, 13.25], [-15.25, 13.0], [-15.47, 12.47], [-16.0, 12.25], [-16.25, 12.35], [-16.5, 12.25], [-17.0, 12.46], [-17.5, 12.25], [-18.03, 12.47], [-18.25, 13.0], [-18.15, 13.25], [-18.18, 13.32], [-18.53, 13.47], [-18.75, 14.0]]]]}, "2010-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-18.75, 14.0], [-18.53, 14.53], [-18.0, 14.75], [-17.75, 14.65], [-17.68, 14.68], [-17.65, 14.75], [-17.75, 15.0], [-17.53, 15.53], [-17.18, 15.68], [-17.03, 16.03], [-16.5, 16.25], [-16.25, 16.15], [-16.0, 16.25], [-15.47, 16.03], [-15.32, 15.68], [-15.25, 15.65], [-15.18, 15.68], [-15.03, 16.03], [-14.5, 16.25], [-14.25, 16.15], [-14.0, 16.25], [-13.47, 16.03], [-13.32, 15.68], [-13.25, 15.65], [-13.0, 15.75], [-12.47, 15.53], [-12.32, 15.18], [-11.97, 15.03], [-11.75, 14.5], [-11.97, 13.97], [-12.32, 13.82], [-12.47, 13.47], [-13.0, 13.25], [-13.25, 13.35], [-13.5, 13.25], [-13.75, 13.35], [-14.0, 13.25], [-14.25, 13.35], [-14.5, 13.25], [-14.75, 13.35], [-15.0, 13.25], [-15.25, 13.35], [-15.32, 13.32], [-15.35, 13.25], [-15.25, 13.0], [-15.47, 12.47], [-16.0, 12.25], [-16.25, 12.35], [-16.5, 12.25], [-17.0, 12.46], [-17.5, 12.25], [-18.03, 12.47], [-18.25, 13.0], [-18.15, 13.25], [-18.18, 13.32], [-18.53, 13.47], [-18.75, 14.0]]]]}, "2010-08-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-18.03, 14.53], [-17.68, 14.68], [-17.65, 14.75], [-17.75, 15.0], [-17.53, 15.53], [-17.18, 15.68], [-17.03, 16.03], [-16.5, 16.25], [-16.25, 16.15], [-16.0, 16.25], [-15.47, 16.03], [-15.32, 15.68], [-15.25, 15.65], [-15.18, 15.68], [-15.03, 16.03], [-14.5, 16.25], [-14.25, 16.15], [-14.0, 16.25], [-13.47, 16.03], [-13.32, 15.68], [-13.25, 15.65], [-13.0, 15.75], [-12.47, 15.53], [-12.32, 15.18], [-11.97, 15.03], [-11.75, 14.5], [-11.97, 13.97], [-12.32, 13.82], [-12.47, 13.47], [-13.0, 13.25], [-13.25, 13.35], [-13.5, 13.25], [-13.75, 13.35], [-14.0, 13.25], [-14.25, 13.35], [-14.5, 13.25], [-14.75, 13.35], [-15.0, 13.25], [-15.25, 13.35], [-15.32, 13.32], [-15.35, 13.25], [-15.25, 13.0], [-15.47, 12.47], [-16.0, 12.25], [-16.25, 12.35], [-16.5, 12.25], [-17.03, 12.47], [-17.18, 12.82], [-17.25, 12.85], [-17.5, 12.75], [-18.03, 12.97], [-18.25, 13.5], [-18.15, 13.75], [-18.25, 14.0], [-18.03, 14.53]]]]}, "2010-08-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.25, 16.15], [-16.0, 16.25], [-15.47, 16.03], [-15.25, 15.5], [-15.47, 14.97], [-15.82, 14.82], [-15.97, 14.47], [-16.5, 14.25], [-16.75, 14.35], [-17.0, 14.25], [-17.53, 14.47], [-17.75, 15.0], [-17.53, 15.53], [-17.18, 15.68], [-17.03, 16.03], [-16.5, 16.25], [-16.25, 16.15]]], [[[-13.97, 16.03], [-13.75, 15.5], [-13.97, 14.97], [-14.5, 14.75], [-15.03, 14.97], [-15.25, 15.5], [-15.03, 16.03], [-14.5, 16.25], [-13.97, 16.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.136594450114899}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.7601813585003134}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.815403116918674, 29.22082327978677, 29.62237130349439, 29.539333499664963, 29.435014672072498]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.997310432462257, 31.03736312730615, 31.63370963442543, 32.02298213816562, 30.695262564070447]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.8709868097353421, 1.5649582183220887, 1.9830760867117039, 1.8613271004082423, 1.4166485607228423]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.9345605246265904, 2.4739129420404424, 3.136594450114899, 3.061414549884603, 1.715234351776303]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.403032700318358, 1.56451537043228, 2.000661283290508, 1.875988393067909, 1.575964646802745]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.496269572618473, 1.8960997678453873, 2.5455866112905583, 2.475024187777387, 2.0501011231405677]}}