{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:32.533654", "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": "2011-Sep-26_to_2011-Sep-28_345.5_17.5"}, "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": 2011090002725}, "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": "September 26 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 28 2011"}, "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": 67627.35989717278}, "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"]}, "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": 17.5}, "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": 344.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 349.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 19.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.5, 18.25], [-14.25, 18.15], [-14.0, 18.25], [-13.75, 18.15], [-13.68, 18.18], [-13.65, 18.25], [-13.75, 18.5], [-13.65, 18.75], [-13.75, 19.0], [-13.65, 19.25], [-13.75, 19.5], [-13.53, 20.03], [-13.0, 20.25], [-12.47, 20.03], [-12.32, 19.68], [-11.97, 19.53], [-11.82, 19.18], [-11.75, 19.15], [-11.5, 19.25], [-10.97, 19.03], [-10.82, 18.68], [-10.75, 18.65], [-10.5, 18.75], [-9.97, 18.53], [-9.75, 18.0], [-9.85, 17.75], [-9.75, 17.5], [-9.97, 16.97], [-10.5, 16.75], [-10.75, 16.85], [-11.0, 16.75], [-11.25, 16.85], [-11.5, 16.75], [-12.03, 16.97], [-12.18, 17.32], [-12.25, 17.35], [-12.32, 17.32], [-12.47, 16.97], [-13.0, 16.75], [-13.25, 16.85], [-13.32, 16.82], [-13.47, 16.47], [-14.0, 16.25], [-14.25, 16.35], [-14.5, 16.25], [-14.75, 16.35], [-15.0, 16.25], [-15.53, 16.47], [-15.75, 17.0], [-15.53, 17.53], [-15.18, 17.68], [-15.03, 18.03], [-14.5, 18.25]]]]}, "2011-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.5, 18.25], [-14.25, 18.15], [-14.0, 18.25], [-13.75, 18.15], [-13.68, 18.18], [-13.65, 18.25], [-13.75, 18.5], [-13.65, 18.75], [-13.75, 19.0], [-13.65, 19.25], [-13.75, 19.5], [-13.53, 20.03], [-13.0, 20.25], [-12.47, 20.03], [-12.32, 19.68], [-11.97, 19.53], [-11.82, 19.18], [-11.75, 19.15], [-11.5, 19.25], [-10.97, 19.03], [-10.82, 18.68], [-10.75, 18.65], [-10.5, 18.75], [-9.97, 18.53], [-9.75, 18.0], [-9.85, 17.75], [-9.75, 17.5], [-9.97, 16.97], [-10.5, 16.75], [-10.75, 16.85], [-11.0, 16.75], [-11.25, 16.85], [-11.5, 16.75], [-12.03, 16.97], [-12.18, 17.32], [-12.25, 17.35], [-12.32, 17.32], [-12.47, 16.97], [-13.0, 16.75], [-13.25, 16.85], [-13.32, 16.82], [-13.47, 16.47], [-14.0, 16.25], [-14.25, 16.35], [-14.5, 16.25], [-14.75, 16.35], [-15.0, 16.25], [-15.53, 16.47], [-15.75, 17.0], [-15.53, 17.53], [-15.18, 17.68], [-15.03, 18.03], [-14.5, 18.25]]]]}, "2011-09-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.5, 18.25], [-14.25, 18.15], [-14.0, 18.25], [-13.75, 18.15], [-13.68, 18.18], [-13.65, 18.25], [-13.75, 18.5], [-13.65, 18.75], [-13.75, 19.0], [-13.65, 19.25], [-13.75, 19.5], [-13.53, 20.03], [-13.0, 20.25], [-12.47, 20.03], [-12.32, 19.68], [-11.97, 19.53], [-11.82, 19.18], [-11.75, 19.15], [-11.5, 19.25], [-10.97, 19.03], [-10.82, 18.68], [-10.75, 18.65], [-10.5, 18.75], [-9.97, 18.53], [-9.75, 18.0], [-9.85, 17.75], [-9.75, 17.5], [-9.97, 16.97], [-10.5, 16.75], [-10.75, 16.85], [-11.0, 16.75], [-11.25, 16.85], [-11.5, 16.75], [-12.03, 16.97], [-12.18, 17.32], [-12.25, 17.35], [-12.32, 17.32], [-12.47, 16.97], [-13.0, 16.75], [-13.25, 16.85], [-13.32, 16.82], [-13.47, 16.47], [-14.0, 16.25], [-14.25, 16.35], [-14.5, 16.25], [-14.75, 16.35], [-15.0, 16.25], [-15.53, 16.47], [-15.75, 17.0], [-15.53, 17.53], [-15.18, 17.68], [-15.03, 18.03], [-14.5, 18.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.380041735502289}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.975867394031937}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [35.21189023321392, 36.29542627535125, 35.56313649166498]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [36.85570099238794, 37.76586894440965, 36.831889829422835]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.5414649108365173, 3.5909155906851224, 2.79522168057417]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.021901855210558, 4.380041735502289, 4.250804926805188]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2595392020328213, 1.8166650584225437, 1.4487866989889344]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5788700536611358, 2.159945715793419, 2.240345226889107]}}