{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:26.551785", "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-03_to_2011-Sep-05_346.5_11.5"}, "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": 2011090001736}, "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 03 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 05 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": 78849.00287138514}, "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": ["Guinea", "Guinea-Bissau", "Senegal", "Sierra Leone"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": []}, "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": 11.5}, "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": 346.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "346.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 345.25}, "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": 8.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 12.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.15, 11.75], [-15.25, 12.0], [-15.03, 12.53], [-14.68, 12.68], [-14.53, 13.03], [-14.0, 13.25], [-13.47, 13.03], [-13.32, 12.68], [-13.25, 12.65], [-13.18, 12.68], [-13.03, 13.03], [-12.5, 13.25], [-12.25, 13.15], [-12.0, 13.25], [-11.47, 13.03], [-11.25, 12.5], [-11.35, 12.25], [-11.25, 12.0], [-11.47, 11.47], [-12.0, 11.25], [-11.47, 11.03], [-11.25, 10.5], [-11.47, 9.97], [-11.82, 9.82], [-11.97, 9.47], [-12.37, 9.3], [-12.25, 9.0], [-12.47, 8.47], [-13.0, 8.25], [-13.53, 8.47], [-13.68, 8.82], [-14.03, 8.97], [-14.18, 9.32], [-14.53, 9.47], [-14.75, 10.0], [-14.65, 10.25], [-14.68, 10.32], [-15.03, 10.47], [-15.25, 11.0], [-15.15, 11.25], [-15.25, 11.5], [-15.15, 11.75]], [[-12.25, 11.35], [-12.32, 11.32], [-12.43, 11.07], [-12.0, 11.25], [-12.25, 11.35]]]]}, "2011-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.15, 11.75], [-15.25, 12.0], [-15.03, 12.53], [-14.68, 12.68], [-14.53, 13.03], [-14.0, 13.25], [-13.47, 13.03], [-13.32, 12.68], [-13.25, 12.65], [-13.18, 12.68], [-13.03, 13.03], [-12.5, 13.25], [-12.25, 13.15], [-12.0, 13.25], [-11.47, 13.03], [-11.25, 12.5], [-11.35, 12.25], [-11.25, 12.0], [-11.47, 11.47], [-12.0, 11.25], [-11.47, 11.03], [-11.25, 10.5], [-11.47, 9.97], [-11.82, 9.82], [-11.97, 9.47], [-12.37, 9.3], [-12.25, 9.0], [-12.47, 8.47], [-13.0, 8.25], [-13.53, 8.47], [-13.68, 8.82], [-14.03, 8.97], [-14.18, 9.32], [-14.53, 9.47], [-14.75, 10.0], [-14.65, 10.25], [-14.68, 10.32], [-15.03, 10.47], [-15.25, 11.0], [-15.15, 11.25], [-15.25, 11.5], [-15.15, 11.75]], [[-12.25, 11.35], [-12.32, 11.32], [-12.43, 11.07], [-12.0, 11.25], [-12.25, 11.35]]]]}, "2011-09-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.15, 11.75], [-15.25, 12.0], [-15.03, 12.53], [-14.68, 12.68], [-14.53, 13.03], [-14.0, 13.25], [-13.47, 13.03], [-13.32, 12.68], [-13.25, 12.65], [-13.18, 12.68], [-13.03, 13.03], [-12.5, 13.25], [-12.25, 13.15], [-12.0, 13.25], [-11.47, 13.03], [-11.25, 12.5], [-11.35, 12.25], [-11.25, 12.0], [-11.47, 11.47], [-12.0, 11.25], [-11.47, 11.03], [-11.25, 10.5], [-11.47, 9.97], [-11.82, 9.82], [-11.97, 9.47], [-12.37, 9.3], [-12.25, 9.0], [-12.47, 8.47], [-13.0, 8.25], [-13.53, 8.47], [-13.68, 8.82], [-14.03, 8.97], [-14.18, 9.32], [-14.53, 9.47], [-14.75, 10.0], [-14.65, 10.25], [-14.68, 10.32], [-15.03, 10.47], [-15.25, 11.0], [-15.15, 11.25], [-15.25, 11.5], [-15.15, 11.75]], [[-12.25, 11.35], [-12.32, 11.32], [-12.43, 11.07], [-12.0, 11.25], [-12.25, 11.35]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.181587029681907}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.4583728625807293}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.381594156872097, 26.40862124740704, 26.57807403243868]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.620741827322433, 28.338534442912703, 28.649336916600078]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.3976674764962393, 1.4143246187242238, 1.5631264925217248]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.831412752647907, 1.8607557717364216, 2.181587029681907]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7369743347355329, 1.7510179940948982, 1.8742720172584322]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.1940865391087603, 2.2925170586050205, 2.3926306208798276]}}