{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:13.122875", "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-Aug-11_to_2011-Aug-13_343.5_11.0"}, "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": 2011080002397}, "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 11 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 13 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": 66879.55493085762}, "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-Bissau"]}, "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": ["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": 11.0}, "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": 343.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "343.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 342.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 345.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 9.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 11.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-08-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.65, 10.25], [-17.75, 10.5], [-17.65, 10.75], [-17.75, 11.0], [-17.65, 11.25], [-17.75, 11.5], [-17.53, 12.03], [-17.0, 12.25], [-16.75, 12.15], [-16.5, 12.25], [-16.25, 12.15], [-16.0, 12.25], [-15.75, 12.15], [-15.5, 12.25], [-14.97, 12.03], [-14.75, 11.5], [-14.85, 11.25], [-14.82, 11.18], [-14.47, 11.03], [-14.25, 10.5], [-14.35, 10.25], [-14.32, 10.18], [-13.97, 10.03], [-13.75, 9.5], [-13.97, 8.97], [-14.5, 8.75], [-15.0, 8.96], [-15.5, 8.75], [-15.75, 8.85], [-16.0, 8.75], [-16.25, 8.85], [-16.5, 8.75], [-16.75, 8.85], [-17.0, 8.75], [-17.53, 8.97], [-17.75, 9.5], [-17.65, 9.75], [-17.75, 10.0], [-17.65, 10.25]]]]}, "2011-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.65, 10.25], [-17.75, 10.5], [-17.65, 10.75], [-17.75, 11.0], [-17.65, 11.25], [-17.75, 11.5], [-17.53, 12.03], [-17.0, 12.25], [-16.75, 12.15], [-16.5, 12.25], [-16.25, 12.15], [-16.0, 12.25], [-15.75, 12.15], [-15.5, 12.25], [-14.97, 12.03], [-14.75, 11.5], [-14.85, 11.25], [-14.82, 11.18], [-14.47, 11.03], [-14.25, 10.5], [-14.35, 10.25], [-14.32, 10.18], [-13.97, 10.03], [-13.75, 9.5], [-13.97, 8.97], [-14.5, 8.75], [-15.0, 8.96], [-15.5, 8.75], [-15.75, 8.85], [-16.0, 8.75], [-16.25, 8.85], [-16.5, 8.75], [-16.75, 8.85], [-17.0, 8.75], [-17.53, 8.97], [-17.75, 9.5], [-17.65, 9.75], [-17.75, 10.0], [-17.65, 10.25]]]]}, "2011-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.65, 10.25], [-17.75, 10.5], [-17.65, 10.75], [-17.75, 11.0], [-17.65, 11.25], [-17.75, 11.5], [-17.53, 12.03], [-17.0, 12.25], [-16.75, 12.15], [-16.5, 12.25], [-16.25, 12.15], [-16.0, 12.25], [-15.75, 12.15], [-15.5, 12.25], [-14.97, 12.03], [-14.75, 11.5], [-14.85, 11.25], [-14.82, 11.18], [-14.47, 11.03], [-14.25, 10.5], [-14.35, 10.25], [-14.32, 10.18], [-13.97, 10.03], [-13.75, 9.5], [-13.97, 8.97], [-14.5, 8.75], [-15.0, 8.96], [-15.5, 8.75], [-15.75, 8.85], [-16.0, 8.75], [-16.25, 8.85], [-16.5, 8.75], [-16.75, 8.85], [-17.0, 8.75], [-17.53, 8.97], [-17.75, 9.5], [-17.65, 9.75], [-17.75, 10.0], [-17.65, 10.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.3877912776395078}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.9761052143179247}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.69916805227365, 26.873966705850023, 26.905599655336005]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.137896470418752, 27.51896945837592, 27.57312108863249]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.8537412131912354, 1.0256633140466584, 1.0489111157158804]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.007860278111707, 1.3398046246729223, 1.3877912776395078]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8944625108181172, 2.291633459331199, 2.3155019043996856]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.241621024541001, 2.8428797349124997, 3.0921875756968507]}}