{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:04.895529", "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-Jul-31_to_2011-Aug-03_356.0_7.5"}, "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": 2011070003408}, "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": "July 31 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 03 2011"}, "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": 55059.1279316869}, "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": ["C\u00f4te d'Ivoire", "Ghana"]}, "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": 7.5}, "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": 356.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "356.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 354.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 357.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 6.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 9.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-07-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-5.15, 8.75], [-5.25, 9.0], [-5.03, 9.53], [-4.68, 9.68], [-4.53, 10.03], [-4.0, 10.25], [-3.75, 10.15], [-3.5, 10.25], [-2.97, 10.03], [-2.75, 9.5], [-2.85, 9.25], [-2.75, 9.0], [-2.85, 8.75], [-2.75, 8.5], [-2.85, 8.25], [-2.82, 8.18], [-2.75, 8.15], [-2.5, 8.25], [-1.97, 8.03], [-1.75, 7.5], [-1.97, 6.97], [-2.5, 6.75], [-2.75, 6.85], [-3.0, 6.75], [-3.25, 6.85], [-3.5, 6.75], [-3.75, 6.85], [-4.0, 6.75], [-4.53, 6.97], [-4.68, 7.32], [-5.03, 7.47], [-5.25, 8.0], [-5.15, 8.25], [-5.25, 8.5], [-5.15, 8.75]]]]}, "2011-08-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-5.75, 8.5], [-5.53, 9.03], [-5.18, 9.18], [-5.03, 9.53], [-4.68, 9.68], [-4.53, 10.03], [-4.0, 10.25], [-3.75, 10.15], [-3.5, 10.25], [-2.97, 10.03], [-2.75, 9.5], [-2.85, 9.25], [-2.75, 9.0], [-2.85, 8.75], [-2.75, 8.5], [-2.85, 8.25], [-2.82, 8.18], [-2.75, 8.15], [-2.5, 8.25], [-1.97, 8.03], [-1.75, 7.5], [-1.97, 6.97], [-2.5, 6.75], [-2.75, 6.85], [-3.0, 6.75], [-3.25, 6.85], [-3.32, 6.82], [-3.47, 6.47], [-4.0, 6.25], [-4.53, 6.47], [-4.68, 6.82], [-5.03, 6.97], [-5.25, 7.5], [-5.15, 7.75], [-5.18, 7.82], [-5.53, 7.97], [-5.75, 8.5]]]]}, "2011-08-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-5.75, 8.5], [-5.53, 9.03], [-5.18, 9.18], [-5.03, 9.53], [-4.68, 9.68], [-4.53, 10.03], [-4.0, 10.25], [-3.75, 10.15], [-3.5, 10.25], [-2.97, 10.03], [-2.75, 9.5], [-2.85, 9.25], [-2.75, 9.0], [-2.85, 8.75], [-2.75, 8.5], [-2.85, 8.25], [-2.82, 8.18], [-2.75, 8.15], [-2.5, 8.25], [-1.97, 8.03], [-1.75, 7.5], [-1.97, 6.97], [-2.5, 6.75], [-2.75, 6.85], [-3.0, 6.75], [-3.25, 6.85], [-3.32, 6.82], [-3.47, 6.47], [-4.0, 6.25], [-4.53, 6.47], [-4.68, 6.82], [-5.03, 6.97], [-5.25, 7.5], [-5.15, 7.75], [-5.18, 7.82], [-5.53, 7.97], [-5.75, 8.5]]]]}, "2011-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-5.75, 8.5], [-5.53, 9.03], [-5.0, 9.25], [-4.47, 9.03], [-4.25, 8.5], [-4.37, 8.2], [-4.25, 8.15], [-4.0, 8.25], [-3.47, 8.03], [-3.25, 7.5], [-3.35, 7.25], [-3.25, 7.0], [-3.47, 6.47], [-4.0, 6.25], [-4.53, 6.47], [-4.68, 6.82], [-5.03, 6.97], [-5.25, 7.5], [-5.12, 7.8], [-5.53, 7.97], [-5.75, 8.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.085824103980542}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.38907267829494}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.289466324721673, 26.67985163819992, 26.287871437280444, 25.947284772192234]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.88614507240942, 27.36367577873972, 26.96747573805129, 26.17105250435202]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.2226176375743687, 1.6747447525252614, 1.3258847333535566, 1.0121004991968618]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.5027921809690383, 2.085824103980542, 1.7682967523940647, 1.0854732613889837]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5096361562349498, 2.153573249844144, 1.6574867684482073, 1.3595285032747668]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.791956400554991, 2.544058378830409, 2.3199580830287716, 1.5882282963960557]}}