{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:13:02.311605", "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": "2018-Jun-06_to_2018-Jun-09_353.0_8.0"}, "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": 2018060001823}, "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": "June 06 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 09 2018"}, "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": 79560.47685535904}, "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", "Guinea", "Liberia"]}, "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": 8.0}, "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": 353.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "353.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 350.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 355.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 6.25}, "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": {"2018-06-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.5, 8.75], [-8.25, 8.65], [-8.0, 8.75], [-7.75, 8.65], [-7.5, 8.75], [-7.25, 8.65], [-7.18, 8.68], [-7.03, 9.03], [-6.68, 9.18], [-6.65, 9.25], [-6.75, 9.5], [-6.53, 10.03], [-6.0, 10.25], [-5.47, 10.03], [-5.25, 9.5], [-5.35, 9.25], [-5.25, 9.0], [-5.47, 8.47], [-5.82, 8.32], [-5.97, 7.97], [-6.32, 7.82], [-6.47, 7.47], [-6.82, 7.32], [-6.97, 6.97], [-7.5, 6.75], [-8.0, 6.96], [-8.5, 6.75], [-8.75, 6.85], [-9.0, 6.75], [-9.53, 6.97], [-9.75, 7.5], [-9.53, 8.03], [-9.18, 8.18], [-9.03, 8.53], [-8.5, 8.75]]]]}, "2018-06-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.5, 8.75], [-8.25, 8.65], [-8.0, 8.75], [-7.75, 8.65], [-7.5, 8.75], [-7.25, 8.65], [-7.18, 8.68], [-7.03, 9.03], [-6.68, 9.18], [-6.65, 9.25], [-6.75, 9.5], [-6.53, 10.03], [-6.0, 10.25], [-5.75, 10.15], [-5.5, 10.25], [-4.97, 10.03], [-4.82, 9.68], [-4.47, 9.53], [-4.32, 9.18], [-3.97, 9.03], [-3.75, 8.5], [-3.97, 7.97], [-4.32, 7.82], [-4.47, 7.47], [-4.82, 7.32], [-4.97, 6.97], [-5.32, 6.82], [-5.47, 6.47], [-5.82, 6.32], [-5.97, 5.97], [-6.5, 5.75], [-7.03, 5.97], [-7.25, 6.5], [-7.15, 6.75], [-7.18, 6.82], [-7.25, 6.85], [-7.5, 6.75], [-8.0, 6.96], [-8.5, 6.75], [-8.75, 6.85], [-9.0, 6.75], [-9.53, 6.97], [-9.75, 7.5], [-9.53, 8.03], [-9.18, 8.18], [-9.03, 8.53], [-8.5, 8.75]]]]}, "2018-06-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.5, 8.75], [-8.25, 8.65], [-8.0, 8.75], [-7.75, 8.65], [-7.5, 8.75], [-7.25, 8.65], [-7.18, 8.68], [-7.03, 9.03], [-6.68, 9.18], [-6.65, 9.25], [-6.75, 9.5], [-6.53, 10.03], [-6.0, 10.25], [-5.75, 10.15], [-5.5, 10.25], [-4.97, 10.03], [-4.82, 9.68], [-4.47, 9.53], [-4.32, 9.18], [-3.97, 9.03], [-3.75, 8.5], [-3.97, 7.97], [-4.32, 7.82], [-4.47, 7.47], [-4.82, 7.32], [-4.97, 6.97], [-5.32, 6.82], [-5.47, 6.47], [-5.82, 6.32], [-5.97, 5.97], [-6.5, 5.75], [-7.03, 5.97], [-7.25, 6.5], [-7.15, 6.75], [-7.18, 6.82], [-7.25, 6.85], [-7.5, 6.75], [-8.0, 6.96], [-8.5, 6.75], [-8.75, 6.85], [-9.0, 6.75], [-9.53, 6.97], [-9.75, 7.5], [-9.53, 8.03], [-9.18, 8.18], [-9.03, 8.53], [-8.5, 8.75]]]]}, "2018-06-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-7.53, 8.53], [-7.18, 8.68], [-7.03, 9.03], [-6.68, 9.18], [-6.65, 9.25], [-6.75, 9.5], [-6.53, 10.03], [-6.0, 10.25], [-5.75, 10.15], [-5.5, 10.25], [-4.97, 10.03], [-4.82, 9.68], [-4.47, 9.53], [-4.32, 9.18], [-3.97, 9.03], [-3.75, 8.5], [-3.97, 7.97], [-4.32, 7.82], [-4.47, 7.47], [-4.82, 7.32], [-4.97, 6.97], [-5.32, 6.82], [-5.47, 6.47], [-5.82, 6.32], [-5.97, 5.97], [-6.5, 5.75], [-7.03, 5.97], [-7.25, 6.5], [-7.15, 6.75], [-7.18, 6.82], [-7.53, 6.97], [-7.75, 7.5], [-7.65, 7.75], [-7.75, 8.0], [-7.53, 8.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.3926127218204556}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.6183671863166937}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.848050132384856, 27.56809064604846, 27.974329328173837, 27.97769302711282]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.296088780784373, 28.804320115301664, 29.369520152143252, 29.22225084852613]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4146712934387096, 1.4967594910693178, 1.90870739492977, 1.500862865380276]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.6037690659749728, 2.0355350320758134, 2.3926127218204556, 2.1292782024493704]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.543661944872751, 1.5684575484942909, 1.9762692980237828, 1.5166298034635506]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0085134024249918, 2.0165140004717546, 2.394513522010684, 1.8257919219518182]}}