{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:16.500181", "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": "2017-Oct-18_to_2017-Oct-21_18.5_2.5"}, "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": 2017100002207}, "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": "October 18 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 21 2017"}, "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": 55597.97802343006}, "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": ["Cameroon", "Congo", "Congo DRC"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-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": 2.5}, "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": 18.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "18.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 15.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 19.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 1.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 3.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-10-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.47, 1.47], [15.25, 2.0], [15.47, 2.53], [16.0, 2.75], [16.25, 2.65], [16.32, 2.68], [16.47, 3.03], [17.0, 3.25], [17.25, 3.15], [17.5, 3.25], [17.75, 3.15], [18.0, 3.25], [18.25, 3.15], [18.32, 3.18], [18.47, 3.53], [19.0, 3.75], [19.25, 3.65], [19.5, 3.75], [20.03, 3.53], [20.25, 3.0], [20.04, 2.5], [20.25, 2.0], [20.03, 1.47], [19.5, 1.25], [19.25, 1.35], [19.0, 1.25], [18.75, 1.35], [18.68, 1.32], [18.53, 0.97], [18.0, 0.75], [17.47, 0.97], [17.32, 1.32], [17.25, 1.35], [17.0, 1.25], [16.75, 1.35], [16.5, 1.25], [16.25, 1.35], [16.0, 1.25], [15.47, 1.47]]]]}, "2017-10-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.47, 2.53], [16.0, 2.75], [16.25, 2.65], [16.32, 2.68], [16.47, 3.03], [17.0, 3.25], [17.25, 3.15], [17.5, 3.25], [17.75, 3.15], [18.0, 3.25], [18.25, 3.15], [18.32, 3.18], [18.47, 3.53], [19.0, 3.75], [19.25, 3.65], [19.5, 3.75], [20.03, 3.53], [20.25, 3.0], [20.04, 2.5], [20.25, 2.0], [20.03, 1.47], [19.5, 1.25], [19.25, 1.35], [19.0, 1.25], [18.75, 1.35], [18.68, 1.32], [18.53, 0.97], [18.0, 0.75], [17.47, 0.97], [17.32, 1.32], [17.25, 1.35], [17.18, 1.32], [17.03, 0.97], [16.5, 0.75], [16.25, 0.85], [16.0, 0.75], [15.47, 0.97], [15.25, 1.5], [15.35, 1.75], [15.25, 2.0], [15.47, 2.53]]]]}, "2017-10-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.47, 2.53], [16.0, 2.75], [16.25, 2.65], [16.32, 2.68], [16.47, 3.03], [17.0, 3.25], [17.25, 3.15], [17.5, 3.25], [17.75, 3.15], [18.0, 3.25], [18.25, 3.15], [18.32, 3.18], [18.47, 3.53], [19.0, 3.75], [19.25, 3.65], [19.5, 3.75], [20.03, 3.53], [20.25, 3.0], [20.04, 2.5], [20.25, 2.0], [20.03, 1.47], [19.5, 1.25], [19.25, 1.35], [19.0, 1.25], [18.75, 1.35], [18.68, 1.32], [18.53, 0.97], [18.0, 0.75], [17.47, 0.97], [17.32, 1.32], [17.25, 1.35], [17.18, 1.32], [17.03, 0.97], [16.5, 0.75], [16.25, 0.85], [16.0, 0.75], [15.47, 0.97], [15.25, 1.5], [15.35, 1.75], [15.25, 2.0], [15.47, 2.53]]]]}, "2017-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.47, 2.53], [16.0, 2.75], [16.25, 2.65], [16.32, 2.68], [16.47, 3.03], [17.0, 3.25], [17.25, 3.15], [17.5, 3.25], [17.75, 3.15], [18.0, 3.25], [18.25, 3.15], [18.32, 3.18], [18.47, 3.53], [19.0, 3.75], [19.25, 3.65], [19.5, 3.75], [20.03, 3.53], [20.25, 3.0], [20.04, 2.5], [20.25, 2.0], [20.03, 1.47], [19.5, 1.25], [19.25, 1.35], [19.0, 1.25], [18.75, 1.35], [18.68, 1.32], [18.53, 0.97], [18.0, 0.75], [17.47, 0.97], [17.32, 1.32], [17.25, 1.35], [17.18, 1.32], [17.03, 0.97], [16.5, 0.75], [16.25, 0.85], [16.0, 0.75], [15.47, 0.97], [15.25, 1.5], [15.35, 1.75], [15.25, 2.0], [15.47, 2.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.444871124909014}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.6268219225228369}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.263326258509608, 25.9255283527433, 25.88360251522215, 26.58594273214544]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.66598653617683, 26.591509289973544, 26.556814481732772, 27.12592239532006]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.7104188283372928, 1.3995675308976212, 1.352069965398935, 2.0545199105479934]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.0813343744147232, 1.7240251795237782, 1.5772474849633795, 2.444871124909014]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8266248709670068, 1.5666557851545226, 1.5038543535455569, 2.2472427267154482]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.276540912601256, 1.9267436537853873, 1.7469463924533672, 2.7327485563935907]}}