{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:17:55.036144", "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-Aug-23_to_2018-Aug-26_344.0_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": 2018080002807}, "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 23 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 26 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": 106321.6323735253}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Atlantic-Ocean", "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": 11.5}, "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": 344.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "344.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 338.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 346.75}, "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": {"2018-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-19.03, 10.47], [-19.25, 11.0], [-19.03, 11.53], [-18.5, 11.75], [-18.25, 11.65], [-18.0, 11.75], [-17.75, 11.65], [-17.68, 11.68], [-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], [-14.97, 10.97], [-15.32, 10.82], [-15.47, 10.47], [-16.0, 10.25], [-16.25, 10.35], [-16.5, 10.25], [-16.75, 10.35], [-17.0, 10.25], [-17.25, 10.35], [-17.5, 10.25], [-17.75, 10.35], [-18.0, 10.25], [-18.25, 10.35], [-18.5, 10.25], [-19.03, 10.47]]]]}, "2018-08-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-22.03, 11.03], [-21.5, 11.25], [-21.25, 11.15], [-21.0, 11.25], [-20.75, 11.15], [-20.5, 11.25], [-20.25, 11.15], [-20.0, 11.25], [-19.75, 11.15], [-19.68, 11.18], [-19.53, 11.53], [-19.0, 11.75], [-18.75, 11.65], [-18.68, 11.68], [-18.53, 12.03], [-18.0, 12.25], [-17.75, 12.15], [-17.5, 12.25], [-17.25, 12.15], [-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], [-14.82, 11.68], [-14.75, 11.65], [-14.5, 11.75], [-13.97, 11.53], [-13.75, 11.0], [-13.85, 10.75], [-13.82, 10.68], [-13.47, 10.53], [-13.32, 10.18], [-12.97, 10.03], [-12.75, 9.5], [-12.97, 8.97], [-13.5, 8.75], [-14.03, 8.97], [-14.18, 9.32], [-14.53, 9.47], [-14.68, 9.82], [-15.03, 9.97], [-15.18, 10.32], [-15.5, 10.46], [-16.0, 10.25], [-16.25, 10.35], [-16.5, 10.25], [-16.75, 10.35], [-16.82, 10.32], [-16.85, 10.25], [-16.75, 10.0], [-16.97, 9.47], [-17.5, 9.25], [-18.0, 9.46], [-18.5, 9.25], [-18.75, 9.35], [-19.0, 9.25], [-19.25, 9.35], [-19.5, 9.25], [-19.75, 9.35], [-20.0, 9.25], [-20.25, 9.35], [-20.5, 9.25], [-20.75, 9.35], [-21.0, 9.25], [-21.25, 9.35], [-21.5, 9.25], [-22.03, 9.47], [-22.25, 10.0], [-22.15, 10.25], [-22.25, 10.5], [-22.03, 11.03]]]]}, "2018-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-22.03, 11.03], [-21.5, 11.25], [-21.25, 11.15], [-21.0, 11.25], [-20.75, 11.15], [-20.5, 11.25], [-20.25, 11.15], [-20.0, 11.25], [-19.75, 11.15], [-19.68, 11.18], [-19.53, 11.53], [-19.0, 11.75], [-18.75, 11.65], [-18.68, 11.68], [-18.53, 12.03], [-18.0, 12.25], [-17.75, 12.15], [-17.5, 12.25], [-17.25, 12.15], [-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], [-14.82, 11.68], [-14.75, 11.65], [-14.5, 11.75], [-13.97, 11.53], [-13.75, 11.0], [-13.85, 10.75], [-13.82, 10.68], [-13.47, 10.53], [-13.32, 10.18], [-12.97, 10.03], [-12.75, 9.5], [-12.97, 8.97], [-13.5, 8.75], [-14.03, 8.97], [-14.18, 9.32], [-14.53, 9.47], [-14.68, 9.82], [-15.03, 9.97], [-15.18, 10.32], [-15.5, 10.46], [-16.0, 10.25], [-16.25, 10.35], [-16.5, 10.25], [-16.75, 10.35], [-16.82, 10.32], [-16.85, 10.25], [-16.75, 10.0], [-16.97, 9.47], [-17.5, 9.25], [-18.0, 9.46], [-18.5, 9.25], [-18.75, 9.35], [-19.0, 9.25], [-19.25, 9.35], [-19.5, 9.25], [-19.75, 9.35], [-20.0, 9.25], [-20.25, 9.35], [-20.5, 9.25], [-20.75, 9.35], [-21.0, 9.25], [-21.25, 9.35], [-21.5, 9.25], [-22.03, 9.47], [-22.25, 10.0], [-22.15, 10.25], [-22.25, 10.5], [-22.03, 11.03]]]]}, "2018-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-22.03, 11.03], [-21.5, 11.25], [-21.25, 11.15], [-21.0, 11.25], [-20.75, 11.15], [-20.5, 11.25], [-20.25, 11.15], [-20.0, 11.25], [-19.75, 11.15], [-19.68, 11.18], [-19.53, 11.53], [-19.0, 11.75], [-18.75, 11.65], [-18.68, 11.68], [-18.53, 12.03], [-18.0, 12.25], [-17.75, 12.15], [-17.5, 12.25], [-17.25, 12.15], [-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], [-14.82, 11.68], [-14.75, 11.65], [-14.5, 11.75], [-13.97, 11.53], [-13.75, 11.0], [-13.85, 10.75], [-13.82, 10.68], [-13.47, 10.53], [-13.32, 10.18], [-12.97, 10.03], [-12.75, 9.5], [-12.97, 8.97], [-13.5, 8.75], [-14.03, 8.97], [-14.18, 9.32], [-14.53, 9.47], [-14.68, 9.82], [-15.03, 9.97], [-15.18, 10.32], [-15.53, 10.47], [-15.68, 10.82], [-15.75, 10.85], [-15.82, 10.82], [-15.97, 10.47], [-16.5, 10.25], [-16.75, 10.35], [-16.82, 10.32], [-16.85, 10.25], [-16.75, 10.0], [-16.97, 9.47], [-17.5, 9.25], [-18.0, 9.46], [-18.5, 9.25], [-18.75, 9.35], [-19.0, 9.25], [-19.25, 9.35], [-19.5, 9.25], [-19.75, 9.35], [-20.0, 9.25], [-20.25, 9.35], [-20.5, 9.25], [-20.75, 9.35], [-21.0, 9.25], [-21.25, 9.35], [-21.5, 9.25], [-22.03, 9.47], [-22.25, 10.0], [-22.15, 10.25], [-22.25, 10.5], [-22.03, 11.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.1220307171906256}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.958641417394962}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.992119651996518, 26.879991627853542, 27.05389554728208, 26.925035308852443]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.19862419663457, 27.391106674370235, 27.7062511785806, 27.391520793298298]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.8402348642054506, 0.9031307464939882, 1.0795388071277932, 0.9261570165943771]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.00919145426235, 1.7799804746681502, 2.1220307171906256, 1.219191063959272]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6653071502823042, 1.8404021254501366, 2.115384929501926, 1.809920676094022]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8042275910132362, 2.516498077920116, 3.341823309588617, 2.6967750042231664]}}