{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:32.849533", "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": "2019-Sep-03_to_2019-Sep-06_14.0_18.0"}, "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": 2019090001341}, "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": "September 03 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 06 2019"}, "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": 61468.360115535565}, "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": ["Chad", "Niger"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": 18.0}, "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": 14.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "14.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 12.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 16.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 17.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 20.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.47, 17.47], [13.25, 18.0], [13.47, 18.53], [14.0, 18.75], [14.53, 18.53], [14.75, 18.0], [14.53, 17.47], [14.0, 17.25], [13.47, 17.47]]], [[[15.97, 19.47], [15.75, 20.0], [15.97, 20.53], [16.5, 20.75], [17.03, 20.53], [17.25, 20.0], [17.03, 19.47], [16.5, 19.25], [15.97, 19.47]]]]}, "2019-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.47, 19.03], [12.82, 19.18], [12.97, 19.53], [13.5, 19.75], [13.75, 19.65], [14.0, 19.75], [14.25, 19.65], [14.32, 19.68], [14.47, 20.03], [15.0, 20.25], [15.25, 20.15], [15.5, 20.25], [15.75, 20.15], [15.82, 20.18], [15.97, 20.53], [16.5, 20.75], [17.03, 20.53], [17.25, 20.0], [17.15, 19.75], [17.25, 19.5], [17.03, 18.97], [16.5, 18.75], [16.25, 18.85], [16.18, 18.82], [16.15, 18.75], [16.25, 18.5], [16.15, 18.25], [16.25, 18.0], [16.03, 17.47], [15.5, 17.25], [14.97, 17.47], [14.82, 17.82], [14.75, 17.85], [14.68, 17.82], [14.53, 17.47], [14.18, 17.32], [14.03, 16.97], [13.5, 16.75], [12.97, 16.97], [12.82, 17.32], [12.47, 17.47], [12.25, 18.0], [12.35, 18.25], [12.25, 18.5], [12.47, 19.03]]]]}, "2019-09-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.47, 19.03], [12.82, 19.18], [12.97, 19.53], [13.5, 19.75], [13.75, 19.65], [14.0, 19.75], [14.25, 19.65], [14.32, 19.68], [14.47, 20.03], [15.0, 20.25], [15.25, 20.15], [15.5, 20.25], [15.75, 20.15], [15.82, 20.18], [15.97, 20.53], [16.5, 20.75], [17.03, 20.53], [17.25, 20.0], [17.15, 19.75], [17.25, 19.5], [17.03, 18.97], [16.5, 18.75], [16.25, 18.85], [16.18, 18.82], [16.15, 18.75], [16.25, 18.5], [16.15, 18.25], [16.25, 18.0], [16.03, 17.47], [15.5, 17.25], [14.97, 17.47], [14.82, 17.82], [14.75, 17.85], [14.68, 17.82], [14.53, 17.47], [14.18, 17.32], [14.03, 16.97], [13.5, 16.75], [12.97, 16.97], [12.82, 17.32], [12.47, 17.47], [12.25, 18.0], [12.35, 18.25], [12.25, 18.5], [12.47, 19.03]]]]}, "2019-09-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.47, 19.03], [12.82, 19.18], [12.97, 19.53], [13.5, 19.75], [13.75, 19.65], [14.0, 19.75], [14.25, 19.65], [14.32, 19.68], [14.47, 20.03], [15.0, 20.25], [15.25, 20.15], [15.5, 20.25], [15.75, 20.15], [15.82, 20.18], [15.97, 20.53], [16.5, 20.75], [17.03, 20.53], [17.25, 20.0], [17.15, 19.75], [17.25, 19.5], [17.03, 18.97], [16.5, 18.75], [16.25, 18.85], [16.18, 18.82], [16.15, 18.75], [16.25, 18.5], [16.15, 18.25], [16.25, 18.0], [16.03, 17.47], [15.5, 17.25], [14.97, 17.47], [14.82, 17.82], [14.75, 17.85], [14.68, 17.82], [14.53, 17.47], [14.18, 17.32], [14.03, 16.97], [13.5, 16.75], [12.97, 16.97], [12.82, 17.32], [12.47, 17.47], [12.25, 18.0], [12.35, 18.25], [12.25, 18.5], [12.47, 19.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.8703130670691053}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.19721692231367}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [33.36819077792717, 33.72883996743701, 33.85768564814907, 34.28317318570873]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.49823128260658, 34.45950163043176, 34.82895498757313, 35.8064703458777]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.767169052796504, 1.8646882818537274, 2.1039957344745055, 2.6639236905667922]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.8144334872305308, 2.7172406749388642, 2.856341191170202, 3.8703130670691053]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3971889073775412, 1.5066081752983773, 1.6697925521502568, 2.0682392096534934]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4466989330051454, 2.1309784473522932, 2.2282935601746994, 2.9691985349210595]}}