{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:03.545021", "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-Sep-04_to_2018-Sep-06_24.5_0.5"}, "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": 2018090001484}, "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 04 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 06 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 61797.78551407927}, "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": ["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": 0.5}, "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": 24.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "24.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 23.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 25.75}, "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": 2.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.25, 2.5], [23.47, 3.03], [24.0, 3.25], [24.25, 3.15], [24.5, 3.25], [24.75, 3.15], [25.0, 3.25], [25.25, 3.15], [25.5, 3.25], [26.03, 3.03], [26.25, 2.5], [26.15, 2.25], [26.25, 2.0], [26.03, 1.47], [25.68, 1.32], [25.65, 1.25], [25.75, 1.0], [25.65, 0.75], [25.68, 0.68], [26.03, 0.53], [26.25, 0.0], [26.15, -0.25], [26.25, -0.5], [26.15, -0.75], [26.25, -1.0], [26.03, -1.53], [25.5, -1.75], [24.97, -1.53], [24.75, -1.0], [24.85, -0.75], [24.82, -0.68], [24.75, -0.65], [24.5, -0.75], [24.25, -0.65], [24.0, -0.75], [23.47, -0.53], [23.25, 0.0], [23.47, 0.53], [23.82, 0.68], [23.93, 0.93], [23.5, 0.75], [22.97, 0.97], [22.75, 1.5], [22.97, 2.03], [23.32, 2.18], [23.35, 2.25], [23.25, 2.5]]]]}, "2018-09-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.25, 2.5], [23.47, 3.03], [24.0, 3.25], [24.25, 3.15], [24.5, 3.25], [24.75, 3.15], [25.0, 3.25], [25.25, 3.15], [25.5, 3.25], [26.03, 3.03], [26.25, 2.5], [26.15, 2.25], [26.25, 2.0], [26.03, 1.47], [25.68, 1.32], [25.65, 1.25], [25.75, 1.0], [25.65, 0.75], [25.68, 0.68], [26.03, 0.53], [26.25, 0.0], [26.15, -0.25], [26.25, -0.5], [26.15, -0.75], [26.25, -1.0], [26.03, -1.53], [25.5, -1.75], [24.97, -1.53], [24.75, -1.0], [24.85, -0.75], [24.82, -0.68], [24.75, -0.65], [24.5, -0.75], [24.25, -0.65], [24.0, -0.75], [23.47, -0.53], [23.25, 0.0], [23.47, 0.53], [23.82, 0.68], [23.93, 0.93], [23.5, 0.75], [22.97, 0.97], [22.75, 1.5], [22.97, 2.03], [23.32, 2.18], [23.35, 2.25], [23.25, 2.5]]]]}, "2018-09-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.25, 2.5], [23.47, 3.03], [24.0, 3.25], [24.25, 3.15], [24.5, 3.25], [24.75, 3.15], [25.0, 3.25], [25.25, 3.15], [25.5, 3.25], [26.03, 3.03], [26.25, 2.5], [26.15, 2.25], [26.25, 2.0], [26.03, 1.47], [25.68, 1.32], [25.65, 1.25], [25.75, 1.0], [25.65, 0.75], [25.68, 0.68], [26.03, 0.53], [26.25, 0.0], [26.15, -0.25], [26.25, -0.5], [26.15, -0.75], [26.25, -1.0], [26.03, -1.53], [25.5, -1.75], [24.97, -1.53], [24.75, -1.0], [24.85, -0.75], [24.82, -0.68], [24.75, -0.65], [24.5, -0.75], [24.25, -0.65], [24.0, -0.75], [23.47, -0.53], [23.25, 0.0], [23.47, 0.53], [23.82, 0.68], [23.93, 0.93], [23.5, 0.75], [22.97, 0.97], [22.75, 1.5], [22.97, 2.03], [23.32, 2.18], [23.35, 2.25], [23.25, 2.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.3010413278315696}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.5462132886742486}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.473777507425552, 25.646078886390114, 25.55931834865561]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.430594971958328, 26.69925237477929, 26.462525897059834]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.440365521977924, 1.6169412232231566, 1.5813331208216652]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.9185477383212515, 2.3010413278315696, 2.0603114014325]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6762272978572372, 1.8876631403033488, 1.8685326751321447]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.098633214803082, 2.751456525811162, 2.334616459801377]}}