{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:37:19.045453", "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": "2023-Dec-08_to_2023-Dec-12_28.0_-3.5"}, "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": 2023120001145}, "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": "December 08 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 12 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 166724.65940579044}, "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": ["Burundi", "Congo DRC", "Rwanda", "Tanzania"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa", "S.Eastern-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": -3.5}, "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": 28.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "28.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 25.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 31.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -5.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 0.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-12-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.35, -1.75], [29.25, -1.5], [29.47, -0.97], [30.0, -0.75], [30.53, -0.97], [30.75, -1.5], [30.65, -1.75], [30.75, -2.0], [30.65, -2.25], [30.75, -2.5], [30.53, -3.03], [30.0, -3.25], [29.47, -3.03], [29.25, -2.5], [29.35, -2.25], [29.25, -2.0], [29.35, -1.75]]]]}, "2023-12-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.25, -2.0], [25.47, -1.47], [26.0, -1.25], [26.25, -1.35], [26.32, -1.32], [26.47, -0.97], [27.0, -0.75], [27.3, -0.87], [27.35, -0.75], [27.25, -0.5], [27.47, 0.03], [27.82, 0.18], [27.85, 0.25], [27.75, 0.5], [27.97, 1.03], [28.5, 1.25], [29.03, 1.03], [29.18, 0.68], [29.53, 0.53], [29.75, 0.0], [29.65, -0.25], [29.75, -0.5], [29.65, -0.75], [29.68, -0.82], [29.75, -0.85], [30.0, -0.75], [30.5, -0.96], [31.0, -0.75], [31.25, -0.85], [31.5, -0.75], [32.03, -0.97], [32.25, -1.5], [32.15, -1.75], [32.25, -2.0], [32.03, -2.53], [31.68, -2.68], [31.53, -3.03], [31.18, -3.18], [31.03, -3.53], [30.5, -3.75], [29.97, -3.53], [29.82, -3.18], [29.75, -3.15], [29.5, -3.25], [29.2, -3.12], [29.15, -3.25], [29.25, -3.5], [29.04, -4.0], [29.25, -4.5], [29.04, -5.0], [29.25, -5.5], [29.03, -6.03], [28.5, -6.25], [27.97, -6.03], [27.75, -5.5], [27.96, -5.0], [27.82, -4.68], [27.75, -4.65], [27.5, -4.75], [26.97, -4.53], [26.75, -4.0], [26.85, -3.75], [26.82, -3.68], [26.75, -3.65], [26.5, -3.75], [25.97, -3.53], [25.75, -3.0], [25.88, -2.7], [25.47, -2.53], [25.25, -2.0]]]]}, "2023-12-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.82, -3.32], [25.85, -3.25], [25.82, -3.18], [25.47, -3.03], [25.25, -2.5], [25.35, -2.25], [25.25, -2.0], [25.47, -1.47], [26.0, -1.25], [26.25, -1.35], [26.32, -1.32], [26.47, -0.97], [27.0, -0.75], [27.3, -0.87], [27.35, -0.75], [27.25, -0.5], [27.47, 0.03], [27.82, 0.18], [27.85, 0.25], [27.75, 0.5], [27.97, 1.03], [28.5, 1.25], [29.03, 1.03], [29.18, 0.68], [29.53, 0.53], [29.75, 0.0], [29.65, -0.25], [29.75, -0.5], [29.65, -0.75], [29.68, -0.82], [29.75, -0.85], [30.0, -0.75], [30.5, -0.96], [31.0, -0.75], [31.25, -0.85], [31.5, -0.75], [32.03, -0.97], [32.25, -1.5], [32.15, -1.75], [32.25, -2.0], [32.03, -2.53], [31.68, -2.68], [31.53, -3.03], [31.18, -3.18], [31.03, -3.53], [30.5, -3.75], [29.97, -3.53], [29.82, -3.18], [29.75, -3.15], [29.5, -3.25], [29.2, -3.12], [29.15, -3.25], [29.25, -3.5], [29.04, -4.0], [29.25, -4.5], [29.15, -4.75], [29.25, -5.0], [29.15, -5.25], [29.25, -5.5], [29.03, -6.03], [28.5, -6.25], [27.97, -6.03], [27.75, -5.5], [27.85, -5.25], [27.75, -5.0], [27.85, -4.75], [27.82, -4.68], [27.75, -4.65], [27.5, -4.75], [27.2, -4.62], [27.03, -5.03], [26.5, -5.25], [26.25, -5.15], [26.0, -5.25], [25.75, -5.15], [25.5, -5.25], [24.97, -5.03], [24.75, -4.5], [24.97, -3.97], [25.32, -3.82], [25.47, -3.47], [25.82, -3.32]]]]}, "2023-12-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.82, -3.32], [25.85, -3.25], [25.82, -3.18], [25.47, -3.03], [25.25, -2.5], [25.35, -2.25], [25.25, -2.0], [25.47, -1.47], [26.0, -1.25], [26.25, -1.35], [26.32, -1.32], [26.47, -0.97], [27.0, -0.75], [27.3, -0.87], [27.35, -0.75], [27.25, -0.5], [27.47, 0.03], [27.82, 0.18], [27.85, 0.25], [27.75, 0.5], [27.97, 1.03], [28.5, 1.25], [29.03, 1.03], [29.18, 0.68], [29.53, 0.53], [29.75, 0.0], [29.65, -0.25], [29.75, -0.5], [29.65, -0.75], [29.68, -0.82], [29.75, -0.85], [30.0, -0.75], [30.5, -0.96], [31.0, -0.75], [31.25, -0.85], [31.5, -0.75], [32.03, -0.97], [32.25, -1.5], [32.15, -1.75], [32.25, -2.0], [32.03, -2.53], [31.68, -2.68], [31.53, -3.03], [31.18, -3.18], [31.03, -3.53], [30.5, -3.75], [29.97, -3.53], [29.82, -3.18], [29.75, -3.15], [29.5, -3.25], [29.2, -3.12], [29.15, -3.25], [29.25, -3.5], [29.04, -4.0], [29.25, -4.5], [29.15, -4.75], [29.25, -5.0], [29.15, -5.25], [29.25, -5.5], [29.03, -6.03], [28.5, -6.25], [27.97, -6.03], [27.75, -5.5], [27.85, -5.25], [27.75, -5.0], [27.85, -4.75], [27.82, -4.68], [27.75, -4.65], [27.5, -4.75], [27.2, -4.62], [27.03, -5.03], [26.5, -5.25], [26.25, -5.15], [26.0, -5.25], [25.75, -5.15], [25.5, -5.25], [24.97, -5.03], [24.75, -4.5], [24.97, -3.97], [25.32, -3.82], [25.47, -3.47], [25.82, -3.32]]]]}, "2023-12-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.82, -3.32], [25.85, -3.25], [25.82, -3.18], [25.47, -3.03], [25.25, -2.5], [25.47, -1.97], [26.0, -1.75], [26.53, -1.97], [26.68, -2.32], [26.75, -2.35], [27.0, -2.25], [27.25, -2.35], [27.5, -2.25], [27.75, -2.35], [27.82, -2.32], [27.85, -2.25], [27.75, -2.0], [27.85, -1.75], [27.75, -1.5], [27.97, -0.97], [28.38, -0.8], [28.25, -0.5], [28.35, -0.25], [28.25, 0.0], [28.47, 0.53], [29.0, 0.75], [29.53, 0.53], [29.75, 0.0], [29.65, -0.25], [29.75, -0.5], [29.63, -0.8], [30.03, -0.97], [30.18, -1.32], [30.25, -1.35], [30.5, -1.25], [30.75, -1.35], [30.82, -1.32], [30.97, -0.97], [31.5, -0.75], [32.03, -0.97], [32.25, -1.5], [32.15, -1.75], [32.25, -2.0], [32.03, -2.53], [31.68, -2.68], [31.53, -3.03], [31.18, -3.18], [31.03, -3.53], [30.5, -3.75], [29.97, -3.53], [29.82, -3.18], [29.75, -3.15], [29.5, -3.25], [29.2, -3.12], [29.15, -3.25], [29.25, -3.5], [29.04, -4.0], [29.25, -4.5], [29.15, -4.75], [29.25, -5.0], [29.15, -5.25], [29.25, -5.5], [29.03, -6.03], [28.5, -6.25], [27.97, -6.03], [27.75, -5.5], [27.85, -5.25], [27.75, -5.0], [27.85, -4.75], [27.82, -4.68], [27.75, -4.65], [27.5, -4.75], [27.2, -4.62], [27.03, -5.03], [26.5, -5.25], [26.25, -5.15], [26.0, -5.25], [25.75, -5.15], [25.5, -5.25], [24.97, -5.03], [24.75, -4.5], [24.97, -3.97], [25.32, -3.82], [25.47, -3.47], [25.82, -3.32]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.5937988668064236}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.5718466726789264}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.317885737930567, 22.21263652273342, 22.71757607743433, 22.643910116914356, 22.371895254053584]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.42575489954578, 25.61036232774495, 25.72650465705152, 25.65216520571971, 25.95642048591253]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.3508985384005239, 1.5655479485377395, 1.636086457203844, 1.5466898464997187, 1.5405522392373443]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.5171344563364642, 2.25587412603835, 2.5937988668064236, 2.321748983936743, 2.0755008671637825]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5909320208973652, 1.9194764849817598, 1.9717597150384065, 1.8428829948142122, 1.8208213167533367]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.712321854854327, 2.853450472310239, 3.298670620100625, 2.6333262778969324, 2.4668740971544603]}}