{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:54:10.705714", "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": "2024-Dec-25_to_2024-Dec-28_349.5_20.5"}, "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": 2024120002081}, "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 25 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 28 2024"}, "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": 72057.91537259264}, "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": ["Mauritania"]}, "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": 20.5}, "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": 349.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "349.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 347.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 351.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 19.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 23.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-12-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.03, 21.53], [-10.68, 21.68], [-10.53, 22.03], [-10.18, 22.18], [-10.15, 22.25], [-10.25, 22.5], [-10.03, 23.03], [-9.68, 23.18], [-9.53, 23.53], [-9.0, 23.75], [-8.47, 23.53], [-8.32, 23.18], [-7.97, 23.03], [-7.75, 22.5], [-7.85, 22.25], [-7.75, 22.0], [-7.97, 21.47], [-8.32, 21.32], [-8.47, 20.97], [-8.82, 20.82], [-8.97, 20.47], [-9.32, 20.32], [-9.47, 19.97], [-10.0, 19.75], [-10.25, 19.85], [-10.5, 19.75], [-11.03, 19.97], [-11.25, 20.5], [-11.15, 20.75], [-11.25, 21.0], [-11.03, 21.53]]]]}, "2024-12-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.03, 19.97], [-13.25, 20.5], [-13.03, 21.03], [-12.5, 21.25], [-12.25, 21.15], [-12.18, 21.18], [-12.03, 21.53], [-11.5, 21.75], [-11.25, 21.65], [-11.0, 21.75], [-10.75, 21.65], [-10.68, 21.68], [-10.53, 22.03], [-10.18, 22.18], [-10.15, 22.25], [-10.25, 22.5], [-10.03, 23.03], [-9.68, 23.18], [-9.53, 23.53], [-9.0, 23.75], [-8.47, 23.53], [-8.32, 23.18], [-7.97, 23.03], [-7.75, 22.5], [-7.85, 22.25], [-7.75, 22.0], [-7.97, 21.47], [-8.32, 21.32], [-8.47, 20.97], [-8.82, 20.82], [-8.85, 20.75], [-8.75, 20.5], [-8.97, 19.97], [-9.32, 19.82], [-9.47, 19.47], [-10.0, 19.25], [-10.5, 19.46], [-10.82, 19.32], [-10.97, 18.97], [-11.5, 18.75], [-12.03, 18.97], [-12.25, 19.5], [-12.12, 19.8], [-12.25, 19.85], [-12.5, 19.75], [-13.03, 19.97]]]]}, "2024-12-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.03, 19.97], [-13.25, 20.5], [-13.03, 21.03], [-12.5, 21.25], [-12.25, 21.15], [-12.18, 21.18], [-12.03, 21.53], [-11.5, 21.75], [-11.25, 21.65], [-11.0, 21.75], [-10.75, 21.65], [-10.68, 21.68], [-10.53, 22.03], [-10.18, 22.18], [-10.15, 22.25], [-10.25, 22.5], [-10.03, 23.03], [-9.68, 23.18], [-9.53, 23.53], [-9.0, 23.75], [-8.47, 23.53], [-8.32, 23.18], [-7.97, 23.03], [-7.75, 22.5], [-7.85, 22.25], [-7.75, 22.0], [-7.97, 21.47], [-8.32, 21.32], [-8.47, 20.97], [-8.82, 20.82], [-8.85, 20.75], [-8.75, 20.5], [-8.97, 19.97], [-9.32, 19.82], [-9.47, 19.47], [-10.0, 19.25], [-10.5, 19.46], [-10.82, 19.32], [-10.97, 18.97], [-11.5, 18.75], [-12.03, 18.97], [-12.25, 19.5], [-12.12, 19.8], [-12.25, 19.85], [-12.5, 19.75], [-13.03, 19.97]]]]}, "2024-12-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.03, 19.97], [-13.25, 20.5], [-13.03, 21.03], [-12.5, 21.25], [-12.25, 21.15], [-12.18, 21.18], [-12.03, 21.53], [-11.5, 21.75], [-11.25, 21.65], [-11.0, 21.75], [-10.47, 21.53], [-10.32, 21.18], [-10.0, 21.04], [-9.5, 21.25], [-8.97, 21.03], [-8.75, 20.5], [-8.97, 19.97], [-9.32, 19.82], [-9.47, 19.47], [-10.0, 19.25], [-10.5, 19.46], [-10.82, 19.32], [-10.97, 18.97], [-11.5, 18.75], [-12.03, 18.97], [-12.25, 19.5], [-12.12, 19.8], [-12.25, 19.85], [-12.5, 19.75], [-13.03, 19.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.256430785320333}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.179838395925702}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.146723175048862, 21.679307098388733, 21.316999715169345, 21.348870849609398]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.605105336507165, 23.137578582763695, 23.277556355794275, 22.827956136067712]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.226541138214448, 4.416144041459886, 4.130909257737892, 3.6902971397447417]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.673432560656636, 5.256430785320333, 4.609505944582168, 4.254670125845109]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.581739487219912, 1.6812974051073695, 1.614292142521085, 1.486680426674341]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7363336548873163, 1.9697520506380586, 1.7780974011872634, 1.6673053514835703]}}