{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:23:49.979329", "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": "2021-Mar-23_to_2021-Mar-28_349.0_9.5"}, "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": 2021030002343}, "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": "March 23 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 28 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 57884.76915746032}, "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", "Sierra Leone"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": []}, "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": 9.5}, "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": 349.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "349.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 347.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 350.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 8.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 11.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-03-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.53, 8.97], [-11.75, 9.5], [-11.53, 10.03], [-11.0, 10.25], [-10.47, 10.03], [-10.25, 9.5], [-10.47, 8.97], [-11.0, 8.75], [-11.53, 8.97]]], [[[-11.03, 10.47], [-11.25, 11.0], [-11.03, 11.53], [-10.5, 11.75], [-9.97, 11.53], [-9.75, 11.0], [-9.97, 10.47], [-10.5, 10.25], [-11.03, 10.47]]]]}, "2021-03-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.75, 9.5], [-12.53, 10.03], [-12.18, 10.18], [-12.15, 10.25], [-12.25, 10.5], [-12.03, 11.03], [-11.5, 11.25], [-11.25, 11.15], [-11.18, 11.18], [-11.03, 11.53], [-10.5, 11.75], [-9.97, 11.53], [-9.82, 11.18], [-9.47, 11.03], [-9.25, 10.5], [-9.35, 10.25], [-9.25, 10.0], [-9.47, 9.47], [-9.82, 9.32], [-9.85, 9.25], [-9.75, 9.0], [-9.85, 8.75], [-9.75, 8.5], [-9.97, 7.97], [-10.5, 7.75], [-10.75, 7.85], [-11.0, 7.75], [-11.53, 7.97], [-11.68, 8.32], [-12.03, 8.47], [-12.18, 8.82], [-12.53, 8.97], [-12.75, 9.5]]]]}, "2021-03-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.75, 9.5], [-12.53, 10.03], [-12.18, 10.18], [-12.15, 10.25], [-12.25, 10.5], [-12.03, 11.03], [-11.5, 11.25], [-11.25, 11.15], [-11.18, 11.18], [-11.03, 11.53], [-10.5, 11.75], [-9.97, 11.53], [-9.82, 11.18], [-9.47, 11.03], [-9.25, 10.5], [-9.35, 10.25], [-9.25, 10.0], [-9.35, 9.75], [-9.25, 9.5], [-9.47, 8.97], [-9.82, 8.82], [-9.85, 8.75], [-9.75, 8.5], [-9.97, 7.97], [-10.5, 7.75], [-10.75, 7.85], [-11.0, 7.75], [-11.53, 7.97], [-11.68, 8.32], [-12.03, 8.47], [-12.18, 8.82], [-12.53, 8.97], [-12.75, 9.5]]]]}, "2021-03-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.75, 9.5], [-12.53, 10.03], [-12.18, 10.18], [-12.15, 10.25], [-12.25, 10.5], [-12.03, 11.03], [-11.5, 11.25], [-11.25, 11.15], [-11.0, 11.25], [-10.75, 11.15], [-10.5, 11.25], [-10.25, 11.15], [-10.0, 11.25], [-9.47, 11.03], [-9.25, 10.5], [-9.35, 10.25], [-9.25, 10.0], [-9.35, 9.75], [-9.25, 9.5], [-9.47, 8.97], [-9.82, 8.82], [-9.85, 8.75], [-9.75, 8.5], [-9.97, 7.97], [-10.5, 7.75], [-10.75, 7.85], [-11.0, 7.75], [-11.53, 7.97], [-11.68, 8.32], [-12.03, 8.47], [-12.18, 8.82], [-12.53, 8.97], [-12.75, 9.5]]]]}, "2021-03-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.25, 9.0], [-12.03, 9.53], [-11.68, 9.68], [-11.54, 10.0], [-11.75, 10.5], [-11.53, 11.03], [-11.0, 11.25], [-10.47, 11.03], [-10.32, 10.68], [-9.97, 10.53], [-9.82, 10.18], [-9.47, 10.03], [-9.25, 9.5], [-9.47, 8.97], [-9.82, 8.82], [-9.85, 8.75], [-9.75, 8.5], [-9.97, 7.97], [-10.5, 7.75], [-10.75, 7.85], [-11.0, 7.75], [-11.53, 7.97], [-11.68, 8.32], [-12.03, 8.47], [-12.25, 9.0]]]]}, "2021-03-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.65, 9.25], [-11.75, 9.5], [-11.53, 10.03], [-11.0, 10.25], [-10.47, 10.03], [-10.25, 9.5], [-10.35, 9.25], [-10.25, 9.0], [-10.35, 8.75], [-10.25, 8.5], [-10.47, 7.97], [-11.0, 7.75], [-11.53, 7.97], [-11.75, 8.5], [-11.65, 8.75], [-11.75, 9.0], [-11.65, 9.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.6132070765620483}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.8931005192721606}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [31.091396361389002, 30.800604847220484, 30.73337572042044, 30.770190347635946, 29.826534253063073, 28.977362377350744]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.268201705530316, 33.03894847221238, 33.11947425380606, 32.70041151285949, 31.802695523558214, 29.699093450888824]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.5569616957201617, 1.897896623463478, 1.8756951711620038, 2.056315984551162, 1.8120094694538238, 1.4896610222436948]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.6155807595364422, 2.6132070765620483, 2.5126922281446014, 2.6131594242747838, 2.034034343195856, 1.6383899825604544]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.329901482134259, 1.7447603190832768, 1.6988233914829098, 1.862710508112749, 1.647980810216034, 1.386726568810257]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.335679754537905, 2.3447755251078477, 2.0874189543161656, 2.3437082881548297, 1.972779636648635, 1.5357740509083893]}}