{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:13:04.208164", "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-Jun-15_to_2018-Jun-18_352.5_13.5"}, "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": 2018060002339}, "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": "June 15 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 18 2018"}, "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": 92827.57195164438}, "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": ["Mali", "Mauritania"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "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": 13.5}, "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": 352.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "352.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 349.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 354.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 16.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.25, 13.5], [-8.03, 14.03], [-7.5, 14.25], [-7.25, 14.15], [-7.12, 14.2], [-7.25, 14.5], [-7.03, 15.03], [-6.5, 15.25], [-5.97, 15.03], [-5.75, 14.5], [-5.97, 13.97], [-6.37, 13.8], [-6.25, 13.5], [-6.47, 12.97], [-6.82, 12.82], [-6.85, 12.75], [-6.75, 12.5], [-6.97, 11.97], [-7.5, 11.75], [-7.75, 11.85], [-8.0, 11.75], [-8.53, 11.97], [-8.75, 12.5], [-8.53, 13.03], [-8.18, 13.18], [-8.15, 13.25], [-8.25, 13.5]]]]}, "2018-06-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.5, 15.25], [-9.25, 15.15], [-9.0, 15.25], [-8.75, 15.15], [-8.68, 15.18], [-8.65, 15.25], [-8.75, 15.5], [-8.53, 16.03], [-8.18, 16.18], [-8.03, 16.53], [-7.5, 16.75], [-6.97, 16.53], [-6.82, 16.18], [-6.75, 16.15], [-6.5, 16.25], [-5.97, 16.03], [-5.82, 15.68], [-5.47, 15.53], [-5.25, 15.0], [-5.35, 14.75], [-5.25, 14.5], [-5.47, 13.97], [-6.0, 13.75], [-6.25, 13.85], [-6.32, 13.82], [-6.35, 13.75], [-6.25, 13.5], [-6.47, 12.97], [-6.82, 12.82], [-6.85, 12.75], [-6.75, 12.5], [-6.97, 11.97], [-7.5, 11.75], [-7.75, 11.85], [-8.0, 11.75], [-8.53, 11.97], [-8.75, 12.5], [-8.65, 12.75], [-8.75, 13.0], [-8.65, 13.25], [-8.7, 13.38], [-9.0, 13.25], [-9.25, 13.35], [-9.5, 13.25], [-9.75, 13.35], [-10.0, 13.25], [-10.53, 13.47], [-10.75, 14.0], [-10.53, 14.53], [-10.18, 14.68], [-10.03, 15.03], [-9.5, 15.25]]]]}, "2018-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.5, 15.25], [-9.25, 15.15], [-9.0, 15.25], [-8.75, 15.15], [-8.68, 15.18], [-8.65, 15.25], [-8.75, 15.5], [-8.53, 16.03], [-8.18, 16.18], [-8.03, 16.53], [-7.5, 16.75], [-6.97, 16.53], [-6.82, 16.18], [-6.75, 16.15], [-6.5, 16.25], [-5.97, 16.03], [-5.82, 15.68], [-5.47, 15.53], [-5.25, 15.0], [-5.35, 14.75], [-5.25, 14.5], [-5.47, 13.97], [-6.0, 13.75], [-6.25, 13.85], [-6.32, 13.82], [-6.35, 13.75], [-6.25, 13.5], [-6.47, 12.97], [-6.82, 12.82], [-6.85, 12.75], [-6.75, 12.5], [-6.97, 11.97], [-7.5, 11.75], [-7.75, 11.85], [-8.0, 11.75], [-8.53, 11.97], [-8.75, 12.5], [-8.65, 12.75], [-8.75, 13.0], [-8.65, 13.25], [-8.7, 13.38], [-9.0, 13.25], [-9.25, 13.35], [-9.5, 13.25], [-9.75, 13.35], [-10.0, 13.25], [-10.53, 13.47], [-10.75, 14.0], [-10.53, 14.53], [-10.18, 14.68], [-10.03, 15.03], [-9.5, 15.25]]]]}, "2018-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.5, 15.25], [-9.25, 15.15], [-9.0, 15.25], [-8.75, 15.15], [-8.68, 15.18], [-8.65, 15.25], [-8.75, 15.5], [-8.53, 16.03], [-8.18, 16.18], [-8.03, 16.53], [-7.5, 16.75], [-6.97, 16.53], [-6.82, 16.18], [-6.75, 16.15], [-6.5, 16.25], [-5.97, 16.03], [-5.82, 15.68], [-5.47, 15.53], [-5.25, 15.0], [-5.35, 14.75], [-5.25, 14.5], [-5.47, 13.97], [-6.0, 13.75], [-6.25, 13.85], [-6.32, 13.82], [-6.47, 13.47], [-6.82, 13.32], [-6.97, 12.97], [-7.32, 12.82], [-7.47, 12.47], [-8.0, 12.25], [-8.53, 12.47], [-8.75, 13.0], [-8.65, 13.25], [-8.7, 13.38], [-9.0, 13.25], [-9.25, 13.35], [-9.5, 13.25], [-9.75, 13.35], [-10.0, 13.25], [-10.53, 13.47], [-10.75, 14.0], [-10.53, 14.53], [-10.18, 14.68], [-10.03, 15.03], [-9.5, 15.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.369191581852476}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.6292671012333853}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [33.04374772365094, 35.75087809208537, 35.70353728396549, 35.52712554359158]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [35.70097846107632, 37.2012344137018, 37.65033367745235, 37.32462653969213]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.090592571204828, 2.9244730466293274, 2.8354662453936705, 2.1732852273048047]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.295982084272282, 4.369191581852476, 3.7975460932598253, 2.4651543011046897]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.311968961380394, 1.7970540143532574, 1.8327568801544207, 1.3697436894020738]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4043618224633154, 2.5929082703383157, 2.4032613081197067, 1.5839344740578039]}}