{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:21:13.411034", "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": "2020-Aug-15_to_2020-Aug-20_343.0_15.0"}, "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": 2020080002153}, "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": "August 15 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 20 2020"}, "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": 89634.63002352108}, "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": ["Gambia", "Senegal"]}, "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": ["North Atlantic Ocean"]}, "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": 15.0}, "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": 343.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "343.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 340.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 345.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.75}, "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": {"2020-08-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-19.0, 15.75], [-18.7, 15.62], [-18.53, 16.03], [-18.0, 16.25], [-17.75, 16.15], [-17.5, 16.25], [-17.25, 16.15], [-17.0, 16.25], [-16.47, 16.03], [-16.25, 15.5], [-16.47, 14.97], [-16.82, 14.82], [-16.85, 14.75], [-16.82, 14.68], [-16.47, 14.53], [-16.25, 14.0], [-16.47, 13.47], [-17.0, 13.25], [-17.53, 13.47], [-17.68, 13.82], [-17.75, 13.85], [-18.0, 13.75], [-18.5, 13.96], [-19.0, 13.75], [-19.25, 13.85], [-19.5, 13.75], [-20.03, 13.97], [-20.25, 14.5], [-20.03, 15.03], [-19.68, 15.18], [-19.53, 15.53], [-19.0, 15.75]]]]}, "2020-08-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-19.18, 15.68], [-19.03, 16.03], [-18.68, 16.18], [-18.53, 16.53], [-18.0, 16.75], [-17.75, 16.65], [-17.5, 16.75], [-16.97, 16.53], [-16.82, 16.18], [-16.47, 16.03], [-16.3, 15.62], [-16.0, 15.75], [-15.47, 15.53], [-15.25, 15.0], [-15.47, 14.47], [-16.0, 14.25], [-16.3, 14.38], [-16.35, 14.25], [-16.25, 14.0], [-16.47, 13.47], [-17.0, 13.25], [-17.53, 13.47], [-17.68, 13.82], [-17.75, 13.85], [-18.0, 13.75], [-18.5, 13.96], [-19.0, 13.75], [-19.25, 13.85], [-19.5, 13.75], [-20.03, 13.97], [-20.25, 14.5], [-20.03, 15.03], [-19.68, 15.18], [-19.53, 15.53], [-19.18, 15.68]]]]}, "2020-08-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-19.18, 15.68], [-19.03, 16.03], [-18.68, 16.18], [-18.53, 16.53], [-18.0, 16.75], [-17.75, 16.65], [-17.5, 16.75], [-16.97, 16.53], [-16.82, 16.18], [-16.75, 16.15], [-16.5, 16.25], [-16.25, 16.15], [-16.0, 16.25], [-15.75, 16.15], [-15.5, 16.25], [-14.97, 16.03], [-14.82, 15.68], [-14.47, 15.53], [-14.25, 15.0], [-14.47, 14.47], [-14.82, 14.32], [-14.97, 13.97], [-15.5, 13.75], [-15.75, 13.85], [-15.87, 13.8], [-15.82, 13.68], [-15.47, 13.53], [-15.25, 13.0], [-15.47, 12.47], [-16.0, 12.25], [-16.25, 12.35], [-16.5, 12.25], [-17.03, 12.47], [-17.25, 13.0], [-17.15, 13.25], [-17.18, 13.32], [-17.53, 13.47], [-17.68, 13.82], [-17.75, 13.85], [-18.0, 13.75], [-18.5, 13.96], [-19.0, 13.75], [-19.25, 13.85], [-19.5, 13.75], [-20.03, 13.97], [-20.25, 14.5], [-20.03, 15.03], [-19.68, 15.18], [-19.53, 15.53], [-19.18, 15.68]]]]}, "2020-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-19.18, 15.68], [-19.03, 16.03], [-18.68, 16.18], [-18.53, 16.53], [-18.0, 16.75], [-17.75, 16.65], [-17.5, 16.75], [-16.97, 16.53], [-16.82, 16.18], [-16.75, 16.15], [-16.5, 16.25], [-16.25, 16.15], [-16.0, 16.25], [-15.75, 16.15], [-15.5, 16.25], [-14.97, 16.03], [-14.82, 15.68], [-14.47, 15.53], [-14.25, 15.0], [-14.47, 14.47], [-14.82, 14.32], [-14.97, 13.97], [-15.5, 13.75], [-15.75, 13.85], [-15.87, 13.8], [-15.82, 13.68], [-15.47, 13.53], [-15.25, 13.0], [-15.47, 12.47], [-16.0, 12.25], [-16.25, 12.35], [-16.5, 12.25], [-17.03, 12.47], [-17.25, 13.0], [-17.15, 13.25], [-17.25, 13.5], [-17.12, 13.8], [-17.25, 13.85], [-17.5, 13.75], [-17.75, 13.85], [-18.0, 13.75], [-18.5, 13.96], [-19.0, 13.75], [-19.25, 13.85], [-19.5, 13.75], [-20.03, 13.97], [-20.25, 14.5], [-20.03, 15.03], [-19.68, 15.18], [-19.53, 15.53], [-19.18, 15.68]]]]}, "2020-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.53, 15.53], [-17.18, 15.68], [-17.03, 16.03], [-16.5, 16.25], [-16.25, 16.15], [-16.0, 16.25], [-15.75, 16.15], [-15.5, 16.25], [-14.97, 16.03], [-14.82, 15.68], [-14.47, 15.53], [-14.25, 15.0], [-14.47, 14.47], [-14.82, 14.32], [-14.97, 13.97], [-15.5, 13.75], [-15.75, 13.85], [-15.87, 13.8], [-15.82, 13.68], [-15.47, 13.53], [-15.25, 13.0], [-15.47, 12.47], [-16.0, 12.25], [-16.25, 12.35], [-16.5, 12.25], [-17.03, 12.47], [-17.25, 13.0], [-17.15, 13.25], [-17.25, 13.5], [-17.12, 13.8], [-17.53, 13.97], [-17.75, 14.5], [-17.65, 14.75], [-17.75, 15.0], [-17.53, 15.53]]]]}, "2020-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.5, 16.25], [-16.25, 16.15], [-16.0, 16.25], [-15.75, 16.15], [-15.5, 16.25], [-14.97, 16.03], [-14.82, 15.68], [-14.47, 15.53], [-14.25, 15.0], [-14.47, 14.47], [-14.82, 14.32], [-14.97, 13.97], [-15.5, 13.75], [-16.03, 13.97], [-16.18, 14.32], [-16.25, 14.35], [-16.5, 14.25], [-16.75, 14.35], [-17.0, 14.25], [-17.53, 14.47], [-17.75, 15.0], [-17.53, 15.53], [-17.18, 15.68], [-17.03, 16.03], [-16.5, 16.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.6023155998622656}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.3156419256741185}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.772884606575644, 27.99869655477238, 28.72538587224068, 28.843412374302943, 29.102988914472803, 29.62276255855778]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.94317698178503, 29.369935672601287, 31.08751292733359, 31.035826574760733, 30.36986780122436, 30.70085925135504]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.8864537397903611, 0.9963400696030867, 1.377865045470611, 1.483408150397528, 1.3878009285729187, 1.6105535145234802]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.9648926916679557, 1.3860570019681404, 2.3528874037934315, 2.6023155998622656, 1.713891119671132, 2.368540842952882]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4909370605448122, 1.560330922998682, 1.7474849168378768, 1.8600646078805378, 1.5289528621618529, 1.6709060381924337]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.670587031586907, 2.0306534256414897, 2.6568224536810567, 2.2863319906527164, 1.856889279503854, 2.2522517343539725]}}