{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:59:27.938545", "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": "2026-Apr-21_to_2026-Apr-24_352.5_19.5"}, "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": 2026040002196}, "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": "April 21 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 24 2026"}, "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": 52703.66331675745}, "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": 19.5}, "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": 351.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 353.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 20.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-04-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.03, 20.53], [-7.5, 20.75], [-6.97, 20.53], [-6.75, 20.0], [-6.85, 19.75], [-6.75, 19.5], [-6.97, 18.97], [-7.5, 18.75], [-8.03, 18.97], [-8.25, 19.5], [-8.15, 19.75], [-8.25, 20.0], [-8.03, 20.53]]]]}, "2026-04-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.15, 17.75], [-9.25, 18.0], [-9.15, 18.25], [-9.25, 18.5], [-9.03, 19.03], [-8.68, 19.18], [-8.53, 19.53], [-8.18, 19.68], [-8.15, 19.75], [-8.25, 20.0], [-8.03, 20.53], [-7.68, 20.68], [-7.53, 21.03], [-7.0, 21.25], [-6.47, 21.03], [-6.32, 20.68], [-5.97, 20.53], [-5.75, 20.0], [-5.97, 19.47], [-6.32, 19.32], [-6.47, 18.97], [-6.82, 18.82], [-6.85, 18.75], [-6.75, 18.5], [-6.85, 18.25], [-6.75, 18.0], [-6.97, 17.47], [-7.32, 17.32], [-7.35, 17.25], [-7.25, 17.0], [-7.47, 16.47], [-8.0, 16.25], [-8.25, 16.35], [-8.5, 16.25], [-9.03, 16.47], [-9.25, 17.0], [-9.15, 17.25], [-9.25, 17.5], [-9.15, 17.75]]]]}, "2026-04-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.15, 17.75], [-9.25, 18.0], [-9.15, 18.25], [-9.25, 18.5], [-9.03, 19.03], [-8.68, 19.18], [-8.53, 19.53], [-8.18, 19.68], [-8.15, 19.75], [-8.25, 20.0], [-8.03, 20.53], [-7.68, 20.68], [-7.53, 21.03], [-7.0, 21.25], [-6.47, 21.03], [-6.32, 20.68], [-5.97, 20.53], [-5.75, 20.0], [-5.97, 19.47], [-6.32, 19.32], [-6.47, 18.97], [-6.82, 18.82], [-6.85, 18.75], [-6.75, 18.5], [-6.85, 18.25], [-6.75, 18.0], [-6.97, 17.47], [-7.32, 17.32], [-7.35, 17.25], [-7.25, 17.0], [-7.47, 16.47], [-8.0, 16.25], [-8.25, 16.35], [-8.5, 16.25], [-9.03, 16.47], [-9.25, 17.0], [-9.15, 17.25], [-9.25, 17.5], [-9.15, 17.75]]]]}, "2026-04-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.15, 17.75], [-9.25, 18.0], [-9.15, 18.25], [-9.25, 18.5], [-9.03, 19.03], [-8.68, 19.18], [-8.53, 19.53], [-8.18, 19.68], [-8.15, 19.75], [-8.25, 20.0], [-8.03, 20.53], [-7.68, 20.68], [-7.53, 21.03], [-7.0, 21.25], [-6.47, 21.03], [-6.32, 20.68], [-5.97, 20.53], [-5.75, 20.0], [-5.97, 19.47], [-6.32, 19.32], [-6.47, 18.97], [-6.82, 18.82], [-6.85, 18.75], [-6.75, 18.5], [-6.85, 18.25], [-6.75, 18.0], [-6.97, 17.47], [-7.32, 17.32], [-7.35, 17.25], [-7.25, 17.0], [-7.47, 16.47], [-8.0, 16.25], [-8.25, 16.35], [-8.5, 16.25], [-9.03, 16.47], [-9.25, 17.0], [-9.15, 17.25], [-9.25, 17.5], [-9.15, 17.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.640362955753517}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.646972051506}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [31.641952768961573, 33.27059580485036, 34.01913336294672, 34.25432371916594]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [31.713811492919945, 35.8052637736003, 36.0743181864421, 36.66394195556643]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.2495600773863202, 3.2298938847121375, 3.8290154823143387, 3.92616367350482]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.275743306600475, 3.518154198548075, 4.404509951190164, 4.640362955753517]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2261692645075577, 1.299575559636656, 1.5478893633925241, 1.599485104254258]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2311426392061555, 1.376843640608864, 1.7674451483907814, 1.7665716694992866]}}