{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:26:47.660186", "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-Jul-25_to_2021-Jul-29_345.5_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": 2021070002784}, "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": "July 25 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 29 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 113482.21840463123}, "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", "Mali", "Mauritania", "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": []}, "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": 345.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "345.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 343.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 349.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 13.25}, "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": {"2021-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.5, 16.25], [-14.2, 16.12], [-14.03, 16.53], [-13.5, 16.75], [-12.97, 16.53], [-12.75, 16.0], [-12.97, 15.47], [-13.5, 15.25], [-13.8, 15.38], [-13.85, 15.25], [-13.75, 15.0], [-13.97, 14.47], [-14.5, 14.25], [-14.75, 14.35], [-15.0, 14.25], [-15.53, 14.47], [-15.75, 15.0], [-15.53, 15.53], [-15.18, 15.68], [-15.03, 16.03], [-14.5, 16.25]]]]}, "2021-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.75, 14.5], [-16.53, 15.03], [-16.18, 15.18], [-16.03, 15.53], [-15.5, 15.75], [-15.25, 15.65], [-15.18, 15.68], [-15.03, 16.03], [-14.5, 16.25], [-14.25, 16.15], [-14.18, 16.18], [-14.03, 16.53], [-13.5, 16.75], [-13.25, 16.65], [-13.0, 16.75], [-12.75, 16.65], [-12.5, 16.75], [-12.25, 16.65], [-12.0, 16.75], [-11.75, 16.65], [-11.5, 16.75], [-11.25, 16.65], [-11.0, 16.75], [-10.75, 16.65], [-10.5, 16.75], [-9.97, 16.53], [-9.75, 16.0], [-9.85, 15.75], [-9.75, 15.5], [-9.97, 14.97], [-10.5, 14.75], [-10.75, 14.85], [-11.0, 14.75], [-11.25, 14.85], [-11.5, 14.75], [-11.75, 14.85], [-11.82, 14.82], [-11.97, 14.47], [-12.5, 14.25], [-12.75, 14.35], [-12.82, 14.32], [-12.97, 13.97], [-13.5, 13.75], [-13.75, 13.85], [-13.82, 13.82], [-13.97, 13.47], [-14.32, 13.32], [-14.47, 12.97], [-15.0, 12.75], [-15.25, 12.85], [-15.5, 12.75], [-15.75, 12.85], [-16.0, 12.75], [-16.25, 12.85], [-16.5, 12.75], [-17.03, 12.97], [-17.25, 13.5], [-17.03, 14.03], [-16.68, 14.18], [-16.65, 14.25], [-16.75, 14.5]]]]}, "2021-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.03, 14.53], [-16.68, 14.68], [-16.53, 15.03], [-16.18, 15.18], [-16.03, 15.53], [-15.5, 15.75], [-15.25, 15.65], [-15.18, 15.68], [-15.03, 16.03], [-14.5, 16.25], [-14.25, 16.15], [-14.18, 16.18], [-14.03, 16.53], [-13.5, 16.75], [-13.25, 16.65], [-13.0, 16.75], [-12.75, 16.65], [-12.5, 16.75], [-12.25, 16.65], [-12.0, 16.75], [-11.75, 16.65], [-11.5, 16.75], [-11.25, 16.65], [-11.0, 16.75], [-10.75, 16.65], [-10.5, 16.75], [-9.97, 16.53], [-9.75, 16.0], [-9.85, 15.75], [-9.75, 15.5], [-9.97, 14.97], [-10.5, 14.75], [-10.75, 14.85], [-11.0, 14.75], [-11.25, 14.85], [-11.5, 14.75], [-11.75, 14.85], [-11.82, 14.82], [-11.97, 14.47], [-12.5, 14.25], [-12.75, 14.35], [-12.82, 14.32], [-12.97, 13.97], [-13.5, 13.75], [-13.75, 13.85], [-13.82, 13.82], [-13.97, 13.47], [-14.32, 13.32], [-14.47, 12.97], [-15.0, 12.75], [-15.25, 12.85], [-15.5, 12.75], [-15.75, 12.85], [-16.0, 12.75], [-16.25, 12.85], [-16.5, 12.75], [-17.03, 12.97], [-17.25, 13.5], [-17.15, 13.75], [-17.25, 14.0], [-17.03, 14.53]]]]}, "2021-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.03, 14.53], [-16.68, 14.68], [-16.53, 15.03], [-16.18, 15.18], [-16.03, 15.53], [-15.5, 15.75], [-15.25, 15.65], [-15.18, 15.68], [-15.03, 16.03], [-14.5, 16.25], [-14.25, 16.15], [-14.0, 16.25], [-13.75, 16.15], [-13.68, 16.18], [-13.53, 16.53], [-13.0, 16.75], [-12.75, 16.65], [-12.5, 16.75], [-12.25, 16.65], [-12.0, 16.75], [-11.75, 16.65], [-11.5, 16.75], [-11.25, 16.65], [-11.0, 16.75], [-10.75, 16.65], [-10.5, 16.75], [-9.97, 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4.544532136391865}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.7248725837966634}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.135710836638225, 32.27967059600314, 32.73373448723464, 32.005678160497496, 28.72774831244965]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.85644519323881, 34.8075912387456, 34.94769697283783, 34.840914998416736, 29.17230834718788]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.9270709022570145, 2.6171676833581876, 3.176669680830665, 2.544229793459124, 1.0707633825862217]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.1968449105107197, 3.3463307184641167, 4.544532136391865, 3.633312659233809, 1.171470913056396]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.312494527383714, 1.6768525441154005, 2.076361629636037, 1.686611493437639, 1.3320388940615384]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3852076961070732, 2.1173996802563977, 2.958922051740228, 2.199895214059827, 1.3599352398939655]}}