{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:21:34.277323", "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-Sep-21_to_2020-Sep-26_344.5_28.0"}, "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": 2020090002139}, "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": "September 21 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 26 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": 55390.24209789312}, "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": ["Canarias", "Morocco"]}, "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": ["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": 28.0}, "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": 344.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "344.5\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": 347.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 28.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-09-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.53, 27.47], [-16.75, 28.0], [-16.53, 28.53], [-16.0, 28.75], [-15.75, 28.65], [-15.5, 28.75], [-14.97, 28.53], [-14.75, 28.0], [-14.97, 27.47], [-15.5, 27.25], [-15.75, 27.35], [-16.0, 27.25], [-16.53, 27.47]]]]}, "2020-09-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.25, 28.5], [-17.03, 29.03], [-16.5, 29.25], [-15.97, 29.03], [-15.82, 28.68], [-15.75, 28.65], [-15.5, 28.75], [-14.97, 28.53], [-14.75, 28.0], [-14.97, 27.47], [-15.5, 27.25], [-15.75, 27.35], [-16.0, 27.25], [-16.53, 27.47], [-16.68, 27.82], [-17.03, 27.97], [-17.25, 28.5]]]]}, "2020-09-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.25, 28.5], [-17.03, 29.03], [-16.5, 29.25], [-15.97, 29.03], [-15.82, 28.68], [-15.75, 28.65], [-15.5, 28.75], [-14.97, 28.53], [-14.75, 28.0], [-14.85, 27.75], [-14.75, 27.5], [-14.97, 26.97], [-15.5, 26.75], [-16.03, 26.97], [-16.18, 27.32], [-16.53, 27.47], [-16.68, 27.82], [-17.03, 27.97], [-17.25, 28.5]]]]}, "2020-09-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.25, 28.5], [-17.03, 29.03], [-16.5, 29.25], [-15.97, 29.03], [-15.82, 28.68], [-15.75, 28.65], [-15.5, 28.75], [-14.97, 28.53], [-14.75, 28.0], [-14.85, 27.75], [-14.75, 27.5], [-14.85, 27.25], [-14.82, 27.18], [-14.47, 27.03], [-14.3, 26.62], [-14.18, 26.68], [-14.03, 27.03], [-13.5, 27.25], [-13.25, 27.15], [-13.0, 27.25], [-12.47, 27.03], [-12.25, 26.5], [-12.35, 26.25], [-12.25, 26.0], [-12.47, 25.47], [-12.82, 25.32], [-12.97, 24.97], [-13.32, 24.82], [-13.47, 24.47], [-14.0, 24.25], [-14.25, 24.35], [-14.5, 24.25], [-15.03, 24.47], [-15.2, 24.88], [-15.5, 24.75], [-16.03, 24.97], [-16.25, 25.5], [-16.15, 25.75], [-16.25, 26.0], [-16.15, 26.25], [-16.25, 26.5], [-16.15, 26.75], [-16.25, 27.0], [-16.15, 27.25], [-16.18, 27.32], [-16.53, 27.47], [-16.68, 27.82], [-17.03, 27.97], [-17.25, 28.5]]]]}, "2020-09-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.25, 28.5], [-17.03, 29.03], [-16.5, 29.25], [-15.97, 29.03], [-15.82, 28.68], [-15.75, 28.65], [-15.5, 28.75], [-14.97, 28.53], [-14.75, 28.0], [-14.85, 27.75], [-14.75, 27.5], [-14.85, 27.25], [-14.82, 27.18], [-14.47, 27.03], [-14.3, 26.62], [-14.18, 26.68], [-14.03, 27.03], [-13.5, 27.25], [-13.25, 27.15], [-13.0, 27.25], [-12.47, 27.03], [-12.25, 26.5], [-12.35, 26.25], [-12.25, 26.0], [-12.47, 25.47], [-12.82, 25.32], [-12.97, 24.97], [-13.32, 24.82], [-13.47, 24.47], [-14.0, 24.25], [-14.25, 24.35], [-14.5, 24.25], [-15.03, 24.47], [-15.2, 24.88], [-15.5, 24.75], [-16.03, 24.97], [-16.25, 25.5], [-16.15, 25.75], [-16.25, 26.0], [-16.15, 26.25], [-16.25, 26.5], [-16.15, 26.75], [-16.25, 27.0], [-16.15, 27.25], [-16.18, 27.32], [-16.53, 27.47], [-16.68, 27.82], [-17.03, 27.97], [-17.25, 28.5]]]]}, "2020-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.15, 26.25], [-16.25, 26.5], [-16.15, 26.75], [-16.25, 27.0], [-16.15, 27.25], [-16.25, 27.5], [-16.03, 28.03], [-15.5, 28.25], [-14.97, 28.03], [-14.75, 27.5], [-14.85, 27.25], [-14.82, 27.18], [-14.47, 27.03], [-14.3, 26.62], [-14.18, 26.68], [-14.03, 27.03], [-13.5, 27.25], [-13.25, 27.15], [-13.0, 27.25], [-12.47, 27.03], [-12.25, 26.5], [-12.35, 26.25], [-12.25, 26.0], [-12.47, 25.47], [-12.82, 25.32], [-12.97, 24.97], [-13.32, 24.82], [-13.47, 24.47], [-14.0, 24.25], [-14.25, 24.35], [-14.5, 24.25], [-15.03, 24.47], [-15.2, 24.88], [-15.5, 24.75], [-16.03, 24.97], [-16.25, 25.5], [-16.15, 25.75], [-16.25, 26.0], [-16.15, 26.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.453876060306129}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.064920534731282}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.99628302668691, 22.874337198694946, 23.008929112715578, 25.866385170657168, 27.666648414623126, 26.50171085366918]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.133811709500833, 23.11671052523451, 23.569252611681407, 29.33626740112345, 32.58796968606242, 30.734169346773285]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4947750388409418, 1.5876586393939267, 1.3881014281313355, 2.593274892627238, 4.40484325959631, 2.8833800317296836]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.0327191217297695, 2.1884393905701245, 2.3271652329078734, 4.283727478219475, 7.453876060306129, 5.398993934615078]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7350393766971022, 1.8290113332204925, 1.6778150751764187, 1.8021335567563923, 2.835648724934997, 1.7029282527912009]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.110621209670076, 2.2565920621012667, 2.37400209428461, 2.254413881262842, 3.575129531600675, 2.114965113749153]}}