{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:43.659224", "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": "2015-Aug-22_to_2015-Aug-27_8.0_26.5"}, "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": 2015080002549}, "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 22 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 27 2015"}, "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": 149481.8369309761}, "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": ["Algeria", "Libya", "Tunisia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean", "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": 26.5}, "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": 8.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "8.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 5.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 11.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 25.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 33.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.97, 25.47], [7.75, 26.0], [7.97, 26.53], [8.5, 26.75], [8.75, 26.65], [9.0, 26.75], [9.53, 26.53], [9.75, 26.0], [9.53, 25.47], [9.0, 25.25], [8.75, 25.35], [8.5, 25.25], [7.97, 25.47]]]]}, "2015-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.25, 26.5], [7.47, 27.03], [8.0, 27.25], [8.25, 27.15], [8.32, 27.18], [8.47, 27.53], [9.0, 27.75], [9.53, 27.53], [9.75, 27.0], [9.65, 26.75], [9.75, 26.5], [9.65, 26.25], [9.75, 26.0], [9.53, 25.47], [9.0, 25.25], [8.75, 25.35], [8.5, 25.25], [7.97, 25.47], [7.82, 25.82], [7.47, 25.97], [7.25, 26.5]]]]}, "2015-08-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.75, 28.0], [5.97, 28.53], [6.5, 28.75], [6.75, 28.65], [6.82, 28.68], [6.85, 28.75], [6.75, 29.0], [6.97, 29.53], [7.32, 29.68], [7.47, 30.03], [8.0, 30.25], [8.25, 30.15], [8.32, 30.18], [8.38, 30.3], [7.97, 30.47], [7.75, 31.0], [7.97, 31.53], [8.32, 31.68], [8.35, 31.75], [8.25, 32.0], [8.35, 32.25], [8.25, 32.5], [8.47, 33.03], [9.0, 33.25], [9.25, 33.15], [9.5, 33.25], [10.03, 33.03], [10.18, 32.68], [10.53, 32.53], [10.68, 32.18], [10.75, 32.15], [11.0, 32.25], [11.53, 32.03], [11.75, 31.5], [11.53, 30.97], [11.18, 30.82], [11.03, 30.47], [10.68, 30.32], [10.53, 29.97], [10.0, 29.75], [9.75, 29.85], [9.68, 29.82], [9.65, 29.75], [9.75, 29.5], [9.53, 28.97], [9.0, 28.75], [8.75, 28.85], [8.68, 28.82], [8.54, 28.5], [8.75, 28.0], [8.65, 27.75], [8.7, 27.63], [9.0, 27.75], [9.53, 27.53], [9.75, 27.0], [9.65, 26.75], [9.75, 26.5], [9.65, 26.25], [9.75, 26.0], [9.53, 25.47], [9.0, 25.25], [8.75, 25.35], [8.5, 25.25], [7.97, 25.47], [7.82, 25.82], [7.47, 25.97], [7.32, 26.32], [6.97, 26.47], [6.82, 26.82], [6.47, 26.97], [6.32, 27.32], [5.97, 27.47], [5.75, 28.0]]]]}, "2015-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.75, 32.0], [4.97, 32.53], [5.32, 32.68], [5.47, 33.03], [5.82, 33.18], [5.97, 33.53], [6.5, 33.75], [7.03, 33.53], [7.18, 33.18], [7.25, 33.15], [7.5, 33.25], [7.75, 33.15], [8.0, 33.25], [8.5, 33.04], [9.0, 33.25], [9.25, 33.15], [9.5, 33.25], [10.03, 33.03], [10.18, 32.68], [10.53, 32.53], [10.68, 32.18], [10.75, 32.15], [11.0, 32.25], [11.53, 32.03], [11.75, 31.5], [11.53, 30.97], [11.18, 30.82], [11.03, 30.47], [10.68, 30.32], [10.53, 29.97], [10.0, 29.75], [9.75, 29.85], [9.68, 29.82], [9.65, 29.75], [9.75, 29.5], [9.53, 28.97], [9.0, 28.75], [8.75, 28.85], [8.68, 28.82], [8.54, 28.5], [8.75, 28.0], [8.65, 27.75], [8.7, 27.63], [9.0, 27.75], [9.53, 27.53], [9.75, 27.0], [9.65, 26.75], [9.75, 26.5], [9.53, 25.97], [9.18, 25.82], [9.03, 25.47], [8.5, 25.25], [7.97, 25.47], [7.82, 25.82], [7.47, 25.97], [7.32, 26.32], [6.97, 26.47], [6.82, 26.82], [6.47, 26.97], [6.32, 27.32], [5.97, 27.47], [5.75, 28.0], [5.97, 28.53], [6.5, 28.75], [6.75, 28.65], [6.82, 28.68], [6.85, 28.75], [6.75, 29.0], [6.97, 29.53], [7.32, 29.68], [7.47, 30.03], [8.0, 30.25], [8.25, 30.15], [8.32, 30.18], [8.38, 30.3], [7.97, 30.47], [7.82, 30.82], [7.47, 30.97], [7.32, 31.32], [7.25, 31.35], [7.18, 31.32], [7.03, 30.97], [6.5, 30.75], [6.25, 30.85], [6.0, 30.75], [5.47, 30.97], [5.32, 31.32], [4.97, 31.47], [4.75, 32.0]]]]}, "2015-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.75, 32.0], [4.97, 32.53], [5.32, 32.68], [5.47, 33.03], [5.82, 33.18], [5.97, 33.53], [6.5, 33.75], [7.03, 33.53], [7.18, 33.18], [7.25, 33.15], [7.5, 33.25], [7.75, 33.15], [8.0, 33.25], [8.5, 33.04], [9.0, 33.25], [9.25, 33.15], [9.5, 33.25], [10.03, 33.03], [10.18, 32.68], [10.53, 32.53], [10.68, 32.18], [10.75, 32.15], [11.0, 32.25], [11.53, 32.03], [11.75, 31.5], [11.53, 30.97], [11.18, 30.82], [11.03, 30.47], [10.68, 30.32], [10.53, 29.97], [10.0, 29.75], [9.75, 29.85], [9.68, 29.82], [9.65, 29.75], [9.75, 29.5], [9.53, 28.97], [9.0, 28.75], [8.75, 28.85], [8.68, 28.82], [8.54, 28.5], [8.75, 28.0], [8.65, 27.75], [8.75, 27.5], [8.65, 27.25], [8.75, 27.0], [8.65, 26.75], [8.75, 26.5], [8.53, 25.97], [8.0, 25.75], [7.47, 25.97], [7.32, 26.32], [6.97, 26.47], [6.82, 26.82], [6.47, 26.97], [6.32, 27.32], [5.97, 27.47], [5.75, 28.0], [5.97, 28.53], [6.5, 28.75], [6.75, 28.65], [6.82, 28.68], [6.85, 28.75], [6.75, 29.0], [6.97, 29.53], [7.32, 29.68], [7.47, 30.03], [8.0, 30.25], [8.25, 30.15], [8.32, 30.18], [8.38, 30.3], [7.97, 30.47], [7.82, 30.82], [7.47, 30.97], [7.32, 31.32], [7.25, 31.35], [7.18, 31.32], [7.03, 30.97], [6.5, 30.75], [6.25, 30.85], [6.0, 30.75], [5.47, 30.97], [5.32, 31.32], [4.97, 31.47], [4.75, 32.0]]]]}, "2015-08-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.75, 32.0], [4.97, 32.53], [5.32, 32.68], [5.47, 33.03], [5.82, 33.18], [5.97, 33.53], [6.5, 33.75], [7.03, 33.53], [7.18, 33.18], [7.25, 33.15], [7.5, 33.25], [7.75, 33.15], [8.0, 33.25], [8.53, 33.03], [8.68, 32.68], [9.03, 32.53], [9.25, 32.0], [9.15, 31.75], [9.25, 31.5], [9.03, 30.97], [8.5, 30.75], [8.25, 30.85], [8.0, 30.75], [7.47, 30.97], [7.32, 31.32], [7.25, 31.35], [7.18, 31.32], [7.03, 30.97], [6.5, 30.75], [6.25, 30.85], [6.0, 30.75], [5.47, 30.97], [5.32, 31.32], [4.97, 31.47], [4.75, 32.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.817941635501711}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.891818459365417}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [34.577769863937874, 35.94898840408899, 35.78818814496253, 36.09506501056251, 35.70464322494837, 35.84223964574102]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [34.86741669123552, 36.82670352213921, 37.55932975187983, 37.67099677762815, 37.03176173909145, 36.47501945831476]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.5712938247760064, 2.4894457425005307, 2.876256340918717, 3.0927891745653637, 2.8505038716742788, 2.580986860897209]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.5905427895424964, 2.895687065494144, 3.817941635501711, 3.7068817654653685, 3.5373740965762863, 2.9194082673009802]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5694783569615072, 1.513829630011153, 1.561459451274104, 1.680583145216856, 1.565493242906983, 1.3887747788362823]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6088774368370444, 1.7006063895215566, 2.0133086806843643, 2.3069307901609526, 2.002631292544113, 1.5350832295342614]}}