{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:10.097937", "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": "2012-Dec-21_to_2012-Dec-25_2.5_34.0"}, "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": 2012120002430}, "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": "December 21 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 25 2012"}, "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": 73836.62677134032}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean"]}, "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": 34.0}, "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": 2.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "2.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": -1.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 3.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 32.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 36.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-12-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[1.97, 33.47], [1.75, 34.0], [1.97, 34.53], [2.5, 34.75], [2.75, 34.65], [3.0, 34.75], [3.53, 34.53], [3.75, 34.0], [3.53, 33.47], [3.0, 33.25], [2.75, 33.35], [2.5, 33.25], [1.97, 33.47]]]]}, "2012-12-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.03, 35.03], [-1.5, 35.25], [-1.25, 35.15], [-1.0, 35.25], [-0.75, 35.15], [-0.5, 35.25], [-0.25, 35.15], [0.0, 35.25], [0.25, 35.15], [0.5, 35.25], [0.8, 35.13], [0.97, 35.53], [1.5, 35.75], [2.03, 35.53], [2.25, 35.0], [2.07, 34.57], [2.5, 34.75], [2.75, 34.65], [3.0, 34.75], [3.53, 34.53], [3.75, 34.0], [3.53, 33.47], [3.18, 33.32], [3.03, 32.97], [2.5, 32.75], [2.25, 32.85], [2.18, 32.82], [2.03, 32.47], [1.5, 32.25], [1.0, 32.46], [0.5, 32.25], [-0.03, 32.47], [-0.25, 33.0], [-0.03, 33.53], [0.32, 33.68], [0.38, 33.8], [0.25, 33.85], [0.0, 33.75], [-0.25, 33.85], [-0.32, 33.82], [-0.47, 33.47], [-1.0, 33.25], [-1.25, 33.35], [-1.5, 33.25], [-2.03, 33.47], [-2.25, 34.0], [-2.15, 34.25], [-2.25, 34.5], [-2.03, 35.03]], [[1.75, 34.15], [1.82, 34.18], [1.93, 34.43], [1.5, 34.25], [1.75, 34.15]], [[1.2, 34.38], [1.12, 34.2], [1.25, 34.15], [1.5, 34.25], [1.2, 34.38]]]]}, "2012-12-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.03, 35.03], [-1.68, 35.18], [-1.53, 35.53], [-1.0, 35.75], [-0.75, 35.65], [-0.5, 35.75], [-0.25, 35.65], [0.0, 35.75], [0.25, 35.65], [0.32, 35.68], [0.47, 36.03], [0.82, 36.18], [0.97, 36.53], [1.32, 36.68], [1.47, 37.03], [2.0, 37.25], [2.53, 37.03], [2.75, 36.5], [2.65, 36.25], [2.75, 36.0], [2.54, 35.5], [2.68, 35.18], [3.03, 35.03], [3.18, 34.68], [3.53, 34.53], [3.75, 34.0], [3.53, 33.47], [3.18, 33.32], [3.03, 32.97], [2.5, 32.75], [2.25, 32.85], [2.18, 32.82], [2.03, 32.47], [1.5, 32.25], [1.0, 32.46], [0.5, 32.25], [-0.03, 32.47], [-0.25, 33.0], [-0.03, 33.53], [0.32, 33.68], [0.38, 33.8], [0.25, 33.85], [0.0, 33.75], [-0.25, 33.85], [-0.32, 33.82], [-0.47, 33.47], [-1.0, 33.25], [-1.25, 33.35], [-1.5, 33.25], [-2.03, 33.47], [-2.25, 34.0], [-2.15, 34.25], [-2.25, 34.5], [-2.03, 35.03]]]]}, "2012-12-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.03, 35.03], [-1.68, 35.18], [-1.53, 35.53], [-1.0, 35.75], [-0.75, 35.65], [-0.5, 35.75], [-0.25, 35.65], [0.0, 35.75], [0.25, 35.65], [0.32, 35.68], [0.47, 36.03], [0.82, 36.18], [0.97, 36.53], [1.32, 36.68], [1.47, 37.03], [2.0, 37.25], [2.53, 37.03], [2.75, 36.5], [2.65, 36.25], [2.75, 36.0], [2.54, 35.5], [2.68, 35.18], [3.03, 35.03], [3.18, 34.68], [3.53, 34.53], [3.75, 34.0], [3.53, 33.47], [3.18, 33.32], [3.03, 32.97], [2.5, 32.75], [2.25, 32.85], [2.18, 32.82], [2.03, 32.47], [1.5, 32.25], [1.0, 32.46], [0.5, 32.25], [-0.03, 32.47], [-0.25, 33.0], [-0.03, 33.53], [0.32, 33.68], [0.38, 33.8], [0.25, 33.85], [0.0, 33.75], [-0.25, 33.85], [-0.32, 33.82], [-0.47, 33.47], [-1.0, 33.25], [-1.25, 33.35], [-1.5, 33.25], [-2.03, 33.47], [-2.25, 34.0], [-2.15, 34.25], [-2.25, 34.5], [-2.03, 35.03]]]]}, "2012-12-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.53, 34.47], [-1.75, 35.0], 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11.636513347392963, 12.205060579855513, 12.492747759405745, 12.606812451512951]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.820119833147658, 14.434679579676413, 15.252821913053538, 15.622005846788056, 15.098861385153725]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.393598141997046, 4.289513845751976, 4.185109562664791, 4.624655447073805, 4.22929407259297]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.55276054475695, 5.776483300773236, 5.256265565167553, 5.818174829128111, 4.740224815759689]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6295415644092794, 1.6713251930067912, 1.5763436402264916, 1.7094581394787929, 1.546196359642342]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7027045401050014, 2.2837767121732915, 2.037563843748406, 2.098023471136825, 1.748033052796799]}}