{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:59.428195", "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": "2011-Nov-16_to_2011-Nov-20_356.5_22.0"}, "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": 2011110002237}, "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": "November 16 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 20 2011"}, "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": 62844.618982225744}, "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", "Mali"]}, "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": 22.0}, "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": 356.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "356.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 355.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 359.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 20.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 23.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-11-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.53, 23.03], [-4.18, 23.18], [-4.03, 23.53], [-3.5, 23.75], [-3.25, 23.65], [-3.0, 23.75], [-2.75, 23.65], [-2.5, 23.75], [-2.25, 23.65], [-2.0, 23.75], [-1.47, 23.53], [-1.25, 23.0], [-1.47, 22.47], [-1.82, 22.32], [-1.85, 22.25], [-1.75, 22.0], [-1.97, 21.47], [-2.5, 21.25], [-2.75, 21.35], [-3.0, 21.25], [-3.25, 21.35], [-3.5, 21.25], [-3.75, 21.35], [-4.0, 21.25], [-4.53, 21.47], [-4.75, 22.0], [-4.65, 22.25], [-4.75, 22.5], [-4.53, 23.03]]]]}, "2011-11-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.53, 23.03], [-4.18, 23.18], [-4.03, 23.53], [-3.5, 23.75], [-3.25, 23.65], [-3.0, 23.75], [-2.75, 23.65], [-2.68, 23.68], [-2.53, 24.03], [-2.0, 24.25], [-1.47, 24.03], [-1.32, 23.68], [-1.25, 23.65], [-1.0, 23.75], [-0.75, 23.65], [-0.5, 23.75], [0.03, 23.53], [0.25, 23.0], [0.03, 22.47], [-0.5, 22.25], [-0.75, 22.35], [-0.82, 22.32], [-0.85, 22.25], [-0.75, 22.0], [-0.93, 21.57], [-0.5, 21.75], [0.03, 21.53], [0.25, 21.0], [0.03, 20.47], [-0.5, 20.25], [-1.03, 20.47], [-1.25, 21.0], [-1.07, 21.43], [-1.5, 21.25], [-1.75, 21.35], [-2.0, 21.25], [-2.25, 21.35], [-2.5, 21.25], [-2.75, 21.35], [-3.0, 21.25], [-3.25, 21.35], [-3.5, 21.25], [-3.75, 21.35], [-4.0, 21.25], [-4.53, 21.47], [-4.75, 22.0], [-4.65, 22.25], [-4.75, 22.5], [-4.53, 23.03]]]]}, "2011-11-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.53, 23.03], [-4.18, 23.18], [-4.03, 23.53], [-3.5, 23.75], [-3.25, 23.65], [-3.0, 23.75], [-2.75, 23.65], [-2.68, 23.68], [-2.53, 24.03], [-2.0, 24.25], [-1.47, 24.03], [-1.32, 23.68], [-1.25, 23.65], [-1.0, 23.75], [-0.75, 23.65], [-0.5, 23.75], [0.03, 23.53], [0.25, 23.0], [0.03, 22.47], [-0.5, 22.25], [-0.75, 22.35], [-0.82, 22.32], [-0.85, 22.25], [-0.82, 22.18], [-0.47, 22.03], [-0.32, 21.68], [0.03, 21.53], [0.25, 21.0], [0.03, 20.47], [-0.5, 20.25], [-1.03, 20.47], [-1.18, 20.82], [-1.53, 20.97], [-1.68, 21.32], [-1.75, 21.35], [-2.0, 21.25], [-2.25, 21.35], [-2.5, 21.25], [-2.75, 21.35], [-3.0, 21.25], [-3.25, 21.35], [-3.5, 21.25], [-3.75, 21.35], [-4.0, 21.25], [-4.53, 21.47], [-4.75, 22.0], [-4.65, 22.25], [-4.75, 22.5], [-4.53, 23.03]]]]}, "2011-11-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.68, 23.18], [-3.53, 23.53], [-3.0, 23.75], [-2.75, 23.65], [-2.68, 23.68], [-2.53, 24.03], [-2.0, 24.25], [-1.47, 24.03], [-1.32, 23.68], [-1.25, 23.65], [-1.0, 23.75], [-0.75, 23.65], [-0.5, 23.75], [0.03, 23.53], [0.25, 23.0], [0.03, 22.47], [-0.5, 22.25], [-0.75, 22.35], [-0.82, 22.32], [-0.85, 22.25], [-0.82, 22.18], [-0.47, 22.03], [-0.32, 21.68], [0.03, 21.53], [0.25, 21.0], [0.03, 20.47], [-0.5, 20.25], [-1.03, 20.47], [-1.18, 20.82], [-1.53, 20.97], [-1.68, 21.32], [-1.75, 21.35], [-2.0, 21.25], [-2.25, 21.35], [-2.5, 21.25], [-2.75, 21.35], [-3.0, 21.25], [-3.25, 21.35], [-3.5, 21.25], [-3.75, 21.35], [-4.0, 21.25], [-4.53, 21.47], [-4.75, 22.0], [-4.53, 22.53], [-4.18, 22.68], [-4.03, 23.03], [-3.68, 23.18]]]]}, "2011-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.03, 21.47], [-4.25, 22.0], [-4.03, 22.53], [-3.5, 22.75], [-2.97, 22.53], [-2.75, 22.0], [-2.97, 21.47], [-3.5, 21.25], [-4.03, 21.47]]], [[[-2.65, 22.75], [-2.75, 23.0], [-2.53, 23.53], [-2.0, 23.75], [-1.75, 23.65], [-1.5, 23.75], [-1.0, 23.54], [-0.5, 23.75], [0.03, 23.53], [0.25, 23.0], [0.03, 22.47], [-0.5, 22.25], [-0.8, 22.38], [-0.87, 22.2], [-0.47, 22.03], [-0.25, 21.5], [-0.47, 20.97], [-1.0, 20.75], [-1.53, 20.97], [-1.7, 21.38], [-2.0, 21.25], [-2.53, 21.47], [-2.75, 22.0], [-2.65, 22.25], [-2.75, 22.5], [-2.65, 22.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.302979256597212}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.5727676686573946}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.058824408100463, 25.305352549642976, 25.211104964794572, 25.08068976764912, 24.720911818837294]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.2575283290966, 26.889847371473934, 26.738160052757053, 26.62815678211598, 25.96414188209627]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.099801122827552, 3.6340905288289624, 3.6067790469273757, 3.660851498266962, 3.748383296956696]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.4695676419019037, 4.2341701378326775, 4.248706024021374, 4.302979256597212, 4.294290679396568]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3666499457805363, 1.593782729976998, 1.5640551316294733, 1.5492247427870631, 1.5626536412716674]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5171288993035936, 1.848732683543589, 1.8412327027102486, 1.7542843198018068, 1.698649296498223]}}