{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:36.769554", "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": "2018-Nov-20_to_2018-Nov-24_42.5_0.5"}, "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": 2018110002400}, "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 20 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 24 2018"}, "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": 123618.87126844228}, "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": ["Kenya", "Somalia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-Africa", "S.Eastern-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": 0.5}, "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": 42.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "42.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 38.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 42.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -1.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 2.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.75, 2.0], [39.97, 2.53], [40.5, 2.75], [41.03, 2.53], [41.18, 2.18], [41.53, 2.03], [41.68, 1.68], [42.0, 1.54], [42.5, 1.75], [43.03, 1.53], [43.25, 1.0], [43.15, 0.75], [43.25, 0.5], [43.03, -0.03], [42.68, -0.18], [42.65, -0.25], [42.75, -0.5], [42.53, -1.03], [42.0, -1.25], [41.75, -1.15], [41.5, -1.25], [41.2, -1.12], [41.03, -1.53], [40.5, -1.75], [39.97, -1.53], [39.75, -1.0], [39.97, -0.47], [40.5, -0.25], [40.8, -0.38], [40.85, -0.25], [40.82, -0.18], [40.47, -0.03], [40.25, 0.5], [40.46, 1.0], [40.32, 1.32], [39.97, 1.47], [39.75, 2.0]]]]}, "2018-11-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.97, 1.53], [39.32, 1.68], [39.35, 1.75], [39.25, 2.0], [39.47, 2.53], [39.82, 2.68], [39.97, 3.03], [40.5, 3.25], [41.03, 3.03], [41.18, 2.68], [41.25, 2.65], [41.5, 2.75], [42.03, 2.53], [42.18, 2.18], [42.53, 2.03], [42.68, 1.68], [43.03, 1.53], [43.25, 1.0], [43.15, 0.75], [43.25, 0.5], [43.03, -0.03], [42.68, -0.18], [42.65, -0.25], [42.75, -0.5], [42.53, -1.03], [42.0, -1.25], [41.75, -1.15], [41.68, -1.18], [41.53, -1.53], [41.18, -1.68], [41.03, -2.03], [40.5, -2.25], [40.25, -2.15], [40.0, -2.25], [39.47, -2.03], [39.25, -1.5], [39.46, -1.0], [39.25, -0.5], [39.35, -0.25], [39.32, -0.18], [38.97, -0.03], [38.75, 0.5], [38.85, 0.75], [38.75, 1.0], [38.97, 1.53]]]]}, "2018-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.25, 0.5], [38.47, 1.03], [38.82, 1.18], [38.85, 1.25], [38.75, 1.5], [38.97, 2.03], [39.32, 2.18], [39.47, 2.53], [39.82, 2.68], [39.97, 3.03], [40.5, 3.25], [41.03, 3.03], [41.18, 2.68], [41.25, 2.65], [41.5, 2.75], [42.03, 2.53], [42.18, 2.18], [42.53, 2.03], [42.68, 1.68], [43.03, 1.53], [43.25, 1.0], [43.15, 0.75], [43.25, 0.5], [43.03, -0.03], [42.68, -0.18], [42.65, -0.25], [42.75, -0.5], [42.53, -1.03], [42.0, -1.25], [41.75, -1.15], [41.68, -1.18], [41.53, -1.53], [41.18, -1.68], [41.03, -2.03], [40.5, -2.25], [40.25, -2.15], [40.0, -2.25], [39.47, -2.03], [39.25, -1.5], [39.38, -1.2], [38.97, -1.03], [38.75, -0.5], [38.85, -0.25], [38.82, -0.18], [38.47, -0.03], [38.25, 0.5]]]]}, "2018-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.25, 0.5], [38.47, 1.03], [38.82, 1.18], [38.85, 1.25], [38.75, 1.5], [38.97, 2.03], [39.32, 2.18], [39.47, 2.53], [39.82, 2.68], [39.97, 3.03], [40.5, 3.25], [41.03, 3.03], [41.18, 2.68], [41.25, 2.65], [41.5, 2.75], [42.03, 2.53], [42.18, 2.18], [42.53, 2.03], [42.68, 1.68], [43.03, 1.53], [43.25, 1.0], [43.15, 0.75], [43.25, 0.5], [43.03, -0.03], [42.68, -0.18], [42.53, -0.53], [42.18, -0.68], [42.03, -1.03], [41.68, -1.18], [41.53, -1.53], [41.18, -1.68], [41.03, -2.03], [40.5, -2.25], [40.25, -2.15], [40.0, -2.25], [39.47, -2.03], [39.25, -1.5], [39.38, -1.2], [38.97, -1.03], [38.75, -0.5], [38.85, -0.25], [38.82, -0.18], [38.47, -0.03], [38.25, 0.5]]]]}, "2018-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.47, 1.03], [38.88, 1.2], [38.75, 1.5], [38.97, 2.03], [39.5, 2.25], [39.75, 2.15], [40.0, 2.25], [40.53, 2.03], [40.75, 1.5], [40.53, 0.97], [40.0, 0.75], [39.75, 0.85], [39.63, 0.8], [39.68, 0.68], [40.03, 0.53], [40.18, 0.18], [40.53, 0.03], [40.7, -0.38], [41.0, -0.25], [41.53, -0.47], [41.75, -1.0], [41.53, -1.53], [41.0, -1.75], [40.47, -1.53], [40.3, -1.12], [40.0, -1.25], [39.75, -1.15], [39.5, -1.25], [38.97, -1.03], [38.75, -0.5], [38.85, -0.25], [38.82, -0.18], [38.47, -0.03], [38.25, 0.5], [38.47, 1.03]]], [[[41.97, -0.03], [41.75, 0.5], [41.97, 1.03], [42.5, 1.25], [43.03, 1.03], [43.25, 0.5], [43.03, -0.03], [42.5, -0.25], [41.97, -0.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.074133629247058}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.0147059304696437}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.594844145422314, 30.080656553018855, 30.021400722980047, 29.917210516234263, 29.32334925637082]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.811768409360752, 31.509532703311265, 31.360202920825145, 31.039940139942644, 29.900843682892912]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.5633689955435295, 2.1336798706278537, 2.1301030542193926, 1.9982480204232134, 1.7159924117402383]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.117517355767461, 3.074133629247058, 2.9744713316010234, 2.896380786919849, 2.0657603980248496]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6402239930659879, 1.9609584235116557, 1.8806242562851854, 1.6691137003331455, 1.404420185862044]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.1386209599752948, 2.4613996222461414, 2.3723965614491282, 2.0076730314299067, 1.4986056897922393]}}