{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:21:50.493867", "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-Oct-16_to_2020-Oct-23_11.0_-3.5"}, "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": 2020100001918}, "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": "October 16 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 23 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 163395.65542375424}, "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": ["Congo", "Congo DRC", "Gabon"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa", "Equatorial.Atlantic-Ocean"]}, "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": ["South 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": -3.5}, "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": 11.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "11.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 6.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 15.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -6.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -0.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-10-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.97, -4.47], [8.32, -4.32], [8.47, -3.97], [8.82, -3.82], [8.97, -3.47], [9.32, -3.32], [9.35, -3.25], [9.25, -3.0], [9.47, -2.47], [10.0, -2.25], [10.53, -2.47], [10.75, -3.0], [10.65, -3.25], [10.75, -3.5], [10.57, -3.93], [11.0, -3.75], [11.25, -3.85], [11.5, -3.75], [12.03, -3.97], [12.25, -4.5], [12.15, -4.75], [12.25, -5.0], [12.03, -5.53], [11.5, -5.75], [11.0, -5.54], [10.5, -5.75], [10.07, -5.57], [10.25, -6.0], [10.03, -6.53], [9.5, -6.75], [9.25, -6.65], [9.0, -6.75], [8.47, -6.53], [8.32, -6.18], [7.97, -6.03], [7.75, -5.5], [7.85, -5.25], [7.75, -5.0], [7.97, -4.47]]]]}, "2020-10-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.32, -4.32], [8.47, -3.97], [8.82, -3.82], [8.97, -3.47], [9.32, -3.32], [9.35, -3.25], [9.25, -3.0], [9.47, -2.47], [10.0, -2.25], [10.53, -2.47], [10.68, -2.82], [10.75, -2.85], [11.0, -2.75], [11.53, -2.97], [11.68, -3.32], [12.03, -3.47], [12.25, -4.0], [12.15, -4.25], [12.18, -4.32], [12.53, -4.47], [12.75, -5.0], [12.96, -4.5], [12.75, -4.0], [12.97, -3.47], [13.5, -3.25], [14.03, -3.47], [14.2, -3.87], [14.5, -3.75], [15.0, -3.96], [15.5, -3.75], [16.03, -3.97], [16.25, -4.5], [16.03, -5.03], [15.68, -5.18], [15.53, -5.53], [15.0, -5.75], [14.75, -5.65], [14.5, -5.75], [14.2, -5.62], [14.03, -6.03], [13.5, -6.25], [13.2, -6.12], [13.03, -6.53], [12.5, -6.75], [11.97, -6.53], [11.75, -6.0], [11.88, -5.7], [11.75, -5.65], [11.5, -5.75], [11.0, -5.54], [10.5, -5.75], [10.2, -5.62], [10.15, -5.75], [10.25, -6.0], [10.03, -6.53], [9.5, -6.75], [9.25, -6.65], [9.0, -6.75], [8.47, -6.53], [8.32, -6.18], [7.97, -6.03], [7.75, -5.5], [7.85, -5.25], [7.75, -5.0], [7.97, -4.47], [8.32, -4.32]], [[12.63, -5.3], [12.8, -5.37], [12.85, -5.25], [12.75, -5.0], [12.63, -5.3]]], [[[8.47, -1.53], [8.25, -1.0], [8.47, -0.47], [9.0, -0.25], [9.53, -0.47], [9.75, -1.0], [9.53, -1.53], [9.0, -1.75], [8.47, -1.53]]]]}, "2020-10-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.32, -4.32], [8.47, -3.97], [8.82, -3.82], [8.97, -3.47], [9.32, -3.32], [9.35, -3.25], [9.25, -3.0], [9.47, -2.47], [10.0, -2.25], [10.53, -2.47], [10.68, -2.82], [10.75, -2.85], [11.0, -2.75], [11.53, -2.97], [11.68, -3.32], [11.75, -3.35], [12.0, -3.25], [12.25, -3.35], [12.5, -3.25], [13.0, -3.46], [13.5, -3.25], [14.03, -3.47], [14.2, -3.87], [14.5, -3.75], [15.0, -3.96], [15.5, -3.75], [16.03, -3.97], [16.25, -4.5], [16.03, -5.03], [15.68, -5.18], [15.53, -5.53], [15.0, -5.75], [14.75, -5.65], [14.5, -5.75], [14.25, -5.65], [14.18, -5.68], [14.03, -6.03], [13.5, -6.25], [13.25, -6.15], [13.18, -6.18], [13.03, -6.53], [12.5, -6.75], [11.97, -6.53], [11.75, -6.0], [11.88, -5.7], [11.75, -5.65], [11.5, -5.75], [11.0, -5.54], [10.5, -5.75], [10.2, -5.62], [10.15, -5.75], [10.25, -6.0], [10.03, -6.53], [9.5, -6.75], [9.25, -6.65], [9.0, -6.75], [8.47, -6.53], [8.32, -6.18], [7.97, -6.03], [7.75, -5.5], [7.85, -5.25], [7.75, -5.0], [7.97, -4.47], [8.32, -4.32]]], [[[6.82, -1.32], [6.97, -0.97], [7.5, -0.75], [8.0, -0.96], [8.32, -0.82], [8.47, -0.47], [9.0, -0.25], [9.53, -0.47], [9.75, -1.0], [9.65, -1.25], [9.75, -1.5], [9.53, -2.03], [9.18, -2.18], [9.15, -2.25], [9.25, -2.5], [9.03, -3.03], [8.5, -3.25], [8.25, -3.15], [8.0, -3.25], [7.5, -3.04], [7.0, -3.25], [6.47, -3.03], [6.25, -2.5], [6.35, -2.25], [6.25, -2.0], [6.47, -1.47], [6.82, -1.32]]]]}, "2020-10-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[6.47, -1.47], [6.82, -1.32], [6.97, -0.97], [7.5, -0.75], [8.0, -0.96], [8.32, -0.82], [8.47, -0.47], [9.0, -0.25], [9.53, -0.47], [9.75, -1.0], [9.65, -1.25], [9.68, -1.32], [10.03, -1.47], [10.18, -1.82], [10.53, -1.97], [10.68, -2.32], [11.03, -2.47], [11.18, -2.82], [11.53, -2.97], [11.68, -3.32], [11.75, -3.35], [12.0, -3.25], [12.25, -3.35], [12.5, -3.25], [13.0, -3.46], [13.5, -3.25], [14.03, -3.47], [14.2, -3.87], [14.5, -3.75], [15.0, -3.96], [15.5, -3.75], [16.03, -3.97], [16.25, -4.5], [16.03, -5.03], [15.68, -5.18], [15.53, -5.53], [15.0, -5.75], [14.75, -5.65], [14.5, -5.75], [14.25, -5.65], [14.18, -5.68], [14.03, -6.03], [13.5, -6.25], [13.25, -6.15], [13.18, -6.18], [13.03, -6.53], [12.5, -6.75], [11.97, -6.53], [11.75, -6.0], [11.88, -5.7], [11.47, -5.53], [11.32, -5.18], [11.25, -5.15], [11.0, -5.25], [10.75, -5.15], [10.5, -5.25], [10.25, -5.15], [10.18, -5.18], [10.15, -5.25], [10.25, -5.5], [10.15, -5.75], [10.25, -6.0], [10.03, -6.53], [9.5, -6.75], [8.97, -6.53], [8.75, -6.0], [8.85, -5.75], [8.82, -5.68], [8.47, -5.53], [8.25, -5.0], [8.47, -4.47], [8.82, -4.32], [8.85, -4.25], [8.75, -4.0], [8.97, -3.47], [9.32, -3.32], [9.46, -3.0], [9.32, -2.68], [9.2, -2.62], [9.03, -3.03], [8.5, -3.25], [8.25, -3.15], [8.0, -3.25], [7.5, -3.04], [7.0, -3.25], [6.47, -3.03], [6.25, -2.5], [6.35, -2.25], [6.25, -2.0], [6.47, -1.47]]]]}, "2020-10-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[6.47, -1.47], [6.82, -1.32], [6.97, -0.97], [7.5, -0.75], [8.0, -0.96], [8.32, -0.82], [8.47, -0.47], [9.0, -0.25], [9.53, -0.47], [9.75, -1.0], [9.65, -1.25], [9.68, -1.32], [10.03, -1.47], [10.18, -1.82], [10.53, -1.97], [10.68, -2.32], [11.03, -2.47], [11.18, -2.82], [11.53, -2.97], [11.68, -3.32], [11.75, -3.35], [12.0, -3.25], [12.25, -3.35], [12.5, -3.25], [13.03, -3.47], [13.18, -3.82], [13.25, -3.85], [13.5, -3.75], [14.0, -3.96], [14.5, -3.75], [15.0, -3.96], [15.5, -3.75], [16.03, -3.97], [16.25, -4.5], [16.03, -5.03], [15.68, -5.18], [15.53, -5.53], [15.0, -5.75], [14.75, -5.65], [14.5, -5.75], [14.25, -5.65], [14.18, -5.68], [14.03, -6.03], [13.5, -6.25], [13.25, -6.15], [13.18, -6.18], [13.03, -6.53], [12.5, -6.75], [11.97, -6.53], [11.75, -6.0], [11.88, -5.7], [11.47, -5.53], [11.32, -5.18], [11.25, -5.15], [11.0, -5.25], [10.75, -5.15], [10.5, -5.25], [10.25, -5.15], [10.0, -5.25], [9.47, -5.03], [9.25, -4.5], [9.47, -3.97], [9.82, -3.82], [9.85, -3.75], [9.75, -3.5], [9.85, -3.25], [9.82, -3.18], [9.47, -3.03], [9.32, -2.68], [9.2, -2.62], [9.03, -3.03], [8.5, -3.25], [8.25, -3.15], [8.0, -3.25], [7.5, -3.04], [7.0, -3.25], [6.47, -3.03], [6.25, -2.5], [6.35, -2.25], [6.25, -2.0], [6.47, -1.47]]]]}, "2020-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.75, -2.0], [8.97, -1.47], [9.5, -1.25], [10.03, -1.47], [10.18, -1.82], [10.53, -1.97], [10.68, -2.32], [11.03, -2.47], [11.18, -2.82], [11.53, -2.97], [11.75, -3.5], [11.53, -4.03], [11.0, -4.25], [10.47, -4.03], [10.32, -3.68], [9.97, -3.53], [9.82, -3.18], [9.47, -3.03], [9.32, -2.68], [8.97, -2.53], [8.75, -2.0]]]]}, "2020-10-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.75, -2.0], [8.97, -1.47], [9.5, -1.25], [10.03, -1.47], [10.18, -1.82], [10.53, -1.97], [10.68, -2.32], [11.03, -2.47], [11.18, -2.82], [11.53, -2.97], [11.75, -3.5], [11.53, -4.03], [11.0, -4.25], [10.47, -4.03], [10.32, -3.68], [9.97, -3.53], [9.82, -3.18], [9.47, -3.03], [9.32, -2.68], [8.97, -2.53], [8.75, -2.0]]]]}, "2020-10-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[9.75, -3.0], [9.97, -2.47], [10.5, -2.25], [11.03, -2.47], [11.18, -2.82], [11.53, -2.97], [11.75, -3.5], [11.53, -4.03], [11.0, -4.25], [10.47, -4.03], [10.32, -3.68], [9.97, -3.53], [9.75, -3.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.7175117693202537}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.8902829730244183}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.50825453175372, 25.868502410043618, 25.895572029312802, 25.987556187594123, 26.12654296573936, 26.193415520129463, 26.34470494503762, 26.038577997994366]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.822126056500736, 26.807524510735902, 27.08877875589849, 27.090291650147662, 27.243670309971208, 26.535275588484467, 26.551196999391493, 26.29047489046644]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.7004402496880076, 0.9336822886682311, 0.8690203682070592, 0.8674876915523642, 0.9669481321609817, 0.9026781913584472, 1.0312545505365165, 1.0020539523434309]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.7989441922851483, 1.5240903127792649, 1.525539649464804, 1.394473287990479, 1.7175117693202537, 1.002231105768658, 1.3581856479283374, 1.1104604478591114]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5114848563296586, 1.6879169452172442, 1.540121775489052, 1.4742068452188803, 1.5871092062342713, 1.4320350492469203, 1.6054493730650354, 1.4593520095937564]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6875523287796883, 2.128395441636986, 1.809422019939822, 1.9876957623539688, 1.9771346390603701, 1.50081400593225, 1.9625868527906445, 1.590764308270503]}}