{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:21:19.339228", "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-Aug-31_to_2020-Sep-03_25.0_21.0"}, "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": 2020080003047}, "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 31 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 03 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 58060.16313716715}, "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": ["Sudan"]}, "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": 21.0}, "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": 25.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "25.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 24.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 28.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 18.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 21.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-08-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.5, 19.75], [25.03, 19.53], [25.25, 19.0], [25.15, 18.75], [25.25, 18.5], [25.03, 17.97], [24.5, 17.75], [23.97, 17.97], [23.75, 18.5], [23.85, 18.75], [23.75, 19.0], [23.97, 19.53], [24.5, 19.75]]], [[[24.47, 20.47], [24.25, 21.0], [24.47, 21.53], [25.0, 21.75], [25.53, 21.53], [25.75, 21.0], [25.53, 20.47], [25.0, 20.25], [24.47, 20.47]]]]}, "2020-09-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.85, 19.25], [23.75, 19.5], [23.97, 20.03], [24.32, 20.18], [24.35, 20.25], [24.25, 20.5], [24.35, 20.75], [24.25, 21.0], [24.47, 21.53], [25.0, 21.75], [25.25, 21.65], [25.32, 21.68], [25.47, 22.03], [26.0, 22.25], [26.53, 22.03], [26.75, 21.5], [26.63, 21.2], [26.75, 21.15], [27.0, 21.25], [27.25, 21.15], [27.5, 21.25], [27.75, 21.15], [28.0, 21.25], [28.53, 21.03], [28.75, 20.5], [28.53, 19.97], [28.18, 19.82], [28.03, 19.47], [27.5, 19.25], [27.25, 19.35], [27.0, 19.25], [26.47, 19.47], [26.32, 19.82], [26.25, 19.85], [26.18, 19.82], [26.15, 19.75], [26.25, 19.5], [26.03, 18.97], [25.63, 18.8], [25.75, 18.5], [25.53, 17.97], [25.0, 17.75], [24.75, 17.85], [24.5, 17.75], [23.97, 17.97], [23.75, 18.5], [23.85, 18.75], [23.75, 19.0], [23.85, 19.25]]]]}, "2020-09-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.85, 19.25], [23.75, 19.5], [23.97, 20.03], [24.32, 20.18], [24.35, 20.25], [24.25, 20.5], [24.35, 20.75], [24.25, 21.0], [24.47, 21.53], [25.0, 21.75], [25.25, 21.65], [25.32, 21.68], [25.47, 22.03], [26.0, 22.25], [26.53, 22.03], [26.75, 21.5], [26.63, 21.2], [26.75, 21.15], [27.0, 21.25], [27.25, 21.15], [27.5, 21.25], [27.75, 21.15], [28.0, 21.25], [28.53, 21.03], [28.75, 20.5], [28.53, 19.97], [28.18, 19.82], [28.03, 19.47], [27.5, 19.25], [27.25, 19.35], [27.0, 19.25], [26.47, 19.47], [26.32, 19.82], [26.25, 19.85], [26.18, 19.82], [26.15, 19.75], [26.25, 19.5], [26.03, 18.97], [25.63, 18.8], [25.75, 18.5], [25.53, 17.97], [25.0, 17.75], [24.75, 17.85], [24.5, 17.75], [23.97, 17.97], [23.75, 18.5], [23.85, 18.75], [23.75, 19.0], [23.85, 19.25]]]]}, "2020-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.97, 20.03], [24.32, 20.18], [24.35, 20.25], [24.25, 20.5], [24.35, 20.75], [24.25, 21.0], [24.47, 21.53], [25.0, 21.75], [25.25, 21.65], [25.32, 21.68], [25.47, 22.03], [26.0, 22.25], [26.53, 22.03], [26.75, 21.5], [26.63, 21.2], [26.75, 21.15], [27.0, 21.25], [27.25, 21.15], [27.5, 21.25], [27.75, 21.15], [28.0, 21.25], [28.53, 21.03], [28.75, 20.5], [28.53, 19.97], [28.18, 19.82], [28.03, 19.47], [27.5, 19.25], [27.25, 19.35], [27.0, 19.25], [26.47, 19.47], [26.32, 19.82], [26.25, 19.85], [26.18, 19.82], [26.15, 19.75], [26.25, 19.5], [26.03, 18.97], [25.63, 18.8], [25.75, 18.5], [25.53, 17.97], [25.0, 17.75], [24.47, 17.97], [24.32, 18.32], [23.97, 18.47], [23.75, 19.0], [23.85, 19.25], [23.75, 19.5], [23.97, 20.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.576026376839593}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.7069633493518013}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.07640096352662, 32.48747625487556, 32.79844610746238, 32.63984524108929]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.254514564193414, 33.8442674330218, 33.78105698089763, 33.63305981612638]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.039540008695326, 2.487672135295236, 2.892805528552839, 2.8475554924612747]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.3092851915959614, 3.1039971926112457, 3.576026376839593, 3.158381721224316]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3564084260572475, 1.571385923703662, 1.8038199679817613, 1.736759711623876]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4293900228899017, 1.8857681455349036, 2.163370182934283, 1.8937686931592224]}}