{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:15:19.076261", "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": "2021-Oct-30_to_2021-Nov-01_19.0_-5.5"}, "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": 2021100002710}, "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 30 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 01 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 79788.16054284813}, "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": ["Angola", "Congo, The Democratic Republic of the"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "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": -5.5}, "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": 19.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "19.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 16.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 19.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -8.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -5.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[15.75, -7.0], [15.97, -6.47], [16.38, -6.3], [16.32, -6.18], [15.97, -6.03], [15.75, -5.5], [15.97, -4.97], [16.5, -4.75], [16.75, -4.85], [17.0, -4.75], [17.53, -4.97], [17.68, -5.32], [17.75, -5.35], [17.82, -5.32], [17.97, -4.97], [18.5, -4.75], [18.75, -4.85], [19.0, -4.75], [19.53, -4.97], [19.75, -5.5], [19.65, -5.75], [19.75, -6.0], [19.53, -6.53], [19.18, -6.68], [19.04, -7.0], [19.25, -7.5], [19.15, -7.75], [19.25, -8.0], [19.03, -8.53], [18.5, -8.75], [18.0, -8.54], [17.68, -8.68], [17.53, -9.03], [17.0, -9.25], [16.47, -9.03], [16.32, -8.68], [15.97, -8.53], [15.75, -8.0], [15.85, -7.75], [15.75, -7.5], [15.85, -7.25], [15.75, -7.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-10-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.75, -7.5], [15.85, -7.25], [15.75, -7.0], [15.97, -6.47], [16.38, -6.3], [16.32, -6.18], [15.97, -6.03], [15.75, -5.5], [15.97, -4.97], [16.5, -4.75], [16.75, -4.85], [17.0, -4.75], [17.53, -4.97], [17.68, -5.32], [17.75, -5.35], [17.82, -5.32], [17.97, -4.97], [18.5, -4.75], [18.75, -4.85], [19.0, -4.75], [19.53, -4.97], [19.75, -5.5], [19.65, -5.75], [19.75, -6.0], [19.53, -6.53], [19.18, -6.68], [19.04, -7.0], [19.25, -7.5], [19.15, -7.75], [19.25, -8.0], [19.03, -8.53], [18.5, -8.75], [18.0, -8.54], [17.68, -8.68], [17.53, -9.03], [17.0, -9.25], [16.47, -9.03], [16.32, -8.68], [15.97, -8.53], [15.75, -8.0], [15.85, -7.75], [15.75, -7.5]]]]}, "2021-10-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.75, -7.5], [15.85, -7.25], [15.75, -7.0], [15.97, -6.47], [16.38, -6.3], [16.32, -6.18], [15.97, -6.03], [15.75, -5.5], [15.97, -4.97], [16.5, -4.75], [16.75, -4.85], [17.0, -4.75], [17.53, -4.97], [17.68, -5.32], [17.75, -5.35], [17.82, -5.32], [17.97, -4.97], [18.5, -4.75], [18.75, -4.85], [19.0, -4.75], [19.53, -4.97], [19.75, -5.5], [19.65, -5.75], [19.75, -6.0], [19.53, -6.53], [19.18, -6.68], [19.04, -7.0], [19.25, -7.5], [19.15, -7.75], [19.25, -8.0], [19.03, -8.53], [18.5, -8.75], [18.0, -8.54], [17.68, -8.68], [17.53, -9.03], [17.0, -9.25], [16.47, -9.03], [16.32, -8.68], [15.97, -8.53], [15.75, -8.0], [15.85, -7.75], [15.75, -7.5]]]]}, "2021-11-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.75, -7.5], [15.85, -7.25], [15.75, -7.0], [15.97, -6.47], [16.38, -6.3], [16.32, -6.18], [15.97, -6.03], [15.75, -5.5], [15.97, -4.97], [16.5, -4.75], [16.75, -4.85], [17.0, -4.75], [17.53, -4.97], [17.68, -5.32], [17.75, -5.35], [17.82, -5.32], [17.97, -4.97], [18.5, -4.75], [18.75, -4.85], [19.0, -4.75], [19.53, -4.97], [19.75, -5.5], [19.65, -5.75], [19.75, -6.0], [19.53, -6.53], [19.18, -6.68], [19.04, -7.0], [19.25, -7.5], [19.15, -7.75], [19.25, -8.0], [19.03, -8.53], [18.5, -8.75], [18.0, -8.54], [17.68, -8.68], [17.53, -9.03], [17.0, -9.25], [16.47, -9.03], [16.32, -8.68], [15.97, -8.53], [15.75, -8.0], [15.85, -7.75], [15.75, -7.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.4909455490323467}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.657641221492726}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.05586758466592, 25.255916764652227, 24.810367274174666]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.191888161810198, 27.061925884735786, 26.886963146490473]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.672482461718792, 1.8574080353713849, 1.4430331673880015]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.109995450536701, 2.4909455490323467, 1.8471403876032468]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8249271821849258, 2.023926869535145, 1.5610153425288504]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2417360743444963, 2.862574098583822, 1.8543107669127807]}}