{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:15:48.469210", "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-Nov-18_to_2021-Nov-24_29.5_-5.0"}, "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": 2021110002108}, "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 18 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 24 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 64791.568193892104}, "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": ["Burundi", "Rwanda", "Tanzania, United Republic of"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "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": -5.0}, "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": 29.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "29.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 29.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 32.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -5.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -2.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[28.75, -4.5], [28.85, -4.25], [28.75, -4.0], [28.97, -3.47], [29.32, -3.32], [29.35, -3.25], [29.25, -3.0], [29.35, -2.75], [29.25, -2.5], [29.47, -1.97], [29.82, -1.82], [29.97, -1.47], [30.5, -1.25], [30.75, -1.35], [31.0, -1.25], [31.53, -1.47], [31.75, -2.0], [31.65, -2.25], [31.68, -2.32], [32.03, -2.47], [32.25, -3.0], [32.15, -3.25], [32.18, -3.32], [32.53, -3.47], [32.75, -4.0], [32.53, -4.53], [32.18, -4.68], [32.03, -5.03], [31.5, -5.25], [30.97, -5.03], [30.82, -4.68], [30.5, -4.54], [30.18, -4.68], [30.15, -4.75], [30.25, -5.0], [30.03, -5.53], [29.5, -5.75], [28.97, -5.53], [28.75, -5.0], [28.85, -4.75], [28.75, -4.5]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Eastern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-11-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.25, -3.0], [30.47, -2.47], [31.0, -2.25], [31.25, -2.35], [31.5, -2.25], [32.03, -2.47], [32.25, -3.0], [32.15, -3.25], [32.18, -3.32], 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"Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.2439266802451243}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.768421416856878}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.90507203432827, 22.83476187994944, 23.168574533704884, 22.145734081896535, 23.341843079873684, 23.76922079083272, 24.435759272936025]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.392538897616475, 26.56247918316484, 27.690250135628105, 26.359717129143462, 26.56791204202858, 27.003769612060637, 27.491498048863093]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.833606140341804, 1.506289798821392, 1.8851361547417649, 1.291669769922097, 1.5265226592397059, 1.9874930851375565, 2.6747411384469677]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.2764678395660667, 2.2441536236218553, 2.869119217442119, 1.6181612522823912, 2.4160605672878432, 2.3964471260195523, 3.2439266802451243]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5059683179533638, 1.5002160037038632, 1.9147604739663346, 1.451200801677028, 1.4899209654823715, 1.9840211266257302, 2.7213832511178873]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7178820770332166, 1.9401277188245543, 2.9232370437049298, 1.7286806996902333, 1.7551091487924102, 2.4046894441456415, 3.496808756462878]}}