{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:55:52.541053", "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": "2023-Oct-30_to_2023-Nov-02_31.5_-1.0"}, "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": 2023100002330}, "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 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 02 2023"}, "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": 52528.317424368965}, "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", "Uganda"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "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": -1.0}, "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": 31.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "31.5\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": -2.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -0.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[30.47, 0.03], [31.0, 0.25], [31.5, 0.04], [32.0, 0.25], [32.53, 0.03], [32.75, -0.5], [32.65, -0.75], [32.75, -1.0], [32.65, -1.25], [32.75, -1.5], [32.53, -2.03], [32.18, -2.18], [32.03, -2.53], [31.68, -2.68], [31.53, -3.03], [31.0, -3.25], [30.75, -3.15], [30.5, -3.25], [29.97, -3.03], [29.75, -2.5], [29.85, -2.25], [29.82, -2.18], [29.75, -2.15], [29.5, -2.25], [28.97, -2.03], [28.75, -1.5], [28.97, -0.97], [29.32, -0.82], [29.47, -0.47], [30.0, -0.25], [30.3, -0.37], [30.47, 0.03]]]]}}, "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": {"2023-10-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.47, -0.47], [30.0, -0.25], [30.3, -0.37], [30.47, 0.03], [31.0, 0.25], [31.53, 0.03], [31.68, -0.32], [31.75, -0.35], [32.0, -0.25], [32.53, -0.47], [32.75, -1.0], [32.65, -1.25], [32.75, -1.5], [32.53, -2.03], [32.18, -2.18], [32.03, -2.53], [31.68, -2.68], [31.53, -3.03], [31.0, -3.25], [30.75, -3.15], [30.5, -3.25], [29.97, -3.03], [29.75, -2.5], [29.85, -2.25], [29.82, -2.18], [29.75, -2.15], [29.5, -2.25], [28.97, -2.03], [28.75, -1.5], [28.97, -0.97], [29.32, -0.82], [29.47, -0.47]]]]}, "2023-10-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.47, -0.47], [30.0, -0.25], [30.3, -0.37], [30.47, 0.03], [31.0, 0.25], [31.5, 0.04], [32.0, 0.25], [32.53, 0.03], [32.75, -0.5], [32.65, -0.75], [32.75, -1.0], [32.65, -1.25], [32.75, -1.5], [32.53, -2.03], [32.18, -2.18], [32.03, -2.53], [31.68, -2.68], [31.53, -3.03], [31.0, -3.25], [30.75, -3.15], [30.5, -3.25], [29.97, -3.03], [29.75, -2.5], [29.85, -2.25], [29.82, -2.18], [29.75, -2.15], [29.5, -2.25], [28.97, -2.03], [28.75, -1.5], [28.97, -0.97], [29.32, -0.82], [29.47, -0.47]]]]}, "2023-11-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.47, -0.47], [30.0, -0.25], [30.3, -0.37], [30.47, 0.03], [31.0, 0.25], [31.5, 0.04], [32.0, 0.25], [32.53, 0.03], [32.75, -0.5], [32.65, -0.75], [32.75, -1.0], [32.65, -1.25], [32.75, -1.5], [32.53, -2.03], [32.18, -2.18], [32.03, -2.53], [31.68, -2.68], [31.53, -3.03], [31.0, -3.25], [30.75, -3.15], [30.5, -3.25], [29.97, -3.03], [29.75, -2.5], [29.85, -2.25], [29.82, -2.18], [29.75, -2.15], [29.5, -2.25], [28.97, -2.03], [28.75, -1.5], [28.97, -0.97], [29.32, -0.82], [29.47, -0.47]]]]}, "2023-11-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.47, 0.03], [32.0, 0.25], [32.53, 0.03], [32.75, -0.5], [32.53, -1.03], [32.18, -1.18], [32.03, -1.53], [31.5, -1.75], [30.97, -1.53], [30.75, -1.0], [30.97, -0.47], [31.32, -0.32], [31.47, 0.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.1971086099051718}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.4224688519843296}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.955740449149744, 21.77458758740147, 21.977986921855234, 22.72661921524383]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.533140485792217, 23.8058372588755, 23.791692379052336, 23.602073269909]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.5456718095645847, 1.2610309277190783, 1.5108718986640128, 1.057641650819619]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.1971086099051718, 1.8732056525641383, 2.1654297448652073, 1.2370756003482484]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [2.0597508942015565, 1.7304623298677502, 2.0653357896624627, 1.5953995685603573]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.6624518515747817, 2.3252076322922504, 3.125660666243709, 1.7616506883760332]}}