{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:54:33.390135", "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-Jul-09_to_2023-Jul-11_33.5_-9.0"}, "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": 2023070001685}, "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": "July 09 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 11 2023"}, "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": 118680.59219868368}, "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": ["Malawi", "Tanzania, United Republic of", "Zambia"]}, "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": -9.0}, "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": 33.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "33.5\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": 35.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -12.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -8.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[28.75, -10.5], [28.97, -9.97], [29.5, -9.75], [29.75, -9.85], [29.82, -9.82], [29.97, -9.47], [30.32, -9.32], [30.47, -8.97], [30.82, -8.82], [30.85, -8.75], [30.75, -8.5], [30.97, -7.97], [31.5, -7.75], [32.03, -7.97], [32.18, -8.32], [32.5, -8.46], [33.0, -8.25], [33.25, -8.35], [33.5, -8.25], [33.75, -8.35], [33.82, -8.32], [33.97, -7.97], [34.5, -7.75], [34.75, -7.85], [35.0, -7.75], [35.53, -7.97], [35.75, -8.5], [35.65, -8.75], [35.75, -9.0], [35.65, -9.25], [35.75, -9.5], [35.53, -10.03], [35.0, -10.25], [34.75, -10.15], [34.63, -10.2], [34.75, -10.5], [34.65, -10.75], [34.75, -11.0], [34.65, -11.25], [34.75, -11.5], [34.53, -12.03], [34.0, -12.25], [33.75, -12.15], [33.5, -12.25], [32.97, -12.03], [32.75, -11.5], [32.53, -12.03], [32.18, -12.18], [32.03, -12.53], [31.5, -12.75], [30.97, -12.53], [30.82, -12.18], [30.47, -12.03], [30.32, -11.68], [29.97, -11.53], [29.82, -11.18], [29.75, -11.15], [29.5, -11.25], [28.97, -11.03], [28.75, -10.5]], [[32.93, -11.07], [32.68, -11.18], [32.65, -11.25], [32.75, -11.5], [32.93, -11.07]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Eastern-Africa", "E.Southern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-07-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.5, -11.25], [28.97, -11.03], [28.75, -10.5], [28.97, -9.97], [29.5, -9.75], [29.75, -9.85], [29.82, -9.82], [29.97, -9.47], [30.32, -9.32], [30.47, -8.97], [30.82, -8.82], [30.85, -8.75], [30.75, -8.5], [30.97, -7.97], [31.5, -7.75], [32.03, -7.97], [32.18, -8.32], [32.5, -8.46], [33.0, -8.25], [33.25, -8.35], [33.5, -8.25], [33.75, -8.35], [33.82, -8.32], [33.97, -7.97], [34.5, -7.75], [34.75, -7.85], [35.0, -7.75], [35.53, -7.97], [35.75, -8.5], [35.65, -8.75], [35.75, -9.0], [35.65, -9.25], [35.75, -9.5], [35.53, -10.03], [35.0, -10.25], [34.75, -10.15], [34.63, -10.2], [34.75, -10.5], [34.65, -10.75], [34.75, -11.0], [34.65, -11.25], [34.75, -11.5], [34.53, -12.03], [34.0, -12.25], [33.75, 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-7.97], [35.75, -8.5], [35.65, -8.75], [35.75, -9.0], [35.65, -9.25], [35.75, -9.5], [35.53, -10.03], [35.0, -10.25], [34.75, -10.15], [34.63, -10.2], [34.75, -10.5], [34.65, -10.75], [34.75, -11.0], [34.65, -11.25], [34.75, -11.5], [34.53, -12.03], [34.0, -12.25], [33.75, -12.15], [33.5, -12.25], [32.97, -12.03], [32.75, -11.5], [32.53, -12.03], [32.18, -12.18], [32.03, -12.53], [31.5, -12.75], [30.97, -12.53], [30.82, -12.18], [30.47, -12.03], [30.32, -11.68], [29.97, -11.53], [29.82, -11.18], [29.75, -11.15], [29.5, -11.25]], [[32.93, -11.07], [32.68, -11.18], [32.65, -11.25], [32.75, -11.5], [32.93, -11.07]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.354867011218062}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.7357383457174347}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.350120865484143, 19.47347771327759, 19.18490690801235]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.56886904616954, 22.772502681387607, 23.16071257630898]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.108062534062959, 3.2003728915500154, 2.898779611539329]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.1783459589870517, 4.354867011218062, 3.7514753983567743]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5554428253249175, 2.4266803398142285, 2.334328287331235]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0121759801681174, 2.9682378030207848, 3.021252192315846]}}