{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:19:45.079273", "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-Apr-28_to_2020-May-03_30.0_-17.0"}, "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": 2020040002576}, "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": "April 28 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 03 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 96687.78272120381}, "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": ["Zimbabwe"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa"]}, "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": -17.0}, "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": 30.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "30.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 28.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 32.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -20.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -16.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.47, -19.03], [30.25, -18.5], [30.47, -17.97], [31.0, -17.75], [31.5, -17.96], [32.0, -17.75], [32.53, -17.97], [32.75, -18.5], [32.53, -19.03], [32.0, -19.25], [31.5, -19.04], [31.0, -19.25], [30.47, -19.03]]]]}, "2020-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[28.97, -17.97], [29.38, -17.8], [29.25, -17.5], [29.35, -17.25], [29.25, -17.0], [29.47, -16.47], [30.0, -16.25], [30.25, -16.35], [30.5, -16.25], [31.03, -16.47], [31.18, -16.82], [31.25, -16.85], [31.5, -16.75], [31.75, -16.85], [32.0, -16.75], [32.53, -16.97], [32.75, -17.5], [32.54, -18.0], [32.75, -18.5], [32.65, -18.75], [32.68, -18.82], [33.03, -18.97], [33.25, -19.5], [33.15, -19.75], [33.25, -20.0], [33.03, -20.53], [32.5, -20.75], [32.25, -20.65], [32.0, -20.75], [31.47, -20.53], [31.32, -20.18], [31.2, -20.12], [31.03, -20.53], [30.5, -20.75], [30.25, -20.65], [30.0, -20.75], [29.47, -20.53], [29.25, -20.0], [29.38, -19.7], [28.97, -19.53], [28.75, -19.0], [28.85, -18.75], [28.75, -18.5], [28.97, -17.97]]]]}, "2020-04-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.38, -17.8], [29.25, -17.5], [29.35, -17.25], [29.25, -17.0], [29.47, -16.47], [30.0, -16.25], [30.25, -16.35], [30.5, -16.25], [31.03, -16.47], [31.18, -16.82], [31.25, -16.85], [31.5, -16.75], [31.75, -16.85], [32.0, -16.75], [32.53, -16.97], [32.75, -17.5], [32.54, -18.0], [32.75, -18.5], [32.65, -18.75], [32.68, -18.82], [33.03, -18.97], [33.25, -19.5], [33.15, -19.75], [33.25, -20.0], [33.03, -20.53], [32.5, -20.75], [32.25, -20.65], [32.0, -20.75], [31.47, -20.53], [31.32, -20.18], [31.2, -20.12], [31.03, -20.53], [30.5, -20.75], [30.25, -20.65], [30.0, -20.75], [29.47, -20.53], [29.25, -20.0], [29.38, -19.7], [29.25, -19.65], [29.0, -19.75], [28.47, -19.53], [28.25, -19.0], [28.47, -18.47], [28.82, -18.32], [28.97, -17.97], [29.38, -17.8]]]]}, "2020-05-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[28.75, -18.0], [28.96, -17.5], [28.75, -17.0], [28.97, -16.47], [29.5, -16.25], [29.75, -16.35], [30.0, -16.25], [30.25, -16.35], [30.5, -16.25], [31.03, -16.47], [31.18, -16.82], [31.25, -16.85], [31.5, -16.75], [31.75, -16.85], [32.0, -16.75], [32.53, -16.97], [32.75, -17.5], [32.54, -18.0], [32.75, -18.5], [32.65, -18.75], [32.68, -18.82], [33.03, -18.97], [33.25, -19.5], [33.15, -19.75], [33.25, -20.0], [33.03, -20.53], [32.5, -20.75], [32.25, -20.65], [32.0, -20.75], [31.47, -20.53], [31.32, -20.18], [31.2, -20.12], [31.03, -20.53], [30.5, -20.75], [30.25, -20.65], [30.0, -20.75], [29.47, -20.53], [29.25, -20.0], [29.38, -19.7], [29.25, -19.65], [29.0, -19.75], [28.47, -19.53], [28.25, -19.0], [28.47, -18.47], [28.82, -18.32], [28.85, -18.25], [28.75, -18.0]]]]}, "2020-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[28.75, -18.0], [28.96, -17.5], [28.75, -17.0], [28.97, -16.47], [29.5, -16.25], [29.75, -16.35], [30.0, -16.25], [30.25, -16.35], [30.5, -16.25], [31.03, -16.47], [31.18, -16.82], [31.25, -16.85], [31.5, -16.75], [32.03, -16.97], [32.25, -17.5], [32.03, -18.03], [31.5, -18.25], [31.25, -18.15], [31.0, -18.25], [30.75, -18.15], [30.63, -18.2], [30.75, -18.5], [30.53, -19.03], [30.0, -19.25], [29.75, -19.15], [29.68, -19.18], [29.53, -19.53], [29.0, -19.75], [28.47, -19.53], [28.25, -19.0], [28.47, -18.47], [28.82, -18.32], [28.85, -18.25], [28.75, -18.0]]]]}, "2020-05-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[28.97, -16.47], [29.5, -16.25], [29.75, -16.35], [30.0, -16.25], [30.25, -16.35], [30.5, -16.25], [31.03, -16.47], [31.25, -17.0], [31.15, -17.25], [31.25, -17.5], [31.03, -18.03], [30.5, -18.25], [30.25, -18.15], [30.18, -18.18], [30.03, -18.53], [29.5, -18.75], [28.97, -18.53], [28.75, -18.0], [28.96, -17.5], [28.75, -17.0], [28.97, -16.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.424383747121624}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.980777041626073}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.18917881393611, 21.90322552102441, 22.118291555512826, 22.167993051265, 22.158379360631898, 21.971463881829834]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.82802765068334, 23.73326332365258, 24.69593636415044, 24.65781083759458, 24.50000683797856, 24.06416721999159]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.5938351426915176, 2.8933462705489337, 3.177797306904768, 3.234787926249045, 2.413700665653225, 2.1715536499072434]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.6045591011198894, 3.8013820177718003, 4.424383747121624, 3.63134677243346, 2.733278121348519, 2.476811605115472]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4233047874460913, 1.635188881720779, 1.764241366643155, 1.8749353030852138, 1.6129423184996659, 1.5150932587404544]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4416271657734183, 1.9491953990324518, 2.2746453601458554, 2.4373302563637838, 1.8078105249346952, 1.7202839192598482]}}