{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:38.657624", "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": "2019-Apr-28_to_2019-May-01_44.0_-18.5"}, "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": 2019040002781}, "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 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 01 2019"}, "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": 67296.58436886352}, "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": ["Madagascar"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa", "Madagascar"]}, "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": ["Mozambique Channel"]}, "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": -18.5}, "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": 44.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "44.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 40.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 44.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -19.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -17.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.25, -17.5], [42.47, -16.97], [43.0, -16.75], [43.53, -16.97], [43.68, -17.32], [44.03, -17.47], [44.18, -17.82], [44.53, -17.97], [44.75, -18.5], [44.65, -18.75], [44.68, -18.82], [45.03, -18.97], [45.25, -19.5], [45.03, -20.03], [44.5, -20.25], [44.25, -20.15], [44.0, -20.25], [43.47, -20.03], [43.25, -19.5], [43.35, -19.25], [43.32, -19.18], [42.97, -19.03], [42.75, -18.5], [42.85, -18.25], [42.82, -18.18], [42.47, -18.03], [42.25, -17.5]]]]}, "2019-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.75, -18.5], [39.97, -17.97], [40.5, -17.75], [40.75, -17.85], [41.0, -17.75], [41.25, -17.85], [41.32, -17.82], [41.47, -17.47], [42.0, -17.25], [42.25, -17.35], [42.32, -17.32], [42.47, -16.97], [43.0, -16.75], [43.53, -16.97], [43.68, -17.32], [44.03, -17.47], [44.18, -17.82], [44.53, -17.97], [44.75, -18.5], [44.65, -18.75], [44.68, -18.82], [45.03, -18.97], [45.25, -19.5], [45.03, -20.03], [44.5, -20.25], [44.25, -20.15], [44.0, -20.25], [43.5, -20.04], [43.0, -20.25], [42.75, -20.15], [42.5, -20.25], [42.25, -20.15], [42.0, -20.25], [41.75, -20.15], [41.5, -20.25], [41.25, -20.15], [41.0, -20.25], [40.47, -20.03], [40.25, -19.5], [40.35, -19.25], [40.32, -19.18], [39.97, -19.03], [39.75, -18.5]]]]}, "2019-04-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.75, -18.5], [39.97, -17.97], [40.5, -17.75], [40.75, -17.85], [41.0, -17.75], [41.25, -17.85], [41.32, -17.82], [41.47, -17.47], [42.0, -17.25], [42.25, -17.35], [42.32, -17.32], [42.47, -16.97], [43.0, -16.75], [43.53, -16.97], [43.68, -17.32], [44.03, -17.47], [44.18, -17.82], [44.53, -17.97], [44.75, -18.5], [44.65, -18.75], [44.68, -18.82], [45.03, -18.97], [45.25, -19.5], [45.03, -20.03], [44.5, -20.25], [44.25, -20.15], [44.0, -20.25], [43.5, -20.04], [43.0, -20.25], [42.75, -20.15], [42.5, -20.25], [42.25, -20.15], [42.0, -20.25], [41.75, -20.15], [41.5, -20.25], [41.25, -20.15], [41.0, -20.25], [40.47, -20.03], [40.25, -19.5], [40.35, -19.25], [40.32, -19.18], [39.97, -19.03], [39.75, -18.5]]]]}, "2019-05-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.75, -18.5], [39.97, -17.97], [40.5, -17.75], [40.75, -17.85], [41.0, -17.75], [41.25, -17.85], [41.32, -17.82], [41.47, -17.47], [42.0, -17.25], [42.25, -17.35], [42.5, -17.25], [43.03, -17.47], [43.25, -18.0], [43.15, -18.25], [43.25, -18.5], [43.47, -17.97], [44.0, -17.75], [44.53, -17.97], [44.75, -18.5], [44.53, -19.03], [44.0, -19.25], [43.57, -19.07], [43.75, -19.5], [43.53, -20.03], [43.0, -20.25], [42.75, -20.15], [42.5, -20.25], [42.25, -20.15], [42.0, -20.25], [41.75, -20.15], [41.5, -20.25], [41.25, -20.15], [41.0, -20.25], [40.47, -20.03], [40.25, -19.5], [40.35, -19.25], [40.32, -19.18], [39.97, -19.03], [39.75, -18.5]], [[43.15, -18.75], [43.18, -18.82], [43.43, -18.93], [43.25, -18.5], [43.15, -18.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.6397264535320346}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.1409248084217356}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.939159437972364, 27.878293881286822, 27.698527603252103, 27.414661013156547]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.021257928792807, 28.46508204199307, 28.012681617426665, 27.707378925559055]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.0047345450942575, 1.2498558277805625, 1.1529878196601049, 1.0333053460427262]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.2498801799599164, 1.6397264535320346, 1.544591464518362, 1.3223668556184407]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3377337865955359, 1.7781154327598139, 1.6585525715531668, 1.5384636632183704]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5275928484273946, 2.173251139454795, 2.0625519637846947, 2.001184734492536]}}