{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:48.107215", "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-May-19_to_2019-May-24_349.5_11.5"}, "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": 2019050002289}, "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": "May 19 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 24 2019"}, "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": 87764.27948815029}, "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": ["Guinea", "Mali", "Senegal"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Western-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": 11.5}, "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": 349.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "349.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 347.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 351.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 10.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 13.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-05-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.53, 12.53], [-11.0, 12.75], [-10.47, 12.53], [-10.32, 12.18], [-9.97, 12.03], [-9.75, 11.5], [-9.97, 10.97], [-10.5, 10.75], [-11.03, 10.97], [-11.18, 11.32], [-11.53, 11.47], [-11.75, 12.0], [-11.53, 12.53]]], [[[-9.03, 12.47], [-9.25, 13.0], [-9.03, 13.53], [-8.5, 13.75], [-7.97, 13.53], [-7.75, 13.0], [-7.97, 12.47], [-8.5, 12.25], [-9.03, 12.47]]]]}, "2019-05-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.75, 12.5], [-12.53, 13.03], [-12.0, 13.25], [-11.5, 13.04], [-11.0, 13.25], [-10.75, 13.15], [-10.68, 13.18], [-10.53, 13.53], [-10.0, 13.75], [-9.47, 13.53], [-9.32, 13.18], [-9.25, 13.15], [-9.18, 13.18], [-9.03, 13.53], [-8.5, 13.75], [-7.97, 13.53], [-7.75, 13.0], [-7.97, 12.47], [-8.32, 12.32], [-8.47, 11.97], [-8.82, 11.82], [-8.97, 11.47], [-9.5, 11.25], [-9.75, 11.35], [-9.82, 11.32], [-9.85, 11.25], [-9.75, 11.0], [-9.97, 10.47], [-10.5, 10.25], [-11.03, 10.47], [-11.18, 10.82], [-11.53, 10.97], [-11.68, 11.32], [-12.03, 11.47], [-12.18, 11.82], [-12.53, 11.97], [-12.75, 12.5]]]]}, "2019-05-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.03, 12.53], [-12.68, 12.68], [-12.53, 13.03], [-12.0, 13.25], [-11.5, 13.04], [-11.0, 13.25], [-10.75, 13.15], [-10.68, 13.18], [-10.53, 13.53], [-10.0, 13.75], [-9.47, 13.53], [-9.32, 13.18], [-9.25, 13.15], [-9.18, 13.18], [-9.03, 13.53], [-8.5, 13.75], [-7.97, 13.53], [-7.75, 13.0], [-7.97, 12.47], [-8.32, 12.32], [-8.47, 11.97], [-8.82, 11.82], [-8.85, 11.75], [-8.75, 11.5], [-8.97, 10.97], [-9.32, 10.82], [-9.47, 10.47], [-9.82, 10.32], [-9.97, 9.97], [-10.5, 9.75], [-10.75, 9.85], [-11.0, 9.75], [-11.25, 9.85], [-11.5, 9.75], [-12.03, 9.97], [-12.18, 10.32], [-12.53, 10.47], [-12.68, 10.82], [-13.03, 10.97], [-13.25, 11.5], [-13.15, 11.75], [-13.25, 12.0], [-13.03, 12.53]]]]}, "2019-05-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.03, 12.53], [-12.68, 12.68], [-12.53, 13.03], [-12.0, 13.25], [-11.5, 13.04], [-11.0, 13.25], [-10.75, 13.15], [-10.68, 13.18], [-10.53, 13.53], [-10.0, 13.75], [-9.47, 13.53], [-9.32, 13.18], [-9.25, 13.15], [-9.0, 13.25], [-8.47, 13.03], [-8.25, 12.5], [-8.47, 11.97], [-8.82, 11.82], [-8.85, 11.75], [-8.75, 11.5], [-8.97, 10.97], [-9.32, 10.82], [-9.47, 10.47], [-9.82, 10.32], [-9.97, 9.97], [-10.5, 9.75], [-10.75, 9.85], [-11.0, 9.75], [-11.25, 9.85], [-11.5, 9.75], [-12.03, 9.97], [-12.18, 10.32], [-12.53, 10.47], [-12.68, 10.82], [-13.03, 10.97], [-13.25, 11.5], [-13.15, 11.75], [-13.25, 12.0], [-13.03, 12.53]]]]}, "2019-05-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.03, 12.53], [-12.68, 12.68], [-12.53, 13.03], [-12.0, 13.25], [-11.5, 13.04], [-11.0, 13.25], [-10.75, 13.15], [-10.68, 13.18], [-10.53, 13.53], [-10.0, 13.75], [-9.47, 13.53], [-9.32, 13.18], [-9.25, 13.15], [-9.0, 13.25], [-8.47, 13.03], [-8.25, 12.5], [-8.47, 11.97], [-8.82, 11.82], [-8.85, 11.75], [-8.75, 11.5], [-8.97, 10.97], [-9.32, 10.82], [-9.47, 10.47], [-9.82, 10.32], [-9.97, 9.97], [-10.5, 9.75], [-10.75, 9.85], [-11.0, 9.75], [-11.25, 9.85], [-11.5, 9.75], [-12.03, 9.97], [-12.18, 10.32], [-12.53, 10.47], [-12.68, 10.82], [-13.03, 10.97], [-13.25, 11.5], [-13.15, 11.75], [-13.25, 12.0], [-13.03, 12.53]]]]}, "2019-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.03, 12.53], [-12.5, 12.75], [-11.97, 12.53], [-11.75, 12.0], [-11.85, 11.75], [-11.75, 11.5], [-11.97, 10.97], [-12.5, 10.75], [-13.03, 10.97], [-13.25, 11.5], [-13.15, 11.75], [-13.25, 12.0], [-13.03, 12.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.548289738003291}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.5161272073851872}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.89719403304679, 33.144619995921744, 31.81653127808653, 31.511604003874822, 31.91835638747989, 28.519353458932244]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [34.49863784255524, 35.326192938631436, 35.759851933868845, 35.24277200915833, 36.08030840321641, 29.066864170172323]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.1007317537356394, 2.1725223803299443, 2.513062738587331, 2.4159540419129906, 2.8967588339007313, 2.0060753472635042]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.2590936526518135, 2.51802256368984, 3.3083093275943156, 3.0347962882984802, 3.548289738003291, 2.0166092954796113]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.296143923919373, 1.3005836535855604, 1.5668403553585508, 1.5788461726355074, 1.8526180405414632, 1.3999155747360532]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3895971805327756, 1.491410807728165, 1.8620033187848182, 2.2416279255516636, 2.4475737332932375, 1.422253683909661]}}