{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:21:30.989512", "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-Sep-13_to_2020-Sep-16_20.5_28.0"}, "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": 2020090001703}, "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": "September 13 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 16 2020"}, "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": 106363.8521178161}, "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": ["Libya"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean", "Sahara"]}, "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": 28.0}, "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": 20.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "20.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 18.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 22.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 30.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-09-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.47, 29.53], [19.0, 29.75], [19.25, 29.65], [19.5, 29.75], [20.03, 29.53], [20.18, 29.18], [20.53, 29.03], [20.68, 28.68], [21.03, 28.53], [21.25, 28.0], [21.03, 27.47], [20.5, 27.25], [20.25, 27.35], [20.0, 27.25], [19.47, 27.47], [19.3, 27.88], [19.0, 27.75], [18.47, 27.97], [18.25, 28.5], [18.35, 28.75], [18.25, 29.0], [18.47, 29.53]]]]}, "2020-09-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.35, 25.75], [18.25, 26.0], [18.35, 26.25], [18.25, 26.5], [18.47, 27.03], [18.82, 27.18], [18.97, 27.53], [19.32, 27.68], [19.35, 27.75], [19.3, 27.88], [19.0, 27.75], [18.47, 27.97], [18.25, 28.5], [18.35, 28.75], [18.25, 29.0], [18.47, 29.53], [19.0, 29.75], [19.25, 29.65], [19.5, 29.75], [19.8, 29.63], [19.97, 30.03], [20.32, 30.18], [20.35, 30.25], [20.25, 30.5], [20.47, 31.03], [21.0, 31.25], [21.53, 31.03], [21.68, 30.68], [22.03, 30.53], [22.18, 30.18], [22.53, 30.03], [22.75, 29.5], [22.65, 29.25], [22.75, 29.0], [22.65, 28.75], [22.75, 28.5], [22.65, 28.25], [22.75, 28.0], [22.53, 27.47], [22.18, 27.32], [22.03, 26.97], [21.68, 26.82], [21.53, 26.47], [21.18, 26.32], [21.03, 25.97], [20.5, 25.75], [20.25, 25.85], [20.0, 25.75], [19.75, 25.85], [19.68, 25.82], [19.65, 25.75], [19.75, 25.5], [19.65, 25.25], [19.75, 25.0], [19.53, 24.47], [19.0, 24.25], [18.47, 24.47], [18.25, 25.0], [18.35, 25.25], [18.25, 25.5], [18.35, 25.75]]]]}, "2020-09-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.35, 25.75], [18.25, 26.0], [18.35, 26.25], [18.25, 26.5], [18.47, 27.03], [18.82, 27.18], [18.97, 27.53], [19.32, 27.68], [19.35, 27.75], [19.3, 27.88], [19.0, 27.75], [18.47, 27.97], [18.25, 28.5], [18.35, 28.75], [18.25, 29.0], [18.47, 29.53], [19.0, 29.75], [19.25, 29.65], [19.5, 29.75], [19.8, 29.63], [19.97, 30.03], [20.32, 30.18], [20.35, 30.25], [20.25, 30.5], [20.47, 31.03], [21.0, 31.25], [21.53, 31.03], [21.68, 30.68], [22.03, 30.53], [22.18, 30.18], [22.53, 30.03], [22.75, 29.5], [22.65, 29.25], [22.75, 29.0], [22.65, 28.75], [22.75, 28.5], [22.65, 28.25], [22.75, 28.0], [22.53, 27.47], [22.18, 27.32], [22.03, 26.97], [21.68, 26.82], [21.53, 26.47], [21.18, 26.32], [21.03, 25.97], [20.5, 25.75], [20.25, 25.85], [20.0, 25.75], [19.75, 25.85], [19.68, 25.82], [19.65, 25.75], [19.75, 25.5], [19.65, 25.25], [19.75, 25.0], [19.53, 24.47], [19.0, 24.25], [18.47, 24.47], [18.25, 25.0], [18.35, 25.25], [18.25, 25.5], [18.35, 25.75]]]]}, "2020-09-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.35, 25.75], [18.25, 26.0], [18.35, 26.25], [18.25, 26.5], [18.47, 27.03], [18.82, 27.18], [18.97, 27.53], [19.32, 27.68], [19.35, 27.75], [19.25, 28.0], [19.35, 28.25], [19.25, 28.5], [19.47, 29.03], [19.82, 29.18], [19.85, 29.25], [19.75, 29.5], [19.97, 30.03], [20.32, 30.18], [20.35, 30.25], [20.25, 30.5], [20.47, 31.03], [21.0, 31.25], [21.53, 31.03], [21.68, 30.68], [22.03, 30.53], [22.18, 30.18], [22.53, 30.03], [22.75, 29.5], [22.65, 29.25], [22.75, 29.0], [22.65, 28.75], [22.75, 28.5], [22.65, 28.25], [22.75, 28.0], [22.53, 27.47], [22.18, 27.32], [22.03, 26.97], [21.68, 26.82], [21.53, 26.47], [21.18, 26.32], [21.03, 25.97], [20.5, 25.75], [20.25, 25.85], [20.0, 25.75], [19.75, 25.85], [19.68, 25.82], [19.65, 25.75], [19.75, 25.5], [19.65, 25.25], [19.75, 25.0], [19.53, 24.47], [19.0, 24.25], [18.47, 24.47], [18.25, 25.0], [18.35, 25.25], [18.25, 25.5], [18.35, 25.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.2366380278766655}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.034650925749187}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.165820825858134, 32.7400751511517, 32.976696857246054, 32.91387111005179]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.57710164372503, 33.74469698631293, 33.997458882733724, 33.80399174671254]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.8077698900225605, 3.8386475746354844, 4.175585048085595, 4.132122762879026]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.158147931951362, 5.001583988143636, 5.2366380278766655, 4.870568681703389]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5379539917810454, 1.633290192164313, 1.772498049031496, 1.7506685475579564]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.646625583031762, 2.0036769704972532, 2.076465883900111, 2.0954544804541215]}}