{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:21:49.501416", "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-Oct-13_to_2020-Oct-18_347.5_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": 2020100001768}, "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": "October 13 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 18 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": 243552.07251955586}, "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": ["Mali", "Mauritania"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": 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": 347.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "347.5\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": 359.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 20.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-10-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.25, 19.5], [-11.03, 20.03], [-10.5, 20.25], [-10.25, 20.15], [-10.18, 20.18], [-10.03, 20.53], [-9.5, 20.75], [-8.97, 20.53], [-8.82, 20.18], [-8.7, 20.12], [-8.65, 20.25], [-8.75, 20.5], [-8.53, 21.03], [-8.0, 21.25], [-7.47, 21.03], [-7.25, 20.5], [-7.35, 20.25], [-7.25, 20.0], [-7.35, 19.75], [-7.32, 19.68], [-6.97, 19.53], [-6.82, 19.18], [-6.75, 19.15], [-6.5, 19.25], [-6.25, 19.15], [-6.0, 19.25], [-5.75, 19.15], [-5.5, 19.25], [-5.25, 19.15], [-5.0, 19.25], [-4.75, 19.15], [-4.5, 19.25], [-4.25, 19.15], [-4.0, 19.25], [-3.75, 19.15], [-3.68, 19.18], [-3.53, 19.53], [-3.0, 19.75], [-2.75, 19.65], [-2.5, 19.75], [-2.25, 19.65], [-2.0, 19.75], [-1.75, 19.65], [-1.68, 19.68], [-1.53, 20.03], [-1.0, 20.25], [-0.47, 20.03], [-0.25, 19.5], [-0.46, 19.0], [-0.32, 18.68], [0.03, 18.53], [0.25, 18.0], [0.03, 17.47], [-0.5, 17.25], [-0.75, 17.35], [-0.82, 17.32], [-0.97, 16.97], [-1.5, 16.75], [-2.03, 16.97], [-2.2, 17.38], [-2.5, 17.25], [-2.75, 17.35], [-3.0, 17.25], [-3.25, 17.35], [-3.32, 17.32], [-3.47, 16.97], [-4.0, 16.75], [-4.25, 16.85], [-4.5, 16.75], [-5.03, 16.97], [-5.18, 17.32], [-5.25, 17.35], [-5.5, 17.25], [-5.75, 17.35], [-6.0, 17.25], [-6.25, 17.35], [-6.5, 17.25], [-6.75, 17.35], [-6.82, 17.32], [-6.97, 16.97], [-7.5, 16.75], [-7.75, 16.85], [-8.0, 16.75], [-8.25, 16.85], [-8.5, 16.75], [-8.75, 16.85], [-9.0, 16.75], [-9.25, 16.85], [-9.5, 16.75], [-10.03, 16.97], [-10.18, 17.32], [-10.53, 17.47], [-10.75, 18.0], [-10.65, 18.25], [-10.75, 18.5], [-10.65, 18.75], [-10.68, 18.82], [-11.03, 18.97], [-11.25, 19.5]]]]}, "2020-10-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.75, 18.0], [-11.53, 18.53], [-11.18, 18.68], [-11.12, 18.8], [-11.53, 18.97], [-11.75, 19.5], [-11.53, 20.03], [-11.0, 20.25], [-10.75, 20.15], [-10.5, 20.25], [-10.25, 20.15], [-10.18, 20.18], [-10.03, 20.53], [-9.5, 20.75], [-8.97, 20.53], [-8.82, 20.18], [-8.7, 20.12], [-8.65, 20.25], [-8.75, 20.5], [-8.53, 21.03], [-8.0, 21.25], [-7.47, 21.03], [-7.25, 20.5], [-7.35, 20.25], [-7.25, 20.0], [-7.35, 19.75], [-7.32, 19.68], [-6.97, 19.53], [-6.82, 19.18], [-6.75, 19.15], [-6.5, 19.25], [-6.25, 19.15], [-6.0, 19.25], [-5.75, 19.15], [-5.5, 19.25], [-5.25, 19.15], [-5.0, 19.25], [-4.75, 19.15], [-4.5, 19.25], [-4.25, 19.15], [-4.0, 19.25], [-3.75, 19.15], [-3.68, 19.18], [-3.53, 19.53], [-3.0, 19.75], [-2.75, 19.65], [-2.5, 19.75], [-2.25, 19.65], [-2.0, 19.75], [-1.75, 19.65], [-1.68, 19.68], [-1.53, 20.03], [-1.0, 20.25], [-0.47, 20.03], [-0.25, 19.5], [-0.46, 19.0], [-0.32, 18.68], [0.03, 18.53], [0.25, 18.0], [0.03, 17.47], [-0.5, 17.25], [-0.75, 17.35], [-0.82, 17.32], [-0.97, 16.97], [-1.5, 16.75], [-2.03, 16.97], [-2.2, 17.38], [-2.5, 17.25], [-2.75, 17.35], [-3.0, 17.25], [-3.25, 17.35], [-3.32, 17.32], [-3.47, 16.97], [-4.0, 16.75], [-4.25, 16.85], [-4.5, 16.75], [-5.03, 16.97], [-5.18, 17.32], [-5.25, 17.35], [-5.5, 17.25], [-5.75, 17.35], [-6.0, 17.25], [-6.25, 17.35], [-6.32, 17.32], [-6.35, 17.25], [-6.25, 17.0], [-6.47, 16.47], [-7.0, 16.25], [-7.53, 16.47], [-7.68, 16.82], [-7.75, 16.85], [-8.0, 16.75], [-8.25, 16.85], [-8.32, 16.82], [-8.47, 16.47], [-9.0, 16.25], [-9.25, 16.35], [-9.32, 16.32], [-9.47, 15.97], [-10.0, 15.75], [-10.53, 15.97], [-10.68, 16.32], [-11.03, 16.47], [-11.25, 17.0], [-11.15, 17.25], [-11.18, 17.32], [-11.53, 17.47], [-11.75, 18.0]]]]}, "2020-10-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.25, 18.5], [-13.03, 19.03], [-12.5, 19.25], [-12.25, 19.15], [-12.0, 19.25], [-11.75, 19.15], [-11.62, 19.2], [-11.75, 19.5], [-11.53, 20.03], [-11.0, 20.25], [-10.75, 20.15], [-10.5, 20.25], [-10.25, 20.15], [-10.18, 20.18], [-10.03, 20.53], [-9.5, 20.75], [-8.97, 20.53], [-8.82, 20.18], [-8.7, 20.12], [-8.65, 20.25], [-8.75, 20.5], [-8.53, 21.03], [-8.0, 21.25], [-7.47, 21.03], [-7.25, 20.5], [-7.35, 20.25], [-7.25, 20.0], [-7.35, 19.75], [-7.32, 19.68], [-6.97, 19.53], [-6.82, 19.18], [-6.75, 19.15], [-6.5, 19.25], [-6.25, 19.15], [-6.0, 19.25], [-5.75, 19.15], [-5.5, 19.25], [-5.25, 19.15], [-5.0, 19.25], [-4.75, 19.15], [-4.5, 19.25], [-4.25, 19.15], [-4.0, 19.25], [-3.75, 19.15], [-3.68, 19.18], [-3.53, 19.53], [-3.0, 19.75], [-2.75, 19.65], [-2.5, 19.75], [-2.25, 19.65], [-2.0, 19.75], [-1.75, 19.65], [-1.68, 19.68], [-1.53, 20.03], [-1.0, 20.25], [-0.47, 20.03], [-0.25, 19.5], [-0.46, 19.0], [-0.32, 18.68], [0.03, 18.53], [0.25, 18.0], [0.03, 17.47], [-0.5, 17.25], [-0.75, 17.35], [-0.82, 17.32], [-0.97, 16.97], [-1.5, 16.75], [-2.03, 16.97], [-2.2, 17.38], [-2.5, 17.25], [-2.75, 17.35], [-3.0, 17.25], [-3.25, 17.35], [-3.32, 17.32], [-3.47, 16.97], [-4.0, 16.75], [-4.25, 16.85], [-4.5, 16.75], [-5.03, 16.97], [-5.18, 17.32], [-5.25, 17.35], [-5.5, 17.25], [-5.75, 17.35], [-6.0, 17.25], [-6.25, 17.35], [-6.32, 17.32], [-6.35, 17.25], [-6.25, 17.0], [-6.47, 16.47], [-7.0, 16.25], [-7.5, 16.46], [-8.0, 16.25], [-8.5, 16.46], [-9.0, 16.25], [-9.25, 16.35], [-9.32, 16.32], [-9.47, 15.97], [-10.0, 15.75], [-10.53, 15.97], [-10.68, 16.32], [-11.03, 16.47], [-11.25, 17.0], [-11.15, 17.25], [-11.18, 17.32], [-11.5, 17.46], [-12.0, 17.25], [-12.53, 17.47], [-12.68, 17.82], [-13.03, 17.97], [-13.25, 18.5]]]]}, "2020-10-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.25, 18.5], [-13.03, 19.03], [-12.5, 19.25], [-12.25, 19.15], [-12.0, 19.25], [-11.75, 19.15], [-11.62, 19.2], [-11.75, 19.5], [-11.53, 20.03], [-11.0, 20.25], [-10.75, 20.15], [-10.5, 20.25], [-10.25, 20.15], [-10.0, 20.25], [-9.75, 20.15], [-9.5, 20.25], [-9.25, 20.15], [-9.0, 20.25], [-8.7, 20.12], [-8.53, 20.53], [-8.0, 20.75], [-7.47, 20.53], [-7.25, 20.0], [-7.47, 19.47], [-8.0, 19.25], [-7.75, 19.15], [-7.5, 19.25], [-7.25, 19.15], [-7.0, 19.25], [-6.75, 19.15], [-6.5, 19.25], [-6.25, 19.15], [-6.0, 19.25], [-5.75, 19.15], [-5.5, 19.25], [-5.25, 19.15], [-5.0, 19.25], [-4.75, 19.15], [-4.5, 19.25], [-3.97, 19.03], [-3.75, 18.5], [-3.85, 18.25], [-3.75, 18.0], [-3.85, 17.75], [-3.75, 17.5], [-3.97, 16.97], [-4.5, 16.75], [-5.03, 16.97], [-5.18, 17.32], [-5.25, 17.35], [-5.5, 17.25], [-5.75, 17.35], [-6.0, 17.25], [-6.25, 17.35], [-6.32, 17.32], [-6.35, 17.25], [-6.25, 17.0], [-6.47, 16.47], [-7.0, 16.25], [-7.5, 16.46], [-8.0, 16.25], [-8.5, 16.46], [-9.0, 16.25], [-9.25, 16.35], [-9.32, 16.32], [-9.47, 15.97], [-10.0, 15.75], [-10.53, 15.97], [-10.68, 16.32], [-11.03, 16.47], [-11.25, 17.0], [-11.15, 17.25], [-11.18, 17.32], [-11.5, 17.46], [-12.0, 17.25], [-12.53, 17.47], [-12.68, 17.82], [-13.03, 17.97], [-13.25, 18.5]], [[-8.3, 19.38], [-8.35, 19.25], [-8.32, 19.18], [-8.25, 19.15], [-8.0, 19.25], [-8.3, 19.38]]]]}, "2020-10-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.53, 16.47], [-8.75, 17.0], [-8.53, 17.53], [-8.0, 17.75], [-7.47, 17.53], [-7.25, 17.0], [-7.47, 16.47], [-8.0, 16.25], [-8.53, 16.47]]], [[[-13.03, 19.03], [-12.5, 19.25], [-12.25, 19.15], [-12.0, 19.25], [-11.75, 19.15], [-11.5, 19.25], [-10.97, 19.03], [-10.75, 18.5], [-10.97, 17.97], [-11.32, 17.82], [-11.47, 17.47], [-12.0, 17.25], [-12.53, 17.47], [-12.68, 17.82], [-13.03, 17.97], [-13.25, 18.5], [-13.03, 19.03]]]]}, "2020-10-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.03, 17.97], [-13.25, 18.5], [-13.03, 19.03], [-12.5, 19.25], [-12.25, 19.15], [-12.0, 19.25], [-11.47, 19.03], [-11.25, 18.5], [-11.47, 17.97], [-12.0, 17.75], [-12.25, 17.85], [-12.5, 17.75], [-13.03, 17.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.412233004871439}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.4579965437835796}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.6887762149546, 32.697496138401334, 32.786462619499446, 32.53231506278655, 33.60299881359464, 33.745369366691534]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.94478323723723, 34.631637226320265, 34.83422097053062, 34.68862290970242, 34.245993277971024, 33.88109759360913]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.462842397144925, 2.4085771241796388, 2.535348289230154, 2.4404477428965623, 2.1757230328407333, 2.214816440254026]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.412233004871439, 2.75367894727907, 3.034975699057327, 2.8937527283956115, 2.282916201959381, 2.285035337017689]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3533743118402302, 1.325318017262634, 1.4049674978744893, 1.316620848691289, 1.2105341331840602, 1.2399421902794383]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6797907163062402, 1.6513773630835662, 1.6127008829656098, 1.708150478230637, 1.3205156704008416, 1.315984221978397]}}