{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:53.477798", "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": "2016-Dec-08_to_2016-Dec-11_10.5_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": 2016120001577}, "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": "December 08 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 11 2016"}, "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": 73191.71724323476}, "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": ["Niger"]}, "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": 10.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "10.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 9.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 13.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 20.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-12-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.32, 19.68], [10.47, 20.03], [11.0, 20.25], [11.25, 20.15], [11.5, 20.25], [11.75, 20.15], [11.82, 20.18], [11.97, 20.53], [12.5, 20.75], [13.03, 20.53], [13.18, 20.18], [13.53, 20.03], [13.75, 19.5], [13.65, 19.25], [13.75, 19.0], [13.54, 18.5], [13.75, 18.0], [13.53, 17.47], [13.18, 17.32], [13.03, 16.97], [12.68, 16.82], [12.53, 16.47], [12.0, 16.25], [11.47, 16.47], [11.25, 17.0], [11.35, 17.25], [11.3, 17.38], [11.0, 17.25], [10.47, 17.47], [10.32, 17.82], [10.25, 17.85], [10.0, 17.75], [9.47, 17.97], [9.25, 18.5], [9.47, 19.03], [9.82, 19.18], [9.97, 19.53], [10.32, 19.68]]]]}, "2016-12-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[9.47, 19.53], [10.0, 19.75], [10.25, 19.65], [10.32, 19.68], [10.47, 20.03], [11.0, 20.25], [11.25, 20.15], [11.5, 20.25], [11.75, 20.15], [11.82, 20.18], [11.97, 20.53], [12.5, 20.75], [13.03, 20.53], [13.18, 20.18], [13.53, 20.03], [13.75, 19.5], [13.65, 19.25], [13.75, 19.0], [13.54, 18.5], [13.75, 18.0], [13.53, 17.47], [13.18, 17.32], [13.03, 16.97], [12.68, 16.82], [12.53, 16.47], [12.0, 16.25], [11.47, 16.47], [11.25, 17.0], [11.35, 17.25], [11.3, 17.38], [11.0, 17.25], [10.47, 17.47], [10.32, 17.82], [10.25, 17.85], [10.0, 17.75], [9.47, 17.97], [9.25, 18.5], [9.35, 18.75], [9.25, 19.0], [9.47, 19.53]]]]}, "2016-12-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[9.47, 19.53], [10.0, 19.75], [10.25, 19.65], [10.32, 19.68], [10.47, 20.03], [11.0, 20.25], [11.25, 20.15], [11.5, 20.25], [11.75, 20.15], [11.82, 20.18], [11.97, 20.53], [12.5, 20.75], [13.03, 20.53], [13.18, 20.18], [13.53, 20.03], [13.75, 19.5], [13.65, 19.25], [13.75, 19.0], [13.54, 18.5], [13.75, 18.0], [13.53, 17.47], [13.18, 17.32], [13.03, 16.97], [12.68, 16.82], [12.53, 16.47], [12.0, 16.25], [11.47, 16.47], [11.25, 17.0], [11.35, 17.25], [11.3, 17.38], [11.0, 17.25], [10.47, 17.47], [10.32, 17.82], [10.25, 17.85], [10.0, 17.75], [9.47, 17.97], [9.25, 18.5], [9.35, 18.75], [9.25, 19.0], [9.47, 19.53]]]]}, "2016-12-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[9.47, 19.53], [10.0, 19.75], [10.25, 19.65], [10.5, 19.75], [11.0, 19.54], [11.5, 19.75], [11.75, 19.65], [12.0, 19.75], [12.25, 19.65], [12.5, 19.75], [13.03, 19.53], [13.25, 19.0], [13.03, 18.47], [12.68, 18.32], [12.53, 17.97], [12.0, 17.75], [11.75, 17.85], [11.5, 17.75], [11.0, 17.96], [10.5, 17.75], [10.25, 17.85], [10.0, 17.75], [9.47, 17.97], [9.25, 18.5], [9.35, 18.75], [9.25, 19.0], [9.47, 19.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.9423621074166135}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.90939326486945}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.078636090657596, 22.61789876736725, 21.82287536392448, 21.808062440368133]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.6012975506506, 23.36143441735726, 22.662127361944044, 22.3789959146942]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.594660342876374, 5.340414343852131, 4.712145126085834, 5.099311778520246]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.505179965143782, 5.9423621074166135, 5.541642515277033, 5.7731934454761245]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7175912955666375, 1.9711168857337196, 1.6922710778007672, 1.7221830487260017]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9409315291689309, 2.1801734367095675, 1.8673519887766472, 1.9235465119246338]}}