{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:28.662319", "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": "2013-Jan-09_to_2013-Jan-11_12.0_-1.0"}, "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": 2013010001556}, "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": "January 09 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 11 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 67987.82556758459}, "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": ["Gabon"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-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": ["South Atlantic Ocean"]}, "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": -1.0}, "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": 12.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "12.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 9.25}, "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": -2.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 0.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-01-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.85, -1.25], [8.75, -1.0], [8.85, -0.75], [8.75, -0.5], [8.85, -0.25], [8.75, 0.0], [8.97, 0.53], [9.5, 0.75], [9.75, 0.65], [10.0, 0.75], [10.25, 0.65], [10.5, 0.75], [11.03, 0.53], [11.18, 0.18], [11.3, 0.13], [11.47, 0.53], [12.0, 0.75], [12.53, 0.53], [12.68, 0.18], [12.75, 0.15], [13.0, 0.25], [13.53, 0.03], [13.75, -0.5], [13.53, -1.03], [13.0, -1.25], [12.75, -1.15], [12.68, -1.18], [12.65, -1.25], [12.75, -1.5], [12.53, -2.03], [12.0, -2.25], [11.7, -2.12], [11.53, -2.53], [11.18, -2.68], [11.03, -3.03], [10.5, -3.25], [9.97, -3.03], [9.82, -2.68], [9.75, -2.65], [9.5, -2.75], [8.97, -2.53], [8.75, -2.0], [8.85, -1.75], [8.75, -1.5], [8.85, -1.25]], [[10.88, -1.3], [10.82, -1.18], [10.75, -1.15], [10.63, -1.2], [10.68, -1.32], [10.75, -1.35], [10.88, -1.3]]]]}, "2013-01-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.85, -1.25], [8.75, -1.0], [8.85, -0.75], [8.75, -0.5], [8.85, -0.25], [8.75, 0.0], [8.97, 0.53], [9.5, 0.75], [9.75, 0.65], [10.0, 0.75], [10.25, 0.65], [10.5, 0.75], [11.03, 0.53], [11.18, 0.18], [11.3, 0.13], [11.47, 0.53], [12.0, 0.75], [12.53, 0.53], [12.68, 0.18], [12.75, 0.15], [13.0, 0.25], [13.53, 0.03], [13.75, -0.5], [13.53, -1.03], [13.0, -1.25], [12.75, -1.15], [12.68, -1.18], [12.65, -1.25], [12.75, -1.5], [12.53, -2.03], [12.0, -2.25], [11.7, -2.12], [11.53, -2.53], [11.18, -2.68], [11.03, -3.03], [10.5, -3.25], [9.97, -3.03], [9.82, -2.68], [9.75, -2.65], [9.5, -2.75], [8.97, -2.53], [8.75, -2.0], [8.85, -1.75], [8.75, -1.5], [8.85, -1.25]], [[10.88, -1.3], [10.82, -1.18], [10.75, -1.15], [10.63, -1.2], [10.68, -1.32], [10.75, -1.35], [10.88, -1.3]]]]}, "2013-01-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.85, -1.25], [8.75, -1.0], [8.85, -0.75], [8.75, -0.5], [8.85, -0.25], [8.75, 0.0], [8.97, 0.53], [9.5, 0.75], [9.75, 0.65], [10.0, 0.75], [10.25, 0.65], [10.5, 0.75], [11.03, 0.53], [11.18, 0.18], [11.3, 0.13], [11.47, 0.53], [12.0, 0.75], [12.53, 0.53], [12.68, 0.18], [12.75, 0.15], [13.0, 0.25], [13.53, 0.03], [13.75, -0.5], [13.53, -1.03], [13.0, -1.25], [12.75, -1.15], [12.68, -1.18], [12.65, -1.25], [12.75, -1.5], [12.53, -2.03], [12.0, -2.25], [11.7, -2.12], [11.53, -2.53], [11.18, -2.68], [11.03, -3.03], [10.5, -3.25], [9.97, -3.03], [9.82, -2.68], [9.75, -2.65], [9.5, -2.75], [8.97, -2.53], [8.75, -2.0], [8.85, -1.75], [8.75, -1.5], [8.85, -1.25]], [[10.88, -1.3], [10.82, -1.18], [10.75, -1.15], [10.63, -1.2], [10.68, -1.32], [10.75, -1.35], [10.88, -1.3]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.9173694845520117}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.2704154277752722}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.589654165555544, 26.755508777958596, 27.009254059432124]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.314646667611214, 27.741853507111784, 28.034596869835696]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.0824358967160441, 1.2481291525671503, 1.4806812340426219]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.2741225167869743, 1.8643004915578558, 1.9173694845520117]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4057943666433275, 1.5274622395213413, 1.7417250110777907]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7059090419695757, 1.9922185416078708, 2.0758703715765927]}}