{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:27.623423", "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-Sep-01_to_2013-Sep-05_355.0_8.5"}, "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": 2013090001503}, "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 01 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 05 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 64297.13899277013}, "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": ["C\u00f4te d'Ivoire", "Ghana"]}, "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": 8.5}, "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": 355.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "355.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 352.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 357.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 6.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 9.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-09-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-7.53, 8.47], [-7.75, 9.0], [-7.53, 9.53], [-7.0, 9.75], [-6.75, 9.65], [-6.5, 9.75], [-5.97, 9.53], [-5.82, 9.18], [-5.75, 9.15], [-5.5, 9.25], [-5.25, 9.15], [-5.0, 9.25], [-4.47, 9.03], [-4.25, 8.5], [-4.47, 7.97], [-5.0, 7.75], [-5.25, 7.85], [-5.5, 7.75], [-5.75, 7.85], [-6.0, 7.75], [-6.53, 7.97], [-6.68, 8.32], [-6.75, 8.35], [-7.0, 8.25], [-7.53, 8.47]]]]}, "2013-09-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-7.53, 8.47], [-7.75, 9.0], [-7.53, 9.53], [-7.0, 9.75], [-6.75, 9.65], [-6.5, 9.75], [-5.97, 9.53], [-5.82, 9.18], [-5.75, 9.15], [-5.5, 9.25], [-5.25, 9.15], [-5.0, 9.25], [-4.5, 9.04], [-4.18, 9.18], [-4.03, 9.53], [-3.5, 9.75], [-2.97, 9.53], [-2.75, 9.0], [-2.85, 8.75], [-2.82, 8.68], [-2.47, 8.53], [-2.25, 8.0], [-2.47, 7.47], [-3.0, 7.25], [-3.5, 7.46], [-3.82, 7.32], [-3.97, 6.97], [-4.5, 6.75], [-5.0, 6.96], [-5.5, 6.75], [-6.03, 6.97], [-6.25, 7.5], [-6.12, 7.8], [-6.53, 7.97], [-6.68, 8.32], [-6.75, 8.35], [-7.0, 8.25], [-7.53, 8.47]]]]}, "2013-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-7.53, 8.47], [-7.75, 9.0], [-7.53, 9.53], [-7.0, 9.75], [-6.75, 9.65], [-6.5, 9.75], [-5.97, 9.53], [-5.82, 9.18], [-5.75, 9.15], [-5.5, 9.25], [-5.25, 9.15], [-5.0, 9.25], [-4.5, 9.04], [-4.18, 9.18], [-4.03, 9.53], [-3.5, 9.75], [-2.97, 9.53], [-2.75, 9.0], [-2.85, 8.75], [-2.82, 8.68], [-2.47, 8.53], [-2.25, 8.0], [-2.46, 7.5], [-2.25, 7.0], [-2.35, 6.75], [-2.25, 6.5], [-2.47, 5.97], [-3.0, 5.75], [-3.53, 5.97], [-3.68, 6.32], [-3.75, 6.35], [-3.82, 6.32], [-3.97, 5.97], [-4.5, 5.75], [-5.03, 5.97], [-5.25, 6.5], [-5.15, 6.75], [-5.2, 6.88], [-5.5, 6.75], [-6.03, 6.97], [-6.25, 7.5], [-6.12, 7.8], [-6.53, 7.97], [-6.68, 8.32], [-6.75, 8.35], [-7.0, 8.25], [-7.53, 8.47]]]]}, "2013-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-5.75, 8.5], [-5.53, 9.03], [-5.0, 9.25], [-4.5, 9.04], [-4.18, 9.18], [-4.03, 9.53], [-3.5, 9.75], [-2.97, 9.53], [-2.75, 9.0], [-2.85, 8.75], [-2.82, 8.68], [-2.47, 8.53], [-2.25, 8.0], [-2.46, 7.5], [-2.25, 7.0], [-2.35, 6.75], [-2.25, 6.5], [-2.47, 5.97], [-3.0, 5.75], [-3.53, 5.97], [-3.68, 6.32], [-3.75, 6.35], [-3.82, 6.32], [-3.97, 5.97], [-4.5, 5.75], [-5.03, 5.97], [-5.25, 6.5], [-5.15, 6.75], [-5.2, 6.88], [-5.5, 6.75], [-6.03, 6.97], [-6.25, 7.5], [-6.03, 8.03], [-5.68, 8.18], [-5.65, 8.25], [-5.75, 8.5]]]]}, "2013-09-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-5.03, 7.53], [-4.5, 7.75], [-4.25, 7.65], [-4.18, 7.68], [-4.03, 8.03], [-3.5, 8.25], [-2.97, 8.03], [-2.82, 7.68], [-2.47, 7.53], [-2.25, 7.0], [-2.35, 6.75], [-2.25, 6.5], [-2.47, 5.97], [-3.0, 5.75], [-3.53, 5.97], [-3.68, 6.32], [-3.75, 6.35], [-3.82, 6.32], [-3.97, 5.97], [-4.5, 5.75], [-5.03, 5.97], [-5.25, 6.5], [-5.15, 6.75], [-5.25, 7.0], [-5.03, 7.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.796932966491056}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.2233710511872724}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.046726595596283, 26.266586506509384, 26.534343028624903, 26.458098611291064, 26.469114570956435]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.2231565903067, 26.997261134661358, 27.293157389497253, 27.194317274844764, 26.786241000379448]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.1683858241603275, 1.15984333870998, 1.3280218847334542, 1.1984641840959298, 1.1362372434586763]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.215477724427842, 1.5390667602878239, 1.796932966491056, 1.6251600166166327, 1.2923186176118406]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3377976271788898, 1.4282335506362127, 1.7152254603390884, 1.5218042957702171, 1.4771063064103735]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4156811628118575, 1.77487935864896, 2.141965316807775, 1.9209275543595785, 1.6515740435941852]}}