{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:28.797550", "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": "2010-Apr-01_to_2010-Apr-06_17.5_-24.0"}, "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": 2010040000893}, "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": "April 01 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 06 2010"}, "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": 61773.544531085}, "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": ["Namibia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.Southern-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": -24.0}, "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": 17.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "17.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 16.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 19.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -26.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -23.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-04-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.5, -24.75], [18.03, -24.97], [18.25, -25.5], [18.03, -26.03], [17.5, -26.25], [16.97, -26.03], [16.75, -25.5], [16.97, -24.97], [17.5, -24.75]]]]}, "2010-04-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.35, -24.75], [16.25, -24.5], [16.47, -23.97], [16.82, -23.82], [16.97, -23.47], [17.5, -23.25], [18.03, -23.47], [18.18, -23.82], [18.53, -23.97], [18.75, -24.5], [18.65, -24.75], [18.68, -24.82], [19.03, -24.97], [19.25, -25.5], [19.15, -25.75], [19.25, -26.0], [19.03, -26.53], [18.5, -26.75], [17.97, -26.53], [17.8, -26.12], [17.5, -26.25], [17.25, -26.15], [17.0, -26.25], [16.47, -26.03], [16.25, -25.5], [16.35, -25.25], [16.25, -25.0], [16.35, -24.75]]]]}, "2010-04-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.35, -24.75], [16.25, -24.5], [16.47, -23.97], [16.82, -23.82], [16.85, -23.75], [16.75, -23.5], [16.97, -22.97], [17.5, -22.75], [17.75, -22.85], [18.0, -22.75], [18.53, -22.97], [18.68, -23.32], [19.03, -23.47], [19.25, -24.0], [19.15, -24.25], [19.18, -24.32], [19.53, -24.47], [19.68, -24.82], [20.03, -24.97], [20.25, -25.5], [20.15, -25.75], [20.25, -26.0], [20.03, -26.53], [19.5, -26.75], [19.0, -26.54], [18.5, -26.75], [17.97, -26.53], [17.8, -26.12], [17.5, -26.25], [17.25, -26.15], [17.0, -26.25], [16.47, -26.03], [16.25, -25.5], [16.35, -25.25], [16.25, -25.0], [16.35, -24.75]]]]}, "2010-04-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.35, -24.75], [16.25, -24.5], [16.47, -23.97], [16.82, -23.82], [16.85, -23.75], [16.75, -23.5], [16.97, -22.97], [17.5, -22.75], [17.75, -22.85], [18.0, -22.75], [18.25, -22.85], [18.5, -22.75], [18.75, -22.85], [19.0, -22.75], [19.53, -22.97], [19.75, -23.5], [19.53, -24.03], [19.18, -24.18], [19.15, -24.25], [19.18, -24.32], [19.53, -24.47], [19.68, -24.82], [20.03, -24.97], [20.25, -25.5], [20.15, -25.75], [20.25, -26.0], [20.03, -26.53], [19.5, -26.75], [19.0, -26.54], [18.5, -26.75], [17.97, -26.53], [17.75, -26.0], [17.85, -25.75], [17.82, -25.68], [17.75, -25.65], [17.68, -25.68], [17.53, -26.03], [17.0, -26.25], [16.47, -26.03], [16.25, -25.5], [16.35, -25.25], [16.25, -25.0], [16.35, -24.75]]]]}, "2010-04-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.97, -22.97], [17.5, -22.75], [17.75, -22.85], [18.0, -22.75], [18.25, -22.85], [18.5, -22.75], [18.75, -22.85], [19.0, -22.75], [19.53, -22.97], [19.75, -23.5], [19.53, -24.03], [19.18, -24.18], [19.15, -24.25], [19.18, -24.32], [19.53, -24.47], [19.68, -24.82], [20.03, -24.97], [20.25, -25.5], [20.15, -25.75], [20.25, -26.0], [20.03, -26.53], [19.5, -26.75], [18.97, -26.53], [18.82, -26.18], [18.47, -26.03], [18.25, -25.5], [18.35, -25.25], [18.32, -25.18], [17.97, -25.03], [17.82, -24.68], [17.75, -24.65], [17.5, -24.75], [16.97, -24.53], [16.75, -24.0], [16.85, -23.75], [16.75, -23.5], [16.97, -22.97]]]]}, "2010-04-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.97, -24.03], [17.75, -23.5], [17.97, -22.97], [18.5, -22.75], [18.75, -22.85], [19.0, -22.75], [19.53, -22.97], [19.75, -23.5], [19.53, -24.03], [19.0, -24.25], [18.75, -24.15], [18.5, -24.25], [17.97, -24.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.756074843452552}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.778206154150293}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.836074464173294, 26.622019109485052, 27.236071484502133, 27.088889542846232, 26.660022054514172, 26.21703662414302]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.836074464173294, 27.583560584263466, 28.6145405427406, 27.99467400412925, 27.298093654016782, 26.328753085233416]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.019475140022564, 3.465250942823998, 4.031742050466084, 3.979013306921437, 3.4353856344368787, 3.2919143745343433]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.019475140022564, 3.9546499884369837, 4.756074843452552, 4.400552584694822, 3.8994645339250837, 3.340056052221655]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.1358484746008808, 1.3394849473239983, 1.547814417853266, 1.5091641219448608, 1.3276095052041121, 1.3786111406873354]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.1358484746008808, 1.54854568829832, 1.7771004124434124, 1.6931220173233117, 1.4219017592907208, 1.3791996506661581]}}