{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:43.799550", "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": "2017-Dec-07_to_2017-Dec-10_15.0_-21.5"}, "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": 2017120001614}, "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 07 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 10 2017"}, "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": 59963.18522837768}, "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": -21.5}, "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": 15.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "15.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 13.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 16.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -25.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -19.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-12-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.25, -20.5], [13.47, -19.97], [14.0, -19.75], [14.53, -19.97], [14.68, -20.32], [14.75, -20.35], [15.0, -20.25], [15.53, -20.47], [15.75, -21.0], [15.65, -21.25], [15.68, -21.32], [16.03, -21.47], [16.25, -22.0], [16.15, -22.25], [16.18, -22.32], [16.53, -22.47], [16.75, -23.0], [16.65, -23.25], [16.75, -23.5], [16.53, -24.03], [16.0, -24.25], [15.47, -24.03], [15.32, -23.68], [14.97, -23.53], [14.75, -23.0], [14.85, -22.75], [14.82, -22.68], [14.47, -22.53], [14.25, -22.0], [14.35, -21.75], [14.32, -21.68], [13.97, -21.53], [13.82, -21.18], [13.47, -21.03], [13.25, -20.5]]]]}, "2017-12-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.25, -20.5], [13.47, -19.97], [13.82, -19.82], [13.97, -19.47], [14.5, -19.25], [15.03, -19.47], [15.25, -20.0], [15.15, -20.25], [15.18, -20.32], [15.53, -20.47], [15.75, -21.0], [15.65, -21.25], [15.68, -21.32], [15.75, -21.35], [16.0, -21.25], [16.53, -21.47], [16.75, -22.0], [16.54, -22.5], [16.75, -23.0], [16.65, -23.25], [16.75, -23.5], [16.65, -23.75], [16.75, -24.0], [16.65, -24.25], [16.75, -24.5], [16.53, -25.03], [16.18, -25.18], [16.03, -25.53], [15.5, -25.75], [14.97, -25.53], [14.75, -25.0], [14.85, -24.75], [14.75, -24.5], [14.85, -24.25], [14.75, -24.0], [14.85, -23.75], [14.75, -23.5], [14.85, -23.25], [14.82, -23.18], [14.47, -23.03], [14.25, -22.5], [14.35, -22.25], [14.32, -22.18], [13.97, -22.03], [13.75, -21.5], [13.85, -21.25], [13.82, -21.18], [13.47, -21.03], [13.25, -20.5]]]]}, "2017-12-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.25, -20.5], [13.47, -19.97], [13.82, -19.82], [13.97, -19.47], [14.5, -19.25], [15.03, -19.47], [15.25, -20.0], [15.15, -20.25], [15.18, -20.32], [15.53, -20.47], [15.75, -21.0], [15.65, -21.25], [15.68, -21.32], [15.75, -21.35], [16.0, -21.25], [16.53, -21.47], [16.75, -22.0], [16.54, -22.5], [16.75, -23.0], [16.65, -23.25], [16.75, -23.5], [16.65, -23.75], [16.75, -24.0], [16.65, -24.25], [16.75, -24.5], [16.53, -25.03], [16.18, -25.18], [16.03, -25.53], [15.5, -25.75], [14.97, -25.53], [14.75, -25.0], [14.85, -24.75], [14.75, -24.5], [14.85, -24.25], [14.75, -24.0], [14.85, -23.75], [14.75, -23.5], [14.85, -23.25], [14.82, -23.18], [14.47, -23.03], [14.25, -22.5], [14.35, -22.25], [14.32, -22.18], [13.97, -22.03], [13.75, -21.5], [13.85, -21.25], [13.82, -21.18], [13.47, -21.03], [13.25, -20.5]]]]}, "2017-12-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.25, -20.5], [13.47, -19.97], [13.82, -19.82], [13.97, -19.47], [14.5, -19.25], [15.03, -19.47], [15.25, -20.0], [15.15, -20.25], [15.18, -20.32], [15.53, -20.47], [15.75, -21.0], [15.65, -21.25], [15.68, -21.32], [15.75, -21.35], [16.0, -21.25], [16.53, -21.47], [16.75, -22.0], [16.53, -22.53], [16.18, -22.68], [16.15, -22.75], [16.18, -22.82], [16.53, -22.97], [16.75, -23.5], [16.65, -23.75], [16.75, -24.0], [16.65, -24.25], [16.75, -24.5], [16.53, -25.03], [16.18, -25.18], [16.03, -25.53], [15.5, -25.75], [14.97, -25.53], [14.75, -25.0], [14.85, -24.75], [14.75, -24.5], [14.85, -24.25], [14.75, -24.0], [14.85, -23.75], [14.75, -23.5], [14.85, -23.25], [14.82, -23.18], [14.47, -23.03], [14.25, -22.5], [14.35, -22.25], [14.32, -22.18], [13.97, -22.03], [13.75, -21.5], [13.85, -21.25], [13.82, -21.18], [13.47, -21.03], [13.25, -20.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.6592648141905215}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.9737043080756567}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.355331766231245, 27.658285063581786, 28.159160657409586, 27.24204532881413]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.363577126596454, 29.270314325871652, 30.049895954336364, 28.95609586893039]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.6232036751475905, 3.9249390476934125, 4.493934075359308, 3.6539168922932133]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.459939374292048, 4.956347749394638, 5.6592648141905215, 4.41900783281659]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5564277077702797, 1.6860974683674796, 1.9205663090764424, 1.5555467156780554]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7602353822709722, 2.1026811249462583, 2.2370396253749454, 1.7855837808233304]}}