{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:44.672969", "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": "2012-Feb-21_to_2012-Feb-23_27.0_-22.0"}, "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": 2012020002464}, "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": "February 21 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 23 2012"}, "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": 108326.59092021757}, "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": ["Botswana", "South Africa", "Zimbabwe"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.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": -22.0}, "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": 27.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "27.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 25.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 29.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -24.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -20.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.47, -21.47], [25.82, -21.32], [25.97, -20.97], [26.32, -20.82], [26.47, -20.47], [27.0, -20.25], [27.25, -20.35], [27.5, -20.25], [27.75, -20.35], [28.0, -20.25], [28.53, -20.47], [28.68, -20.82], [29.03, -20.97], [29.25, -21.5], [29.15, -21.75], [29.25, -22.0], [29.04, -22.5], [29.18, -22.82], [29.53, -22.97], [29.75, -23.5], [29.65, -23.75], [29.68, -23.82], [30.03, -23.97], [30.25, -24.5], [30.03, -25.03], [29.5, -25.25], [29.25, -25.15], [29.0, -25.25], [28.47, -25.03], [28.32, -24.68], [28.0, -24.54], [27.5, -24.75], [27.25, -24.65], [27.0, -24.75], [26.75, -24.65], [26.5, -24.75], [25.97, -24.53], [25.82, -24.18], [25.47, -24.03], [25.25, -23.5], [25.46, -23.0], [25.25, -22.5], [25.35, -22.25], [25.25, -22.0], [25.47, -21.47]]]]}, "2012-02-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.47, -21.47], [25.82, -21.32], [25.97, -20.97], [26.32, -20.82], [26.47, -20.47], [27.0, -20.25], [27.25, -20.35], [27.5, -20.25], [27.75, -20.35], [28.0, -20.25], [28.53, -20.47], [28.68, -20.82], [29.03, -20.97], [29.25, -21.5], [29.15, -21.75], [29.25, -22.0], [29.04, -22.5], [29.18, -22.82], [29.53, -22.97], [29.75, -23.5], [29.65, -23.75], [29.68, -23.82], [30.03, -23.97], [30.25, -24.5], [30.03, -25.03], [29.5, -25.25], [29.25, -25.15], [29.0, -25.25], [28.47, -25.03], [28.32, -24.68], [28.0, -24.54], [27.5, -24.75], [27.25, -24.65], [27.0, -24.75], [26.75, -24.65], [26.5, -24.75], [25.97, -24.53], [25.82, -24.18], [25.47, -24.03], [25.25, -23.5], [25.46, -23.0], [25.25, -22.5], [25.35, -22.25], [25.25, -22.0], [25.47, -21.47]]]]}, "2012-02-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.47, -21.47], [25.82, -21.32], [25.97, -20.97], [26.32, -20.82], [26.47, -20.47], [27.0, -20.25], [27.25, -20.35], [27.5, -20.25], [27.75, -20.35], [28.0, -20.25], [28.53, -20.47], [28.68, -20.82], [29.03, -20.97], [29.25, -21.5], [29.15, -21.75], [29.25, -22.0], [29.04, -22.5], [29.18, -22.82], [29.53, -22.97], [29.75, -23.5], [29.65, -23.75], [29.68, -23.82], [30.03, -23.97], [30.25, -24.5], [30.03, -25.03], [29.5, -25.25], [29.25, -25.15], [29.0, -25.25], [28.47, -25.03], [28.32, -24.68], [28.0, -24.54], [27.5, -24.75], [27.25, -24.65], [27.0, -24.75], [26.75, -24.65], [26.5, -24.75], [25.97, -24.53], [25.82, -24.18], [25.47, -24.03], [25.25, -23.5], [25.46, -23.0], [25.25, -22.5], [25.35, -22.25], [25.25, -22.0], [25.47, -21.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.57623509752824}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.121433538352245}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.266605544000868, 29.286878445676052, 29.327394097562035]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.950148535014137, 31.681682352074517, 31.51542297313108]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.4242542592963465, 4.411938876893006, 4.528107478867382]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.408870357133026, 5.57623509752824, 5.268567642215146]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5118614535955377, 1.90710242423056, 1.9553900420068637]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.90445291347578, 2.2458676392120416, 2.1967966384369744]}}