{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:40.451513", "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-02_to_2012-Feb-05_17.0_-13.5"}, "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": 2012020001803}, "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 02 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 05 2012"}, "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": 72152.59414361423}, "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": ["Angola"]}, "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": -13.5}, "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": 17.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "17.0\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": 18.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -14.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -12.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-02-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.47, -12.47], [17.0, -12.25], [17.25, -12.35], [17.5, -12.25], [18.03, -12.47], [18.18, -12.82], [18.25, -12.85], [18.5, -12.75], [19.03, -12.97], [19.25, -13.5], [19.03, -14.03], [18.5, -14.25], [18.25, -14.15], [18.0, -14.25], [17.75, -14.15], [17.5, -14.25], [17.25, -14.15], [17.0, -14.25], [16.47, -14.03], [16.25, -13.5], [16.35, -13.25], [16.25, -13.0], [16.47, -12.47]]]]}, "2012-02-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.32, -12.82], [14.35, -12.75], [14.25, -12.5], [14.47, -11.97], [15.0, -11.75], [15.25, -11.85], [15.5, -11.75], [16.03, -11.97], [16.18, -12.32], [16.25, -12.35], [16.5, -12.25], [16.75, -12.35], [17.0, -12.25], [17.25, -12.35], [17.5, -12.25], [18.03, -12.47], [18.18, -12.82], [18.25, -12.85], [18.5, -12.75], [19.03, -12.97], [19.25, -13.5], [19.03, -14.03], [18.68, -14.18], [18.53, -14.53], [18.0, -14.75], [17.75, -14.65], [17.5, -14.75], [17.25, -14.65], [17.0, -14.75], [16.75, -14.65], [16.5, -14.75], [16.25, -14.65], [16.0, -14.75], [15.47, -14.53], [15.32, -14.18], [15.25, -14.15], [15.18, -14.18], [15.03, -14.53], [14.5, -14.75], [14.25, -14.65], [14.0, -14.75], [13.47, -14.53], [13.25, -14.0], [13.47, -13.47], [13.82, -13.32], [13.97, -12.97], [14.32, -12.82]]]]}, "2012-02-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.32, -12.82], [14.35, -12.75], [14.25, -12.5], [14.47, -11.97], [15.0, -11.75], [15.25, -11.85], [15.5, -11.75], [16.03, -11.97], [16.18, -12.32], [16.25, -12.35], [16.5, -12.25], [16.75, -12.35], [17.0, -12.25], [17.25, -12.35], [17.5, -12.25], [18.03, -12.47], [18.18, -12.82], [18.25, -12.85], [18.5, -12.75], [19.03, -12.97], [19.25, -13.5], [19.03, -14.03], [18.68, -14.18], [18.53, -14.53], [18.0, -14.75], [17.75, -14.65], [17.5, -14.75], [17.25, -14.65], [17.0, -14.75], [16.75, -14.65], [16.5, -14.75], [16.25, -14.65], [16.0, -14.75], [15.47, -14.53], [15.32, -14.18], [15.25, -14.15], [15.18, -14.18], [15.03, -14.53], [14.5, -14.75], [14.25, -14.65], [14.0, -14.75], [13.47, -14.53], [13.25, -14.0], [13.47, -13.47], [13.82, -13.32], [13.97, -12.97], [14.32, -12.82]]]]}, "2012-02-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.32, -12.82], [14.35, -12.75], [14.25, -12.5], [14.47, -11.97], [15.0, -11.75], [15.25, -11.85], [15.5, -11.75], [16.03, -11.97], [16.18, -12.32], [16.25, -12.35], [16.5, -12.25], [16.75, -12.35], [17.0, -12.25], [17.25, -12.35], [17.5, -12.25], [18.03, -12.47], [18.18, -12.82], [18.53, -12.97], [18.75, -13.5], [18.65, -13.75], [18.75, -14.0], [18.53, -14.53], [18.0, -14.75], [17.75, -14.65], [17.5, -14.75], [17.25, -14.65], [17.0, -14.75], [16.75, -14.65], [16.5, -14.75], [16.25, -14.65], [16.0, -14.75], [15.47, -14.53], [15.32, -14.18], [15.25, -14.15], [15.18, -14.18], [15.03, -14.53], [14.5, -14.75], [14.25, -14.65], [14.0, -14.75], [13.47, -14.53], [13.25, -14.0], [13.47, -13.47], [13.82, -13.32], [13.97, -12.97], [14.32, -12.82]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.463151797629223}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.4976380949227073}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.10130114917723, 22.006390638365872, 22.57119789191313, 22.1186461368178]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.518321373590027, 25.074040793120105, 25.801433806660214, 25.705563051911042]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.901652506192382, 2.3214924319125814, 2.8984804679413165, 2.4186464641478524]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.547687688510564, 3.492224614628526, 4.463151797629223, 3.6356847847416134]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5490355670564337, 1.904086760973687, 2.2664366563822074, 1.8943618803010591]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.914941558530522, 2.5441844927893054, 3.15622684804921, 2.6397643060672964]}}