{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:32.503072", "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-Sep-27_to_2012-Sep-30_38.5_-5.5"}, "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": 2012090002694}, "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 27 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 30 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": 98795.43643440059}, "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": ["Kenya", "Somalia", "Tanzania"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Eastern-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": -5.5}, "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": 38.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "38.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 37.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 41.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -5.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 0.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.0, -4.25], [39.53, -4.47], [39.75, -5.0], [39.53, -5.53], [39.18, -5.68], [39.03, -6.03], [38.5, -6.25], [37.97, -6.03], [37.75, -5.5], [37.97, -4.97], [38.32, -4.82], [38.47, -4.47], [39.0, -4.25]]]]}, "2012-09-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.75, -4.5], [37.85, -4.25], [37.75, -4.0], [37.97, -3.47], [38.32, -3.32], [38.35, -3.25], [38.25, -3.0], [38.35, -2.75], [38.25, -2.5], [38.35, -2.25], [38.25, -2.0], [38.35, -1.75], [38.25, -1.5], [38.35, -1.25], [38.25, -1.0], [38.47, -0.47], [38.82, -0.32], [38.97, 0.03], [39.32, 0.18], [39.47, 0.53], [39.82, 0.68], [39.97, 1.03], [40.5, 1.25], [41.03, 1.03], [41.18, 0.68], [41.53, 0.53], [41.75, 0.0], [41.53, -0.53], [41.18, -0.68], [41.04, -1.0], [41.25, -1.5], [41.15, -1.75], [41.25, -2.0], [41.03, -2.53], [40.68, -2.68], [40.53, -3.03], [40.18, -3.18], [40.15, -3.25], [40.25, -3.5], [40.15, -3.75], [40.25, -4.0], [40.03, -4.53], [39.63, -4.7], [39.75, -5.0], [39.53, -5.53], [39.18, -5.68], [39.03, -6.03], [38.5, -6.25], [38.25, -6.15], [38.0, -6.25], [37.47, -6.03], [37.25, -5.5], [37.47, -4.97], [37.82, -4.82], [37.85, -4.75], [37.75, -4.5]]]]}, "2012-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.75, -4.5], [37.85, -4.25], [37.75, -4.0], [37.97, -3.47], [38.32, -3.32], [38.35, -3.25], [38.25, -3.0], [38.35, -2.75], [38.25, -2.5], [38.35, -2.25], [38.25, -2.0], [38.35, -1.75], [38.25, -1.5], [38.35, -1.25], [38.25, -1.0], [38.47, -0.47], [38.82, -0.32], [38.97, 0.03], [39.32, 0.18], [39.47, 0.53], [39.82, 0.68], [39.97, 1.03], [40.5, 1.25], [41.03, 1.03], [41.18, 0.68], [41.53, 0.53], [41.75, 0.0], [41.53, -0.53], [41.18, -0.68], [41.04, -1.0], [41.25, -1.5], [41.15, -1.75], [41.25, -2.0], [41.03, -2.53], [40.68, -2.68], [40.53, -3.03], [40.18, -3.18], [40.15, -3.25], [40.25, -3.5], [40.15, -3.75], [40.25, -4.0], [40.03, -4.53], [39.63, -4.7], [39.75, -5.0], [39.53, -5.53], [39.18, -5.68], [39.03, -6.03], [38.5, -6.25], [38.25, -6.15], [38.0, -6.25], [37.47, -6.03], [37.25, -5.5], [37.47, -4.97], [37.82, -4.82], [37.85, -4.75], [37.75, -4.5]]]]}, "2012-09-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.75, -4.5], [37.85, -4.25], [37.75, -4.0], [37.97, -3.47], [38.32, -3.32], [38.35, -3.25], [38.25, -3.0], [38.35, -2.75], [38.25, -2.5], [38.35, -2.25], [38.25, -2.0], [38.35, -1.75], [38.25, -1.5], [38.35, -1.25], [38.25, -1.0], [38.47, -0.47], [38.82, -0.32], [38.97, 0.03], [39.32, 0.18], [39.47, 0.53], [39.82, 0.68], [39.97, 1.03], [40.5, 1.25], [41.03, 1.03], [41.18, 0.68], [41.53, 0.53], [41.75, 0.0], [41.53, -0.53], [41.18, -0.68], [41.04, -1.0], [41.25, -1.5], [41.15, -1.75], [41.25, -2.0], [41.03, -2.53], [40.68, -2.68], [40.53, -3.03], [40.18, -3.18], [40.15, -3.25], [40.25, -3.5], [40.15, -3.75], [40.25, -4.0], [40.03, -4.53], [39.5, -4.75], [39.2, -4.62], [39.15, -4.75], [39.25, -5.0], [39.03, -5.53], [38.68, -5.68], [38.53, -6.03], [38.0, -6.25], [37.47, -6.03], [37.25, -5.5], [37.47, -4.97], [37.82, -4.82], [37.85, -4.75], [37.75, -4.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.6344724015414727}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.2088143271034444}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.271299027514033, 27.325742220247434, 27.56010120298515, 27.69112229213863]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.861308978995282, 29.964255939059, 30.13558707730948, 30.091639383541462]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.1027102062515155, 1.1049838824758655, 1.2932067339600408, 1.2366218421159545]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.2343983382384636, 1.3448281159024305, 1.5342919956582932, 1.6344724015414727]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.755239680951949, 1.507600918441816, 1.7256007623672092, 1.6272279797708196]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.940625931176837, 2.0179741411542715, 2.0325111495791037, 2.1596919705089097]}}